Cardiology diagnostic tests and procedures - History. Obtaining a medical history is always the first "test", part of understanding the likelihood of significant disease, as detectable within the current limitations of clinical medicine. Yet heart problems often produce no symptoms until very advanced, and many symptoms, such as palpitations and sensations of extra or missing heart beats correlate poorly with realtive heart health vs disease. Hence, a history alone is rarely sufficient to diagnose a heart condition. See also:

Cardiology diagnostic tests and procedures, Cardiology diagnostic tests and procedures - Bedside, Cardiology diagnostic tests and procedures - History, Cardiology diagnostic tests and procedures - Auscultation, Cardiology diagnostic tests and procedures - Laboratory, Cardiology diagnostic tests and procedures - Blood tests, Cardiology diagnostic tests and procedures - Electrophysiology, Cardiology diagnostic tests and procedures - Electrocardiogram, Cardiology diagnostic tests and procedures - Holter monitor, Cardiology diagnostic tests and procedures - Event monitor, Cardiology diagnostic tests and procedures - Cardiac stress testing, Cardiology diagnostic tests and procedures - Medical imaging, Cardiology diagnostic tests and procedures - Coronary catheterization, Cardiology diagnostic tests and procedures - Echocardiogram, Cardiology diagnostic tests and procedures - Intravascular ultrasound, Cardiology diagnostic tests and procedures - Positron emission tomography, Cardiology diagnostic tests and procedures - Computed axial tomography, Cardiology diagnostic tests and procedures - Magnetic resonance imaging, Cardiology diagnostic tests and procedures - Related topics

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There have been many technological innovations based on superconductivity. Superconductors are used to make the most powerful electromagnets known to man, including those used in MRI machines and the beam-steering magnets used in particle accelerators. Another application is for magnetic separation where weakly magnetic particles are extracted from a background of less or non-magnetic particles (used in a large scale in pigment industries). Superconductors are also used to make SQUIDs (s ...

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Superconductivity, Superconductivity - Elementary properties of superconductors, Superconductivity - Zero electrical resistance, Superconductivity - Superconducting phase transition, Superconductivity - Meissner effect, Superconductivity - Theories of superconductivity, Superconductivity - History of superconductivity, Superconductivity - Technological applications of superconductivity, Superconductivity - Superconductors in science fiction

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Superconductivity has long been a staple of science fiction. One of the first mentions of the phenomenon occurred in Robert A. Heinlein's novel Beyond This Horizon (1942). Notably, the use of a fictional room temperature superconductor was a major plot point in the Ringworld novels by Larry Niven, first published in 1970. Superconductivity is a popular device in science fiction due to the simplicity of the underlying concept - zero electrical resistance - and the rich technological possibilities. For example, superconduc ...

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Superconductivity, Superconductivity - Elementary properties of superconductors, Superconductivity - Zero electrical resistance, Superconductivity - Superconducting phase transition, Superconductivity - Meissner effect, Superconductivity - Theories of superconductivity, Superconductivity - History of superconductivity, Superconductivity - Technological applications of superconductivity, Superconductivity - Superconductors in science fiction

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Naturally occurring radionuclides originate mainly from the interiors of stars. Some, such as uranium, were formed directly in stars, and are still present because their half-lives are so long that they have not yet completely decayed. Radiogenic isotopes, such as carbon-14, are present because they are formed by the decay of longer-lived elements (this is how all the helium currently available was formed: although it is not radioactive, it escapes from the Earth easily, so helium is obtained from underground reservoirs). Artificially produced radionuclides can be produced by nuclear reactors, particle acce ...

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Radionuclide, Radionuclide - Origin, Radionuclide - Uses, Radionuclide - Dangers

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Gamma radiation, for the common man, is basically a ray that changes significantly the living organism. This is a result of the many cartoons and movies, for example Marvel's, in which science and technology play a huge role in the action. The Marvel Comics character, The Incredible Hulk, whose experiences formed the subject of a TV show and a recent movie, was created when scientist Bruce Banner was bombarded by a heavy dose of gamma radiation, which activated his genes that he had inherited from his father, who had injected himself with an ...

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Gamma ray, Gamma ray - Shielding, Gamma ray - Interaction with matter, Gamma ray - Uses, Gamma ray - History, Gamma ray - Culture

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Main article : History of superconductivity Superconductivity was discovered in 1911 by Heike Kamerlingh Onnes, who was studying the resistivity of solid mercury at cryogenic temperatures using the recently-discovered liquid helium as a refrigerant. At the temperature of 4.2 K, he observed that the resistivity abruptly disappeared. For this discovery, he was awarded the Nobel Prize in Physics in 1913. In subsequent decades, superconductivity was found in several other materials. In 1913, lead was found to superconduct at 7 ...

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Superconductivity, Superconductivity - Elementary properties of superconductors, Superconductivity - Zero electrical resistance, Superconductivity - Superconducting phase transition, Superconductivity - Meissner effect, Superconductivity - Theories of superconductivity, Superconductivity - History of superconductivity, Superconductivity - Technological applications of superconductivity, Superconductivity - Superconductors in science fiction

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In a nuclear reactor, the buildup of fission products as reaction poisons in the fuel eventually leads to loss of efficiency, and in some cases to instability. They contribute most of the short and medium term radioactivity of high-level nuclear waste produced from spent reactor fuel. Depending on the quality of the fuel cladding can appear in the primary coolant. In a well designed power reactor running under normal conditions the radioactivity of the coolant is very low, in the BWR reactors the bulk of the activity in the coolant is due to ...

