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Morphine, formerly also called morphia, is a strong opiate that is found naturally in opium, a dark brown resin produced by drying the latex of opium poppies...

Rainforests are forests characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the...

An acronym is an abbreviation of a phrase that usually consists of the initial letter of each word in all caps with no punctuation. For some, initialism...

A filling station (also known as a gas station [US] or petrol station [UK]) is a facility that sells fuel and engine lubricants for motor vehicles. The...

Refrigeration is any of various types of cooling of a space, substance, or system to lower and/or maintain its temperature below the ambient one (while...

Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty...

In biochemistry, in the biological context of organisms' regulation of gene expression and production of gene products, downregulation is the process by...

Peripheral Component Interconnect (PCI) is a local computer bus for attaching hardware devices in a computer and is part of the PCI Local Bus standard...

The Karabiner 98 kurz (German: [kaʁaˈbiːnɐ ˌʔaxtʔʊntˈnɔʏntsɪç ˈkʊɐ̯ts]; "carbine 98 short"), often abbreviated Karabiner 98k, Kar98k or K98k and also sometimes...

Industrial wastewater treatment describes the processes used for treating wastewater that is produced by industries as an undesirable by-product. After...

Distance is a numerical or occasionally qualitative measurement of how far apart objects, points, people, or ideas are. In physics or everyday usage, distance...

Sport psychology was defined by the European Federation of Sport Psychology (FEPSAC) in 1996, as the study of the psychological basis, processes, and effects...

Carbon fibers or carbon fibres (alternatively CF, graphite fiber or graphite fibre) are fibers about 5 to 10 micrometers (0.00020–0.00039 in) in diameter...

The RBMK (Russian: реа́ктор большо́й мо́щности кана́льный, РБМК; reaktor bolshoy moshchnosti kanalnyy, "high-power channel-type reactor") is a class of...

Propiomazine, sold under the brand name Propavan among others, is an antihistamine which is used to treat insomnia and to produce sedation and relieve...

Palmitoylethanolamide (PEA) is an endogenous fatty acid amide, and lipid modulator PEA has been studied in in vitro and in vivo systems using exogenously...

The square foot (pl. square feet; abbreviated sq ft, sf, or ft2; also denoted by '2 and ⏍) is an imperial unit and U.S. customary unit (non-SI, non-metric)...

In cryptography, key stretching techniques are used to make a possibly weak key, typically a password or passphrase, more secure against a brute-force...

In quantum mechanics, perturbation theory is a set of approximation schemes directly related to mathematical perturbation for describing a complicated...

Quercus petraea, commonly known as the sessile oak, Cornish oak, Irish Oak or durmast oak, is a species of oak tree native to most of Europe and into Anatolia...