Strain may refer to:
A strain is an injury to a muscle in which the muscle fibers tear as a result of overstretching. A strain is also colloquially known as a pulled muscle or torn muscle. The equivalent injury to a ligament is a sprain.
Typical symptoms of a strain include localized stiffness, discoloration and bruising around the strained muscle.
Strains are a result of muscular fiber tears due to over stretching; they can range from mild annoyance to very painful. Although strains are not restricted to athletes and can happen while doing everyday tasks, people who play sports are more at risk of developing a strain.
The first-line treatment for a muscular strain in the acute phase include five steps commonly known as P.R.I.C.E.
In biology, a strain is a low-level taxonomic rank used in three related ways, usually at the infraspecific level (within a species).
A strain is a genetic variant or subtype of a micro-organism (e.g., virus or bacterium or fungus). For example, a "flu strain" is a certain biological form of the influenza or "flu" virus. Compare clade.
The term has no official ranking status in botany; the term refers to the collective descendants produced from a common ancestor that share a uniform morphological or physiological character. A strain is a designated group of offspring that are either descended from a modified plant (produced by conventional breeding or by biotechnological means), or which result from genetic mutation.
As an example, some rice strains are made by inserting new genetic material into a rice plant, all the descendants of the genetically modified rice plant are a strain with a unique genetic code that is passed on to later generations; the strain designation, which is normally a number or a formal name, covers all the plants that descend from the originally modified plant. The rice plants in the strain can be bred to other rice strains or cultivars, and if desirable plants are produced, these are further bred to stabilize the desirable traits; the stabilized plants that can be propagated and "come true" (remain identical to the parent plant) are given a cultivar name and released into production to be used by farmers.
Opiates are analgesic alkaloid compounds found naturally in the opium poppy plant Papaver somniferum. The psychoactive compounds found in the opium plant include morphine, codeine, and thebaine. The term opiate should be differentiated from the broader term opioid, which includes all drugs with opium-like effects, including opiates, semi-synthetic opioids derived from morphine (such as heroin, hydrocodone, hydromorphone, oxycodone, and oxymorphone), and synthetic opioids which are not derived from morphine (such as fentanyl, buprenorphine, and methadone). All opioids, including the opiates, are considered drugs of high abuse potential and are listed under the Controlled Substances Act.
In 2013 between 13 and 20 million people used opiates recreationally (0.3% to 0.4% of the global population between the ages of 15 and 65).
Opiates belong to the large biosynthetic group of benzylisoquinoline alkaloids, and are so named because they are naturally occurring alkaloids found in the opium poppy. The major psychoactive opiates are morphine, codeine, and thebaine. Papaverine, noscapine, and approximately 24 other alkaloids are also present in opium but have little to no effect on the human central nervous system, and as such are not considered to be opiates. Very small quantities of hydrocodone and hydromorphone are detected in assays of opium on rare occasions; it appears to be produced by the plant under circumstances and by processes which are not understood at this time and may include the action of bacteria. Dihydrocodeine, oxymorphol, oxycodone, oxymorphone, metopon and possibly other derivatives of morphine and/or hydromorphone also are found in trace amounts in opium.
Opiate is an EP by American rock band Tool. It was produced and engineered by Sylvia Massy and former Minor Threat bassist Steve Hansgen. Released in 1992, it was the result of some two years of the band playing together after their formation in 1990. "Opiate" preceded Tool's first full-length album, Undertow, by a year. It is named after a quote by Karl Marx: "Religion [...] is the opium of the masses". The EP was certified platinum by the RIAA on April 1, 2005. As of July 7, 2010, Opiate has sold 1,155,000 Copies in the US.
Opiate features six tracks, two of which are live recordings. Some versions of the EP feature a hidden seventh track titled "The Gaping Lotus Experience". The song is hidden at the end of the last track of the EP, "Opiate", and begins approximately 6 minutes and 10 seconds into the song. Vinyl copies of the EP featured a double groove on the second side; one which contained "Cold and Ugly", with the second containing "The Gaping Lotus Experience" and a small period of silence. Both grooves led into "Jerk-Off".
An opiate is any of the narcotic alkaloids found in opium.
Opiate may also refer to: