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15:44
People are constantly exposed to low levels of naturally occurring radiation called background radiation. Background radiation comes from cosmic radiation and from radioactive elements in the air, water, and ground. Cosmic radiation is concentrated at the poles by the earth’s magnetic field and is attenuated by the atmosphere. Thus, exposure is greater for people living at high latitudes, at high altitudes, or both and during airplane flights. Terrestrial sources of external radiation exposure are primarily due to the presence of radioactive elements with half-lives comparable to the age of the earth (~4.5 billion years). In particular, uranium (238U) and thorium (232Th) along with several dozen of their radioactive progeny and a radioactive isotope of potassium (40K) are present in many rocks and minerals. Small quantities of these radionuclides are in the food, water, and air and thus contribute to internal exposure as these radionuclides are invariably incorporated into the body. The majority of the dose from internally incorporated radionuclides is from radioisotopes of carbon (14C) and potassium (40K), and because these and other elements (stable and radioactive forms) are constantly replenished in the body by ingestion and inhalation, there are approximately 7,000 atoms undergoing radioactive decay each second. Internal exposure from the inhalation of radioactive isotopes of the noble gas radon (222Rn and 220Rn), which are also formed from the Uranium (238U) decay series, accounts for the largest portion (73%) of the US population's average per capita naturally occurring radiation dose. Cosmic radiation accounts for 11%, radioactive elements in the body for 9%, and external terrestrial radiation for 7%. In the US, people receive an average effective dose of about 3 millisieverts (mSv)/yr from natural sources (range ~0.5 to 20 mSv/yr). However, in some parts of the world, people receive > 50 mSv/yr. The doses from natural background radiation are far too low
24 Jul 2017
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21:20
Mercury Mercury has no known beneficial role in human metabolism, and its ability to affect the distribution and retention of other heavy metals makes it one of the most dangerous toxic metals (Houston 2011). Mercury toxicity can arise from ingestion of metallic mercury or mercury salts (which are generally poorly bioavailable) or by inhalation of mercury vapor (which is readily absorbed) (ATSDR 2001). The relatively high solubility and stability of certain mercury salts in water enables them to be readily taken up and biotransformed to methylmercury by certain fish; these forms are readily absorbed through the GI tract and are becoming a major source of mercury exposure in humans (Houston 2011). Dimethylmercury, a mercury compound chemically synthesized in the laboratory, can also be absorbed through the skin, and several cases of fatal exposure among laboratory workers have been reported (Nierenberg 1998; Bernhoft 2012). Although humans can excrete small amounts of mercury in urine or feces as well as via exhalation or sweating, they lack an active robust mechanism for mercury excretion, allowing levels to accumulate with chronic exposure (Houston 2011; Sällsten 2000; Houston 2011). Mercury, particularly when inhaled as mercury vapors, can distribute to many organs, but may concentrate in the brain and kidneys (ATSDR 2001). It can also cross the placenta and be found in breast milk (Yang 1997). Mercury exerts its toxic effects by competing with and displacing iron and copper from the active site of enzymes involved in energy production; this induces mitochondrial dysfunction and oxidative damage (Houston 2011). Mercury can also directly accelerate the oxidative destruction of cell membranes and LDL cholesterol particles as well as bind to and inactivate the cellular antioxidants N-acetyl cysteine, alpha-lipoic acid, and glutathione (Houston 2011). Because of its effect on cellular defense and energy generation, mercury can cause widespread toxicity and symptoms
28 Jul 2017
32
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15:44
Radiation exposure may involve Contamination Irradiation Radioactive contamination is the unintended contact with and retention of radioactive material, usually as a dust or liquid. Contamination may be External Internal External contamination is that on skin or clothing, from which some can fall or be rubbed off, contaminating other people and objects. Internal contamination is unintended radioactive material within the body, which it may enter by ingestion, inhalation, or through breaks in the skin. Once in the body, radioactive material may be transported to various sites (eg, bone marrow), where it continues to emit radiation until it is removed or decays. Internal contamination is more difficult to remove. Although internal contamination with any radionuclide is possible, historically, most cases in which contamination posed a significant risk to the patient involved a relatively small number of radionuclides, such as phosphorus-32, cobalt-60, strontium-90, cesium-137, iodine-131, iodine-125, radium-226, uranium-235, uranium-238, plutonium-238, plutonium-239, polonium-210, and americium-241. Irradiation is exposure to radiation but not radioactive material (ie, no contamination is involved). Radiation exposure can occur without the source of radiation (eg, radioactive material, x-ray machine) being in contact with the person. When the source of the radiation is removed or turned off, exposure ends. Irradiation can involve the whole body, which, if the dose is high enough, can result in systemic symptoms and radiation syndromes (see Radiation Exposure and Contamination : Acute radiation syndromes (ARS)), or a small part of the body (eg, from radiation therapy), which can result in local effects. People do not emit radiation (ie, become radioactive) following irradiation.
