Benjamin Banneker :: History

Benjamin Banneker Benjamin Banneker was an astronomer, scientist, mathematician, surveyor, clock-maker, author, and social critic. Most notable about his accomplishments was that despite racial constraints and little formal education, he was a self-taught man. By the end of his life, his achievements were well-known around the world. Unlike many blacks of his time, Banneker was not born into slavery. The maternal side of his family determined this fate. His grandmother Mary Walsh was a white Englishwoman who was sentenced to seven years of servitude for stealing milk. She was sent from England to America to serve as an indentured servant. After she finished her sentence, she bought some land and two African slaves. She married one of them, named Bannaky, and they had many children, one of whom was named Mary. Like her mother, when Mary married, she bought a slave and married him. Mary and Robert had several children, including Banneker. Banneker was born in 1731 just outside of Baltimore, Maryland. Banneker's education began in the early years of his childhood. Banneker and his siblings were taught to read by their grandmother Molly, who used the Bible as a lesson book. When Banneker was twelve, a Quaker named Peter Heinrich moved next to the Banneker farm and established a school for boys, which Banneker attended. He excelled in mathematics and even progressed beyond the ability of his teacher. At the age of twenty-one, his abilities were finally utilized. He met a man named Josef Levi who showed him a pocket watch. Banneker was so fascinated that Levi gave him the watch. He studied how it worked, drew a picture of it, and made mathematical calculations for the parts. He worked on building the clock for two years. In 1753, it was completed. It was made of wood and he had carved the gears by hand. This was the first clock built in the United States. For more than forty years, the clock struck every hour. In addition to creating America's first clock, Banneker had an interest in astronomy. When Banneker's friend Andrew Ellicott died, he left him books on astronomy, scientific instruments, and a telescope. Banneker began to study astronomy and made mathematical calculations of the stars and constellations. He used these calculations to correctly predict a solar eclipse that took place on April 14, 1789. His abilities in astronomy and mathematics led him to create an almanac in 1792.

Effect Of Different Noise Reduction Health And Social Care Essay

Abstract-The intent of this paper is to measure the consequence of different noise decrease filters on computed imaging ( CT ) images. In peculiar, denoising filters based on the combination of Gaussian and Prewitt operators and on anisotropic diffusion are proposed. Simulation consequences show that the proposed techniques increase the image quality and let the usage of a low-dose CT protocol.Index Terms-Computed imaging ( CT ) , denoising filters, image quality, radiation dosageComputed imaging ( CT ) is a wireless in writing review method that generates a 3-D image of the interior of an object from a big series of 2-D images taken on a cross-sectional plane of the same object. In most clinical conditions, CT has been necessary in adjunction to conventional skiagraphy. By and large talking, conventional radiogram depict a 3-D object as a 2-D image, produced by an X-ray tubing, which rotates around the organic structure of the stationary patient. of Hounsfield graduated tables that represents the country of involvement. The available grey graduated table is spread over the chosen scope. For this purpose, two parametric quantities are defined, i.e. , windowing breadth, which defines the difference between the upper and lower bounds of the selected scope, and windowing centre, which represents the centre of the window. After a cross-sectional image is acquired, the patient is advanced through the gauntry into the following stationary place, and so the following image is acquired. Improvement in tubing engineering, computing machine, and hardware public presentations has led to an development of CT scanners, cut downing the acquisition scan times and bettering the declaration. A first development of the traditional CT scanner is the coiling ( or helical ) scanner [ 1 ] . It is based on the uninterrupted patient gesture through the gauntry combined with the interrupted tubing rotary motion. The name of this scanner engineering derives from the coiling way traced o ut by the X-ray beam. The major advantages of coiling scanning compared with the traditional attack consist of its improved velocity and spacial declaration. To farther cut down the scan clip, the multislice CT scanner has been developed [ 2 ] . This system uses multiple rows of sensors. This manner, the throughput of the patient is well increased. However, multislice scanners generate an increased sum of informations compared with the single-slice scanner, and practically, the throughput of patients is limited by the