Electromagnetic Phenomena
Categorical breakdown of terms falling inder the category of Electromagnetic Phenomena. Sub categories will become more specific in nature to the terms listed for Electromagnetic Phenomena.
Sub-Categories
Terms
Alpha Particles - Positively charged particles composed of two protons and two NEUTRONS, i.e. equivalent to HELIUM nuc...
Background Radiation - Radiation from sources other than the source of interest. It is due to cosmic rays and natural radio...
Beta Particles - High energy POSITRONS or ELECTRONS ejected from a disintegrating atomic nucleus....
Color - The visually perceived property of objects created by absorption or reflection of specific wavelengt...
Cosmic Radiation - High-energy radiation or particles from extraterrestrial space that strike the earth, its atmosphere...
Darkness - The absence of light....
Dose-Response Relationship, Radiation - The relationship between the dose of administered radiation and the response of the organism or tiss...
Electric Capacitance - The ability of a substrate to retain an electrical charge....
Electric Conductivity - The ability of a substrate to allow the passage of ELECTRONS....
Electric Impedance - The resistance to the flow of either alternating or direct electrical current....
Electricity - The physical effects involving the presence of electric charges at rest and in motion....
Electromagnetic Fields - Fields representing the joint interplay of electric and magnetic forces....
Electromagnetic Fields - Fields representing the joint interplay of electric and magnetic forces....
Electromagnetic Phenomena - Characteristics of ELECTRICITY and magnetism such as charged particles and the properties and behavi...
Electrons - Stable elementary particles having the smallest known negative charge, present in all elements; also...
Fluorescence - The property of emitting radiation while being irradiated. The radiation emitted is usually of longe...
Gamma Rays - Penetrating, high-energy electromagnetic radiation emitted from atomic nuclei during NUCLEAR DECAY. ...
Glare - Relatively bright light, or the dazzling sensation of relatively bright light, which produces unplea...
High-Energy Shock Waves - High-amplitude compression waves, across which density, pressure, and particle velocity change drast...
Incandescence - Emission of LIGHT by a substance as its temperature is raised. It is sometimes called hot light in c...
Infrared Rays - That portion of the electromagnetic spectrum usually sensed as heat. Infrared wavelengths are longer...
Light - That portion of the electromagnetic spectrum in the visible, ultraviolet, and infrared range....
Luminescence - Emission of LIGHT when ELECTRONS return to the electronic ground state from an excited state and los...
Microwaves - That portion of the electromagnetic spectrum from the UHF (ultrahigh frequency) radio waves and exte...
Photons - Discrete concentrations of energy, apparently massless elementary particles, that move at the speed ...
Radiation - Emission or propagation of electromagnetic energy (waves/rays), or the waves/rays themselves; a stre...
Radiation Dosage - The amount of radiation energy that is deposited in a unit mass of material, such as tissues of plan...
Radiation Effects - The effects of ionizing and nonionizing radiation upon living organisms, organs and tissues, and the...
Radiation Tolerance - The ability of some cells or tissues to withstand ionizing radiation without serious injury. Toleran...
Radiation, Ionizing - Electromagnetic or corpuscular radiation capable of producing ions, directly or indirectly, in its p...
Radiation, Nonionizing - Electromagnetic radiation which does not produce ions in matter through which it passes. Its wavelen...
Radio Waves - Electromagnetic waves with frequencies between about 3 kilohertz (very low frequency - VLF) and 300,...
Solar Energy - Energy transmitted from the sun in the form of electromagnetic radiation....
Static Electricity - The accumulation of an electric charge on a object...
Sunlight - Irradiation directly from the sun....
Terahertz Radiation - Non-ionizing electromagnetic energy in the frequency range of 100 gigahertz to 10 terahertz which sp...
Ultraviolet Rays - That portion of the electromagnetic spectrum immediately below the visible range and extending into ...
X-Rays - Penetrating electromagnetic radiation emitted when the inner orbital electrons of an atom are excite...
Common Chronic Illnesses
Coronary Disease
An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels.
Diabetes Mellitus, Type 1
A subtype of DIABETES MELLITUS that is characterized by INSULIN deficiency. It is manifested by the sudden onset of severe HYPERGLYCEMIA, rapid progression to DIABETIC KETOACIDOSIS, and DEATH unless treated with insulin. The disease may occur at any age, but is most common in childhood or adolescence.
Diabetes Supplies | Diabetic Groups
Diabetes Mellitus, Type 2
A subclass of DIABETES MELLITUS that is not INSULIN-responsive or dependent (NIDDM). It is characterized initially by INSULIN RESISTANCE and HYPERINSULINEMIA; and eventually by GLUCOSE INTOLERANCE; HYPERGLYCEMIA; and overt diabetes. Type II diabetes mellitus is no longer considered a disease exclusively found in adults. Patients seldom develop KETOSIS but often exhibit OBESITY.
Free Diabetes Supplies
Hypertension
Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.
Mesothelioma
A tumor derived from mesothelial tissue (peritoneum, pleura, pericardium). It appears as broad sheets of cells, with some regions containing spindle-shaped, sarcoma-like cells and other regions showing adenomatous patterns. Pleural mesotheliomas have been linked to exposure to asbestos. (Dorland, 27th ed)
Osteoarthritis
A progressive, degenerative joint disease, the most common form of arthritis, especially in older persons. The disease is thought to result not from the aging process but from biochemical changes and biomechanical stresses affecting articular cartilage. In the foreign literature it is often called osteoarthrosis deformans.