Ionizing radiation

Electromagnetic waves are a type of radiation that is produced from electrons (negatively charged particles) and x-rays is a type of electromagnetic wave. The shorter the wavelength of a wave, the more energy the wave emits. Gamma radiation has the shortest wavelength amongst all the other electromagnetic waves and has the most energy. It cannot be seen or felt and can pass through almost anything. X-rays have slightly longer wavelengths than Gamma rays and has the second most energy emission.…

Specifically, we shall discuss whether the concept of Hormesis is existed. We shall also discuss the two types of Hormesis, inhibition and stimulation. More specifically we shall discuss the role Nuclear Medicine, Radiology and Radiation Therapy play in Hormesis as it relates to radiation. Finally, we shall discuss our thoughts on the Hormesis theory; specifically, if it a feasible concept or simply far-fetched. Hormesis is defined by the National Institute of Health (NIH) as an “Environmental…

The CT scanner Depends upon several steps:- 1-The x-ray tube and detector transverse (scan) the object. 2-The radiation beam passes through the object and is attenuated. The intensity of radiation beam from x- ray tube and transmitted beam both are detected by suitable detectors. 3-The transmitted beam and the references beam are both converted into electric signals. 4-These output current signals are then converted into digital form by analog –to-digital converter. 5-The digital data are…

1. Materials and methods 1.1. Microorganism The P. aeruginosa 15GR is a RL hyperproducer mutant obtained by gamma radiation of P. aeruginosa isolate P6 in our previous study (in press). This isolate was stored in Luria Bertani broth (Lab M, Topley house, England) containing 20% glycerol at -80 °C. 1.2. Culture media The mineral salts medium [9] containing glycerol 2 % v/v as the carbon source (GMSM) was prepared and used in this study. 1.3. Fermentative production of RL 1.3.1. Seed culture…

One example of a gastric emptying study is an operation that is done by nuclear medicine physicians using radioactive chemicals that examines how fast the food leaves the stomach and goes to the small intestine. Gastric emptying studies are used for checking patients who are experiencing signs of slow and, less commonly, rapid emptying of the stomach. Some signs to watch for are low energy levels, nausea, and heartburn. During a gastric emptying study, the patient eats a meal where the food in…

What did cancer look like in the mid 1800’s http://www.cancer.org/acs/groups/cid/documents/webcontent/002048-pdf.pdf In 1838 german pathologist Johannes Muller showed cancer is made up of cells rather than lymph. Muller showed that cancer cells developed from budding elements (blastema) between normal tissues Rudolph Virchow suggested that cells including cancer cells are derived from other cells. He bliebed that cancer spread like liquid in the 1860s german surgeon karl theirch showed that…

How Uranium affects TP53 Do we know how Uranium affects TP53 to affect our bodies? Uranium is a dense radioactive metal, that is used as fuel in nuclear reactors. Uranium has several isotopes, and the most important of these, are radioactive and presented in nature. This radioactive substance affects our bodies in many contrasting ways. Examples are, our organs, DNA, our tissue, bones, and TP53 gene. In this paper, we will focus most on how Uranium affects TP53 to affect our body. The official…

Brain Nuclear Scan Nuclear Brain scanning is a type of nuclear imaging test, which means it uses a radioactive substance and a special camera to create a 3-D pictures. While image tests such as x-rays can show what the structure inside your body looks like, a Nuclear scan produces images that show how the organs work. The reason I choice nuclear brain scanning, do to the fact my step mom has Epilepsy that she has acquired from a brain disorder from damage in the temporal lobe area. She…

which control how skin cells grow and divide. If these genes become affected, they’re no longer able to function properly due to the damage caused by the radiation and may become cancerous as the genes are unable to repair the damage. Melanomas develop in the skins’ pigment cells (Melanocytes), which produce melanin to protect the skin from UV radiation. If left untreated, melanomas will grow very quickly and become life threatening in as little as six weeks because the cancer spreads into vital…

Bianca Gomez Mr. Lewis Honors Chemistry 17 November 2017 Radon-Engineer Introduction: Radon is a colorless/odorless gas that comes from the radioactive decay of Uranium. Radon is commonly found in soil and is usually exposed to human beings through ingestion and inhalation. Most of Radon exposure is seen in many homes that are located in places where the soil beneath it contains a high concentration of it. Radon has been seen more often through sicknesses of people who are exposed to it, for…