clip taken to retrace the acquired informations. In add-on, diagnostic CT imaging involves a trade-off between the image quality and the radiation dosage ; hence, the decrease of the CT image noise is important to cut down the acquisition clip without deteriorating the contrast and the signal-to noise ratio. The visual image of the anatomic constructions by agencies of CT is affected by two effects, viz. , blurring, which reduces the visibleness of little object, and n oise, which reduces the visibleness of low-contrast objects. During scanning, the sum of blurring is determined by the focal topographic point size and the sensor size, whereas at the clip of image Reconstruction procedure, blurring is due to the voxel size and the type of applied filter. Another common process to scan the whole organic structure, giving 3-D images, is magnetic resonance imagination ( MRI ) , which is based on magnetic belongingss of the H content of tissues. The MRI scanner is a tubing surrounded by a elephantine round magnet. The patient is placed on a movable bed that is inserted into the strong magnet, which forces H atoms in the patient ‘s organic structure to aline in the magnetic field way. When wireless moving ridges are applied, they perturb the magnetisation equilibrium by tipping the magnetisation in different waies. As the RF moving ridges turn off, the H atoms lose energy breathing their ain RF signals. Different types of tissues generate differen t signals. The collected informations are reconstructed into a 2-D array. MRI is a noninvasive scrutiny because the patients are non exposed to the radiation dosage, MRI is good suited for soft tissues. MRI is more expensive than CT. II. RADIATION DOSE AND IMAGE QUALITY CT histories for 47 % of whole medical radiation, although it represents merely 7 % of entire radiology scrutinies. Hence, the development of techniques for cut downing the radiation dosage becomes indispensable, peculiarly in paediatric applications [ 3 ] . In conventional skiagraphy imagination, it is normally clear when overexposure has taken topographic point. This is non true in CT, because the sum of radiation adsorbed by the patient depends on many proficient parametric quantities, which can automatically be controlled by CT scanners to equilibrate the high image quality and the exposure dosage. Then, it is possible that the differences between an equal image and a high-quality image ( obtained with higher exposure ) are non so instantly apparent. Unfortunately, as the radiation additions, the associated hazard of malignant neoplastic disease is increased, although this is highly little. To adhere the image quality to the radiation dosage, a batch of dose forms were developed. The Computed Tomography Dose Index, along with its discrepancies, includes a set of standard parametric quantities used to depict CT-associated dosage. It is defined as the integral of the dose distribution profile ( measured along a line analogue to the axis of rotary motion of the lamp ) divided by the nominal piece thickness. Many proficient factors contribute to the strength dosage in CT. In sequence, the chief CT parametric quantities and their deductions in the diagnostic quality of the CT tests are investigated. 1 ) Tube current ( in factory amperes ) and gantry rotary motion clip: These parametric quantities are straight relative to the radiation dosage. Their merchandise ( in mAs ) affects the figure of photons emitted by the X-ray beam, and it is responsible for the radiation exposure. Furthermore, an addition in mill amperes produces warming of the anode of the X-ray tubing. 2 ) Tube electromotive force extremum ( kVp ) : It is relative to square root of the dosage. This parametric quantity controls the speed at which the negatrons collide with the anode, and it straight affects X-ray incursion. Furthermore, by utilizing high values of kVp, it is possible to cut down the difference in tissue densenesss, and this can degrade the image contrast. 3 ) Pitch: It is defined as the ratio of the table distance traveled in one 360a- ¦ rotary motion and the entire collimated breadth of the X-ray beam. A rise in pitch produces a decrease of the radiation dosage but, at the same clip, decreases both the piece sensitiveness and the z-axis declaration. Many CT empirical protocols to set scan scenes have been proposed [ 5 ] . Generally, in CT scrutinies, a high radiation dosage consequences in high-quality images. A lower dose leads to the addition in image noise and consequences in un crisp images. This is more critical in low-contrast soft-tissue imagination like abdominal or liver CT. The relationship between the image quality and the dosage in CT is comparatively complex, affecting the interplay of a figure of factors, including noise, axial and longitudinal declarations, and piece width [ 6 ] . Depending on the diagnostic undertaking, these factors interact to find image sensitiveness ( i.e. , the ability to comprehend low-contras t constructions ) and visibleness