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Heart Rate And Blood Pressure State Of Consciousness
1,567 words... s system (which controls the "fight or flight" response) to be activated. Once the sympathetic nervous system is activated, a user enters in a state of euphoria where the person may feel more activated and alert. One of the organs that the vasoconstrictor effects is the heart. When cocaine is taken through intranasal administration, a high heart rate and blood pressure may result. These problems can lead to cardiomyopathy, the condition in which the heart contracts abnormally. "Cardiomyopath...
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Electrical Impulses Mental Phenomena
663 wordsHuman beings have a conception of at least two different kinds of things that exist in the world, mental and physical. Any of us could generate a long list of obvious physical things and clear cases of psychological things. And we assume that both of these types of things, mental phenomena and physical phenomena, are part of our world. But in order to get a more unified, overall picture of the world, we need to consider what the connection is between these two categories. How are the mental and ...
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Black And White Electrical Impulses
2,017 wordsOverview Digital cameras capture images electronically and convert them into digital data that can be stored and manipulated by a computer. Like conventional cameras, digital cameras have a lens, aperture, and shutter, but they dont use film. When light passes through the lens it is focused on a photo-sensitive electronic chip called a charged coupling device (CCD). The CCD converts light impulses into electrical impulses (also called analog signal forms). The signals are fed into a microprocess...
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Coronary Artery Disease Beats Per Minute
2,046 wordsThe Normal Cardiac Cycle During each heartbeat, the two upper chambers (right and left atria) contract, followed by contraction of the two lower pumping chambers (right and left ventricles). This action is coordinated by the hearts electrical system. Normal electrical activation of the heart occurs in an orderly fashion. With each beat, the electrical impulse starts in the sinus (or sino atrial) node (in the right atrium). The impulse spreads through the atria, stimulating the atria to contract....
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Alexander Graham Bell Spanish American War
4,818 wordsIntroduction In ancient times there were many great ideas which began to shape the way man perceived his environment. However, there were few minds who were able to put all of these ideas together. One of these minds belonged to Claudius Ptolemy, or just Ptolemys he is commonly referred to. We know almost nothing of the chronology of Ptolemyslife, and we dont even know his birth or death dates. We do know, though, about his ideas in several fields, which include geography, astronomy, optics, ast...
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