To help compare different orders of magnitude this page lists lengths between 10−10 m and 10−9 m (100 pm and 1 nm). Lengths shorter than 100 pm 100 pm = 1 Ångström 100 pm — covalent radius of sulfur atom 126 pm — covalent radius of ruthenium atom 135 pm — covalent radius of technetium atom 153 pm — covalent radius of silver atom 154 pm — mode length of (C-C) covalent bond 155 pm — covalent radius of zirconium atom < ...

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The diagnostic tests in cardiology are methods of identifying heart conditions associated with healthy vs. unhealthy, pathologic, heart function. Cardiology diagnostic tests and procedures - Bedside. 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 ...

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• 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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Uraninite is a uranium-rich mineral with a composition that is largely UO2 (uranium oxide), but which also contains UO3 and oxides of lead, thorium, and rare earths. It is most commonly known in the variety pitchblende. All uraninite minerals contain a small amount of radium as a radioactive decay product of uranium; it was in pitchblende from the Jáchymov in Czechoslovakia that Marie Curie discovered radium. Uraninite also always contains small amounts of the lead isotopes, Pb-206 and Pb-207, the end pro ...

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• Uraninite - Reference

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A chemical element, often called simply element, is a chemical substance that cannot be divided or changed into other chemical substances by any ordinary chemical technique. The smallest unit of this kind of chemical substances is an atom. An element is a class of substances that contain the same number of protons in all its atoms. Chemical element - Chemistry terminology. Earlier an element or pure element was defined as a substance which "cannot be further broken down ...

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• Chemical element - Chemistry terminology
• Chemical element - Description
• Chemical element - Nomenclature
• Chemical element - Chemical symbols
• Chemical element - Specific chemical elements
• Chemical element - General chemical symbols
• Chemical element - Nonelement symbols

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43 is the natural number following 42 and preceding 44. << 40 41 42 43 44 45 46 47 48 49 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> 43 number - In mathematics. Forty-three is the 14th smallest prime number. The previous is forty-one, with which it comprises a twin prime, the next is forty-seven. 43 is a centered heptagonal number. 43 is the smallest prime that is not a Chen prime.< ...

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• 43 number - In mathematics
• 43 number - In science
• 43 number - In the periodic table
• 43 number - In astronomy
• 43 number - In other fields

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Cholecystitis is inflammation of the gallbladder. It is commonly due to impaction (sticking) of a gallstone within the neck of the gall bladder, leading to inspissation of bile, bile stasis, and infection by gut organisms. Cholecystitis may be a cause of right upper quadrant pain. The pain may actually manifest in the right flank or scapular region at first. In severe cases, the gall bladder can rupture and form an abscess. In severe cases, it may lead to a life-threatening infection of the liver called cholangitis. In other cases, it ...

Including:

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

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The abundance of a chemical element measures how common the element is, or how much of the element there is. Abundance of the chemical elements - Abundance of elements in the Universe. Hydrogen is the most abundant element in the known Universe; helium is second. However, after this, the rank of abundance does not continue to correspond to the atomic number; oxygen has abundance rank 3, but atomic number 8. All others are orders of magnitude less common. Both helium-3 and helium-4 were produced in th ...

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• Abundance of the chemical elements - Abundance of elements in the Universe
• Abundance of the chemical elements - Abundance of elements in the Solar System
• Abundance of the chemical elements - Abundance of elements in Earth
• Abundance of the chemical elements - Abundance of elements in Earth's crust
• Abundance of the chemical elements - Ocean
• Abundance of the chemical elements - Atmosphere
• Abundance of the chemical elements - Organisms
• Abundance of the chemical elements - Human body

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To help compare orders of magnitude of different times this page lists times between 320 000 years and 3 200 000 years (1013 seconds and 1014 seconds) See also times of other orders of magnitude. Shorter times 340,000 years -- half-life of curium-248 379 000 years -- time after the Big Bang until cosmic microwave background radiation began ~600,000 years -- time humans have been able to produce the sounds of spoken languages ~700,000 years -- time since last revers

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42 is the natural number following 41 and followed by 43. << 40 41 42 43 44 45 46 47 48 49 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> 42 number - In mathematics. This composite number's factorization makes it a sphenic number. It is also the third 15-gonal number, a Catalan number, a meandric number, an open meandric number, a Harshad number and a self number. It is bracketed by twin prim ...

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• 42 number - In mathematics
• 42 number - In astronomy
• 42 number - In religion
• 42 number - In pop culture
• 42 number - In other fields

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To help compare different orders of magnitude we list here masses between 60.22 u and 602.2 u (10-25 kg and 10-24 kg, or 100 yoctograms and 1 zeptogram). See also masses of other orders of magnitude. lighter masses 91.224 u (151.481 yg) – atomic mass of zirconium 92.90638 u (154.27465 yg) – atomic mass of niobium [98] u (163 yg) – atomic mass of technetium 101.07 u (167.83 yg) – atomic mass of ruthenium 102.90550 u (170.87858 yg) – atomic mass of ...

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• 1 E-25 kg - External link

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Most of the physical properties of superconductors vary from material to material, such as the heat capacity and the critical temperature at which superconductivity is destroyed. On the other hand, there is a class of properties that are independent of the underlying material. For instance, all superconductors have exactly zero resistivity to low applied currents when there is no magnetic field present. The existence of these "universal" properties imply that superconductivity is a thermodynamic phase, and thus possess certain d ...

