The AIDS Quilt: Another Dimension :: Free AIDS Essays

The AIDS Quilt: Another Dimension "Jones originally envisioned the AIDS quilt as a message that would call upon the conscience of the nation." (Sturken 186) "The AIDS quilt raises the question of the purpose of mourning. For whom do we mourn when we mourn? The foregrounding of the needs of the living and the creation of a community through the quilt point to mourning not simply as a process for remembering the dead and marking the meaning and value of their lives but also an attempt to create something out of that loss." (Sturken 199) Although the AIDS quilt is thought of by most to be a mourning device, there are in fact panels in the quilt that actually oppose the idea of mourning. In this section of the quilt, one out of the eight sections clearly stands out. It is one that reads: "Terry Sutton; He hated this quilt†¦and so do we." This panel, surrounded by the seven more traditional panels shows how although, on a broad level, the quilt is thought of as a non-activist mourning attempt, there are definite aspects of activism that show through despite discourses popularly associated with the quilt. The other panels pictured here typify the finds of panels that are made for the victims of AIDS. "In memory of†¦" and "we will remember†¦" are some of the more common inclusions in the panels. Terry Sutton’s panel is incredibly significant because juxtaposed against the other panels it shows an opposite reaction to the quilt. It illustrates Sutton’s hatred of what other victims and families think is an amazing coping device. More often than not, the families and friends who decide to make panels for AIDS victims think it is a wonderful idea. Although the creators of the Sutton panel are certainly in the minority, creating a panel of this nature makes an intense impact. The "ACT UP’ t-shirt that is included in Sutton’s panel is most likely a symbol of his involvement with the well-known activist group, ACT UP. The letters stand for AIDS Coalition to Unleash Power. They define their organization as follows: "ACT UP is a diverse non-partisan group of individuals united in anger and committed to direct action to end the AIDS crisis. We advise and inform. We demonstrate. We are not silent." Because ACT UP is a well-known activist group, the fact that Terry Sutton’s panel associates him with the group shows the audience his feelings toward the idea of making a quilt as a strategy to fight AIDS.

Common risks, threats, and vulnerabilities Essay

1. What are some common hazards. menaces. and exposures normally found in the LAN-to-WAN Domain that must be mitigated through a superimposed security scheme? A superimposed security scheme will embrace Rouge protocols such as Bit excavation and P2P. Unauthorized web scanning and examining. and unauthorised entree to the web. 2. What is an Access Control List ( ACL ) and how is it utile in a superimposed security scheme? An ACL is a Control list which will let or deny traffic or devices based on specifications defined in the ACL. This ACL by and large is applied and configured on Firewalls. It is utile in a superimposed security attack because from an External point of view it become the first line of defence when hosts attempt to link to the web. 3. What is a Bastion Host? Provide an illustration of when a Bastion Host should be used and how. A â€Å"Bastion Host† is a host that is minimally configured package firewall incorporating merely necessary software/services. These are besides referred to as bare metal or â€Å"lite† and is managed to be overly secure through a minimalist attack. All traffic coming is directed to the Bastion or â€Å"screened host† . Outbound traffic is non sent through it. The most common menace to the Bastion Host is to the operating system that is non hardened with extra security applications. 