of inside informations III. CT IMAGE NOISE CT images are per se noisy, and this poses important challenges for image reading, peculiarly in the context of low-dose and high-throughput informations analysis. CT noise affects the visibleness of low-contrast objects. By utilizing well-engineered CT scanners, it is sensible to pretermit the electronic noise caused by electronic devices [ 7 ] . Then, in the CT image, the primary subscriber to the entire noise is the quantum noise, which represents the random fluctuation in the fading coefficients of the single tissue voxels [ 8 ] . In fact, it is possible that two voxels of the same tissue produce different CT values. A possible attack to cut down the noise is the usage of big voxels, which absorb a batch of photons, guaranting a more accurate measuring of the fading coefficients. In this paper, some image filters to cut down the noise part were proposed. In a first measure, the statistical belongingss of image noise in CT tests were investigated. As evident in the literature, noi se mold and the manner to cut down it are common jobs in most imaging applications. In many image processing applications, a suited denoising stage is frequently required before any relevant information could be extracted from analyzed images. This is peculiarly necessary when few images are available for analysis. A batch of surveies have proved the Gaussianity of the pixel image generated by CT scanners [ 9 ] – [ 10 ] . This consequence permits us to set up the stochastic image theoretical account and to carry on a statistical image analysis of CT images IV. MATERIALS AND METHODS In this paper, 20 high-dose thorax CT images supplied by the Radiologist staff of â€Å" G. Moscati † Taranto Hospital have been examined. In peculiar, our attending was pointed to chest scrutinies due to high frequence by radiotherapists look intoing chest pathology, every bit good as the good handiness of this type of images. In fact, in the thorax, CT is by and large better than medical imaging analysis such as MRI for the hollow entrails. Furthermore, lung is the lone organ whose vass can be traced without utilizing contrast media, and this simplifies the image amplification. All images ( 512 A- 512 pels ) were in Digital Imaging and Communications in Medicine format, which represents the criterion in radiology and cardiology imagination industry for informations exchange and image-related information. This standard groups information into information sets, including of import features such as image size and format, acquisition parametric quantities, equipment description, and patient information [ 16 ] . The examined images were acquired by agencies of a coiling CT scanner with the undermentioned acquisition puting: the tubing electromotive force extremum is 120 kVp, the tubing current is 375 ma, and the piece thickness is 7.5 millimeter. Image visual image was performed by utilizing the criterion windowing parametric quantities for thorax CT, i.e. , windowing centre of 30 HU and windowing breadth of 350 HU. Each image was corrupted by linear zero-mean white Gaussian noise to imitate a low-dose CT image. To this purpose, we have simulated the decrease in the tubing current degree by following an sum of noise in understanding with the consequences of old surveies about simulation of dose decrease in CT scrutinies [ 11 ] . To be more precise, we have used a degree noise ( standard divergence = 25 HU ) that about simulates the lowest tubing current degree ( 40 ma ) adopted in CT analysis. This value corresponds to the current degree recommended for paediatric thorax CT scrutinies [ 12 ] . Fig. 1 shows an illustration of an original high-dose thorax image. ] . To cut down the noise consequence, different low-pass filters have mostly been used in medical image analysis, but they have the disadvantage to present film overing borders. In fact, all smoothing filters, while smoothing out the noise, besides take high frequence border characteristics by degrading the localisation and the contrast. Therefore, it is necessary to equilibrate the tradeoff among Fig. 1Original CT image obtained with a high dosage of radiation. noise suppression, image deblurring, and edge sensing. To this purpose, a low-pass filter combined with an border sensor operator was proposed. In peculiar, Gaussian, averaging, and unsharp filters were tested to smooth the noise, whereas Prewitt and Sobel operators were used for border designation. The experimental consequences showed that the combination of Gaussian and Prewitt offers best public presentations. Successively, a nonlinear denoising technique has been tested, and its public presentations have been compared with the Gaussian-Prewitt filtering technique. Anisotropic diffusion is a selective and nonlinear filtering technique that improves image quality, taking the noise while continuing and even heightening inside informations. The anisotropic diffusion procedure employs the diffusion coefficients to find the sum of smoothing that should be applied to each pel of the image. The diffusion procedure is based on an iterative method, and it is described by agencies of the un dermentioned diffusion equation where Iti, J is the strength of the pel at place I, J and at the tth loop ; cN, cesium, cerium, and cW are the diffusion coefficients in the four waies ( north, south, east, and west ) ; parametersa?