The Purpose and Function of University Education

Purposes and functions of university education: My own reflection With the six year hard works in my secondary studies, finally I get into university. I am relieved that there is no more past paper and public examination on one hand but I find that I am lost on the other hand. As a freshman, the experience in first month of university life is out of my expectation: I am totally free! There are so many spare times and so few coursework to do. No more control from the class teachers. No more annoying reminders from my parents.All I have got is the time to play, play and play (and a little time for lessons, of course). When September has come to an end and October comes as an old friend, I start to wonder: Should my university life go like this? It seems that I am getting lost in a big forest, losing my way, since I do not have a goal. When I was studying in secondary school, there was one goal waiting for me to achieve – getting into university. Now, I have attained it. Then, wh at’s next? â€Å"University is not equal to vocational training institute. My class teacher has once told me. Now it appears in my mind suddenly. In theory, what you have chosen to study is highly likely to be your career after you graduate. Taking the BBA students as an example, which is the commonest, they are likely to participate in jobs related to finance when they finish their tertiary studies, and it is undeniable in practice. But would the same happen to students of arts like me? If I am going to take criminology as my major in year 2, what is my job going to be in the future? A policewoman?The future female Sherlock Holmes? If university is a place where you are going to decide your future career by your major, does it sound sensible that students major in English should be an English teacher? Definitely not, since there are many possibilities even you are majoring in English. Even though you are practicing a specific skill in university, it does not mean that you s hould give up the opportunity to discover new things. The theory I have just mentioned above is true, however, not absolutely true, especially to the arts students.Since there are many possibilities in the university life, I know that I will be given different chances to try out different things, which is new to me, and it will enable me to discover myself, know more about myself. I am convinced that this is the function of university education – providing a space for learning, discovering, and experiencing. Throughout these three processes, the main purpose of university education – rising up students who are able to think independently and work as a team or individually, can be fulfilled.Apparently, how to have a good job is the last thing for me to consider right now. At this moment, my goal is try to become an active learner, who can ask questions with confidence, get involved in the classes and clubs, and eventually become self-independent and self- initiative, wh ich is a vital characteristic I believe that it is more important than getting a high GPA. â€Å"Learn how to learn†, this is the reason why I am here, studying in university.

Sex Education in the School

In today's society there is an on going debate over sex education and its influence on our children. â€Å"The question is no longer should sex education be taught, but rather how it should be taught† (DeCarlo). With teenage pregnancy rates higher than ever and the imminent threat of the contraction of STD's, such as HIV, the role of sex education in the school is of greater importance now then ever before. By denying children sex education you are in a sense sheltering them from the harsh realities they are bound to encounter. Sex education has become an essential part of the curriculum and by removing the information provided by this class we'll be voluntarily putting our children in danger. During the teenage years every boy and girl undergo major changes in the body that most of the time need explaining. This underscores one of the most evident reasons for sexual education being taught to students. Sex education can help children to cope with the many changes caused by the onset of puberty. One such example is a female's first menstruation and the uneasiness they feel. If this girl had been informed of this change prior to its onset, then her ability to accept and understand it would be greatly enhanced. Hormonal and physical changes in the body begin without warning and a child needs to know why these changes are occurring. Students are taught about the anatomy of the human body and how and why it works the way it does. Knowing and understanding how ones body works is a fundamental part any persons life and ability to gain this knowledge should not be removed. At the beginning of puberty hormones start rushing and all teenagers begin to experience sexual urges. It's not something anyone, including a parent or teacher, can control. It's a natural function of the body and has been since the beginning of time. With this hormone rush comes experimentation among teenagers. They begin to explore their bodies along with the bodies of other people. â€Å"You can't prevent teenagers from having sex, no matter what you preach. If students are having sex they might as well do it the safe way. It's a way for schools to show that they actually care,† says Shauna Ling-Choung (qt. Richardson â€Å"When sex_† B1). Students need the support from schools to know they have somewhere to go for the good or bad. With sex education classes the students are taught about various methods of contraception, including abstinence. By teaching the students about the many types of contraception, the chance of contraceptives being used is greatly increased. Many schools have recently begun programs to distribute condoms to students in their schools in order to hopefully increase the use of condoms. A recent study shows that the availability of condoms in schools did in fact increase condom use. Condom access is a â€Å"low-cost harmless addition† to our current sex education programs (Richardson â€Å"Condoms in_† B8). When thinking of sex education for our children, the cliche‚ â€Å"better safe than sorry† should immediately come to mind. Along with teaching contraceptives to students the vital information of STD's are also taught. Currently, out of all age groups, teenagers have the highest rates of sexually transmitted diseases, with one in four young people contracting and STD by the age of twenty-one (DeCarlo). Included in the STD category is the HIV virus, which is spreading at alarming rates among our teenage population. It is believed that at least twenty percent of new patients with AIDS were infected during their teenage or early adult years. † And still some school leaders are trying to remove our best means of prevention of the disease: sex education (Roye 581) Teachers are able to educate students with the correct information on the many types of sexually transmitted diseases that exist in the world today. False information about ways of contracting diseases, symptoms of and treatments of STDs, and preventative measures are weeded out and students receive the accurate information about sexually transmitted diseases. Protection of our children from sexually transmitted diseases should start in the classroom where it can be assured that the correct and critical information will be provided to them. Nobody likes to be talked to like they are a child, and by denying teenagers sexual education, schools are in a sense talking down to them. By teaching them the facts about sex, teenagers feel a sense of maturity because it's a mature topic and they are fully aware of that. Students get the feeling that the adults in their lives feel that they are responsible enough to learn about this topic. Therefore bringing on more of a response from teenagers. They know they are being treated as adults so they are going to pay attention to what they are being taught and then act as adults and carry out what they were taught. Teenagers appreciate when adults treat them as equals, and anyone will see that children will always respond better to this than to being treated as a Much of the typical family structure in the United States and many other places in the world have deteriorated over the last century. A good portion of parents today are divorced and many of the families that haven't experienced divorce live with both parents working full time jobs. Families today aren't like the family on â€Å"Leave It to Beaver,† a sitcom that aired in the sixties; the mother isn't home all day baking and making sure that the house is clean. Since family structure has changed, so have the way children are being raised. Society cannot count on all parents to instill morals into their children and teach them the facts of life or even the difference between right and wrong these days. Parents just don't have the time for it. Recently the Vatican released a document stating that † parents alone cannot give children the positive sex education they need to develop healthy attitudes towards sex† (Euchner). Another view on the subject taken by the Nebraska Public School system is that sex education in today's society is to complicated to be left to â€Å"the varying influences of parental attitudes and haphazard environmental exposure† (Chaumont et al. ). Besides, even if the parent were around more often then not, the chances of a child approaching their parent about the â€Å"bird and the bees† is very unlikely. These children need to have a place were the information on this touchy subject is provided to them without them needing to ask. â€Å"Kids don't go asking their parents, this is the only way for them to find out answers because they are to embarrassed to ask anyone else,† says Pallodino, and eighteen-year-old from Virginia. (O'Hanlon B8). In order for children to grow up with the correct information regarding sex, it is necessary to have sex education provided to them in schools. Even though sex education seems as if it can do no wrong, there still remain many opponents, including many authors who clearly express their view, that are still against it in our schools. There are many reasons why people feel like this, two of which are they feel as if sex education does no good at all and another is that people feel that it is influencing students to have sex. Ellen Hopkins, author of â€Å"Sex is for Adults†, says that sex education does many great things , except for the one thing we want it to do, make our children more responsible. (Hopkins 589). She feels as though the information that students are receiving is not having any influence on them. The feeling that sex education classes are influencing teenagers to have sex is a feeling that is shared by William Kilpatrick. He states that â€Å"as the statistics show, American teenagers are living up to expectation. They are having more sex and using more condoms† (Kilpatrick 597). These two individuals, along with many others, feel that sex education is doing more harm then it is good. Teenage sexual activity has been raising steadily for more than two decades until now. A recent survey shows the first drop since the nineteen seventies. In 1990 girls that had engaged in sexual intercourse was at fifty-five percent, until 1995 when it dropped to fifty percent. The percentage of boys engaging in sexual intercourse also dropped by five percent. The use of condoms have tripled since the 1970's showing people are being safer about sex (Vobejda et al. A1). A poll done by Reuter's show that eighty-two percent of the people who participated in the survey supported sex education in schools (Yahoo). Studies obviously show that sex education courses are helping today's teenagers to become more responsible for their own actions. The information that sex education provides teenagers is indispensable. Schools are meant to educate our children in not just one topic but all topics. â€Å"Why would anyone on the state Board of Education not want to cover something comprehensively? Do we take that approach with history or math? † says Denice Bruce of Wichita, Kansas (Associated Press). Sexually educating our children is just important if not more important than math or history because sex education can mean the difference between life and death of your child.