4. Supply at least two illustrations of how the enclave demand to put a firewall at the margin can be accomplished. a. Puting a firewall between two routers and another firewall before a DMZ would be the best demand pick to utilize 5. What is the difference between a traditional IP Stateful Firewall and a Deep Packet Inspection Firewall? a. IP Stateful firewall review takes topographic point in bed 4. when traffic efforts to track the firewall a requested a beginning port and a finish port brace become portion of the session leting the beginning to have information. Stateful review firewalls solve the exposure of allowing all the high numbered ports by making a tabular array incorporating the outbound connexions and their associated high numbered port ( s ) . b. Firewalls utilizing deep package review provides sweetenings to Stateful firewalls’ Stateful firewall is still susceptible to assail even if the firewall is deployed and working as it should be. By adding application-o riented logic into the hardware. basically uniting IDS into the firewall traffic. Deep Packet Inspection uses an Attack Object Database to hive away protocol anomalousnesss and onslaught traffic by grouping them by protocol and security degree. 6. How would you supervise for unauthorised direction entree efforts to sensitive systems? Acl’s and audit logs can be leveraged to corroborate which station is trying to do the unauthorised connexion. 7. Describe Group ID ( Vulid ) : V-3057 in the Network IDS/IPS Implementation Guide provided by DISA? A direction waiter is a centralised device that receives information from the detectors or agents 8. What is the significance of VLAN 1 traffic within a Cisco Catalyst LAN Switch? Describe the exposures associated if it traverses across unneeded bole. VLAN1 traffic will incorporate the STP or crossing tree traffic. CDP traffic. and Dynamic trunking traffic to call a few. If unneeded traffic traverses the bole it could do the switch instability doing it to travel down or go inoperable. 9. At what logging degree should the syslog service be configured on a Cisco Router. Switch. or Firewall device? Syslogs traps should be configured at degrees 0-6. Loging Level 2 10. Describe how you would implement a superimposed. security scheme within the LAN-to-WAN Domain to back up authorised remote user entree while denying entree to unauthorised users at the Internet ingress/egress point. To implement a superimposed security scheme for distant user entree. we would get down with an application based login. such as a VPN -SSL hallmark so pair it with LDAP on a radius or Tacacs+ service. LDAP is bound to Active directory which will leverage Role based entree controls to look into group permissions. 11. As defined in the Network Infrastructure Technology Overview. Version 8. Let go of 3. describe the 3 beds that can be found in the DISA Enclave Perimeter layered security solution for Internet ingress/egress connexions ( i. e. . DMZ or Component Flow ) . 3 types of beds found in the Enclave Perimeter Component Flow include the Network layer security. Application layer security and security of the existent applications themselves. 12. Which device in the Enclave Protection Mechanism Component Flow helps extenuate hazard from users go againsting acceptable usage and unwanted web sites and URL links? The Web Content Filter 13. True or False. The Enclave Protection Mechanism includes both an internal IDS and external IDS when linking a closed web substructure to the public Internet. True. it is required to hold external IDS every bit good as internal IDS. Requirements include holding a firewall and IDS in between thecyberspace confronting router and the internal. â€Å"premise† . and router. 14. True or False. Procuring the enclave merely requires perimeter security and firewalls. False. procuring the enclave includes a superimposed firewall attack both on the interior and outside of the web. Sensitive informations can be secured from other sections of the internal web ( internal ) every bit good as Internet links ( external ) . 1 5. What is the primary aim of this STIG as is relates to web substructures for DoD webs? STIG. or Security Technical Implementation Guide. is an intended usher to diminish exposures and potency of losing sensitive informations. The usher focuses on web security. giving security considerations for the enforced web. The STIG besides covers the degree of hazards and the associated acceptable degrees to said hazards.