†¡NI, a?†¡SI, a?†¡EI, and a? »a?†¡WI are the nearest-neighbor differences of strength in the four waies ; and I » represents a coefficient that assures the stableness of the theoretical account, runing in the interval [ 0-0.25 ] . The initial status ( t = 0 ) of the diffusion equation is the strength pels of the original image. The diffusion coefficients are updated at every loop as a map of strength gradient. Normally, the two following maps were used for coefficient computation [ 21 ] : ( 2 ) where K is a control parametric quantity. The first map favours high-contrast borders over low contrast borders, whereas the 2nd emphasizes broad countries over smaller countries. A proper pick of the diffusion map non merely preserves but besides enhances the borders. This map monotonically decreases with the addition in gradient strength a?†¡I. The control parametric quantity should be chosen to bring forth maximal smoothing, where noise is supposed to be present at that place forward, it is possible to cipher K to happen the maximal value of diffusion flow ( hundred a? » a?†¡I ) and take it to be equal to the noise degree. This manner, the undermentioned K values are obtained for two diffusion maps ( 2 ) [ 23 ] : ( 3 ) where I?n is the standard divergence of the noise calculated in the noisy image background. The appraisal of the noise degree in a corrupted image is usually based on the computation of the standard divergence of the pels in the homogenous zone ( e.g. , background ) . For this ground, the pel indexes of the original image background, matching to the zones where there is no signal ( Ii, ,j = 0 ) , have been calculated. Then, these indexes are used to cipher the standard divergence in the noisy image. In the first estimate, we have supposed that the noise criterion divergence is changeless throughout the image. Therefore, to take into history the non stationarity of noise, we have calculated the K value as a map of local noise features. The noise is assumed to be statistically independent of the original image. We consider the differences in strength in the four waies, i.e. , ( 4 ) It is good known that the noise discrepancy of the amount of two independent noisy signals is the amount of the noise discrepancies of the two constituents. Therefore, it can easy be shown that the discrepancy of the noise is non affected by the operations in ( 4 ) , because the noise is assumed to be a white signal, i.e. , different pels are non correlated. Then, the noise discrepancies of I, DN, DS, DE, andDW are the same. To gauge the local noise criterion divergence, we consider a sub image of size M ( M = 2m + 1 ) , where the undermentioned relationship is applied: ( 5 ) It is possible to observe that the local mean I?D, I, ,j is taken into history. In fact, even if the planetary noise mean is zero, locally, the mean is normally nonzero. The estimated local criterion divergence is replaced in ( 3 ) , obtaining four K values for each diffusion map. The diffusion equation does non take into history the border waies. In fact, they are considered ever vertically or horizontally displayed. It is possible to better the public presentation of the diffusion filter by increasing the action of the filter on the waies parallel to the border and diminishing the filtrating action on perpendicular waies. To this purpose, is modified by adding new footings depending on the border way [ 12 ] , A suited mask of size N is used to pull out a sub image, and the upper limit of the strength gradient is calculated to happen the border way. The size N depends on the image belongingss. If N is excessively little, the figure of mask pels is non sufficient to verify if an border issues and to cipher its orientation. If N is excessively big, it is possible to pull out a sub array incorporating more than one border orientation ; in this instance, the computation of the maximal strength gradient produces wrong consequences. V. RESULTS To measure the consequence of noise add-on on the original images, the comparative RMS mistake eRMS was calculated as follows: ( 7 ) Fig 5 ( a ) loop 0 image where Io is the original high-dose image, I is the original image corrupted by Gaussian noise, and R and C are the row and column Numberss, severally. Experimental consequences have shown that this parametric quantity is, on Fig 5 ( B ) Iteration 1 image Fig 5 ( degree Celsius ) Iteration 2image Fig 5 ( vitamin D ) enhanced image loop mean, approximately 13 % .Successively, ( 7 ) was used to cipher the noise decrease obtained by using the proposed filtering techniques on the corrupted image. In this instance, in ( 7 ) , I represents