Process Of Blurring Of Images Health And Social Care Essay

Blurring is a procedure of bandwidth decrease of an object ideal image which leads to the imperfect image formation procedure. This imperfectness may be due by comparative gesture between the camera and the object, or by an optical lens system being out of focus.Blurs can be introduced by atmospheric turbulency, aberrances in the optical system When aerial exposure are produced for distant detection intents. Beyond optical images instances like, electron micrographs are corrupted by spherical aberrances of the negatron lenses, and CT scans enduring from X-ray spread can besides take to film overing. Other than film overing effects, noise ever corrupts any recorded image. Noise can be caused because of many factors like device through which the image is created, by the recording medium, by measurement mistakes because of limited truth of the recording system, or by quantisation of the information for digital storage. The field of image Restoration ( image deblurring or image deconvolution ) is the procedure of Reconstruction or appraisal of the ideal image from a blurred and noisy one. Basically, it tries to execute an reverse operation of the imperfectnesss in the image formation system. The map behind degrading system and the noise are assumed to be known a priori in this Restoration procedure. But obtaining this information straight from the image formation procedure may non be posible in practial instance. Blur designation efforts to gauge the properties of the progressive imaging system from the observed degraded image itself before the Restoration procedure. A combination a pplication of image Restoration along with the fuzz designation is called as blind image deconvolution [ 11 ] . Image Restoration algorithms differs from image sweetening methods which are based on theoretical accounts for the degrading procedure and for the ideal image. Powerful Restoration algorithms can be generated in the presence a reasonably accurate fuzz theoretical account. In many practical scenario mold of the fuzz is non executable, rendering Restoration impossible. The restriction of fuzz theoretical accounts is frequently a factor of letdown. In other manner we must noe that if none of the fuzz theoretical accounts described in our work are applicable, so the corrupted image may good be beyond Restoration. So the implicit in fact is, alternatively of how much powerful blur designation and Restoration algorithms may be, the aim when capturing an image undeniably is to avoid the demand for reconstructing the image. All image Restoration methods that are described, fall under the category of additive spatially invariant Restoration filters. The blurring map assumed to Acts of the Apostless as a whirl meat or point-spread map vitamin D ( n1, n2 ) that does non vary spatially. Furthermore the statistical belongingss ( mean and correlativity map ) of the image and noise assume to be unchanged spatially. In these specfied restraints Restoration procedure can be carried out by agencies of a additive filter whose point-spread map is spatially invariant, i.e. , is changeless throughout the image. These patterning premises can be formulated mathmatically as follows. Leta degree Fahrenheit ( n1, n2 ) denotes the coveted ideal spatially distinct image free of any fuzz or noise, so the recorded image g ( n1, n2 ) is modeled as ( see besides Figure 1a ) [ 1 ] : is the noise which corrupts the bleary image. Here the aim of image Restoration is doing an estimation of the ideal image, given merely the bleary image, the blurring map and some information about the statistical belongingss of the ideal image and the noise. Figure 1: ( a ) Model for image formation in the spacial sphere. ( B ) Model for image formation in the Fourier sphere Equation ( 1 ) can be instead defined through its spectral equality. By using distinct Fourier transforms to ( 1 ) , we obtain the undermentioned representation ( see besides Figure 1b ) : Here are the spacial frequence co-ordinates, and capitals letters denote Fourier transforms. Either of ( 1 ) or ( 2 ) can be used for building Restoration algorithms. In pattern the spectral representation widely used since it leads to efficient executions of Restoration filters in the ( distinct ) Fourier sphere. In ( 1 ) and ( 2 ) , the noise is modeled as an linear term. Typically the noise is considered to be iid which has zero mean, by and large referred as white noise, i.e. spatially uncorrelated. In statistical footings this can be expressed as follows [ 15 ] : Here denotes the discrepancy or power of the noise and denotes the expected value operator. The approximative equality suggests equation ( 3 ) should keep on the norm, but that for a given image ( 3 ) holds merely about as a consequence of replacing the outlook by a pixelwise summing up over the image. Sometimes the noise can be described of incorporating Gaussian chance denseness map, but for none of the Restoration algorithms described in our work is compulsory. In general the noise may non be independent of the ideal image. This may be due to the fact that the image formation procedure may incorporate non-linear constituents, or the noise can be multiplicative alternatively of linear. The mentioned dependence is really frequently hard to pattern or to gauge. Hence, noise and ideal image are by and large assumed to be extraneous, that is tantamount to being uncorrelated because the noise has zero-mean. So mathematically the undermentioned status holds: Models ( 1 ) – ( 4 ) organize the rudimentss for the category of additive spatially invariant image Restoration [ 26 ] along with blur designation algorithms. In peculiar these theoretical accounts are applicable to monochromatic images. For colour images, two attacks can be considered. Firslty, we extend equations ( 1 ) – ( 4 ) to integrate multiple colour constituents. In batch of instances this is so the proper manner of patterning the job of colour image Restoration as the debasements of the different colour constituents like the tristimulus signals red-green-blue, luminance-hue-saturation, or luminance-chrominance are dependent among them [ 26 ] . This formulates a category of algorithms known as â€Å" multi-frame filters † [ 5,9 ] . A 2nd, more matter-of-fact, manner of covering with colour images for presuming the noises and fuzzs in each of the colour constituents to be independent. Restoration procedure of the colour constituents can so be carried out i ndependently [ 26 ] , presuming each colour constituent being regarded as a monochromatic image by itself, pretermiting the other colour constituents. Though evidently this theoretical account might be erroneous, acceptable consequences have been shown to be achieved following this procedure. Background When a exposure is taken in low light conditions or of a fast moving object, gesture fuzz can do important debasement of the image. This is caused by the comparative motion between the object and the detector in the camera while the shutter opens. Both the object traveling and camera shake contribute to this blurring. The job is peculiarly evident in low light conditions when the exposure clip can frequently be in the part of several seconds. Many methods are available for forestalling image gesture film overing at the clip of image gaining control and besides station processing images to take gesture fuzz subsequently. Equally good as in every twenty-four hours picture taking, the job is peculiarly of import to applications such as picture surveillance where low quality cameras are used to capture sequences of exposure of traveling objects ( normally people ) . Presently adopted techniques can be categorized as followers: Better hardware in the optical system of the camera to avoid unstabilisation. Post processing of the image to unblur by gauging the camera ‘s gesture From a individual exposure ( blind deconvolution ) From a sequence of exposure A intercrossed attack that measures the camera ‘s gesture during photograph gaining control. Figure2: Gesture Blur IMAGE BLUR MODEL Image fuzz is a common job. It may be due to the point spread map of the detector, detector gesture, or other grounds. Figure.3: Image Blur Model Process Linear theoretical account of observation system is given as g ( x, y ) = degree Fahrenheit ( x, y ) * H ( x, y ) + tungsten ( x, y ) CAUSES OF BLURRING The blur consequence or the debasement factor of an image can be due to many factors like: 1. Relative gesture during the procedure of image capturing utilizing camera or due to comparaitively long exposure times by the topic. 2. Out-of-focus by lens, usage of a extremely bulging lens, air current, or a short exposure clip taking to decrease of photons counts captured. 3. Scattered light disturbance confocal microscopy. Negative EFFECTS OF MOTION BLUR For telecasting athleticss where camera lens are of conventional types, they expose images 25 or 30 times per 2nd [ 23,24 ] . In this instance gesture fuzz can be avoided because it obscures the exact place of a missile or jock in slow gesture.Special cameras are used in this instances which can extinguish gesture blurring by taking images per 1/1000 2nd, and so conveying them over the class of the following 1/25 or 1/30 of a 2nd [ 23 ] . Although this gives sharper clear slow gesture rematchs, it can look unnatural at natural velocity because the oculus expects to see gesture film overing. Sometimes, procedure of deconvolution can take gesture fuzz from images. BLURRING The starting measure performed in the additive equation mentioned merely earlier is for making a point spread map to add fuzz to an image. The fuzz created utilizing a PSF filter in MATLab that can come close the additive gesture fuzz. This PSF was so convoluted with the original image to bring forth a bleary image. Convolution is a mathematical procedure by which a signal is assorted with a filter in order to happen the resulting signal. Here signal is image and the filter is the PSF. The denseness of fuzz added to the original image is dependent on two parametric quantities of the PSF, length of fuzz, and the angle created in the fuzz. These properties can be adjusted to bring forth different denseness of fuzz, but in most practical instances a length of 31 pels and an angle of 11 grades were found to be sufficient for gesture fuzz to the image. KNOWN PSF DEBLURRING After a distinct sum of fuzz was assorted to the original image, an effort was made to reconstruct the bleary image to recover the original signifier of the image. This can be achieved utilizing several algorithms. In our intervention, a bleary image, I, consequences from: I ( ten ) =s ( x ) *o ( x ) +n ( x ) Here ‘s ‘ is the PSF which gets convolved with the ideal image ‘o ‘ . Additionally, some linear noise factor, ‘n ‘ may be present in the medium of image gaining control. The good known method Inverse filter, employs a additive deconvolution method. Because the Inverse filter is a additive filter, it is computationally easy but leads to poorer consequences in the presence of noise. APPLICATIONS OF MOTION BLUR Photography When a image is captured usig a camera, alternatively of inactive case of the object the image represents the scene over a short period of clip which may include certain gesture. During the motion of the objects in a scene, an image of that scene is expected to stand for an integrating of all places of the corresponding objects along with the motion of camera ‘s point of view, during the period of exposure determined by the shutter velocity [ 25 ] . So the object traveling with regard to the camera appear blurred or smeared along with the way of comparative gesture. This smearing may either on the object that is traveling or may impact the inactive background if the camera is really traveling. This may gives a natural inherent aptitude in a movie or telecasting image, as human oculus behaves in a similar manner. As blur gets generated due to the comparative gesture between the camera and objects and the background scene, this can be avoided if the camera can track these traveling objects. In this instance, alternatively of long exposure times, the objects will look sharper but the background will look more bleary. COMPUTER ANIMATION Similarly, during the real-time computing machine life procedure each frame shows a inactive case in clip with zero gesture fuzz. This is the ground for a video game with a 25-30 frames per second will look staggered, while in the instance of natural gesture which is besides filmed at the same frame rate appears instead more uninterrupted. These following coevals picture games include gesture fuzz characteristic, particularly for simulation of vehicle games. During pre-rendered computing machine life ( ex: CGI films ) , as the renderer has more clip to pull each frame realistic gesture fuzz can be drawn [ 25 ] . BLUR MODELS The blurring consequence images modeled as per in ( 1 ) as the whirl procedure of an ideal image with a 2-D point-spread map ( PSF ) . The reading of ( 1 ) is that if the ideal image would dwell of a individual strength point or point beginning, this point would be recorded as a fanned strength pattern1, therefore the name point-spread map. It should be noted that point-spread maps ( PSF ) described here are spatially invariant as they are non a map of the spacial location under consideration. I assumes that the image is blurred in symmetric manner for every spacial location. PSFs that do non follow this premise are generated due to the rotational fuzzs such as turning wheels or local fuzzs for illustration, individual out of focal point while the background is in focal point. Spatially changing fuzzs can degrade the mold, Restoration and designation of images which is outside the range of the presented work and is still a ambitious undertaking. In general blurring procedure of images are spatially uninterrupted in nature. Blur theoretical accounts are represented in their uninterrupted signifiers, followed by their discrete ( sampled ) opposite numbers, as the designation and Restoration algorithms are ever based on spatially distinct images. The image trying rate is assumed to be choosen high plenty so as to minimise the ( aliasing ) mistakes involved reassigning the uninterrupted to distinct theoretical accounts. Spatially uninterrupted PSF of a fuzz by and large satisfies three restraints, as: takes on non-negative values merely, because of the natural philosophies of the implicit in image formation procedure, when covering with real-valued images the point-spread map vitamin D ( x, y ) is real-valued excessively, the imperfectnesss generated during the image formation procedure can be modeled as inactive operations on the information, i.e. no energy gets absorbed or generated. For spatially uninterrupted fuzzs a PSF is has to fulfill and for spatially distinct fuzzs: Following, we will show four normally point-spread maps ( PSF ) , which are common in practical state of affairss of involvement. NO BLUR When recorded image is absolutely imaged, no fuzz is evident to be presnt in the distinct image. So the spatially uninterrupted PSF can be described utilizing a Dirac delta map: and the spatially distinct PSF is described as a unit pulsation: Theoretically ( 6a ) can ne'er be satisfied. However, equation ( 6b ) is possible subjected to the sum of â€Å" distributing † in the uninterrupted image being smaller than the trying grid applied to obtain the distinct image. LINEAR MOTION BLUR By and large gesture fuzz can be distinguished due to comparative gesture between the recording device and the scene. This can be in a line drive interlingual rendition, a rotary motion, due to a sudden alteration of grading, or a certain combinations of these. Here the instance of a planetary interlingual rendition will be considered. When the scene to be recorded gets translated relation to the camera at a changeless speed of vrelative under an angle of radians along the horizontal axis during the interval [ 0, texposure ] , the deformation is really unidimensional. Specifying the â€Å" length of gesture † as L= vrelative texposure, the PSF is given by: The distinct version of ( 7a ) is non possible to capture in closed signifier look. For the particular instance when = 0, an appropriate estimate is derived as: Figure 4 ( a ) shows the modulus of the Fourier transmutation of PSF of gesture fuzz with L=7.5 and. This figure indicates that the fuzz is a horizontal low-pass filtering operation and that the fuzz contains spectral nothings along characteristic lines. The interline spacing of these characteristic nothing form is ( for the instance that N=M ) about equal to N/L. Figure 4 ( B ) shows the modulus of the Fourier transform for the instance of L=7.5 and. Besides for this PSF the distinct version vitamin D ( n1, n2 ) , is non easy arrived at. A harsh estimate is the following spatially distinct PSF: here C is a changeless that has to be chosen so that ( 5b ) is satisfied. The estimate signifier ( 8b ) is non right for the periphery elements of the point-spread map. A more accurate theoretical account for the periphery elements should affect the incorporate country covered by the spatially uninterrupted PSF, as illustrated in Figure 5. Figure 5 ( a ) suggests the periphery elements should to be calculated by integrating for truth. Figure 5 ( B ) represents the modulus of the Fourier transform for the PSF sing R=2.5. Here a low base on balls behaviour is observed ( in this instance both horizontally and vertically ) along with characteristic form of spectral nothings. Figure 5: ( a ) Firnge elements in instance of distinct out-of-focus fuzz that should be calculated by integrating, ( B ) Popular struggle front by the Fourier sphere, demoing ATMOSPHERIC TURBULENCE BLUR Atmospheric turbulency is considered a terrible restriction in distant detection. Although the fuzz introduced by atmospheric turbulency is supposed to depend on a assortment of external factors ( like temperature, wind velocity, exposure clip ) , for long-run exposures the point-spread map can be described moderately good by a Gaussian map: Here is the denseness of spread of the fuzz, and the changeless C is to be chosen so that ( 5a ) is satisfied. As ( 9a ) constitutes a PSF which can be dissociable in a horizontal and a perpendicular constituent, the distinct version of ( 9a ) is by and large obtained utilizing a 1-D distinct Gaussian PSF. This 1-D PSF is generated by a numerical discretization of the uninterrupted signifier PSF. For each PSF component, the 1-D uninterrupted PSF is a incorporate country covered by the 1-D sampling grid, viz. . The spatially uninterrupted PSF has to be truncated decently since it does non hold a finite support. The spatially distinct signifier estimate of ( 9a ) is so given by: Figure 6 shows this PSF in the spectral sphere. It can be observed that Gaussian fuzzs do non incorporate exact spectral nothing. Figure 6: Gaussian PSF by Fourier sphere. IMAGE RESTORATION ALGORITHMS In this subdivision the PSF of the fuzz is assumed to be satisfactorily known. A figure of methods are introduced for filtrating the fuzz from the recorded blurred image g ( n1, n2 ) utilizing a additive filter. Let the PSF of the additive Restoration filter, denoted as H ( n1, n2 ) . The restored image can be defined by [ 1 ] [ 2 ] or in the spectral sphere by The end of this subdivision is to plan appropriate Restoration filters h ( n1, n2 ) 2 or H ( u, V ) for usage in ( 10 ) . In image Restoration process the betterment in quality of the restored image over the recorded bleary image is measured by the signal-to-noise-ratio betterment. The signal-to-noise-ratio of the recorded ( blurred and noisy ) image is mathematically defined as follows in dBs: The signal-to-noise-ratio [ 1 ] [ 2 ] of the restored image is likewise defined as: Then, the betterment of signal-to-noise-ratio can be defined as The betterment for SNR is fundamentally a step for the decrease of dissension with the ideal image while comparing the distorted with restored image. It is of import to observe that all of the above signal/noise ratio steps can perchance computed merely in presence of the ideal image degree Fahrenheit ( n1, n2 ) , which is possible in an experimental apparatus or in a design stage of the Restoration algorithm. While using Restoration filters to the existent images of which the ideal image is non available, the ocular judgement of the restored image is the lone beginning of judgement. For this ground, it is desirable that, the Restoration filter should be slightly â€Å" tunable † by the liking of the user. Direct INVERSE FILTER A direct opposite filter is a additive filter whose point-spread map, hinv ( n1, n2 ) is the opposite of the blurring map vitamin D ( n1, n2 ) : Formulated as in ( 12 ) , direct opposite filters [ 22 ] seem to be hard undertaking to plan. However, the spectral opposite number of ( 12 ) utilizing Fourier transmutation instantly shows the possibility of the solution to this design job [ 1,2 ] : The advantage of utilizing direct opposite filter is that it requires merely the fuzz PSF as a priori cognition, which allows perfect Restoration in absence of noise, as can be seen by replacing ( 13 ) into ( 10b ) : In absence of noise, the 2nd term in ( 14 ) disappears to do the restored image indistinguishable to the ideal image. Unfortunately, several jobs exist with ( 14 ) . As D ( u, V ) is zero at selected frequences ( u, V ) the direct opposite filter may non be. This can go on in instance of additive gesture fuzz every bit good as out-of-focus fuzz described in the earlier subdivision. Even though the blurring map ‘s spectral representation D ( u, V ) approaches to be really little alternatively of being zero, the 2nd term in ( 14 ) , which is reverse filtered noise, becomes highly big. So this mechanism of direct opposite filtered images hence goes incorrect in presence of overly amplified noise. LEAST-SQUARES Filters To get the better of the issue of noise sensitiveness, assorted Restoration filters have been designed which are jointly called least-squares filters [ 7 ] [ 8 ] . Here we briefly discuss two really normally used least-square filters, Wiener filter and the forced least-squares filter. The Wiener filter is considered to be additive spatially invariant of the signifier ( 10a ) , in which the PSF H ( n1, n2 ) is selected tot minimise the mean-squared mistake ( MSE ) of the ideal and the restored image. This standard attempts create difference between the ideal and restored images i.e. the staying Restoration mistake should be every bit little as possible: where ( n1, n2 ) can be referred from equaton ( 10a ) . The close form solution of this minimisation job is called as the Wiener filter, and is easiest defined in the spectral sphere utilizing Fourier transmutation: Here D* ( u, V ) is defined as complex conjugate of D ( u, V ) , and Sf ( u, V ) and Sw ( u, v. ) These are the power spectrum of the corresponding ideal image and the noise, which is a step for the mean strength signal power per spacial frequence ( u, V ) in the image. In absence of the noise, Sw ( u, V ) = 0 so that the Wiener filter peers to inverse filter: In instance of recorded image gets noisy, the Wiener filter gets differentiated the Restoration procedure by opposite filtering and noise suppression for D ( u, V ) = 0. In instance of spacial where Sw ( u, V ) Sf ( u, V ) , the Wiener filter behaves like opposite filter, while for spacial type frequences where Sw ( u, V ) Sf ( u, V ) the Wiener filter behaves as a frequence rejection filter, i.e Hwiener ( u, V ) .If we assume that the noise is white noise ( iid ) , its power spectrum can be determined from the noise discrepancy, as: Therefore, gauging the noise discrepancy from the blurred recorded image to happen an estimation of Sw ( u, V ) is sufficient. This can besides be a tunable parametric quantity for the user of Wiener filter. Small values of will give a consequence which is approximated to the opposite filter, while big values runs a hazard of over-smoothing the restored image. The appraisal of Sf ( u, V ) is practically more debatable since the ideal image is really non available. Three possible attacks can be considered for this. Sf ( u, V ) can be replaced by the power spectrum estimations for the given blurred image which can counterbalance for the noise discrepancy In the above formulated equations Sg ( u, V ) of g ( n1, n2 ) is known as the eriodogram [ 26 ] which requires some apriori cognition, but has several defects. Though better calculators for the power spectrum exists, with the cost of more a priori cognition. Power spectrum Sf ( u, V ) can be estimated from a set of representative images, collected from a pool of images that have a similar content compared to the image which needs to be restored. Still there is demand of an appropriate calculator to acquire the power spectrum from collected images. The 3rd attack is a statistical theoretical account. These theoretical accounts contains parametric quantities which can be tuned to the existent image being used. This is a widely used image theoretical account which is popular in image Restoration every bit good as image compaction is represented as a 2-D causal auto-regressive theoretical account Here the strengths at the spacial location ( n1, n2 ) is the amount of leaden strengths of neighbouring spacial locations plus a little unpredictable constituent V ( n1, n2 ) , which can be modeled as white noise with discrepancy. 2-D car correlativity map has been estimated for average square mistake and used in the Yule-Walker equations [ 8 ] . After theoretical account parametric quantities for ( 20a ) have been chosen, the power spectrum can be defines as: The difference between noise smoothing and deblurring in Wiener filter is illustrated in Figure 7. 