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2015-01-12T08:04:01Z

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en>Awaterl: /* Probabilistic Turing machines */ Link to probabilistic Turing machine article.

2013-09-13T23:10:24Z

Probabilistic Turing machines: Link to probabilistic Turing machine article.

← Older revision		Revision as of 01:10, 14 September 2013
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	It is ~~very common to have~~ a ~~dental emergency --~~ a ~~fractured tooth~~, ~~an abscess, or severe pain when chewing. Over-~~the~~-counter pain medication is just masking~~ the ~~problem. Seeing an emergency dentist~~ is ~~critical to getting~~ the ~~source~~ of ~~the problem diagnosed and corrected as soon as possible.~~<br><br>~~Here are some common dental emergencies:<br>Toothache: The most common dental emergency~~. ~~This generally means~~ a ~~badly decayed tooth. As the pain affects the tooth's nerve~~, treatment involves gently removing any debris lodged in the cavity being careful not to poke deep as this will cause severe pain if the nerve is touched. Next rinse vigorously with warm water. Then soak a small piece of cotton in oil of cloves and insert it in the cavity. This will give temporary relief until a dentist can be ~~reached.<br><br>At times the pain may have~~ a ~~more obscure location such as decay under an old filling~~. ~~As this can be only corrected by~~ a ~~dentist there are two things you can do to help the pain. Administer a pain pill~~ (~~aspirin~~ or ~~some other analgesic~~) ~~internally or dissolve a tablet in a half glass (4 oz) of warm water holding it in the mouth for several minutes before spitting it out~~. DO NOT PLACE A WHOLE TABLET OR ANY PART OF IT IN THE TOOTH OR AGAINST THE SOFT GUM TISSUE AS IT WILL RESULT IN A NASTY BURN.<br><br>Swollen Jaw: This may be caused by several conditions the most probable being an abscessed tooth. In any case the treatment should be to ~~reduce pain and swelling. An ice pack held on~~ the ~~outside~~ of ~~the jaw~~, ~~(ten minutes on and ten minutes off) will take care of both. If~~ this ~~does not control the pain, an analgesic tablet can be given every four hours~~.~~<br><br>Other Oral Injuries: Broken teeth, cut lips~~, ~~bitten tongue or lips if severe means~~ a ~~trip to~~ a ~~dentist as soon as possible. In the mean time rinse the mouth~~ with ~~warm water and place cold compression the face opposite the injury. If there is a lot of bleeding~~, ~~apply direct pressure to the bleeding area~~. ~~If bleeding does not stop get patient to the emergency room of a hospital as stitches~~ may be necessary.<br><br>~~Prolonged Bleeding Following Extraction: Place a gauze pad or better still a moistened tea bag over the socket and have the patient bite down gently on it~~ for 30 to 45 minutes. The tannic acid in the tea seeps into the tissues and often helps stop the bleeding. If bleeding continues after two hours, call the dentist or take patient to the emergency room of the nearest hospital.<br><br>Broken Jaw: If you suspect the patient's jaw is broken, bring the upper and lower teeth together. Put a necktie, handkerchief or towel under the chin, tying it over the head to immobilize the jaw until you can get the patient to a dentist or the emergency room of a hospital.<br><br>~~Painful Erupting Tooth: In young children teething pain can come from a loose baby tooth or from an erupting permanent tooth.~~ Some ~~relief can be given by crushing a little ice and wrapping it in gauze or a clean piece~~ of ~~cloth~~ and ~~putting it directly on the tooth or gum tissue where it hurts~~. The ~~numbing effect of~~ the ~~cold, along with an appropriate dose~~ of ~~aspirin, usually provides temporary relief~~.~~<br><br>In young adults,~~ an ~~erupting 3rd molar (Wisdom tooth), especially if it is impacted, can cause the jaw~~ to ~~swell and be quite painful. Often the gum around~~ the ~~tooth will show signs of infection~~. ~~Temporary relief can be had by giving aspirin or some other painkiller and by dissolving an aspirin in half a glass~~ of ~~warm water and holding~~ this ~~solution in~~ the ~~mouth over~~ the ~~sore gum. AGAIN DO NOT PLACE A TABLET DIRECTLY OVER THE GUM OR CHEEK OR USE THE ASPIRIN SOLUTION ANY STRONGER THAN RECOMMENDED TO PREVENT BURNING THE TISSUE. The swelling~~ of ~~the jaw can be reduced by using an ice pack on the outside~~ of the ~~face at intervals~~ of ~~ten minutes on and ten minutes off~~.<br><br>~~Should you loved this post~~ and ~~you would like to receive~~ more ~~information concerning~~ [~~http~~:~~//www.youtube.com/watch?v~~=~~90z1mmiwNS8 dentist DC~~] ~~generously visit the page.~~		{{context\|date=June 2013}}'''Linear phase''' is a property of a [[filter (signal processing)\|filter]], where the [[phase response]] of the filter is a [[linear function]] of [[frequency]], excluding the possibility of wraps at <math>\pm\pi</math>. In a [[causal system]], perfect linear phase can be achieved with a [[discrete-time]] [[Finite Impulse Response\|FIR]] filter.

			Since a linear phase (or [[Linear phase#Generalized linear phase\|generalized linear phase]]) filter has constant [[group delay]], all frequency components have equal delay times. That is, there is no distortion due to the time delay of frequencies relative to one another; in many applications, this constant group delay is advantageous. By contrast, a filter with ''non-linear phase'' has a group delay that varies with frequency, resulting in [[phase distortion]].