the filtered noisy image. In a first measure, the filter obtained by uniting Gaussian and Prewitt filters was tested. This technique allows diminishing the mean comparative mistake to 10 % . Successively, the anisotropic filter was tested. Several simulations have been used to put up the filter parametric quantities. In peculiar, a first set of trials has been carried out to compare the public presentations of the filter obtained by ciphering the diffusion coefficients by agencies of the two maps ( 2 ) . The trial consequences show that the 2nd map produces somewhat better public presentations in footings of comparative RMS mistake. Probably, this is due to the belongingss of chest CT images, where the big parts are prevailing with regard to the countries with high contrast borders. Further simulations have been performed to place the figure of loops for the diffusion procedure. Fig. 5 ( a-c ) shows the average values of comparative RMS mistakes obtained in all filtering image trials versus the loop figure. It is possible to observe that, for an loop figure less than 4, eRMS monotonically decreases ; otherwise, eRMS monotonically grows. Therefore, three loops have been used in the filtering trials. Furthermore, several simulations have been performed to find the size of the two masks used to gauge the local noise criterion divergence and border waies, severally. The analysis of trial consequences has led to take a size M = N = 7 for both masks. Finally, the public presentations of the Gaussian-Prewitt and anisotropic filters have been compared. The experimental consequences highlight that, utilizing the anisotropic filter, it is possible to diminish eRMS to about 6 % . Fig. 5. ( vitamin D ) shows an illustration of the public presentation of anisotropic filtering and of filtrating obtained by uniting Gauss and Prewitt operators applied on a noisy image VI. Decision In this paper, an analysis of denoising techniques applied to CT images has been presented with the purpose of increasing the dependability of CT scrutinies obtained with low-dose radiation. First, the chief proficient parametric quantities act uponing the radiation dosage and their deductions for diagnostic quality were investigated. Successively, the chief causes of CT noise and its statistical belongingss were analyzed. Finally, some image filters to cut down the noise part were proposed. In peculiar, a combination of Gaussian and Prewitt filters was ab initio tested, obtaining a RMS of 10 % . Successively, a filtering technique based on anisotropic diffusion was applied. Several simulations have been carried out to take the best filter parametric quantities. This manner, it has been possible to diminish the comparative mistake to about 6 % .

Professional Codes And Standards Of Practice - 1258 Words

In order to resolve any ethical issue, a certain approach to address the case is necessary to reach the solution. Several of the most important techniques is to fully acknowledge the problem by gathering all of the facts, using problem-solving methods, and appealing to professional codes and standards of practice. In this paper, the following scenario will be addressed and analyzed: Professor Xavier is a tenured professor of engineering who teaches at a large institution as a licensed professional engineer. One of his students, Jean Grey, tells him that during an exam for another class taught by Professor Osterman, a classmate named Scott Summers apparently used his phone to take a picture of an exam question and sent it to someone. Jean also tells Professor Xavier that she had informed Professor Osterman about Scott, and then Professor Osterman spoke to Scott about his actions. However, Scott did not face any further consequences resulting from his behavior. Given this situation, th e actions of each person will be discussed using ethical theories, along with the application of professional codes of ethics to the responses of Professor Xavier and Professor Osterman, as well as applying the line drawing method to discuss the ethical obligations of both professors. It is essential to point out the actions of each individual in the scenario mentioned and discuss the ethics each person exhibits. It begins with Jean Grey, who first reported the case of Scott Summers cheating onShow MoreRelatedThe Code Of Professional Standards Of Practice And Behavior993 Words   |  4 PagesMidwives, and health visitors as well as handle professional misconduct complaints and issue guidance for registered practitioners. The NMC was set up with the core responsibility of protecting the public by ensuring appropriate standard are set, reviewed and monitored for education, training, professional conduct and performance (Nursing and Midwifery Council, 2015). 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Understanding Communicative Competence