7 ( a ) to 7 ( degree Celsius ) shows the consequence as the discrepancy of the noise in the debauched image, i.e. is excessively big, optimally, and excessively little, severally. The ocular differences and differences in betterment in SNR are appeared to be significant. The power spectrum for original image has been estimated utilizing the theoretical account ( 20a ) . The consequence is apparent that inordinate noise elaboration of the earlier illustration is no longer present by dissembling of the spectral nothing as shown in Figure 7 ( vitamin D ) [ 26 ] . Figure 7: ( a ) Wiener Restoration of Figure 5 ( a ) along noise discrepancy equal to 35.0 ( SNR=3.7 dubnium ) , ( B ) Restoration method utilizing the noise discrepancy of 0.35 ( SNR=8.8 dubnium ) , ( degree Celsius ) Restoration method presuming the noise discrepancy is 0.0035 . ( vitamin D ) Magnitude of the Fourier series transform of the restored image in Figure 6b. The forced least-squares filter [ 7 ] [ 30 ] is another attack for get the better ofing short comes of the reverse filter i.e. inordinate noise elaboration and of the Wiener filter i.e. appraisal of the power spectrum of the ideal image. But it is still able to retain the simpleness of a spatially invariant additive filter. If the Restoration map is better, it will take to better restored image which is about equal to the recorded deformed image. Mathematically: As in opposite filter the estimate is made to be exact create jobs as a adjustment is done for noisy informations, which leads to over-fitting. A more sensible outlook for the restored image is expected to fulfill: Altough many solutions for the above relation exist, a standards must be used to take among them. The fact is that the reverse filter ever tends to magnify the noise tungsten ( n1, n2 ) , is to choose the solution that is every bit smooth as possible, creates overfitting. Let degree Celsius ( n1, n2 ) represent the PSF of a 2-D high-pass filter, so among the solutions that can fulfill ( 22 ) , the 1 that is chosen suppose to minimise is supposed to give the step for the high frequence content of the restored image. Minimizing this step will give a solution that belongs to the aggregation of possible solutions of ( 22 ) and has minimum high-frequency content. Discrete estimate of the 2nd derived function is chosen for degree Celsius ( n1, n2 ) , by and large called as the 2-D Laplacian operator. Constrained least-squares filter Hcls ( u, V ) is the solution to the above minimisation job, which can be easy formulated in the distinct Fourier sphere: Here is a regularisation parametric quantity that is expected to fulfill ( 22 ) . Based on the work of HUNT [ 7 ] , Reddi [ 30 ] has showed that the built-in equation can be solved iteratively with each loop necessitating O ( N ) operations, where N is the figure of sample points or observations.For more inside informations, refer [ 30 ] . REGULARIZED ADAPTIVE ITERATIVE FILTERS The filters discussed in the old two subdivisions are normally implemented in the Fourier sphere utilizing equation ( 10b ) . Unlike to spacial sphere execution in Eq. ( 10a ) , the direct whirl with the 2-D SPF H ( n1, n2 ) can be avoided. This has a certain advantage as H ( n1, n2 ) has a really big support, and typically has N*M nonzero filter coefficients although the PSF of the fuzz has a little support, which contains merely a few non-zero coefficients. But in some state of affairss spacial sphere whirls have borders over the Fourier sphere execution, viz. : where the dimensions of the blurred image are well big, where handiness of extra cognition the restored image is possible [ 26 ] , particularly if this cognition is non perchance representable in the signifier of Eq. ( 23 ) . Regularized Adaptive Iterative Restoration filters to manage the above state of affairss are described in [ 3 ] [ 10 ] [ 13 ] [ 14 ] [ 29 ] . Basically regularized adaptative iterative Restoration filters iteratively approaches the solution of the opposite filter, and can be represented mathematically in spacial sphere loop as: Here represents the Restoration consequence after ith loops. Tthe first loop is chosen to indistinguishable to. The loops in ( 25 ) has been independently covered many times. Harmonizing to ( 25 ) , during the loops the bleary version of the Current Restoration consequence is compared to the recorded image. The difference between the two is scaled and so added to the on-going Restoration consequence to give the Restoration consequence for following loop. In regularized adaptative iterative algorithms the most two of import concerns are, whether it does meet and if it is, to what restraint. Analyzing ( 25 ) says that its convergence occurs if the convergence parametric quantity satisfies: Using the fact that D ( u, V ) =1, this status simplifies to: If the figure of loops gets larger, so fi ( n1, n2, ) approaches the solution of the reverse filter: Figure 8: ( a ) Iterative Restoration method ( =1.9 ) of the image in Figure 5 ( a ) entire 10 loops ( SNR at 1.6 dubnium ) , ( B ) sum 100 loops ( SNR at 5.0 dubnium ) , ( degree Celsius ) At 500 loops ( SNR at 6.6 dubnium ) , ( vitamin D ) At 5000 loops ( SNR at -2.6 dubnium ) . Figure 8 shows four restored images obtained from the loop presented in ( 25 ) . Clearly higher the figure of loops, the restored image is more dominated by opposite filtered noise. The iterative strategy in ( 25 ) has several advantages every bit good as disadvantages that is discussed following. The first advantage is that ( 25 ) can work without the whirl of images with 2-D PSFs holding many coefficients. The lone whirl it needs is the PSF of the fuzz, which has comparatively holding few coefficients. Furthermore Fourier transforms are non required, doing ( 25 ) applicable arbitrary sized images. The following advantage is, the loop can be terminated in instance of an acceptable Restoration consequence has been achieved. By taking the bleary image, the loop increasingly goes on deblurring the image. The noise besides gets amplified with the loops. So the tradeoff the deepness of Restoration against the noise elaboration can be left to the user, and the loop can be stopped every bit shortly as acceptable partly deblurring is achieved. Another advantage is, the basic signifier ( 25 ) can be extended easy to include all types of a priori cognition. All cognition can be formulated as projective operations on the image [ 4 ] , so by using a projective operation the restored image can satisfiy the a priori cognition which is reflected by that operator. Sing fact that image strengths are non-negative they can be formulated as the undermentioned projective operation P: So the ensuing purposed iterative Restoration algorithm in ( 25 ) now becomes The demands on co-efficient for convergence and the belongingss of the concluding image are difficult to analyse and fall outside the range of our treatment. In general are typically about 1. Further, merely bulging projections P can be used in the loop ( 29 ) . A definition of a bulging projection can be quoted as, if any two images and fulfill the a priori information described by the projection P, so besides the combined image of these two, i.e. should fulfill this a priori information for every values of between 0 and 1. A concluding advantage, an iterative strategies is easy extended for spatially variant Restoration, i.e. Restoration where either the PSF or the theoretical account of the ideal image vary locally [ 9, 14 ] . On the other side, the iterative strategy in ( 25 ) has two disadvantages. The 2nd demand in Eq. ( 26b ) , where D ( u, V ) & gt ; 0, can non be satisfied by many fuzzs, such as gesture fuzz and out-of-focus fuzz etc. This deviates ( 25 ) to diverge for these types of fuzz. Next, compared to Wiener and constrained least-squares filter this basic strategy does non see any cognition about the spectral behaviour of the noise and the ideal image. But these disadvantages can be corrected by modifying the proposed iterative strategy as follows: Here and c ( n1, n2 ) carry the same significance as in forced least-squares filter. Now it is no longer required for D ( u, V ) to stay positive for all spacial frequences. In instance the loop is continued indefinitely, Eq. ( 31 ) will ensue in forced least-squares filtered image. In general pattern the loop usage to be terminated long earlier convergence occurs. It should be noted that although ( 31 ) seems to affect more whirl comparison to ( 25 ) , many of those whirls can be carried out one time and off-line [ 26 ] : where the bleary image g vitamin D ( n1, n2 ) and the fixed whirl meats K ( n1, n2 ) are given by Another important disadvantage of the loops in ( 25 ) is that ( 29 ) – ( 32 ) is the slow convergence. The restored image alterations merely a small in each loop. This necessasiates batch of loop ensuing more clip consumed. So these are steepest descent optimisation algorithms, which are slow in convergence. Regularized iterative image algorithm has been developed based on set of theoratical attack, where statistical information about the ideal image and statistical information about white noise can be incorporated into the iterative procedure.This algorithm which has the constrained least square algorithm as a particular instance, is besides extended into an adaptative iterative Restoration algorithm. For more inside informations refer [ 31 ] In recent yearss there are two iterative attacks, being used widely in the field of image Restoration, are: Lucy-Richardson Algorithm Lucy-Richardson algorithm [ 29 ] maximizes the likeliness map that the resulting image, when convolved with the PSF by presuming Poisson noise statistics. This map is really effectual when PSF is known but information about linear noise in the image is non present. Blind Deconvolution Algorithm This has similar attack as Lucy-Richardson algorithm but this unsighted deconvolution algorithm [ 27 ] can be used efficaciously when no information about the deformation ( film overing and noise ) is even known. This is what makes it more powerful than others. The algorithm can reconstruct the image and the PSF at the same time, by utilizing an iterative procedure similar to the accelerated, damped Lucy-Richardson algorithm. BLUR IDENTIFICATION ALGORITHMS In the old subdivision it was assumed that the point-spread map vitamin D ( n1, n2 ) of the fuzz was known. In many practical instances designation of the point-spread map has to be executed first and after that merely the existent Restoration procedure can get down put to deathing. If the camera object distances, misadjustment, camera gesture and, object gesture are known, we could – in theory – find the PSF analytically. Such state of affairss are, nevertheless, rare. A most common state of affairs is to gauge fuzz from the observed image itself. In the fuzz designation process, take a parametric theoretical account for the pointspread map ab initio. One manner of parametric fuzz theoretical accounts has been shown in Section II. As an illustration, if we know that the fuzz was due to gesture, the fuzz designation process would gauge the length and way of the gesture. An other manner of parametric fuzz theoretical accounts is to happen the 1 that describes the point-spread map vitamin D ( n1, n2 ) as a ( little ) set of coefficients within a given finite support. Within this scope the value of the PSF coefficients have to be estimated. For case, if a pre-analysis shows that the fuzz in the image resembles out-of-focus fuzz which, nevertheless, can non be described parametrically by equation ( 8b ) , the fuzz PSF can be modeled as a square matrix of – say – size 3 by 3, or 5 by 5. The blur designation [ 15,20,21 ] so needs the appraisal of 9 or 25 PSF coefficients, severally. This above two classs of fuzz appraisal are described in brief below. SPECTRAL BLUR ESTIMATION In the Figures 2 and 3 we have seen the two of import categories of fuzzs, viz. gesture and out-of-focus fuzz, have spectral nothing. The construction of the zero-patterns represents the type and grade of fuzz within these two categories. As the debauched image is already described by ( 2 ) , the spectral nothing of the PSF should besides be seeable in the Fourier transform G ( u, V ) , albeit that there will be deformation in zero-pattern because of the presence of noise. Figure 9: |G ( u, V ) | of two resulted blurred images Figure 9 shows the Fourier transform modulus of two images, one subjected to gesticulate fuzz and other to out-of-focus fuzz. From these images, the location of the zero-patterns and construction can be estimated. An estimation of the angle of gesture and length can be made if pattern contains dominant parallel lines of nothing. In instance dominant handbill forms occur, out-of-focus fuzz can be inferred and the grade of out-of-focus ( the parametric quantity R in equation ( 8 ) ) can be estimated. of the gesture fuzz. BLUR ESTIMATION USING EXPECTATION MAXIMIZATION ( EM ) In instance the PSF does non posses characteristic spectral nothing or in instance of parametric fuzz theoretical account like gesture or out-of-focus fuzz can non be assumed, so single coefficients of the PSF have to be estimated. For this demand EM appraisal processs have been developed [ 9, 12, 13, 18 ] . EM appraisal is a widely well-known technique for executing parametric quantity appraisal in state of affairss in the absence stochastic cognition about the parametric quantities to be estimated [ 15 ] . A item description of this EM attack can be found in [ 26 ] . Figure 4: Popular struggle front of the gesture fuzz by Fourier sphere, demoing Uniform OUT-OF-FOCUS BLUR When a camea images a 3-D scene onto a 2-D imagination plane, some parts of the scene are in focal point while remainder are non. When camera ‘s aperture is round, the image of any point beginning is really a little disc, called as the circle of confusion ( COC ) . The grade of defocus ( diameter of the COC ) really depends on the focal length every bit good as the aperture figure of the lens, and the distance among camera and the object. An accurate theoretical account should depict the diameter of the COC, every bit good as the strength distribution within the COC. In instance, the grade of defocusing is relatively larger than the wavelengths considered, a geometrical attack can be taken for a unvarying strength distribution within the COC. The spatially uninterrupted signifier of PSF of this unvarying out-of-focus fuzz with radius R is given by:

