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Why does the sensor get dirty? Recognising when the sensor is contaminated. The basic internal parts of a Digital Single Lens Reflex Camera The best strategy to ensure a safe and successful sensor clean. The different sensor cleaning methods available today. When to clean the sensor Cleaning the Mirror and Focussing Screen Hygiene After reading through this material you should have a good knowledge of the inside of your DSLR, know when the sensor is contaminated and how to safely clean it using a method of your choice. The guide is quite long, as the intention is to educate as well as to inform. If you wish to skip any section, please use the chapter links above to move quickly around the article. Why does the sensor get dirty? Ten years ago, when most images were shot on film, dust was not much of a problem for photographers. Since a fresh piece of film was used for each exposure, any dust present on the film only affected that single exposure. Of course dust was a big problem for the photo laboratories that developed and printed film. A good lab would go to extraordinary lengths to prevent dust spots spoiling your prints. With today’s digital cameras, every exposure is made on the same imaging sensor. Hence a spot of dust on that sensor will appear on every image. Because most compact digital cameras have a fixed lens and a well-made case, dust does not often find its way inside the camera and onto the imaging sensor. Although its not unusual for an older compact camera to suffer from the odd spot or two of dust. However a digital single lens reflex camera has a removable lens.
Joanne Kathleen Rowling's series of novels about Harry Potter has attracted the attention of numerous literary critics. This paper questions the problems of multiple readings from the viewpoint of feminist literary theory. We can observe considerable differences in the approach of various literary critics to Rowling's series and the opinions of these critics are equally varied. They claim that these are sexist novels, feminist novels, novels for boys, novels in which girls can find role-models and novels in which the author seeks to assert herself through the discourse of fictional text. It is concluded that the novels analyzed can be read from multiple perspectives and that Rowling succeeds in making the reader aware of the problems of male-female relations by positioning the characters on opposite sides with regard to emotional relations, relations towards different people and the family and towards society in general, as well as through convincing and impressionable characterization. Key Words: Harry Potter, feminist literary theory and criticism, multiple readings, relationships between sexes
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Mahalick Memorial is providing scholarships for deserving students. The Center for Scholarship Administration, Inc. (CSA), a non-profit, independent organization is the administrator of the program. QUESTIONS AND ANSWERS ABOUT THE PROGRAM Q: A: Who is eligible for the scholarship? Applicants must be a high senior enrolled at Mahanoy Area High School or Marian Catholic High School. Applicants must reside in the Mahanoy Area School District at the time of graduation. Applicants must demonstrate good moral character. Applicants must have a minimum cumulative GPA of 2.5 through Fall 2010. Applicants must have a financial need. Q: A: When does the program start? The applications will be available December 6. Interested applicants may apply online www.csascholars.org or request a paper application by contacting CSA by mail at 4320 Wade Hampton Boulevard, Suite G, Taylors, SC 29687 by phone at (864) 268-3363; or by email at firstname.lastname@example.org. Q: A: When is the deadline for submission of materials? All materials must be submitted to CSA with a postmark no later than February 7. All materials must be mailed in ONE envelope. If you applied online and received a confirmation of submission you may send just the additional materials required. Q: A: What constitutes a complete application packet? 1. A completed application form, including the signed Terms of Agreement. 2. Official transcript with grades and cumulative GPA posted through Fall 2010. 3. Personal Statement regarding importance of scholarship, college and or career plans 4. Federal Tax Form 1040 (pages one and two only) and W-2 forms for both parents (if applicable) for the latest year these forms were filed. Q: A: What is the value of the scholarship award? The number of recipients and the amount of the scholarships will be based upon the market value of the scholarship fund assets each year as determined by the Trustee. Funds are to be applied to tuition, fees, books, supplies. Q: A: What schools may I attend? You must be a full time student enrolled at any accredited, public or private, four-year College or university of their choice located in the United States. Q: A: What if I am unable to attend consecutive semesters? Extenuating circumstances requiring a student to sit out a semester must be explained in writing to CSA. You will be notified of the final decision. Q: A: How are winners selected? Awards Advisory Committee considers respective ability, educational goals and career ambitions (AND FINANCIAL IF REQUIRED).
