infrared light. Infrared absorption spectroscopy is the method which scientists use to determine the structures of molecules with the molecules’ characteristic absorption of infrared radiation. Infrared spectrum is molecular vibrational spectrum. When exposed to infrared radiation‚ sample molecules selectively absorb radiation of specific wavelengths which causes the change of dipole moment of sample molecules. Consequently‚ the vibrational energy levels of sample molecules transfer from ground state to
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References: 1. Campbell‚ N (1999) Biology‚ Benjamin-Cummings Publ. Co.‚ California [http://biology.clc.uc.edu/courses/bio104/photosyn.htm] 2. Davidson‚ S. (2007) Electromagnetic Radiation‚ Maricopia Education‚ New York‚ http://www.nationalelectrical.com/clncmpd.htm [13/03/2010] 3. Eates‚ P. J. (2004) Electromagnetic Spectrum‚ The Share Guide‚ Sydney‚ [http://www.lbl.gov/] 4. Farabee‚ M (2007) Photosynthesis and Light‚ Maricopia
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Chemotherapy is the treatment of disease by the use of chemical substances‚ especially the treatment of cancer by cytotoxic and other drugs. Chemotherapy and radiation do not always fully cure cancer in the body. It separates cells in the body which affects hair‚ nails‚ skin‚ the digestive system‚ and the blood. This procedure makes you very ill and can cause lifelong damages to various parts of the body‚ including your brain‚ liver‚ hearing‚ and reproductive organs. Homeopathic cures are more effective
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antenna can be used for transmission and reception Radiation Patterns Radiation pattern o Graphical representation of radiation properties of an antenna o Depicted as two-dimensional cross section Beam width (or half-power beam width) o Measure of directivity of antenna o Angle within which power radiated is at least half of that in most preferred direction Reception pattern o Receiving antenna’s equivalent to radiation pattern Omnidirectional vs. directional antenna
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wavelengths of light that the spectrophotometer gives off (Meah‚2013). The level of light transmitted defines the amount of light absorbed‚ for instance‚ the lower the light absorbance the higher the amount of light transmitted. Ultraviolet (UV) light is radiation but the wavelength is shorter than visible light. A solution is a mixture of two or more substances. A stock solution is used to make a variety of other solutions which hold different concentrations; this is done via dilutions (Meah‚ 2013). Diluting
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Chapter 1 Key Terms; Name: Connor Newell Date: 8/8/11 Allergist- a physician who specializes in determining the substance to which an individual is allergic and who treats such allergies. Allergy-a condition in which and individual has a low tolerance of such things such as pollen‚ ragweed‚ dogs‚ cats and sometimes specific foods. American Red Cross-a national organization that certifies individuals in first aid and cardiopulmonary resuscitation procedures. It also sponsors other services such
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Everywhere I turn‚ I see someone on a cell phone‚ either talking or texting. Every car next to me in traffic has a GPS on the dashboard‚ including my own. It seems that everyone needs some help from technology on a daily basis. It both surrounds and intrigues us. Technology can be helpful‚ fun‚ and entertaining. Much of technology is created to assist with making projects faster or daily tasks more efficient. However‚ the collaboration of technologies in our lives has a few negative effects and I
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of gravity. In fact‚ light cannot even escape the power of a black hole. If light passes the event horizon there is no return and it is taken into the black hole. Once an object is sucked into a black hole‚ it begins to be bombarded with radiation‚ and crushed at atomic level. The point however when an object is completely gone is not the event horizon‚ but rather is the singularity. The event horizon is one of the layers that surrounds the singularity. Below is a diagram of the different
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X-radiation (which is composed of X-rays‚ hence the name) falls under electromagnetic radiation. X-rays and gamma rays are sometimes confused‚ but they are different‚ as X-rays are emitted by electrons outside the nucleus whilst gamma rays are produced inside the nucleus. X-rays have extremely small
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characteristic curve. sensitometer (optical step wedge) and densitometer are used to measure film’s response to light Response of exposure & How is it manifested The response is the change that takes place‚ after exposure to electromagnetic radiation (light or x-rays)‚ in the photosensitive emulsion on the film The response of the film to exposures is manifested as a degree of blackening produced after chemical processing Witch is quantified by:- • Transparency • Opacity • Optical Density (OD(
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