Cyber bullying(Argumentative Paper) Research Paper

Cyber bullying(Argumentative ) - Research Paper Example Insecurity issues have in turn sparked far reaching implications to the users. In particularly, insecurity issues in information technology have been closely associated with internet usability. This comes when the usefulness of internet cannot be presently overemphasized. It is for this reason that information technology and security issues become critical. Important, though, have been the concerns on how to address these forms of insecurity. The aspect on information technology that is paramount to this discussion is cyber bullying. Cyberbullying has been known to affect mostly the youth especially of school going age and partly adults who often use internet and mobile phones for communication purposes. As research would have it, cyberbullying has been said to vary with age. However, one thing that remains unclear is whether gender affects cyberbullying. This paper seeks to find out if actually gender is a factor as far as cyberbulling is concerns. The paper approaches this topic si ng different points of views as pointed out by a number of researchers. It involves controversy and issues opposing viewpoints of different researchers to this topic. Background information Cyber bullying has emerged to be the newest platform on which the youths are increasingly abusing each other According to (Hopeline 73). The more concerning issue is that there are currently no appropriate techniques that intervene for cyber bullying despite large numbers of kids who access the information technologies. Internet and cell phone communications have been cited as tools for Cyber bullying. According to Hopline, what appalls even more is that Cyber bullying occurs during kids’ class time. Hopline cites that cyber bullying has far reaching implications on kids, so that the victims (kids) of cyber bullying only feel safe when in their bedrooms. According to Hopline, it does not under all circumstances hold that cyber bullying causes physical harm. However, cyber bullying is mostl y associated with causation of harmful emotional fallout which may cumulate to other gar reaching consequences. Hopeline cites an example of Megan Meier; the girl aged 13 who committed suicide after belittlement by a hacker (her mother’s friend) that posed on MySpace as a boy aged 16 years. Hopline acknowledges that peer to peer cyber bullying is the most rampant, but its implications are not so severe. Effective curbing of cyber bullying would entail instilling of ethical morals among the youth, which will help them suit to information technologies. Hopline argues that there can be no an over-reactive approach as parents barring their kids from accessing technology in attempt to curb cyber bullying. Hopline suggests that an appropriate ramification procedure would entail the parents convening to open meetings, where then the parents can share and appropriately advice their kids on cyber bullying. Parents should be tactical so to dispel rebellion from their kids. Parents shou ld not ignore the fact that all have under high risks of cyber bullying; terms such as ‘some kids are immune’ should not exist since all are sensitive to belittlement. Other intervention techniques should encompass teaching the kids on the importance of respect. In the case where kids are cyber-bullied, appropriate intervention procedures should be followed before the situation gets out of hand. It is factual that kids are major victims of cyber bullying. It is

Cultural Awareness Personal Statement Example | Topics and Well Written Essays - 1000 words

Cultural Awareness - Personal Statement Example As a preliminary matter, the author was presented with a number of warnings. The United States Department of State had issued travel warnings and advisories for Thailand generally, and for southern Thailand more particularly. Potential travelers were advised to be wary of political strife in Thailand; this was as a result of increasing political protests and rumors that a military coup was possible. Moreover, travelers were advised to avoid the southern provinces, bordering Malaysia, because of a series of bombings, the burning of schools, and civil unrest between the Muslim majority in these southern provinces and the Buddhist majority in the rest of the Kingdom of Thailand. For the most part, the author heeded this advice and scheduled most of the holiday for Bangkok and northern Thailand. However, the author also spent the final four days in the southern province of Songkla, and the experience clearly demonstrated that the people being demonized and chastised in the travel advisor ies were hardly dangerous or threatening. In fact, the southern Thais proved to have been extraordinarily hospitable, more diverse than a Muslim designation might have suggested, and quite eager to mingle and talk with foreign tourists. First, the Muslim people in southern Thailand did not conform to stereotypes too often used to describe Muslim peoples and culture. The travel advisories had stirred the author's imagination. It was easy to imagine a southern Thailand replete with veiled women, mosques dotting the landscape, and suspicious gazes for tourists or other outsiders. The author's friends reinforced these stereotypes and cautioned, only half-jesting, that a kidnapping or a beheading might very well be around the corner. The reality couldn't have been more different. As an initial matter, the author was almost unable to distinguish Thai Muslims from Thai Buddhists. The shops and the streets were crowded with people wearing shorts, brand name shirts, baseball hats, and sunglasses. Veils could be detected only through the most diligent observation and a Muslim restaurant owner confided to the author that Thai Muslims enjoyed their pork and their alcohol. This lack of a strict devotion to the commonly understo od protocols of Islam could be seen and experienced everywhere. Young Thai Muslim girls decorated their faces with make-up, heavily Thai Muslim districts had karaoke bars and advertised in English, and people went about their daily business just as they seem to do here in the United States. The author, in short, experienced a southern Thailand that was fundamentally at odds with the views of friends and the statements made prior to the trip in a variety of travel advisories. By immersing oneself in a foreign culture, it is easier to strip away stereotypes, whether romantic or fearful, and to better understand the people and their way of life. Second, and quite surprising, the Thai Muslims did not view themselves as a separate nationality. One of the main reasons for the concerns of both friends and family was a firm belief that

Should Arizona Keep Trying to Vote Sheriff Joe Arpaio Out of Office Research Paper

Should Arizona Keep Trying to Vote Sheriff Joe Arpaio Out of Office - Research Paper Example Economic arguments have sometimes been in favor of the immigrants such as the fact that they are a cheap labor source for the industries in Arizona City. On the other hand, the social impact arguments have mostly been negative particularly because the immigrants are often seen to be undermining national identity, taking up resources and jobs from the local city residents as well as causing other related problems such as congestion. Although some analysts argue that immigration workers are providing the much needed labor for the booming construction industry in Arizona, it is undeniable that they have also imposed both social and economic costs on the Arizona residents. The costs incurred by the health care systems in the entire Pinal County have significantly risen over the past few years and this is largely attributed to the rapidly rising immigrant population (Okie, 527). Another social that is related to the rising number of immigrants is the currently high level of drug trafficki ng in the City and its environs. Many researchers however believe most of the illegal Mexican immigrants are smuggling illegal drugs such as Marijuana across the Mexican border and this as also resulted in high levels of violence and crimes in the city. The high number of illegal immigrants has also resulted into an increased crime rate in the City of Arizona. This is particularly evidenced by the fact most of the state and federal prisons in the city have doubled up their spending in a bid to accommodate the rising number of criminals who are mostly illegal immigrants. Additionally the cultural conflict between the immigrants and the locals is now evident in several parts of Arizona. The ethnic tension between the Mostly Hispanic immigrants and the locals is growing. Most locals regard the immigrants as â€Å"illegal aliens† and believe

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Management of service quality issue - Essay Example The valet parking service is generally provided by establishments such as hotels, restaurants, big business houses, malls and theatres. In the current research, various advantages and issues of valet parking with respect to the Address hotel has been discussed. The Address hotel is one of the well known and favourite destinations in Dubai. The hotel expects to increase its overall service quality and enhance customer satisfaction through better management of valet parking services. In order to identify the major problems in valet parking service quality, fishbone analysis and Pareto analysis tool have been used. Analysis of these two theories has revealed that there are six major problems which results in customer dissatisfaction and overall damage of the hotel’s brand image. After identification of these exact problems, various possible recommendations were suggested. Valet parking is convenient as well as affordable to the customers. In majority of cases, valet parking is ve ry cheap and affordable. Valet parking helps in improving the overall experience of the customer. The customers are able to start their experience with a pleasurable parking service facility. Introduction Valet parking is a common parking service provided by some stores, businesses and restaurants. The tradition was initiated in North America and then had spread to other parts of the globe such as Europe, Australia and Middle-east (Clarke and Chen, 2012). While self-parking customers need to find a parking place by themselves, in Valet parking the vehicles of customers are parked by an individual known as Valet. This kind of service either requires some charges to be paid by the car owner or it can be free of charge by the business or establishment. The major advantage of valet parking is that it is convenient. Customers need not walk distant places especially when they are carrying heavy things with them. A lot of handicapped customers rely on valet parking services as they cannot walk to the destination from a distant parking space. Valet parking is also convenient during bad weather conditions. In most of the high profile hotels and restaurants, valets are knowledgeable and professionals who are able to drive and place every model in their perfect places. It is also a method of saving space compared to normal street parking. The various venues where valet parking is currently used are single events, bar or restaurant locations, crowded settings, hotel locations, casinos, malls and airports (Kotler and Keller, 2006). Most individuals who provide valet parking services usually fall in the age group of 18-28. However, attendants as old as 60 can also be found working in this valet service. Turnover is quiet high for these services. Valet parking also includes certain types of equipments for example, valet podiums where vehicles are handed over to the valet, key boxes used for protecting and storing the keys and valet tickets to keep a check on the different ve hicles. In some urban areas and exceptional places, valet parking services are also provided for bikes. The purpose of the current project is to investigate and research the management of valet parking service. The project will throw light on how the service is being provided in five star hotels and how it is affecting the overall performance of these hotels. The organization taken for the project is Address hotel in Dubai. The Address hotel in Dubai is one of the well known hotel destinations. It is near by the sea shore and is situated in Dubai

Determination of Mercury content in Canned Tuna brands using Literature review

Determination of Mercury content in Canned Tuna brands using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and use Isoto - Literature review Example The relative lethal nature of mercury is dependent on its chemical form, methyl mercury as one of the substances existing in the environment. Additionally, this chemical form of mercury is also toxic due to its high liposolubility. However, all the forms of mercury released in the ecosystem undergo biogeochemical transformation processes hence converted to methyl mercury. The main exposure of mono methyl mercury to humans is consumption of fish. Mono methyl mercury (MMHg) represents the major type of mercury in fish. This is because it has the capability of biomagnification in the food chains within the marine. Organomercury compounds may also find their way into the environment from both anthropogenic sources and from production by natural in situ biogenic modifications. Exposure to mercury leads to a variety of signs and symptoms including dizziness, allergy, vomiting and muscular weakness. Furthermore, its toxicity elicits impaired hearing and vision as well as depressed immune sy stem. Eventually, its accumulation within the body leads to brain damage which consequently may lead to death. As it is the case with most anthropogenic, mercury finds its way into the aquatic environment in its inorganic form. Chlor-alkali industry is one of the major pollution source and gateway for mercury (Gao et al.). Consequently, monitoring of the mercury levels within the environment is not enough. Therefore, speciation analysis provides critical in useful information in the assessment of toxicity and health risks of mercury. Furthermore, such analysis helps in understanding the biogeochemical cycling of mercury compounds. As a result, enormous and concerted efforts have been made in developing reliable methods for mercury determination and speciation analysis in biological and fish samples. This review articulates with emphasis special attention to clean sample preparation, good storage sample procedures and performance of the different techniques (Lee et al). Mass spectrom etry (MS) can be considered as one of the most important analytical techniques in the analysis of element concentration. It is a method that has also been employed for isotope analysis, surface characterization and structural examination of bioinorganic compounds. In an attempt to understand metabolic pathways of toxic and toxicology in general, strategies have been developed. These novel approaches are important in obtaining qualitative and quantitative information regarding the elements, element species and their interactions. A variety of methods for determination of mercury have been well captured and elaborated in literature. The cold vapor atomic absorption spectrometry (CV AAS) has been the most preferred method in the analysis of mercury especially in foodstuffs. This is because the method has an efficient speed in addition to its simplicity. Moreover, this technique possesses relative freedom from obstructions and also has low operational costs as well as high sensitivity. The high sensitivity is very evident when mercury vapor is pre-concentrated on an amalgamation comprising gold element. Another variant of atomic absorption spectrometry is the graphite furnace technique, commonly abbreviated as GF AAS. This method allows for direct determination of many metals at trace and ultra trace levels in solid samples. Advantages of this technique include high sample throughput and low sample requirement in terms of the sample mass for analysis. In