28 Jul 2017
35
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18:44
Reggae / Rock / Grunge A train wreck and you dont know wht the fuck that sound was but your going to go to it to see what it is!!! INHALE sublime 311 dubcat bob marley hepcat long beach short buss barrington leavy peter tosh the wailers Elan
18 Feb 2007
1018
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1:43
DEALING WITH THE DANGERS OF INHALANT ABUSE "PROTECT YOUR CHILDREN AND LOVED ONES March 19th & 25th is National Inhalants and Poisons Awareness Week. Millions of children are abusing household and commercial products to get high & products you might never even suspect. The practice is known as huffing, bagging, sniffing or dusting. Users intentionally inhale harmful fumes or vapors from everyday household products for a quick and intense high. They are cheap, easy to get and are abused by over 2 million young people age 12-17 each year and that number is on the rise. Experts say parents and kids are in need of education on the subject of inhalant abuse particularly the dangers and warning signs associated with it. Some warning signs of inhalant abuse: Numbness in tongue / mouth Nausea and/or vomiting Redness in the eyes Spots or sores around the mouth For more information and resources visit the National Inhalant Prevention Coalition at www.inhalants****.
28 Nov 2006
3549
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3:54
REDEFINING DIABETES MANAGEMENT: FIRST FDA-APPROVED INHALED INSULIN, EXUBERA® (insulin human [rDNA origin]) Inhalation Powder, REDUCES BARRIERS FOR DIABETES PATIENTS TO ACHIEVE GOOD BLOOD SUGAR LEVEL CONTROL Diabetes is a growing health crisis, affecting nearly 21 million Americans. Most have type 2 diabetes – a progressive disease – and ultimately many will require insulin therapy. Despite the availability of insulin, a proven and effective treatment for diabetes, average blood sugar levels have continued to rise over the last 10 years. Approximately two out of three people with type 2 diabetes have uncontrolled blood sugar levels even if they are currently on treatment. Many patients are reluctant to start or increase insulin treatment because of injections. Some delay insulin use for as long as 10 years. For the first time, there is now an insulin that does not need to be injected. EXUBERA, the first and only FDA-approved inhaled insulin, is now available in pharmacies to help treat adults with type 1 or type 2 diabetes. Taking EXUBERA doesn't require needles.
27 Jan 2007
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0:43
This is Me inhaling Helium from a birthday baloon
18 Apr 2007
987
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2:23
He likes inhalants too , but is he like his life??
10 Oct 2007
991
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1:13
PSA features a pro wresting match between animated inhalers.
7 Mar 2008
205
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3:15
Learn how to make and use an essential oil inhaler. Use a single oil or blend for portable, convenient relief and relaxation. Brought to you by Andrea Butje of the Aromahead Institute of Essential Oil Studies.
15 Jan 2011
1672
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4:21
My friend shows you how to inhale, and Scream Low/High. These are just brief descriptions and example on how to do it. In the Future I will make a video specifically focused on one vocal topic. If any questions or requests feel free to hit me up. I filmed and edited
24 Aug 2008
5981
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2:17
A step-by-step instructional video on how to properly use and maintain a Metered Dose Inhaler device via the Closed Mouth Technique.
10 Jun 2009
529
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2:24
A step-by-step instructional video on how to properly use and maintain a Metered Dose Inhaler device via the Open Mouth Technique.
10 Jun 2009
272
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5:41
Chiesi Modulite® İnhaler nasıl uygulanır? Uygulama cihazının ağızlık koruyucu kapağını çıkarınız. Dikey tutuş sağlamak üzere, işaret ve orta parmağınızın boğumlarını tüpün üzerine, başparmağınızı ise fuşya renkli cihazın alt bölümüne yerleştiriniz. (Gerektiği durumda her iki elinizin işaret ve parmakları ile de bu tutuşu sağlayabilirsiniz. Önemli olan kendinizi nasıl daha rahat hissettiğinizdir.) Ağzınızdan mümkün olduğunca sakin, yavaş ve derin bir nefes veriniz. Fuşya renkli uygulama cihazının ağızlık bölümünü üst ve alt dişlerinizin arasına yerleştiriniz ve dudaklarınızla ağızlığı kavrayınız. Başınızı dik tutunuz ve kendinizi hazır hissettiğinizde; ağzınızdan sakin, yavaş ve derin bir nefes alırken, aynı anda tüpün üzerinde olan işaret parmağınızı/ parmaklarınızı aşağı doğru bastırınız ve nefesinizi akciğerlerinize ulaştırmaya kesintisiz devam ediniz. Birkaç saniye bekleyiniz. (Göğsünüzün yukarı hareketi, nefesinizin akciğerlere gidiyor olduğunun kanıtıdır.) Nefesinizi yavaş yavaş burnunuzdan veriniz.
26 Sep 2009
568
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0:56
*******bit.ly/4f6mWD Salt Inhalers. Demonstrated By Philip Schofield and Reviewed by Dr Chris on their miraculous qualities to completely alleviate the sympoms of asthma and other respiratory cmplaints. As featured on this morning
20 Nov 2009
134
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