The term communicative competence refers to both the tacit knowledge of a language and the ability to use it effectively. Its also called  communication competence, and its the key to social acceptance. The concept of communicative competence (a term coined by linguist Dell Hymes in 1972) grew out of resistance to the concept of linguistic competence introduced by Noam Chomsky. Most scholars now consider linguistic competence to be a part of communicative competence. Examples and Observations Why have so many scholars, from so many fields, studied communicative competence within so many relational, institutional, and cultural contexts? Our hunch is that scholars, as well as the contemporary Western societies in which most live and work, widely accept the following tacit beliefs: (a) within any situation, not all things that can be said and done are equally competent; (b) success in personal and professional relationships depends, in no small part, on communicative competence; and (c) most people display incompetence in at least a few situations, and a smaller number are judged incompetent across many situations.(Wilson and Sabee) By far the most important development in TESOL has been the emphasis on a communicative approach in language teaching (Coste, 1976; Roulet, 1972; Widdowson, 1978). The one thing that everyone is certain about is the necessity to use language for communicative purposes in the classroom. Consequently, the concern for teaching linguistic competence has widened to include communicative competence, the socially appropriate use of language, and the methods reflect this shift from form to function.(Paulston) Hymes on Competence We have then to account for the fact that a normal child acquires knowledge of sentences not only as grammatical, but also as appropriate. He or she acquires competence as to when to speak, when not, and as to what to talk about with whom, when, where, in what manner. In short, a child becomes able to accomplish a repertoire of  speech acts, to take part in speech events, and to evaluate their accomplishment by others. This competence, moreover, is integral with attitudes, values, and motivations concerning language, its features and uses, and integral with competence for, and attitudes toward, the interrelation of language with the other code of communicative conduct.(Hymes) Canale and Swains Model of Communicative Competence In Theoretical Bases of Communicative Approaches to Second Language Teaching and Testing (Applied Linguistics, 1980), Michael Canale and Merrill Swain identified these four components of communicative competence: (i) Grammatical competence includes knowledge of phonology, orthography, vocabulary, word formation and sentence formation.(ii) Sociolinguistic competence includes knowledge of sociocultural rules of use. It is concerned with the learners ability to handle for example settings, topics and communicative functions in different sociolinguistic contexts. In addition, it deals with the use of appropriate grammatical forms for different communicative functions in different sociolinguistic contexts.(iii) Discourse competence is related to the learners mastery of understanding and producing texts in the modes of listening, speaking, reading and writing. It deals with cohesion and coherence in different types of texts.(iv) Strategic competence refers to compensatory strategies in case of grammatical or sociolinguistic or discourse difficulties, such as the use of reference sources, grammatical and lexical paraphrase, requests for repetition, clarification, slower speech, or problems in addres sing strangers when unsure of their social status or in finding the right cohesion devices. It is also concerned with such performance factors as coping with the nuisance of background noise or using gap fillers.(Peterwagner) Resources and Further Reading Canale, Michael, and Merrill Swain. â€Å"Theoretical Bases Of Communicative Approaches To Second Language Teaching And Testing.† Applied Linguistics, I, no. 1, 1 Mar. 1980, pp. 1-47, doi:10.1093/applin/i.1.1.Chomsky, Noam. Aspects of the Theory of Syntax. MIT, 1965.Hymes, Dell H. â€Å"Models of the Interaction of Language and Social Life.† Directions in Sociolinguistics: The Ethnography of Communication, edited by John J. Gumperz and Dell Hymes, Wiley-Blackwell, 1991, pp. 35-71.Hymes, Dell H. â€Å"On Communicative Competence.† Sociolinguistics: Selected Readings, edited by John Bernard Pride and Janet Holmes, Penguin, 1985, pp. 269-293.Paulston, Christina Bratt. Linguistics and Communicative Competence: Topics in ESL. Multilingual Matters, 1992.Peterwagner, Reinhold. What Is the Matter with Communicative Competence?: An Analysis to Encourage Teachers of English to Assess the Very Basis of Their Teaching. LIT Verlang, 2005.Rickheit, Gert, and Hans Strohner, edi tors. Handbook of Communication Competence: Handbooks of Applied Linguistics. De Gruyter, 2010.Wilson, Steven R., and Christina M. Sabee. â€Å"Explicating Communicative Competence as a Theoretical Term.† Handbook of Communication and Social Interaction Skills, edited by John O. Greene and Brant Raney Burleson, Lawrence Erlbaum Associates, 2003, pp. 3-50.