Narrative Structure and Binary Oppositions Essay Example for Free

Narrative Structure and Binary Oppositions Essay This essay illustrates the understanding of writing aspects of visual composition because they are grammar of a language. In this image, we get to know good literature and good poetry is more than words and subject matter, art is more than pictures. The Safaricom Company had to choose the sentence structure, the style, and so on can make or break a good story. The designer of this graphic show the way the formal elements are arranged and this can make or break a good picture idea. The use of design principles applied to the visual elements is like visual grammar. In the background of this graphic, the children are playing and happy in school, at the same time it is like learning to read and write the language of vision because it develop you with a style of expressing visual ideas, this also helps you to become visual poets. Looking for the visual effects of design principles does not have to limit an artist’s options because it can focus an experimentation and choice making.. The six visual elements which includes: the color, the line, shape, value or tone, texture, volume or form are all display in this image, first we think of the elements as the basic visual material to this art because it is hard to imagine anything visual without the use of one or more of these elements. While, we think of the principles as was to work with and arrange the elements. See more: what is a narrative essay Colors are seen within the brain, it is the eyes that have the receptors that tell your brain what you are looking at, in the picture color explain a lot about this company. The color green was exploded in the visual element to shows their possession in Kenya and are the safari of Kenya with color used. Secondly, the lines used in the graphic design shows the border guiding the page layout and the design is shows the picture in a book form. The third thing is the shape which enable this design unique, even in the picture lots of shapes are shown to give you a better understanding about what information it’s poetry to the audience. Value or tone are shows who the picture was edited well and contrast at the proper level so suit the eyes of the viewers in Kenya , Safaricom had been there for the nation in it start-up. This was the first GSM Company and they had extended throughout the nation, they had brought lots of programs to the Kenyan people. This image tells how the company is in the front of the Kenyan people and ready to go extra mines for them, in the picture a boy is standing outside of a school fence with smile which means, Safari com company and on the campus there are lots of students and they are playing and dancing which poetry the services that the company Safaricom render to the Kenyan people. In another aspects of this graphic Safaricom company is promoting education programs, for those street kids out there who their parents doesn’t have the hands to sponsor them in school, the gender aspects have to do with promoting sexual gender equal because this have lead to many kids abuse and Safaricom is here in this picture saying â€Å"am here for a chance†. All these are just tell us how media are involved 95% in preaching polities. Some of the design principles or design rules are broken by artist for example: Emphasis- says â€Å"Center of interest.† It is about dominance and influence. Most artists put it a bit off center and balance it with some minor themes to maintain our interest. Some artists avoid emphasis on purpose. They want all parts of the work to be equally interesting. Harmony- As in music, complementary layers and/or effects can join to produce a more attractive whole. The composition is complex, but everything appears to fit with everything else. The whole is better than the sum of its parts. Unity- When nothing distracts from the whole, you have unity. Unity without variation can be uninteresting- like driving on a clear day through Western Kansas on the interstate. Unity with diversity generally has more to offer in both art and in life. Of course some very minimal art can be very claiming and at times even very evocative. Even the simple landscape in this artwork has a powerful effect. Opposition- uses contrasting visual concepts. That same background of this Safaricom advertisement â€Å"blue sky† landscape becomes very dramatic and expressive when a sun builds in the southwest. Principles can grow out of any artistic device that is used to produce an effect on the viewer. Balancing is one of the most important things because it is the consideration of the visual weight and importance in this image looks. It is the way of comparing the right and left side of the composition. The boy outside the fence is essentially symmetrical and the other students in the shade background, both sides are similar in visual weight and almost mirrored. Because symmetrical balance often looks more stiff and formal, sometimes it is called formal balance. Asymmetrical balance is more interesting, in the picture both sides again are similar in visual weight but not mirrored. It is more casual, dynamic, and relaxed feeling so it is often called informal balance. Radial balance is not very common but it is like a daisy image as we see in this picture with everything arranged around a center. Rose windows of cathedrals also use this design system too. Of course Safaricom, even though was the first communication company doesn’t look stiff and formal because we think of fluttering the company as nation number one for freedom and spontaneity. It is a case of subject matter and symbolism overpowering formal design effects. This Safaricom image can have many meanings and feeling beyond its â€Å"radiant† feeling. People might hate it as telling what they should do with their life and on the other hand, many of us can’t help thinking about this great company Safaricom. The extraordinarily textured painted the company. Since we have contemplated those thickly expressed colors and textures with their luscious painterly surface, every other company we see try to become an aesthetic experience filled with fruitful sensations. Variety is used in this image by elements changes. Repeating a similar shape but changing the size can give variety and unity at the same time. Keeping the same size, but changing the color can also give variety and unity at the same time. In visual composition, there are many ways you can change something while simulate Amorously keeping it the same while the depth is effects, space, projection toward the viewer add interest. Linear perspective in the real word makes things duller and small things brighter, and so on, to make the objects contradict realism. Many artists don’t believe in realism even though they could do it if they wanted to. It seems too boring to them. Realism wouldn’t be art for some artists. The way the image repetition is of the visual elements is, one is the size variation that can be applied to shape, form, etc. Notice how size can affect how close or far something can appear to be from the viewer. Example can be the boy in the close view and the rest of the students in a far view. Which one appears closer? Note how size relationships create depth or space in a composition. Children in first grade can already recognize closer and father based on size even though they wouldn’t typically use their pictures unless they were motivated to do so. Repetition can be used on all of the visual elements. If things are repeated without any Shape they can quickly get boring. However repetition with variation can be both interesting and comfortably familiar. Repetition gives motion. While variation can be used with all of the visual elements. See â€Å"variety† above. You can do this with all the elements. Artists do this all the time. Color saturation, sometimes called â€Å"color intensity† or brightness can also gives a feeling or depth and space. Which of these people are farther away in the image? Most second graders can see this effect when they are asked to look for it. These people create the illusion of depth even though they are all the same size. When we analyze artwork we often start with visual effects. We notice something happening. Then we try to figure out why it happens. Motion isn’t a principle. It is one of those magic effects when a still picture has motion. There are lots of ways to get motion. Motion examples: sometimes it has to do with orientation. A diagonal line is more dynamic than a horizontal or vertical line. Sometimes motion depends on the character of the element itself. A straight line may be less dynamic than a zigzag or a curving line. A blended are may appear to flow Depth is another magic effect. Illusion and magic are two threads of the same cloth. Example of depth; sometimes the illusion of depth has to do with orientation also, if you want a chair person to appear further away, you can place them higher on the picture plane. Sometimes the illusion of depth depends on the character of the element itself. A warm color can appear to project and cool color can appear to recede, other things being equal. A light tone (value) can appear to project and dark tone can appear to recede. We can define semiology or semiotics as the study of signs. We may not realize it, but in fact semiology can be applied to all sorts of human endeavors, including cinema, theatre, dance, architecture, painting, politics, medicine, history, and religion. That is, we use a variety of gestures (signs) in everyday life to convey message to people around us. We should think of messages (or texts) as systems of signs, e.g., lexical, graphic, and so on, which gain their effects via the constant clashes between these systems. For example, the menu we consult in a restaurant has been drawn up with reference to a structure, but this structure can be filled differently, according to time and place, e.g., breakfast or dinner (Barthes, 1964, p.28). The goal of semiological analysis is to identify the principle at work in the message or text, i.e., to determine the rhetoric or the grammar trying together all the elements. We get a sense of how language works as a system (Barthes, 1983, p.58) if we think of language as a pair of axes or two planes of metal activity, the vertical plane being the selective principle (vocabulary) and the horizontal dimension being the combinative principle (sentences0. For example, we might select items (words) from various categories in the vertical (associative) dimension, such as kitten, cat, muggy, tom, puss, mouser, sat, rested, crouched and so on, and link them in the horizontal (combinative) plane to formulate statements like the cat sat on the mat. Motivated signs are iconic signs: they are characterized by a natural relation between signifier and signified. A portrait or a photograph is iconic, in that the signifier represents the appearance of the signified. The faithfulness or the accuracy of the representation-the degree to which the signified is re-presented in the signified—is an inverse measure of how conventionalized it is. A realistic portrait (painting) is highly conventionalized this means that to signify the work relies on our experience of the sort of reality it re-presents. A photograph of a street scene communicates easily because of our familiarity with the reality it re-presents. It is important to recognize that in signs of high motivation, the signified is the determining influence, and in signs of low motivation, convention determines the form of the signifier. Finally, after intruding into this design principles and element used to convey information to the viewer, I will conclude by saying the safarcom GSM Company involve themselves in the life on the Kenyan to protect them but at the sometime media is put in front to shows politics. Safaricom choose this graphic because it explains a lot about the Kenyan cultural society. REFERENCES Barthes, R. (1964). â€Å"The structuralize Activity.† From Essais Critiques (winter) p. 82-88 Fiske, J, (1982). Introductions to communication. London: Methuen. Jacobson, R. (1960). â€Å"Linguistics and poetics. â€Å" In style in language, (ED.) pp.260-265 Williams, R. (1976). â€Å"Structural. â€Å"In key words. London; Fontana, pp. 253=59

