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About Infection Definition Infection is the presence of microorganisms causing damage to body tissues, usually in the presence of acute inflammation (pain, swelling, redness, heat,…

Prime and Composite Numbers A prime number is a whole number that only has two factors which are itself and one. A composite number has…

Active Transport Definition Active transport is the movement of ions or molecules across a cell membrane in the direction opposite that of diffusion, that is,…

Aeschynite-(Ce) is a rare earth mineral of cerium, calcium, iron, thorium, titanium, niobium, oxygen, and hydrogen with the formula: (Ce,Ca,Fe,Th)(Ti,Nb)2 (O,OH)6. It is a black…

Alveolar Process Definition Alveolar process is the ridge on the surfaces of the upper and lower jaws containing the tooth sockets. It is also called…

Converting Fractions to Scientific Notation Scientific notation is used to express very large or very small numbers. A number of scientific notation is written as…

Silver Nitrate Definition Silver nitrate is a poisonous, clear, crystalline compound that darkens when exposed to light. It is an inorganic compound with chemical formula…

Concept of Career The term ‘career’ was traditionally associated with paid employment and referred to a single occupation. In today’s world of work, the term…

Periodontitis Definition Periodontitis is a serious gum infection that damages the soft tissue and bone that supports the tooth. The word “periodontitis” literally means “inflammation…

Aerugite is a rare complex nickel arsenate mineral with a variable reported formula: Ni(AsO4)2AsO6. It forms green to deep blue-green trigonal crystals. It has a…

Aerinite (Ca4(Al,Fe,Mg)10Si12O35(OH)12CO3·12H2O) is a bluish-purple inosilicate mineral. It was named after the Greek word for sky blue, due to the mineral’s distinctive color. It crystallizes…

Potassium Channel Definition Potassium channels are designed to allow the flow of potassium ions across the membrane but to block the flow of other ions–in…