“Country Lovers” by Nadine Gordimer and “Veronica” by Adewale Maja Pearce Essay

Explore the ways in which relationships are shaped and influenced by traditional cultural expectations in the short stories you have studied. Relationships – platonic and intimate – are sometimes built from cultural expectations; but to what extent are people willing to go to uphold those traditions? I will discuss two short stories â€Å"Country Lovers† by Nadine Gordimer and â€Å"Veronica† by Adewale Maja Pearce, in which both focus on close relationships which are condemned from the start due to strict and uncompromising cultural expectations. Cultural influences are portrayed strongly by the non-British writers; one is set in an unnamed African village, and the other Apartheid South Africa. Both stories tragically show the destructive effect on relationships, when a tenacious fixation with tradition causes them to be obeyed beyond the point of humaneness, and everything else – including love – is disregarded. In â€Å"Country Lovers† the protagonists Paulus (heir to wealthy farming business) and Thebedi (a black farm worker) form an inter-racial relationship in the period of Apartheid rule in South Africa. During Apartheid the divide between blacks and whites was immense. Skin colour determined every aspect of social life. Whilst the affluent whites had their own well-equipped facilities, living in large houses and having well-paid jobs, blacks had to manage with a much lower standard of life. â€Å"Apartheid laws prohibited most social contact between races† (Microsoft Encarta 2006) and inter-racial sex and marriage were strongly opposed by law making it virtually impossible for a blossoming relationship such as Paulus’ and Thebedi’s to progress. They stood at two different sides of the track, whilst Paulus was son of a rich farmer, Thebedi worked on his farm. The contrast between them is great; and so their economic and social differences would be deeply frowned upon. An instance of the contrast, is the scene after Paulus and Thebedi met at the riverbed it says â€Å"and each returned home with the dark – she to her mother’s hut, he to the farmhouse†. A hut in comparison to a house proves the extent of Apartheid and the blacks living conditions. Njabulo, also a slave labourer would have lived here, and he had feelings for Thebedi. Njabulo’s relationship with Thebedi is also dictated by the expectations of a black man in that time, and also his limitations because of it. For example, Paulus returned from school, and brought Thebedi gifts, because he could afford to, although â€Å"Njabulo said he wished he could have bought her a belt and earrings† (line 35). He couldn’t display his love for her, because he didn’t have the means. When Njabulo made arrangements to marry her, he couldn’t offer her parents the customary cow that should have been given in place of Thebedi. This also shows that the customs of the blacks could not be taken under consideration whilst segregation that was going on. Also, when the â€Å"very light† (line 114) baby was being born it simply states â€Å"Njabulo made no complaint†. The preceding sentences had been very long and descriptive with many clauses, but this contrasting short simple one gives it importance and could show that he didn’t care, but could also show that he couldn’t do anything about it and so just accepted it. Despite the fact that it had been proven that Thebedi had had an intercourse with a white man, Njabulo maybe couldn’t ask her about it because he was a second-class citizen and couldn’t do anything. Also, maybe he felt uncomfortable to question her in regards to the baby, because it wasn’t uncommon for white men to rape black women in those times. Cultural expectations forced Njabulo to keep quiet, and so it impacted negatively upon their relationship. There was no trust or compassion between them as he had â€Å"no complaint† when Thebedi had another man’s child. Despite Thebedi’s marriage, the love between Paulus and Thebedi seemed very pure. In line 1 of the story it sets the scene for what the whole story is based upon – â€Å"The farm children play together when they are small; but once the white children go away to school they soon don’t play together any more, even in the holidays†. It immediately drags us into the harshness of living under Apartheid. The entire tone of the narrator is cool and unemotional, perhaps to show the thoughts and feelings of the time. Most white people didn’t really care about the inequality during the Apartheid system, and so had no compassion towards the blacks or to what they were going through. The unemotional tone of the story could also reflect the harshness of the people that were for apartheid or unsympathetic towards the experiences of black people, as the writer Nadine Gordimer was a strong activist in the anti-apartheid movement. The opening line shows how there is no discrimination when the children are young, but as they