Report On The Organisation Dominos Pizza Business Essay

Report On The Organisation Dominos Pizza Business Essay I have selected the organisation domino s pizza for the report ard since am working as an manager assistant in the forest hill franchise store. I had the opportunity to join this store in 2008. I made the discussion with franchise manager vennyliu and also had the opportunity to have a small discussion with dorninos new Zealand head operations Daniel Murray when he visited the forest hill store. Since I am working in this store for quite a while and knew how the process is going on in this institution so it was easy for me to pick this organisation for the assignment. IT was in 1960 two brothers torn monaghan and James purchased ased a small pizza store Dominick s a small pizza store in Ypsilanti, Michigan, in us. They bought the store for 575 us dollars. James sold his share to his brother and in 1965 torn renamed the store domino s pizza. It was on May 12 1983 dominos opened its first international store in Winnipeg, Manitoba ,Canada, By the year 1997 dominos opened the 1500th international location. It was in the year 1998 owner torn sold the 93 percent of the cormpany to Bain capital for one billion us dollars . After one year company named David A Brandon as the ceo and chairman of the company. it was in the year 2004 dominos began trading in new york stock exchange. It was in the year 2006 one dominos store in tallaght, Dublin, ireland, became the first in dominos history to hit a tUrnovOr of 3 million dollars. Domino s pizza is located in more than sixty countries now. Business demographics Dominos management and staff has to communicate locally, nationafly and internationally. Taking the example of dominos pizza franchise north shore where I am currently working as an assistant manager. We staff have to communicate with the co-workers and managers and franchise manager. The roster and the meeting notices are usually sent to our email, and if there are any changes or if we are unavailable we can email back to franchise manager. The payroll slip is also sent to our email. If there is any emergency like staff will not he able to work that days shift communication is usually made through phone and dominos has a toll free no 0800304050.The person who calls will not be charged and it can be used by landline and mobile. The communication between different stores is essential. It is mainly for the purpose of borrowing and return of the stock, Sometimes customer enquires about different stores telephone no. It is basically done through phone. Communication with the customer is direct verbally when they come to the store for purchase or any other queries .we use to take telephonie orders and online order as well. Our store does the online business very well nationally. Online ordering is one of the speciality of dominos pizza. Where customers can easily get the menu in the computer and they can select according to their taste and range. They can choose the option of delivering to their place or takeaway. There has been a survey conducted by the us dominos that people will be spending a certain amount of money for eating out, This would be like more than 5% will be delivered to their to their home and it will be online ordering and this would ncrease to 12% in the near future 4 tc 5 years. The communication of the suppliers are also through phone and faxing sometimes we order the food delivery through phone and in special cases like holidays the order will be sent as fax. International communication is also essential the us domino team and Australaian dominos team visits our store once a year. This information will be passed to franchise by the new Zealand head office. The report of the store visit and the upgrading required and changes needed will be sent to franchise though e mail. Courier and post. The courier and post are used for the supply of circulars and brochures. 2) Organsational goals Increase the profitability of busmess: Organisational goal of dominos is to increase the profitability of th business. Communication is an important factor in increasing the profitability. The sales should be increased and customer complaints should be reduced Advertisement campaign should be done. If there is any promotion by dominos it should be conveyed to customers and if any doubts arises from customer it should be sorted out. There are some promotions which it will be in the system but staff may not know about it. It should be discussed wth the franchise manager and should be conveyed to the customer if there is any customer complaints it should be discused in the store and it shouId be noted that the similar complaint never arises in future. If he customer sends the complaint to the dom nos head oflice the franchise has to send a report to head office showing all thedetails of corrective action taken by the store. Employee motivation:communication plays an important role in employee motivation. Financial rewardc areone of the key motivation factors. When the store crosses particular sales the employees get an incentive.AppreciatiOn in work are also good motivation and it should be communicated to the employee verbally by store manage when particular employee does a good job or finishes a particular hard task. The job security are also conveyed to the employee if an employee is performing well the message will be conveyed to him by the area manager that he is not going to lose his job. 3) Organisational culture and ethics since the employees in dominos are a multicultural. People from different parts of tie world work in the forest hill domino store.There are Chinese, Koreans, Europeans and Indians working in the store. the team should be following an ethhcs in the store for example the people working from China they will be returning to china during thL Chinese new year and during this period other nationaIites will be covering their shift. dominos has an in store ethics for eeverything one of it is behaviour to customer:, even if the customers get angry staff should be polite to them and apologise for any of the mistakes and not argue with customer. even though the communication is in English between the staff members but usuaily Chinese people talk to each other in Chinese and 80% of staff are ChinosO and there will be at least one Asian working in each. shift, 4) Management of knowledge resources: in the organistion franchice manager and the store manager possess the knowledge for the business.it includes the day today running, payroll,food ordering, recruiting new staff, training new staff ,and the new products and new prmotions will be sent to the company by email from head office and that emails will he fowarded to the staff.Banking and other financial matters are done by the store manager. Dominos has online site for training and thats called doti and every sstaff of dominos has to go online and get the online training If there requirers any sort of details the head office person comes directly for help and they clear the doubt. There was a problem in food ordering and the new Zealand head came straight to the shop and cleared the doubts. 5) Group dynamics: Employees make the group and that makes a team.. Usually people working in each shift of dominos can be considered a team. There will be emotional stress from employees especially when they are working on Friday and Saturday evening shifts and this will be sorted out by putting or replacing an additional experienced person. When the conflict arises in the team each individual in the team will be asked questions personally and as a group and final solution is found out by getting the answers from employees. Employees are also put in different sections like make line to counter and counter to delvery position. So each person can look at different angles of work and how each one does their duty in each sections, The basic terminology of forming,storming,norming and performing is there in our store as well to make the team well knit and to be connected to each othcr. 6) Meeting management Communication process are essential in running the meeting successfully. In our store we have a meeting room.Invitation to meeting to all staff members are done through calling them on phone and telling them the time of meeting. The meetng can be of anything like a customer complaint which is serious something like found a foreign product in the pizza and customer was admitted to hospital. The food from the customer was taken and send to the quality assurance department and a nominal amount was paid by the supplier of dominos. So what need to be done and how to handle the situation will be discussed and minutes will be taken and the action taken in the meeting will also he taken down. sometimes when the inspection team from Australia visited our store and we got a good marks in that inspection the management decided to have a meeting and a party at sky City hotels. This was published in the notice board and it was sent to a11 staff members email dnd also it was communicated verbally as well. The time place , when , where should be informed to whom(people attending the meeting). 7) Stakeholders: Customers: customers are communicated verbally when they come to store. and also througn phone since there is telephone ordering in the store Managementcomrnuniaiion with the management is basically verbally when the managers are in the store and use of telephone and email are used to pass vital information. Suppose there is an inspection from head office then the area manager will telephone the matter to the staff. The pay slips and roster are usually send to the email. Staff: The communication with staff is usually verbal and texting are also used to send the informatioin wnich are not vital. Bank: Dominos forest bill store deals with WestPaC bank and the dealings are usually through phone,emall the banking statements and discuss verbally sometimes with the bank if any errors has occurred sometimes the customer wltl be charged twice when they order online that has to be sorted out with the bank first and then return the money to the customer. 8) NetwOrks: store is equipped with computer and online facIlity is available for ordering. Distribution of flyers to the public which will increase the business of the dominos and display tne dominos price boards near the store and there is a car which is specifically for the advertisement. it is written the name dominos and price of the pizza are mentioned in the car. Distribution of promotional material who visits the store basically they are given discount vouchers when they use it they get the discount. Conclusions It was in 1965 the dominos started in us it was in the year 2008 new franchise store of dominos was opened in forest hill north shore. I had the opportunity to join this forest hill store as customer service representative, and was promoted to assistant manager within six months. The communication between the staff members and franchise manager and store manager are through emails, telephone, texts and verbal communicaton. The organisational goals are increasuing the profitability of the of the business and communication is impoertant. Sales should be increased and customer complaints customer complaints should be reduced. In employee motivation communication plays a vital part appreciation by the store manager and job security to the employees also offered to the employee. North shore dominos are having a multicultural and 80% staff are Chinese basic medium of language is english. Asians, speak in Chinese to their co-workers and dominos have a solid ethics especlally if the customers are angry the staff should apologise. In the organisation the franchise manager and the store managers possess the knowledge for the business. It includes the day today runnmg, payroll. food ordering,recruiting new staf, training new staff,and the new products and new promotions will be sent to the company by email from head office and that email will be forwarded to the staff. Banking and other financial matters are done by the the store manager. Dominos has an on line site for training and that is called doti and every staff of dominos has to go online and get online training. There will be emotional stress from employees especially when they are working on Friday and Saturday evening shifts and this will be sorted out by putting or replacing an additional experienced person. Communication process are essential in running the meeting successfully. In our store we have a meeting room.Invitation to meeting to all staff members are done through calling them on phone and telling them the time of meeting. The meetng can be of anything like a customer complaint which is serious something like found a foreign product in the pizza and customer was admitted to hospital. The food from the customer was taken and send to the quality assurance department and a nominal amount was paid by the supplier of dominos. So what need to be done and how to handle the situation will be discussed and minutes will be taken and the action taken in the meeting will also he taken down. The communication to the customers, staff, management, and bank are uasually done through verbal,through telephone,emails and texts. Recommendation It will be better to start a dominos club in forest hill and those who join the club for a nominal fee will he getting the discountsd on each purchase they make from any new Zealand store,The club members will be given 50% discount on public holidays and no surcharge will be applied for club members. These club members whO actively purchase from dominos store will be participating in a lucky draw twice a year. They will be given the new menu, changes in the menu and new products available in dominos through email. Each lucky person will be given the opportunity to distribute the flyers of dominos forest hill once a week in the dominos advertisement car, the name will be choosen from lucky draw. This enables the people to ineract socially and communicate and grow the business.