The Capitalists Who Shaped Post-Civil War America - 956 Words

Accurately established by many historians, the capitalists who shaped post-Civil War industrial America were regarded as corrupt â€Å"robber barons†. In a society in which there was a severe imbalance in the dynamics of the economy, these selfish individuals viewed this as an opportunity to advance in their financial status. Thus, they acquired fortunes for themselves while purposely overseeing the struggles of the people around them. Presented in Document A, â€Å"as liveried carriage appear; so do barefooted children†, proved to be a true description of life during the 19th century. In hopes of rebuilding America, the capitalists’ hunger for wealth only widened the gap between the rich and poor. During the 1800’s, business leaders who built†¦show more content†¦As the capitalists continued their corruption, â€Å"the wealthy class became wealthier; but the poorer class became more dependant. The gulf between the employed and the employer was g rowing wider† (Document A). Similarly, many actions performed by these capitalists, contributed to the sorrowful lives of many farmers, who were struggling to survive. Pursuing this further, the rich soil of the West was becoming poor, and floods contributed to the problem, and, eventually caused erosion. Beginning in the summer of 1887, a series of droughts forced many people to abandon their farms and towns. As circumstances worsened, farmers were beginning to be controlled by corporations and processors. The farmers were at the mercy of many trusts, which, in turn, could control the productivity and raise prices to high levels. Furthermore, during the late 19th century, many farmers considered monopolies, trusts, railroads, and money shortages as evident threats to their lifestyle. The rise of these monopolies and trusts worried many farmers because they felt that the disappearance of competition would lead to erratic and unreasonable price rises that would harm consumers. Oftentimes, these â€Å"robber barons† would prevent competitors from reaching the markets by restricting their ability to transport their goods. In Document E, James B. Weaver wrote of the main weapons of the trust-organized commerce: threats, intimidation, bribery, fraud,Show MoreRelatedThe Role of Capitalists Essay1267 Words   |  6 PagesNick  Reynolds   12/4/14   U.S  History   G  Block   The  Role  of  Capitalists  DBQ   Many  capitalists  worked  to  shape  post  Civil  War  America  through  building  new   businesses  to  employ  many  people  and  create  new  jobs  as  well  as  change  America  through   creating  new  inventions  such  as  a  faster  and  cheaper  way  of  producing  steel  and  discovering   the  uses  and  increasing  demand  for  oil.  All  of  these  inventions  would  change  America,  with   the  faster  and  more  efficient  method  of  steel  production  massive  skyscrapers  rose  in  the  Read MoreThe Cold War Developed Between The Soviet Union And The United States847 Words   |  4 PagesThe Cold War developed between the Soviet Union and the United States in response to post-World War II tensions between the two nations. The U.S. and the U.S.S.R. emerged from World War II as the only two countries able to propagate their specific social and political systems on a global scale. With expansive capitalist (United States) or communist (USSR) ideologies and powerful military forces, each nation feared and distrusted the other. This cultural clash resulted in mutual suspicions, propagandaRead MoreThe Cause For The Vietnam War1442 Words   |  6 PagesAmong the causes for the Vietnam War are the Western fear of communism, the remnants of nineteenth-century colonialism, and tensions caused by World War Two and the Cold War, but these causes c ould easily have been circumvented and the Vietnam War prevented. As is often the case with wars, one of the most influential factors in the causation of the Vietnam War was fear, especially fear of communism and social upheaval. 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Survey of Privacy and Security Issues †Free Samples to Students

Question: Discuss about the Survey of Privacy and Security Issues. Answer: Introduction The security aspect of any website plays a vital role in every sphere. The data involved in the website as in the database should be kept secured and kept active all the time. Americas job link is a web based portal that is mainly used by people to connect with organization in order to get a job. The company revealed that their system was hacked which actually lead to fault in the code of application (Fennelly, 2016). This report puts lime light on the whole scenario and deals with the aspect that how and why the situation occurred and what could have been the possible solution. The website was formed in order to achieve jobs and help people to get job. The company reported that the hacker was able to hack the website would immediately lead to fault in the application code of the website. The criminal was able to get all the personal information of nearly 4.8 million job seekers which included mainly their full name, birth date and security number related to social. The activity took place in the year 2017. The person who had given all the related information before the attack was eventually lost and they had to again give the information in order get the proper intended result. The activity was uncovered in the ten states that mainly used the Americas job link system. Some of states that were in the list are Arkansas, Delaware, Idaho, Kansas, Oklahoma and Vermont (Fonseca Rosen, 2017). Possible solution to the problem It can be noted that almost all the times it has been seen that majority of the website security breaches are mainly not done in order to get the data and use them for the personal benefit of the hacker, but the main motive behind the attack is that they intent to use the server in order to send emails relay for spam or in order to set up a web server which would be temporary in order to serve files which are of illegal nature (Cutinha et al., 2017) There can be many ways in order to protect the website or in this case possible solution of the event. Keeping all the software up to data and installing all the security patches available in order to keep