get older they discover the divide, and so blacks begin to call whites â€Å"missus and baasie† and blacks drop further and further behind in schooling. The story uses country specific words to show that it is not set in England such as â€Å"koppies† – small hill in South Africa. The story sharply contrasts the everyday relationships between whites and blacks as they get older to say â€Å"The trouble was Paulus Esendyck did not seem to realise that Thebedi was now simply one of the crowd of farm children down at the kraal†. He goes against the norm and continues to entertain their relationship, rather than just stop his feelings for her. The language used here such as â€Å"the trouble† shows that it was a problem that Paulus could not just forget Thebedi. Even when he grew up and out of childhood and experienced the things of adulthood, it did not discourage his love for her. Although it was expected of Paulus to like these white girls as it suggests in the story â€Å"the sight of their dazzling bellies and thighs in the sunlight had never made him feel what he felt now†, â€Å"The head girl of the ‘sister’ school was said to have a crush on him he didn’t particularly like her† he had stronger feelings for Th ebedi. In the story, Paulus and Thebedi both go on a walk but unaware of each other but then meet whilst on the walk. This could symbolise that they each want to follow their own paths, but it leads back to one another, â€Å"they had not arranged this, it was an urge each followed independently†. They then go into deep conversation, and during this scene the writer uses lots of descriptive language and imagery to depict their surroundings, such as, â€Å"twisted and tugged at the roots of white stinkwood and Cape willow trees that loped out of the eroded earth around them† and â€Å"old, and eaten trees held in place by vigorous ones, wild asparagus brushing up between the trunks, and here and there prickly-pear cactus sunken-skinned and bristly†. This technique may have been used prolong Paulus and Thebedi’s scene of happiness and contentment with each other – â€Å"she laughed a lot†¦sharing her amusement with the cool shady earth†. Another view is that nature is the only thing around them, it is not discriminatory and doesn’t judge them allowing them to be happy. The turning point in the story is when Paulus and Thebedi have intercourse and it is a blissful time, it says â€Å"they were not afraid of one another†¦this time it was so lovely, so lovely he was surprised†. Although, due to the segregation of the time inter-racial relationships were forbidden (as they were illegal) and so their meetings had to be secret, for being found out would have incurred harsh punishments and being socially shunned. Paulus and Thebedi hide their love from others, specifically by making excuses for Thebedi’s gift â€Å"she told her father the missus had given these (gilt hoop earrings) as a reward for some work she had done†, and by sneaking in and out of the farmhouse â€Å"she had to get away before the house servants, who knew her, came in at dawn†. They both lead double lives. Paulus leaves for veterinary school and Thebedi marries Njabulo – the lives they â€Å"should† be leading if they stuck to the cultural expectations. Once the baby is born everything changes. The writer constantly refers to childhood, during the key scene when Paulus searches for Thebedi and their baby, â€Å"He drank a glass of fresh, still-warm milk in the childhood familiarity of his mother’s kitchen† and also â€Å"For the first time since he was a boy he came right in the kraal†. Children are usually associated with innocence and naivety, and so maybe this was used to contrast with the act of murder he will commit, or maybe to remind the readers of the relationship he had with Thebedi when he was younger. In lines 132-134, the long sentences used increase the suspense and tension for the reader, as they are eager to find out what happens next, whilst the writer rambles on about non-essential information. There is a change in Paulus as he no longer enters into long conversations with Thebedi; his language is short and clipped as he says â€Å"I want to see. Show me†. After Thebedi shows him his child, she uses an anecdote which corresponds to the situation, â€Å"the gang of children had trodden down a crop in their games or transgressed in some other way†¦and he the white one among them must intercede with the farmer†. This shows that the baby was the product of some â€Å"transgression† and the responsibility befell on him, Paulus to put it right. You can see that he felt some sorrow or regret as it says â€Å"he struggled for a moment with a grimace of tears, anger and self-pity†. The relationship between Paulus and Thebedi had been destroyed because of the cultural expectations, as it says â€Å"she could not put her hand to him†. Thebedi could not even console her young lover, as she had no idea how he would react, maybe in anger he could hurt