ChemNotes - What Is Science Envisioning Chemistry in our...

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What Is Science 08/29/07 Envisioning Chemistry in our lives:     Chemical Imaging techniques in Medical Diagnostics:  Picture of Health       (examples of chemistry) E.g. X-Ray, first one was late 1890- by Wilhelm Roentgen of his wife’s hand.  Alzheimer’s Disease PET-SCAN (Positron-Emission Topography), positive electrons MRI (Magnetic Resonance Imaging): o Development: Nuclear Magnetic Resonance--- Felix Bloch (1946),  developed for use in 1950-1970 NMR For use in MA (molecular  analysis)--- NMR to MRI in 1971 for medical use. 1986-present: wide- spread use or MRI. MRI is the name for the process NMR in medicine. Prediction from chemistry lab: spectroscopy experiment Chemical Imaging of Biological (Life) Systems     Biological structures “marked” with fluorescent proteins--- proteins attach to  others of same type and marked with color to create a color map. 3D imaging with X-Ray topography gives info about individual structures in  biological processes. Biological Surfaces (beaches and grains of sand far away and close up  image) o The surface of a protein crystal thought to play a role in multiple  sclerosis created with atomic force microscopy (AFM) Advanced Materials: For Better Living Includes special paints, Teflon, plastics etc.  The Milk We Enjoy Is made possible by a chemical process called pasteurization  developed by Luis Pasture Carbon Monoxide or Syanide--- chemicals that bind with Hemoglobin that  bonds stronger than Oxygen in the lungs and therefore deprives oxygen
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Chapter I, What is Science? Overview:  Objects and properties Measurement systems Standard metric units and prefixes The nature of science The Scientific Method Explanations and inverstigations Models and theories Laws and Principles, Science non-science and pseudoscience Experimentation Application and limitations of science Observation, Hypothesis, Experimentation, Observatoin, Experimentation…  theorize. What is Science?  Science is a logical acquisition of knowledge of natural events through  observation and experimentation and the body of knowledge obtained  thereof. o Note: o 2 Types: Natural Philosophy and Moral Philosophy Natural Philosophy became “natural science” and Moral  Philosophy became “Social Science” Scientific Method:
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Observe, Experiment, Hypothesis (tentative explanation… once supported by  experimentation, a tentative explanation becomes theory), Theorize,  Experiment again… then form a law. Objects and Properties (basement for measurement)
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This note was uploaded on 04/07/2008 for the course BUS 215 taught by Professor Mcquiddy during the Spring '08 term at Chapman University .

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ChemNotes - What Is Science Envisioning Chemistry in our...

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