We hypothesized that the amount of UV radiation exposed has a negative correlation with yeast genetic stability‚ which ultimately determines the number of yeast colonies. In this experiment‚ yeast cells were treated with UV radiation‚ protected by photoprotective agents with different strength (in ascending order: Sunscreen #2‚ #1‚ aluminium foil). After letting it grow for seven days at 37 degrees‚ some grown colonies were counted to determine the effectiveness of photoprotective agents. After comparing
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“Solar Radiation and its Effects on Planet Earth” The Sun emits a tremendous amount of energy‚ in the form of electromagnetic radiation‚ into space. If we could somehow build a gigantic ball around the Sun that completely enclosed it‚ and lined that ball with perfectly efficient photovoltaic solar panels‚ we could capture all of that energy and convert it to electricity and be set in terms of Earth ’s energy needs for a very long time. Lacking such a fanciful sphere‚ most of the Sun ’s energy
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alternative career path would be to become a Radiation Therapists. A radiation therapist is a person who treats cancer and other diseases by administering radiation treatments the patient. I choose this line of work because I enjoy helping and working with people. If my first career path doesn’t work out‚ I still want to continue to work with people. I still want to achieve my goal of making a difference in my community. According to Bls.gov‚ radiation therapist made a median annual wage of $80
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electromagnetic spectrum (EM Spectrum) is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes. The different types of EM radiation that make up the electromagnetic spectrum are microwaves‚ infrared light ‚ ultraviolet light‚ radar‚ visible light‚ radio‚ x-rays and gamma-rays. Radio: Radio waves given out by radio stations. They are also given out stars and gases in space. Microwave: Microwave radiation will cook scrambled eggs‚ but is also used by astronomers
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a dose of radiation that is As Low As Reasonably Achievable. There are two models of radiation that scientists and medical professionals use to achieve safe amounts of radiation on a patient. These are the LNT (linear no-threshold) model and the Hormesis model. The linear no-threshold model was introduced in the 1940’s when the Atomic bomb was set off in Japan. The outcome of that bombing produced very high exposures of radiation to the public. This model claimed that all radiation exposure cases
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Case Study of Management Information System “When Radiation Therapy Kills” (Ethical and Societal Issues in Information System) Background of the case: When the new radiation therapies are raised‚ they’ve promised to cure people from illness. Contemporary radiation therapy offers a good example of society failing to anticipate and control the negative impacts of a technology powerful enough to kill people. Advanced technologies in radiation treatment represent hope and a chance to live and survive
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procedures‚ such as chemoembolization. With the introduction of chemoembolization for the treatment of‚ primarily‚ liver tumors‚ a question emerges; which radiologic modality is better: chemoembolization or traditional radiation therapy? While both chemoembolization and traditional radiation therapy have their benefits and obstacles‚ will chemoembolization be more effective at treating liver cancer? Interventional Radiology (IR) first came about with the introduction of the first angiography preformed
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CELLULAR RESPONSE TO IONIZING RADIATION The efficacy of diagnostic imaging resembles a double-edged sword in the medical industry. A radiographer trained to image a patient correctly must use all knowledge to keep the radiation level at its lowest and safest level to produce the best quality image possible. However‚ the radiation level still has an effect on the patient that can go unseen by the naked eye. Ionizing radiation produced by x-ray‚ gamma rays‚ alpha & beta rays‚ can have an effect
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2012) Exposure to UV radiation is the leading cause of most skin cancers as it induces DNA damage in skin cells. The effects of UV radiation can be classified based on the amount of exposure as acute or chronic. Acute side effects include sunburns and chronic effects can be mutagenic and also increase aging in humans. (Pacholczyk‚ 2015) The effects of UV radiation are significant and finding
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deals with interaction of various types of radiation with matter 1.Atomic Spectroscopy 2.Molecular spectroscopy • Important to understand the interaction between the electromagnetic radiation and the matter (mainly)‚ + interaction of a acoustic waves and beam of particles (ions‚ electrons) with matter. • Wave model failed to account for absorption and emission of EM energy – (sinosoidal wave model (λ ‚ f‚ v‚ Amplitude) • Particle model : EM radiation is viewed as stream of discrete particles
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