her, and he was confused â€Å"I don’t know†¦ I feel like killing myself†. This was now no longer an intimate relationship although they shared a close moment, a chance to reconcile their love Paulus walked out, because the traditions had made it impossible for them to try and rekindle their affection for one another – â€Å"For a moment there was the feeling between them that used to come when they were alone down at the riverbed† Others opinions and views of Paulus are that the prospect of being prosecuted outweighed his love for Thebedi and his child. He had to reassure that she had never been near the farm house, and willing her to take it away and finally did the only thing he could to make sure he was not found out. The last line summarises the whole story, even though they continued a relationship from childhood it was doomed from the beginning due to the pressures and harshness of living in a segregated society, â€Å"It was a thing of our childhood, we don’t see each other any more. â€Å" Adewale Maja-Pearce depicts the tragic story ‘Veronica’ in which two members of a rural African village born and raised together, begin to lead very different lives on the ground of hampering cultural expectations. The narrator Okeke recollects his experiences in the village, and his platonic relationship with a fatalistic childhood friend Veronica. Set in the middle of the last century, views of the roles of men and women were rigid and unyielding. The story shows how African women of the time were subjected to constant pressure and mounting responsibilities which in turn leads to fatal consequences. In Afrcian society, men were traditional â€Å"breadwinners† and it was a woman’s role to do childrearing and house work. Veronica automatically adopted the responsibilities of her entire family as ‘since she was the eldest child†¦bringing up the other children had fallen on her’. The adjective â€Å"fallen† does not show the responsibility in a good light, as it suggests that a heavy burden has been dropped onto her. It also describes her family situation as she had to take on tasks stereotypically associated with men- such as â€Å"chopping firewood†, as well as taking on maternal roles such as catering for her siblings. Her father abuses her â€Å"listening to her scream†, and is described as a â€Å"brute†, and her mother described as â€Å"weak†. Maja-Pearce may have used the characters as allegory for the political views of the African country. Veronica is a symbol of the abused and mistreated citizens whilst her father symbolises the government and their indifference and apathy towards the citizens deprivation, and her mother could symbolise th e â€Å"weak† bystanders that can’t do anything due to their lack of means. This view also ties in with the fact that historically during this period a civil war would soon be in progress, and also that Maja-Pearce had written several stories that challenge the principles of African society. The relationship between Veronica and Okeke is told solely from Okeke’s point of view as he gives a background, until he talks of his leaving the village. The writer could have done this to show that Veronica’s situation was probably much worse than Okeke knew about, and so the reader would imagine terrible things would happen to her whilst Okeke heard â€Å"screams in the night†, and so empathise with her more. This technique could be seen as building tension and anticipation for when they meet, or to show that this crucial dialogue is a very important part of the story. A turning point in the story when Okeke and Veronica’s friendship is ended by Okeke’s plans to leave his home village and make a life for himself in the city, whilst Veronica refuses to abandon her family. The parting conversation shows just how much cultural tradition has been impressed on Veronica. When Okeke suggests that she leave the village, she replies â€Å"Me!†. This could be vewed as mock indignance, because she feels that Okeke is telling her to forget her set role in society, or it could be seen as genuine surprise at him suggesting that she should give up everything near to her. Okeke then asks for her reasons for staying and she says ‘I can’t just leave my family’.

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 % .

Memorandum of Agreement