			A filter with linear phase may be achieved by an FIR filter which is either symmetric or anti-symmetric. A necessary but not sufficient condition is
			<math>\sum_{n =-\infty}^\infty h[n] \cdot \sin(\omega \cdot (n - \alpha) + \beta)=0</math>
			for some <math>\alpha, \beta</math>. <ref>Oppenheim & Schafer third edition, chapter 5</ref>

			Some examples of linear and non-linear phase filters are given below. The plots below represent the [[phase response]] as a function of frequency in Hertz.

			[[Image:Phase Plots.svg]]


			== Generalized linear phase ==
			Systems with generalized linear phase have an additional frequency-independent constant added to the phase. Because of this constant, the phase of the system is not a strictly linear function of frequency, but it retains many of the useful properties of linear phase systems.<ref>Oppenheim & Schafer first edition, chapter 5</ref>

			== Linear phase approximation ==

			Linear phase can be achieved with the help of [[Fir filter\|Finite Impulse Response]] (FIR) filters having a symmetric coefficient sequence.

			Nevertheless, FIR filters require high orders and thus more hardware than [[infinite impulse response\|Infinite Impulse Response]] (IIR) filters.
			IIR filters can approximate a linear phase response with:
			* a [[Bessel filter\|Bessel]] transfer function which has a maximally flat [[group delay]]
			* a maximally flat [[group delay]] approximation function
			* a [[Filter_design#Phase_and_group_delay\|phase equalizer]]

			== See also ==
			*[[Minimum phase]]

			==References==
			{{reflist}}

			[[Category:Digital signal processing]]


			{{signal-processing-stub}}

en>Ripchip Bot: r2.7.1) (Robot: Adding ru:Тест на следующий бит

2012-01-26T05:02:48Z

r2.7.1) (Robot: Adding ru:Тест на следующий бит

New page

It is very common to have a dental emergency -- a fractured tooth, an abscess, or severe pain when chewing. Over-the-counter pain medication is just masking the problem. Seeing an emergency dentist is critical to getting the source of the problem diagnosed and corrected as soon as possible. Here are some common dental emergencies: Toothache: The most common dental emergency. This generally means a badly decayed tooth. As the pain affects the tooth's nerve, treatment involves gently removing any debris lodged in the cavity being careful not to poke deep as this will cause severe pain if the nerve is touched. Next rinse vigorously with warm water. Then soak a small piece of cotton in oil of cloves and insert it in the cavity. This will give temporary relief until a dentist can be reached. At times the pain may have a more obscure location such as decay under an old filling. As this can be only corrected by a dentist there are two things you can do to help the pain. Administer a pain pill (aspirin or some other analgesic) internally or dissolve a tablet in a half glass (4 oz) of warm water holding it in the mouth for several minutes before spitting it out. DO NOT PLACE A WHOLE TABLET OR ANY PART OF IT IN THE TOOTH OR AGAINST THE SOFT GUM TISSUE AS IT WILL RESULT IN A NASTY BURN. Swollen Jaw: This may be caused by several conditions the most probable being an abscessed tooth. In any case the treatment should be to reduce pain and swelling. An ice pack held on the outside of the jaw, (ten minutes on and ten minutes off) will take care of both. If this does not control the pain, an analgesic tablet can be given every four hours. Other Oral Injuries: Broken teeth, cut lips, bitten tongue or lips if severe means a trip to a dentist as soon as possible. In the mean time rinse the mouth with warm water and place cold compression the face opposite the injury. If there is a lot of bleeding, apply direct pressure to the bleeding area. If bleeding does not stop get patient to the emergency room of a hospital as stitches may be necessary. Prolonged Bleeding Following Extraction: Place a gauze pad or better still a moistened tea bag over the socket and have the patient bite down gently on it for 30 to 45 minutes. The tannic acid in the tea seeps into the tissues and often helps stop the bleeding. If bleeding continues after two hours, call the dentist or take patient to the emergency room of the nearest hospital. Broken Jaw: If you suspect the patient's jaw is broken, bring the upper and lower teeth together. Put a necktie, handkerchief or towel under the chin, tying it over the head to immobilize the jaw until you can get the patient to a dentist or the emergency room of a hospital. Painful Erupting Tooth: In young children teething pain can come from a loose baby tooth or from an erupting permanent tooth. Some relief can be given by crushing a little ice and wrapping it in gauze or a clean piece of cloth and putting it directly on the tooth or gum tissue where it hurts. The numbing effect of the cold, along with an appropriate dose of aspirin, usually provides temporary relief. In young adults, an erupting 3rd molar (Wisdom tooth), especially if it is impacted, can cause the jaw to swell and be quite painful. Often the gum around the tooth will show signs of infection. Temporary relief can be had by giving aspirin or some other painkiller and by dissolving an aspirin in half a glass of warm water and holding this solution in the mouth over the sore gum. AGAIN DO NOT PLACE A TABLET DIRECTLY OVER THE GUM OR CHEEK OR USE THE ASPIRIN SOLUTION ANY STRONGER THAN RECOMMENDED TO PREVENT BURNING THE TISSUE. The swelling of the jaw can be reduced by using an ice pack on the outside of the face at intervals of ten minutes on and ten minutes off. Should you loved this post and you would like to receive more information concerning [http://www.youtube.com/watch?v=90z1mmiwNS8 dentist DC] generously visit the page.