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15:44
Medical diagnostic procedures used to define and diagnose medical conditions are currently the greatest manmade source of ionizing radiation exposure to the general population. However, even these sources are generally quite limited compared to the general background radiation on Earth. The risks and benefits of radiation exposure due to medical imaging and other sources must be clearly defined for clinicians and their patients. This article is a general overview for the medical practitioner, who should understand the fundamentals of medical ionizing radiation and the general associated risks. This article also acquaints the practitioner with relative doses of common radiographic procedures as well as natural background radiation. The use of ionizing radiation in medicine began with the discovery of x-rays by Roentgen in 1895. Ionizing radiation is the portion of the electromagnetic spectrum with sufficient energy to pass through matter and physically dislodge orbital electrons to form ions. These ions, in turn, can produce biological changes when introduced into tissue. Ionizing radiation can exist in 2 forms: as an electromagnetic wave, such as an x-ray or gamma ray, or as a particle, in the form of an alpha or beta particle, neutron, or proton. X-rays are machine-generated, whereas gamma rays are electromagnetic waves that are emitted from the nucleus of an unstable atom. Different forms of ionizing radiation have differing abilities to generate biologic damage. The order of ionization effect of these forms can be found in Table 1 below. A clear understanding of the measurement units of radiation and radioactivity is required to better communicate with colleagues or patients. Different units are used to describe radioactivity by energy (erg), decay activity rate (curie [Ci] or becquerel [Bq]), effect in air (roentgen [R]), ability to be absorbed (radiation-absorbed dose [rad] or gray [Gy]), or biologic effect (roentgen equivalent man [rem] or sievert [Sv]). Se
23 Jun 2017
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1:05
he planning portion of move is the most complicated one. When a person is supposed to carry all his belongings to the new place, he is really worried for the things. If there is a desire to achieve 100% success in a move then a person should plan for the things accordingly and should manage it well too.
26 Jun 2017
27
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41:09
The diagnosis of prostate cancer most commonly involves a combination of three tests: Digital rectal examination DRE As part of a physical examination your doctor inserts a gloved and lubricated finger into your rectum and feels toward the front of your body. The prostate gland is a walnut or larger sized gland immediately in front of the rectum, and beneath your bladder. The back portion of prostate gland can be felt in this manner. Findings on this exam are compared to notes about the patient's prior digital rectal examinations. The exam is usually brief, and most find it uncomfortable due to the pressure used to adequately examine the prostate gland. Findings such as abnormal size, lumps, or nodules, may indicate prostate cancer. The national comprehensive cancer network NCCN notes that a DRE should not be used as a stand-alone test for detection of prostate cancer but should be performed in men with an elevated PSA. The NCCN also notes that DRE may be considered as a baseline test in all patients, as it may help identify high-grade cancers associated with a normal PSA. Prostate specific antigen PSA blood test: The PSA blood test measures the level of a protein found in the blood that is produced by the prostate gland and helps keep semen in liquid form. The PSA test can indicate an increased likelihood of prostate cancer if the PSA is at an increased or elevated level, but it does not provide a definitive diagnosis. Prostate cancer can be found in patients with a low PSA level but this occurs less than 20% of the time. If the PSA level is elevated levels can depend upon your age, on the size of your prostate gland on examination, certain medications you may be taking, or recent sexual activity, further testing may be needed to rule out prostate cancer. PSA measurements are often tracked over time to look for evidence of a change. The amount of time it takes for the PSA level to increase is referred to as PSA velocity. The time it takes for the PSA to doubl
8 Jul 2017
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3:30
You save time on accounting and printed material on the grounds that a hefty portion of basic accounting errands are taken care of consequently making it less demanding to maintain your business. You can undoubtedly create the reports with the data you require, so you generally know where your business stands. You in a split second know whether you’re profiting and whether your business is solid. You spare cash on the grounds that QuickBooks is so reasonable. You can utilize it to run a $5 million or a $25 million business for a couple of hundred bucks. PC bookkeeping programming is really one of the considerable deals in business. Your business can develop with QuickBooks. QuickBooks will help you outline a strategy for success to utilize when attempting to secure an independent company advance or credit extension or to get ready for what’s to come. QuickBooks will make a projected accounting report, profit and misfortune proclamation and explanation of trade streams out the configuration prescribed by the U.S. Private company Administration. You can tweak QuickBooks to work the way you need. QuickBooks is particularly intended to be adaptable and versatile to an extensive variety of private companies. To expand its allure, QuickBooks has as of late included redone bookkeeping bundles for temporary workers, retailers, medicinal services professionals, and non-profit associations.