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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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Radionuclides are used in two major ways: for their chemical properties and as sources of radiation. Radionuclides of familiar elements such as carbon can serve as tracers because they are chemically very similar to the non-radioactive nuclides, so most chemical, biological, and ecological processes treat them in a near identical way. One can then examine the result with a radiation detector, such as a geiger counter, to determine where the atoms one has provided have ended up. For example, one might culture plants in an environment i ...

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

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There's antimony, arsenic, aluminum, selenium, And hydrogen and oxygen and nitrogen and rhenium, And nickel, neodymium, neptunium, germanium, And iron, americium, ruthenium, uranium, Europium, zirconium, lutetium, vanadium, And lanthanum and osmium and astatine and radium, And gold and protactinium and indium and gallium, And iodine and thorium and thulium and thallium. There's yttrium, ytterbium, actinium, rubidium, And boron, gadolinium, niobium, iridium, And strontium and silicon and silver and samarium, And bismuth, bromine, l ...

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The Elements song, The Elements song - Lyrics, The Elements song - Periodic Table according to Lehrer

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Scientists believe that the Earth formed from the same cloud of matter that formed the Sun. Abundance of the chemical elements - Abundance of elements in Earth's crust. The graphic below illustrates the relative abundance of the chemical elements in Earth's upper continental crust. Many of the elements shown in the graphic are classified into (partially overlapping) categories: rock-forming elements (major elements in green field and minor elements in light green field); ...

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Abundance of the chemical elements, Abundance of the chemical elements - Abundance of elements in the Universe, Abundance of the chemical elements - Abundance of elements in the Solar System, Abundance of the chemical elements - Abundance of elements in Earth, Abundance of the chemical elements - Abundance of elements in Earth's crust, Abundance of the chemical elements - Ocean, Abundance of the chemical elements - Atmosphere, Abundance of the chemical elements - Organisms, Abundance of the chemical elements - Human body

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The radiation emitted from the radionuclide inside the body is usually detected using a gamma camera. Traditionally, gamma-cameras have consisted of a gamma-ray detector, such as a single large sodium iodide NaI(Tl) scintillation crystal, coupled with an imaging sub-system such as an array of photomultiplier tubes and associated electronics. Solid-state gamma-ray detectors are available[1], but are not yet commonplace. Gamma-cameras employ lead collimators to increase the image resolu ...

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Nuclear medicine, Nuclear medicine - Diagnostic tests, Nuclear medicine - Types of studies, Nuclear medicine - Administration of radiopharmaceuticals, Nuclear medicine - Imaging equipment, Nuclear medicine - Analysis, Nuclear medicine - Radiation dose, Nuclear medicine - Reference

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Forty-three is the 14th smallest prime number. The previous is forty-one, with which it comprises a twin prime, the next is forty-seven. 43 is a centered heptagonal number. 43 is the smallest prime that is not a Chen prime. Let a(0) = a(1) = 1, and thenceforth a(n) = (a(0)2 + a(1)2 + ... + a(n-1)2) / (n-1). This sequence continues 1 1 2 3 5 10 28 154... (sequence A003504 in OEIS). Amazingly, a(43) is the first term of this sequence that is not an integer. Negative forty ...

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43 number, 43 number - In mathematics, 43 number - In science, 43 number - In the periodic table, 43 number - In astronomy, 43 number - In other fields

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A polyvalent hard white metal, ruthenium is a member of the platinum group, has four crystal modifications and does not tarnish at normal temperatures, but does oxidize explosively. Ruthenium dissolves in fused alkalis, is not attacked by acids but is attacked by halogens at high temperatures and by hydroxides. Small amounts of ruthenium can increase the hardness of platinum and palladium. The corrosion resistance of titanium is increased mar ...

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Ruthenium, Ruthenium - Notable characteristics, Ruthenium - Applications, Ruthenium - History, Ruthenium - Occurrence, Ruthenium - Compounds, Ruthenium - Isotopes, Ruthenium - Organometallic chemistry, Ruthenium - Precautions

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Initial studies of homogeneous reactors took place toward the close of World War II. It pained chemists to see precisely fabricated solid-fuel elements of heterogeneous reactors eventually dissolved in acids to remove fission products—the "ashes" of a nuclear reaction. Chemical engineers hoped to design liquid-fuel reactors that would dispense with the costly destruction and processing of solid fuel elements. The formation of gas bubbles in liquid fuels and the corrosive attack on materials, howev ...

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Aqueous Homogeneous Reactor, Aqueous Homogeneous Reactor - History, Aqueous Homogeneous Reactor - The ARGUS reactor, Aqueous Homogeneous Reactor - Other Research

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Most of the physical properties of superconductors vary from material to material, such as the heat capacity and the critical temperature at which superconductivity is destroyed. On the other hand, there is a class of properties that are independent of the underlying material. For instance, all superconductors have exactly zero resistivity to low applied currents when there is no magnetic field present. The existence of these "universal" properties imply that superconductivity is a thermodynamic phase, and thus possess certain d ...

See also:

Superconductivity, Superconductivity - Elementary properties of superconductors, Superconductivity - Zero electrical dc 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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The city originates from a Franconian manor that was first mentioned in the 8th century. In the 12th century Wesel came to get into possession of the Duke of Cleves. The city was endowed far-going privileges and became a member of the Hanseatic League during the 15th century. Within the duchy of Cleves, Wesel played an important role as the largest storage and reloading place in the Low Rhine area only to be beaten by the city of Cologne. Wesel - Prussian time. Wesel - World War II. < ...

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Wesel, Wesel - History, Wesel - Prussian time, Wesel - World War II, Wesel - Buildings and places of interest in Wesel, Wesel - People born in Wesel, Wesel - Sister Cities, Wesel - Miscellaneous

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