MEMORANDUM OF AGREEMENT This Memorandum of Agreement (herein referred to as â€Å"Agreement†) is made and entered into the City of Cabanatuan, Philippines by and between: Land Bank of the Philippines â€Å"Land Bank of the Philippines† with office address at 3/F Land Bank Building, Gabaldon St. , Cabanatuan City, Represented by its Department Manager II, Nueva Ecija Lending Center, Mr. Eduardo N. Reyes, Jr. , herein after referred to as Land Bank of the Philippines. -and- WESLEYAN UNIVERSITY – PHILIPPINES â€Å"WESLEYAN UNIVERSITY – PHILIPPINES†, Mabini Extension, Cabanatuan City, represented by Dean, College of Business and Accountancy, DR.MARIA VICTORIA M. ALVAREZ herein after referred to as WESLEYAN UNIVERSITY – PHILIPPINES. WHEREAS, Land Bank of the Philippines in its concern to enhance the training and development of more and better professionals, has teamed up with WESLEYAN UNIVERSITY – PHILIPPINES for an On-The-Job Training Prog ram (â€Å"Program†) to provide training and support to the students of WESLEYAN UNIVERSITY – PHILIPPINES, College of Business and Accountancy on the current trends and latest developments in the industry, and, to expose them to actual industry situations, thereby enhancing their formal schooling.NOW, therefore, for and in consideration of the foregoing premises, Land Bank of the Philippines and WESLEYAN UNIVERSITY – PHILIPPINES hereby agree on and stipulate the following: MR. EDUARDO N. REYES, JR. DM II – Department Manager/Head, NELC A. Land Bank of the Philippines shall: 1. Undertake the selection process of the recommended students in adherence to Land Bank of the Philippines policies and guidelines in the section for its purpose; 2.Provide the venue3 and assign personnel to take charge as well as supervise on-the-job training of students; 3. Provide WESLEYAN UNIVERSITY – PHILIPPINES students information, training, and support; 4. Provide stude nts exposure to actual office environment; 5. Accomplish the evaluation forms required by WESLEYAN UNIVERSITY – PHILIPPINES in connection with to the on-the-job training of their students; 6. Issue certificate of completion to students who successfully finished their training under this program; and 7.Designate an employee who will coordinate with WESLEYAN UNIVERSITY – PHILIPPINES the various activities under this program. DR. MARIA VICTORIA M. ALVAREZ Dean, College of Business and Accountancy B. WESLEYAN UNIVERSITY – PHILIPPINES shall: 1. Recommend students who will undergo on-the-job training under this program for final selection,/acceptance by Land Bank of the Philippines; 2. Designate a Representative who will coordinate with Land Bank of the Philippines on the various activities under this program; and 3.Together with the students, faculty and parents concerned renounce and waive any claim against Land Bank of the Philippines for any injury or loss that th e trainees may suffer, personal or pecuniary, in the performance of their duties and functions while under the training not attributable to the negligence or willful act of any of the personnel of Land Bank of the Philippines. The waivers of the concerned parties shall be submitted to Land Bank of the Philippines prior to the commencement of the training, which forms part of this agreement.C. Under this program, the following terms and conditions are likewise included: 1. It is expressly understood that there will be no employer-employee relationship between Land Bank of the Philippines and the trainees of WESLEYAN UNIVERSITY – PHILIPPINES; 2. The trainees will be personally for any and all liabilities for damage to property or injury to third persons, which may be occasioned by their international or negligent acts while in the course of their training; 3. WESLEYAN UNIVERSITY –PHILIPPINES shall see to it that the trainees complete the agreed scope of work within the a greed duration of the program; 4. It is expressly understood by WESLEYAN UNIVERSITY – PHILIPPINES, and the trainees that all the information on technology, manufacturing process, process standards, quality assurance methodologies, quality standards, production capabilities, raw material processing, finance, and all other related documents, manuals, and operational or technical matters that Land Bank of the Philippines shall make available to them shall be used solely for this program.All of these matters are classified as confidential in nature and proprietary to Land Bank of the Philippines. WESLEYAN UNIVERSITY – PHILIPPINES and trainees hereby undertake to prevent disclosure or transfer of such information, consciously or unconsciously, to any party outside of institution without the knowledge and written consent of institution. 5. It is expressly understood that Land Bank of the Philippines will only accept OJTs on a case-to-case basis according to vacancy.D. LITIGA TION AND OTHER EXPENSES In case of breach of any confidential information obtained during the training period relative to the task assigned by Land Bank of the Philippines, WESLEYAN UNIVERSITY – PHILIPPINES agrees to pay an additional sum equivalent of twenty five percent (25%) for Attorney’s Fees, plus costs and other fees and incidental expenses of litigation excluding possible monetary damages that may be incurred by reason thereof. E. DURATIONThis agreement shall hold for the duration of the 20122013 School Year of WESLEYAN UNIVERSITY – PHILIPPINES, and is automatically renewable every year, provided that Land Bank of the Philippines and WESLEYAN UNIVERSITY – PHILIPPINES reserve their respective rights to withdraw their participation in the agreement upon written notice. IN WITNESS