all the data secured. Validation should always be done both from the servers end as well as from the browsers end. The aspect of password plays a vital role in securing any account. The user should always keep a complex password which cannot be easily detected by any other person. The password should always be stored as encrypted values ; this can be done by implementing a one way hashing function for example SHA. Using this method means with the prospective of the user authenticating users, the user only ever comparing the encrypted values (Dadkhah, Borchardt Lagzian, 2017). Uploading a file in a website, in this case uploading the bio data should be believed to be the most important aspect which can be directly related to website security breach, even if it is merely done to change an individuals avatar. Opening a file or reading a pdf or using any sort of function which can be done in order to check the image size are not at all proof (Patel Pathrabe, 2017). There are many tools which are available that can be used in order to safe guard a website. The tools are as follows Netsparker: This is good for testing SQL injection and XSS. OpenVAS: It is claimed to be the most advanced source which is considered as open software. The main advantage that can be received by this is that it is good for testing known as vulnerability, currently which scans over 25000. On the other hand its set up is difficult as it requires a OpenVAS server which only run on linux system (Ramayah et al., 2016) SecurityHeader.io: A tool which can be used to report quickly which security headers such as CSP and HSTS a domain has correctly configured and enabled. Conclusion The security aspect of any website can be considered as one of the most important aspects. There is usually a huge amount of data which is stored in a database; in case a breach is performed by a hacker on the system it could lead to a big problem even the website could be on harm. The security aspect can be employed in the field which can be directly implemented and taken advantage of. The hacker intends to breach in order to gain benefit for their personal issue but with the implementation of the security features it can be avoided. References Cutinha, S., Rodrigues, S., Sanjay, P., Supreetha, R. (2017). Connectify-A Social Networking Website. Advances in Computing, 7(2), 35-39. Dadkhah, M., Borchardt, G., Lagzian, M. (2017). Do You Ignore Information Security in Your Journal Website?. Science and engineering ethics, 23(4), 1227-1231. Fennelly, L. (2016). Effective physical security. Butterworth-Heinemann. Fonseca, B., Rosen, J. D. (2017). Introduction. In The New US Security Agenda (pp. 1-15). Springer International Publishing. Patel, P. P. R. P. V., Pathrabe, T. (2017). Survey of Privacy and Security Issues in Spice World E-Commerce Website. Ramayah, T., Ling, N. S., Taghizadeh, S. K., Rahman, S. A. (2016). Factors influencing SMEs wQebsite continuance intention in Malaysia. Telematics and Informatics, 33(1), 150-164.

Hospitality Management for Restaurant Services - MyAssignmenthelp

Question: Discuss about theHospitality Management for Restaurant Services. Answer: Critical Evaluation: The survey result showed that the reception and the restaurant services were the best services that were provided by the hotel. 54% and 40% of the respondents said that the reception service was very good and good respectively. For the restaurant, it has been found that 67% people said it was very good and 33% said good; while none of them said that is was not good. This clearly shows that reception and the restaurant are the best part of the hotel. In terms of the room service and housekeeping, mixed reactions have been observed. 18% of the respondents said that the service is good while 31% said it was not good. Therefore, it can be said that room servicing is not up to the mark. The entertainment arrangement is also good and it has been found that 84% of the respondents said that it was very good (Refer to the appendix). None of the respondents said that it was not good. Some of the non respondents could have been asked to respond by providing them certain incentives that would ha ve been lucrative for him and they would have answered the query. With this evaluation, it can be said that the hotel has good facilities in terms of the reception, tours, seaside and entertainment which clearly states that if one visits this place for recreational purpose, it would be the best selection. However, in terms of room servicing and housekeeping, the management needs to make consideration on improving the service of this sector. Suitable Customer Service Strategy: As it has been evident that the two departments, the room servicing and housekeeping and the tours department need to be improved; for the same reason, the hotel needs to undertake certain management strategies. As stated by Torres and Kline (2013), room servicing add value to the hotel and it increases the loyalty of the customers and thus, a hotel should always focus on the room servicing. The strategies that the hotel would undertake are: Making service No. 1 priority: There should be enough staffs available for the service of the guests. It shall be the duty of the staffs to make the guests feel special. Training the staffs: It is very important to train the staffs and teach them the right way to treat customers. It has to be understood that it is only when the customers would find it comfortable enough; they would use the service of the hotel again (Kim and Qu 2014). Improving the tour: Assigning a manager for this department would be the best possible approach towards improving the tour department of the hotel. The manager shall be in the responsibility of taking care of the overall activities. The managers would be involved in the process. The manager shall be responsible for communicating the entire strategy with the staffs of the hotel. References: Kim, M. and Qu, H., 2014. Travelers' behavioral intention toward hotel self-service kiosks usage.International Journal of Contemporary Hospitality Management,26(2), pp.225-245. Torres, E. and Kline, S., 2013. From customer satisfaction to customer delight: Creating a new standard of service for the hotel industry.International Journal of Contemporary Hospitality Management,25(5), pp.642-659.