Peritonsillar abscess Emily Macassey, Patrick J D Dawes In this issue of the NZMJ, Love et al1 report interesting observations about patterns of epidemiology and microbiology of peritonsillar abscess (PTA) in Canterbury and make comparisons with previous studies performed at Christchurch Hospital. The report contains some valuable observations when it comes to the treatment of the condition. Peritonsillar abscess (also known as quinsy) is a potentially life-threatening infection of the potential space adjacent to the tonsillar capsule in the oropharynx. It can be difficult for doctors unfamiliar with PTA to differentiate it from severe tonsillitis but unilaterality of symptoms and inability to swallow saliva are good indicators. The main differentiating signs seen are trismus, swelling or bulging of the soft palate, medialisation of the tonsil and deviation of the uvula.2 PTA is life-threatening because of both its potential for airway obstruction and spread to the parapharyngeal and retropharyngeal spaces. It is reported that George Washington probably died from quinsy in 1799.3 It is reassuring that 97.3% of isolates are reported as penicillin sensitive. Penicillin remains the first-line antibiotic for all tonsillar infections and this is the sole agent used in many New Zealand hospitals. In other countries resistance rates vary from 10– 50%.4 In a survey of UK consultants, 28% had a preference for penicillin monotherapy, whilst penicillin combined with metronidazole was the choice of 44%.3 Research has shown that even when patients have penicillin resistant organisms, treatment with aspiration and parenteral penicillin still achieves clinical resolution.5 This is in accordance with principles of abscess management where drainage is paramount.
SUMMARY. Tonsillitis was studied in 317 patients over two years. A short course of antibiotics was found to be highly effective in clearing streptococci from the throat, but it was questionable whether the clearance shown represented eradication. It is suggested that the duration of treatment should be on a selective basis, using a ten-day, or short antibiotic course, according to circumstances. Withholding antibiotics altogether is not considered advisable. I could not differentiate between streptococcal and presumed viral tonsillitis on clinical grounds. The resulting possible policies of treatment are discussed. I suggest giving all cases of tonsillitis antibiotics at the time of presentation. Introduction While there is general agreement that penicillin is the antibiotic of choice, the duration of treatment in tonsillitis is more controversial. Traditional teaching advocates a ten-day course to eradicate streptococci and thereby prevent rheumatic fever (Wannamaker et al. 1953; Catanzaro et al, 1954), but the incidence of rheumatic fever is now low and it is questionable whether eradication of the streptococcus in every instance of tonsillitis is still necessary. The Dutch community studies by Valkenburg et al. (1971) tend to support this view, their results indicating that the attack rates of rheumatic fever were no higher among patients not treated with antibiotics. If rheumatic fever prevention should no longer be a major concern in the treatment of tonsillitis, then a ten-day antibiotic course with its problem of compliance (Bergman and Werner, 1963; Charney et al, 1967) would not usually be necessary, and a short course to alleviate immediate infection would probably be adequate. Further, some credence would also be given to the view that antibiotics are not necessary at all, particu¬ larly as over half the incidence of tonsillitis is non-streptococcal.
Tonsillitis is inflammation of tonsils, a common clinical condition often encountered in E.N.T. practice. The management of this condition is often empirical with the choice of antibiotics not based on any culture reports. The increasing incidence of resistance in many organisms is due to β-lactamase production and resistance transfer factors that leads to unsuccessful medical therapy which results in recurrent or chronic forms of tonsillitis. The present study was conducted to identify the prevalent bacterial pathogens and their antibiotic sensitivity that would indicate the optimum line of treatment and prevent the complications of acute tonsillitis and avoids unnecessary surgical treatment. Key words: Acute tonsillitis, clinical study, bacteriological study... Tonsillitis is inflammation of tonsils, a common clinical condition caused by either bacteria or viral infection. It affects significant percentage of population more so in children. The condition can occur occasionally or recur frequently. Acute tonsillitis is characterized by visible white streaks of pus on tonsils and the surface of the tonsils may become bright red colour. The bacterial tonsillitis is caused mainly by βhaemolytic Streptococcus, called strep throat and to lesser extent by Staphylococcus aureus and several other bacteria. The more common symptoms of tonsils are sore throat, red swollen tonsils, pain when swallowing, fever, cough, headache, tiredness, chills, swollen lymph nodes in the neck and pain in the ears or neck and the less common symptoms include nausea, stomach ache, vomiting, furry tongue, bad breath, change in voice and difficulty in opening of mouth. The present study was conducted to identify the prevalent bacterial pathogens and their antibiotics sensitivity that would indicate the optimum line of treatment and prevent the complications of acute tonsillitis and avoids unnecessary surgical treatment.
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