WHEREOF, the parties hereto have signed these presents on this ____ day of 2013, in Cabanatuan City, Philippines. FOR: Land Bank of the PhilippinesMR. EDUARDO N. REYES, JR. DM II – Department Manager/Head, NELC| WESLEYAN UNIVERSITY – PHILIPPINESDR. MARIA VICTORIA M. ALVAREZDean, College of Business and Accountancy| SIGNED IN THE PRESENCE OF:| _________________________________| _________________________________| Republic of the Philippines) City of Cabanatuan) S. S. A C K N O W L E D G E M E N T On this ___________ day of 2013, personally appeared before me, a Notary Public in and for the City of Cabanatuan, the following persons: NAMEVALID I. D. DATE/PALCE Mr. Eduardo N. Reyes, Jr. Dr. Maria Victoria M. AlvarezSSS ID # ll known to me to be the same persons who executed the foregoing document, consisting of three (3) pages including this page and acknowledgement that the same is an act of their free and voluntary will and deed. IN WITNESS THEREOF, I hereunto sign this document and affix my seal of office on this date and place aforementioned. MR. EDUARDO N. REYES, JR. DM II – Department Manager/Head, NELC DR. MARIA VICTORIA M. ALVAR EZ Dean, College of Business and Accountancy Doc. No. __________ Page No. __________ Book No. __________ Series of 2010

Wk9 (22) Essay Example | Topics and Well Written Essays - 750 words

Wk9 (22) - Essay Example Lois has probably been raised with the idea of marianismo which would mean that she was taught to obey her husband, listen to his rules, be obedient and timid (Paniagua, p. 6). The strength of this approach would be that the therapist could help Lois understand the behaviors that she is exhibiting that trigger issues with her husband. If the husband will come to therapy, the therapist can also help him develop a different way of working with Lois and her mother. Using a Genogram may help her understand each persons place within the family. Another strength is that she has come to understand her own behavior so she may be motivated to work through this process. It would also probably work best if it is a brief therapy rather than something that lasts a long time. Limitations of this therapy may be that it concentrates on behavior rather than on getting to the bottom of what is going on within the family. It may be a good idea to combine it with other models. The attitude of her husban d may cause the therapy to be a weakness because to help this couple, both adults will have to work together. Another limitation is that family therapy does not look at the individual and how they are functioning within the unit (Corey, 2009, p. 440). Couples and family therapy focuses on the family and how they are functioning together. The main objective is to focus on the observable behavior within the family unit (Corey, 2001, p. 247). Families are able to train themselves to monitor reinforcements that come about because of the change in behavior that they create. It also suggests that members of a family actually influence each other by their behavior. Corey suggests that when one family member is acting out in some way, it creates a cognitive, behavioral or emotional reaction in the other members of the family (Corey, 2001, p. 248). When using cognitive behavior therapy in this

The Tarvydas Integrative Decision-Making Model of Ethical Behavior Case Study

The Tarvydas Integrative Decision-Making Model of Ethical Behavior - Case Study Example The paper considers the steps of the model and offer a basis for evaluating the officer’s actions.The first instance involves the dilemma of either pursuing the suspect or not. Awareness of the situation identifies a residential area and potential risk of accidents during pursuit, possibility that the suspect is armed, busy vicinity because of existence of a college in the neighborhood. A review of these factors and consideration of codes of ethical practice and utilitarian and rule ethics identifies the interest of the residents, people in the college environment as well as the officer’s safety. The suspect’s intention was not yet known but defiance indicates potential threat to the officers and other people in the environment. A pursuit of containing the suspect was necessary, though consultation with pursuit supervisor was required. Selecting appropriate pursuit strategy, planning, and execution of pursuit would then follow. The second instance involved the su spect running through an intersection, disregarding a stop sign and almost hitting another vehicle and the ethical decision is whether to continue pursuit or to stop. Awareness and sensitivity of the environment shows the suspect’s risk to the immediate society because he could cause accidents by hitting vehicles and people. His state of mind is not ascertained and he could be a threat to other people even while outside the car. While pursuing the suspect would be dangerous, the officers’ care and effectiveness in containing the suspect could minimize these risks