Nitrogen-13: Nitrogen-13 is a radioisotope of nitrogen used in positron emission tomography (PET). It has a half life of a little under ten minutes, so it must be made at the PET site.List of radioactive isotopes by half-life: This is a list of radioactive isotopes ordered by half-life from shortest to longest.Project GABRIEL: Project GABRIEL refers to an investigation by the United States Atomic Energy Commission to gauge the impact of radioactive fallout resulting from nuclear warfare. GABRIEL surmised that the radioactive isotope strontium-90 (Sr-90) presented the greatest hazard to life globally.Diazotroph: Diazotrophs are bacteria and archaea that fix atmospheric nitrogen gas into a more usable form such as ammonia.Indium (111In) capromab pendetideDecay productIsotopic signature: An isotopic signature (also isotopic fingerprint) is a ratio of non-radiogenic 'stable isotopes', stable radiogenic isotopes, or unstable radioactive isotopes of particular elements in an investigated material. The ratios of isotopes in a sample material are measured by isotope ratio mass spectrometry.Selective internal radiation therapy: Selective internal radiation therapy (SIRT) is a form of radiation therapy used in interventional radiology to treat cancer. It is generally for selected patients with unresectable cancers, those that cannot be treated surgically, especially hepatic cell carcinoma or metastasis to the liver.Nitrogen trichlorideCarbon-12: Carbon-12 is the more abundant carbon of the two stable isotopes, amounting to 98.93% of the element carbon; its abundance is due to the triple-alpha process by which it is created in stars.Human impact on the nitrogen cycleRenal functionLiberate Tate: Liberate Tate is an art collective exploring the role of creative intervention in social change. The group aims to "free art from oil" with a primary focus on the art museum Tate ending its corporate sponsorship with BP.Kaufmann–Bucherer–Neumann experiments: The Kaufmann–Bucherer–Neumann experiments measured the dependence of the inertial mass (or momentum) of an object on its velocity. The historical importance of this series of experiments performed by various physicists between 1901 and 1915 is due to the results being used to test the predictions of special relativity.Technetium(IV) chloridePositronium: This article is about the exotic atom. For the hydrogen isotope, see Protium.NitrotyrosineHafnium(IV) silicateIsotope-coded affinity tag: An Isotope-coded affinity tag (ICAT) is an isotopic labeling method used for quantitative proteomics by mass spectrometry that uses chemical labeling reagents. "Rapid quantitative analysis of proteins or protein function in complex mixtures," Rudolf Hans Aebersold et al.TC-1827Central Park Medical UnitTimeline of the Republic of China's nuclear program: The nuclear program of the Republic of China can be represented as a Timeline of the Republic of China's nuclear program.Thermal ionization: Thermal ionization, also known as surface ionization or contact ionization, is a physical process whereby the atoms are desorbed from a hot surface, and in the process are spontaneously ionized.Isotopes of astatine: Astatine (At) has 37 known isotopes, all of which are radioactive; the range of their mass numbers is from 191 to 229. There also exist 23 metastable excited states.Lutetium(III) oxideRhenium pentachlorideSamarium(III) chlorideNitrogen oxide sensor: A nitrogen oxide sensor or NOx sensor is typically a high-temperature device built to detect nitrogen oxides in combustion environments such as an automobile or truck tailpipe or a smokestack.Avid Radiopharmaceuticals: Avid Radiopharmaceuticals is an American company, founded by Dr. Daniel Skovronsky, and based at the University City Science Center research campus in Philadelphia, Pennsylvania.Pii nitrogen regulatory proteinsScintillation proximity assay: Scintillation proximity assay (SPA) is an assay development and biochemical screening that permits the rapid and sensitive measurement of a broad range of biological processes in a homogeneous system. The type of beads that are involved in the SPA are microscopic in size and within the beads itself, there is a scintillant which emits light when it is stimulated.Isotopes of calcium: Calcium (Ca) has 24 isotopes, from 34Ca to 57Ca. There are five stable isotopes (40Ca, 42Ca, 43Ca, 44Ca and 46Ca), plus one isotope (48Ca) with such a long half-life that for all practical purposes it can be considered stable.High-level radioactive waste management: High-level radioactive waste management concerns management and disposal of highly radioactive materials created during production of nuclear power and nuclear weapons. Radioactive waste contains a mixture of short-lived and long-lived nuclides, as well as non-radioactive nuclides.RhodolithAldehyde ferredoxin oxidoreductase: In enzymology, an aldehyde ferredoxin oxidoreductase () is an enzyme that catalyzes the chemical reactionIsotopes of meitnerium: Meitnerium (Mt) is a synthetic element, and thus a standard atomic mass cannot be given. Like all synthetic elements, it has no stable isotopes.Alpha particleAffibody molecule: Affibody molecules are small proteins engineered to bind to a large number of target proteins or peptides with high affinity, imitating monoclonal antibodies, and are therefore a member of the family of antibody mimetics. Affibody molecules are used in biochemical research and are being developed as potential new biopharmaceutical drugs.Sodium pertechnetateCarbon–carbon bond: A carbon–carbon bond is a covalent bond between two carbon atoms. The most common form is the single bond: a bond composed of two electrons, one from each of the two atoms.Full-spectrum photographyAmmonia transporterPeroxynitrous acidOrganic fertilizer: Organic fertilizers are fertilizers derived from animal matter, human excreta or vegetable matter. (e.Cobalt therapy: Cobalt therapy or cobalt-60 therapy is the medical use of gamma rays from the radioisotope cobalt-60 to treat conditions such as cancer. Beginning in the 1950s cobalt-60 was widely used in external beam radiotherapy (teletherapy) machines, which produced a beam of gamma rays which was directed into the patient's body to kill tumor tissue.Nuclear medicine in Pakistan: The history of pursuing nuclear medicine goes back to 1956, when the Pakistan Atomic Energy Commission (PAEC) was established under the executive order of the Prime Minister of Pakistan, Huseyn Shaheed Suhrawardy. The PAEC, the scientific body who is responsible for establishing the nuclear power plants in the country, has sat up a Nuclear Medicines laboratory.Steptoean positive carbon isotope excursion: The Steptoean Positive Carbon Isotope Excursion (SPICE) was a geological event which occurred about 500 million years ago at the end of the Cambrian Period. The SPICE event was a sudden reversal of the anoxia (lack of oxygen) that had steadily spread throughout the oceans during the Cambrian which also affected the atmosphere.Tritium illumination: Tritium illumination is the use of gaseous tritium, a radioactive isotope of hydrogen, to create visible light. Tritium emits electrons through beta decay, and, when they interact with a phosphor material, fluorescent light is created, a process called radioluminescence.Irradiance: In radiometry (measurement of electromagnetic radiation), irradiance is the radiant flux (power) received by a surface per unit area, and spectral irradiance is the irradiance of a surface per unit frequency or wavelength, depending on whether the spectrum is taken as a function of frequency or of wavelength. The SI unit of irradiance is the watt per square metre (), while that of spectral irradiance is the watt per square metre per hertz (W·m−2·Hz−1) or the watt per square metre per metre (W·m−3)—commonly the watt per square metre per nanometre ().FuchsineNostoc communeTetramethylammonium chloride