14 Jul 2017
11
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0:30
Consistently Sony dispatches his exceptional telephones in the market. Sony Xperia XZ Premium is an undeniable most recent cell phone innovation is accessible in expected Cost of Rs. 59,990/ - . Sony Xperia XZ Premium is a lead cell phone with every single premium component. This cell phone is a development in the field cell phone advertise. Sony is the considerable brand and dependably accompanies a portion of the advancement in the electronic market like in sounds devices Beats Most recent Expert and Sony Convenient cam FDR-AX53 propositions are the best items by Sony. Sony creations additionally report his cell phone Sony Xperia L1 and Now an incredible cell phone with some one of a kind elements is likewise declared Sony Xperia XZ Premium. Elements and details of Sony Xperia XZ Premium Sony dependably accompanies a portion of the progressed and interesting components. The elements are contending with Samsung System A5. Sony dependably tries his best to present new innovation and elements in the market.
15 Jul 2017
6
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1:34
The second portion of driving on a usual chair and a table on wheels on road of a sport center Olympic, it is direct in the center of Moscow.
21 Apr 2007
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2:21
Dr. Benzinger from secondopinion**** with health infromation on portion distortion.
24 Jul 2007
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2:23
Portion Distortion? Lose Fat, Stop Confusion, Keep it Simple Weight loss tips, How to eat for fat loss, Fitness and Success Tips
21 Dec 2007
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1:30
*******www.videoinfoguys****/portions Lose weight safely and easily with perfect portions diet plan. Don't change what you eat, change how you eat. Safe and fast weight loss with Perfect Portions.
13 Mar 2009
600
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3:30
10/17 God Is My Portion (From Psalm 73:26) In the encouraging word and video devotional of the day Minister Fannell shares that God is your portion. He is everything that you need and more. FOr other devotionals vist www.ongoodground**** Distributed by Tubemogul.
17 Oct 2008
377
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3:47
*******www.applian****/replay-converter/#mc2097891 How to convert a portion of an audio or video file to iPhone m4r (Replay Converter video tutorial) Learn how to convert audio/video files to iPhone m4r ringtones. Replay Converter is the easiest way to convert video and audio files, especially ones you can download from web sites like YouTube. You simply pick the files to convert, choose an output format, and click a button to start the process. Everything happens automatically. Replay Converter uses top-of-the-line codecs, to ensure the highest quality output. This makes Replay Converter especially good for these tasks: -Create m4r ringtones for Apple iPhone -Burn Video files to DVD Discs. -Convert Video files to FLV, AVI or WMV for editing or playback on other devices. -Rip Video from DVD's -Create iPhone, iPod-friendly m4b, m4a, mp4, m4r Video and Audio files. -Create MP3 files from Videos. -And more! More Replay Converter HowTo videos: *******www.applian****/support-videos.php#RC
18 Jan 2009
2212
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3:25
********www.increaseyourportion****/a... - Increase Your Portion (IYP) is a social networking site, but You get paid for referring others to the network through a 2x8 forced matrix system. You get free video games, chat, blogs and a whole bunch more!!! It costs $25 per month to join but you will make that back very quickly with just a few referrals. Unlike those 5x6 matrices that are near impossible to ever fill up, IYP offers a realistic system its not so big, its easy to fill up, and it makes a realistic income (1270$). So, when you sign in you know what you are going to get - no impossible promises, and an easy to make income stream. IYP's forced matrix is also the first program to pay out $3 per person on tiers 1, 2 and 8. The remaining levels pay out $2 per person which allows over $1,200 a month residual income which can quickly build up through the fact that you can only have 2 people for every level. Your Portion utilizes a Forced 2x8 Matrix, meaning spillover comes much more rapidly than most other matrix programs, and it gives you the opportunity to make a realistic income stream.
23 May 2009
333
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9:03
********www.increaseyourportion****/aff/id.php?uid=caltosy&jxURL=*******www.increaseyourportion****/landing/1/ My name is Caltosy Rogers with Increase Your Portion which is a social network that pays and a great marketing system, check it out!
31 Jul 2009
33
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9:11
********www.increaseyourportion****/aff/id.php?uid=caltosy Click the link above to get started! Increase Your Portion is a social network and marketing system in which you can spend only $1 and make good money with the multi-forced-matrix system!
3 Aug 2009
228
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2:00
The other day I learned a HUGE key to controlling your portions and hence helping to control weight.
5 Oct 2009
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2:31
Rebecca Scritchfield explains Portion Control. Rebecca uses nuts as a healthy snack example. More from Rebecca at www.dietsinreview**** Distributed by Tubemogul.
21 Apr 2010
43
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