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Fission product, Fission product - Physical process of nuclear fission, Fission product - Mass vs. yield curve, Fission product - FPs in power reactors, Fission product - Fission products listed according to atomic number, Fission product - Krypton, Fission product - Strontium, Fission product - Zirconium, Fission product - Molybdenum, Fission product - Technetium, Fission product - Ruthenium, Fission product - Rhodium, Fission product - Palladium, Fission product - Tellurium-132, Fission product - Iodine, Fission product - Xenon, Fission product - Cesium, Fission product - Barium, Fission product - Lanthanides Lanthanum cerium neodymium and samarium, Fission product - Countermeasures against the worst fission products found in accident fallout, Fission product - Iodine, Fission product - Cesium, Fission product - Strontium, Fission product - Fission products within the back end of the nuclear fuel cycle

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The mixture of radioactive fission products found in the fall out from a nuclear bomb are very different in nature to those found in spent power reactor fuel. This is because the reactor fuel will have had more time for the short lived isotopes to decay. Fission product - Iodine. At least three isotopes of iodine are important. 129I, 131I and 132I A counter measure against the shortlived iodine isotopes (such as 131I), is to take potassium iodide by mouth. ...

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Fission product, Fission product - Physical process of nuclear fission, Fission product - Mass vs. yield curve, Fission product - FPs in power reactors, Fission product - Fission products listed according to atomic number, Fission product - Krypton, Fission product - Strontium, Fission product - Zirconium, Fission product - Molybdenum, Fission product - Technetium, Fission product - Ruthenium, Fission product - Rhodium, Fission product - Palladium, Fission product - Tellurium-132, Fission product - Iodine, Fission product - Xenon, Fission product - Cesium, Fission product - Barium, Fission product - Lanthanides Lanthanum cerium neodymium and samarium, Fission product - Countermeasures against the worst fission products found in accident fallout, Fission product - Iodine, Fission product - Cesium, Fission product - Strontium, Fission product - Fission products within the back end of the nuclear fuel cycle

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Cardiology diagnostic tests and procedures - Electrocardiogram. Electrocardiography (ECG/EKG) monitors electrical activity of the heart, primarily as recorded from the skin surface. A 12 lead recording, 6 for the front plane and 6 for the lower chest crossectional plane, is the most commonly used form. Cardiology diagnostic tests and procedures - Holter monitor. A Holter monitor records a continuous EKG rhythm pattern (rarely a full EKG) for 24 hours or more. Thes ...

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Cardiology diagnostic tests and procedures, Cardiology diagnostic tests and procedures - Bedside, Cardiology diagnostic tests and procedures - History, Cardiology diagnostic tests and procedures - Auscultation, Cardiology diagnostic tests and procedures - Laboratory, Cardiology diagnostic tests and procedures - Blood tests, Cardiology diagnostic tests and procedures - Electrophysiology, Cardiology diagnostic tests and procedures - Electrocardiogram, Cardiology diagnostic tests and procedures - Holter monitor, Cardiology diagnostic tests and procedures - Event monitor, Cardiology diagnostic tests and procedures - Cardiac stress testing, Cardiology diagnostic tests and procedures - Medical imaging, Cardiology diagnostic tests and procedures - Coronary catheterization, Cardiology diagnostic tests and procedures - Echocardiogram, Cardiology diagnostic tests and procedures - Intravascular ultrasound, Cardiology diagnostic tests and procedures - Positron emission tomography, Cardiology diagnostic tests and procedures - Computed axial tomography, Cardiology diagnostic tests and procedures - Magnetic resonance imaging, Cardiology diagnostic tests and procedures - Related topics

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Super-heavy atoms are the transactinide elements beginning with rutherfordium (atomic number 104). They have all been made artificially and currently have no practical purpose because their half-lives do not allow the element to survive longer than a few minutes to just a few milliseconds, thus making the element extremely hard to study and serve no purpose other than research. Super-heavy atoms have all been created during the latter half of the 20th century and are continually being created during the 21st century as technology adva ...

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Transuranium element, Transuranium element - Discovery and naming of transuranium elements, Transuranium element - Now-obsolete claims of discovery, Transuranium element - List of the transuranic elements:, Transuranium element - Super Heavy Atoms

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Although antibiotics will often help reduce the inflammation of the gallbladder, acute cholecystitis is an indication for gallbladder removal (cholecystectomy). This can be accomplished with an open surgery or a laparoscopic procedure. Laparoscopic procedures can have less morbidity and a shorter recovery stay. An open procedure is preferred by many surgeons if the gallbladder is so inflamed that it could fall apart with the manipulations that could be needed with a laparoscopic procedure. A laparoscopic procedure may also be 'converted' to an open procedure during the operation if the surgeon feels that further attempts at lap ...

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Cholecystitis, Cholecystitis - Diagnosis, Cholecystitis - Radiology, Cholecystitis - References, Cholecystitis - Therapy, Cholecystitis - Complications, Cholecystitis - of cholecystitis, Cholecystitis - of cholecystectomy

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