Tighen (Persian : تيغن) may refer to:
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E-commerce is the activity of electronically buying or selling of products on online services or over the Internet. Electronic commerce draws on technologies such as mobile commerce, electronic funds transfer, supply chain management, Internet marketing, online transaction processing, electronic data interchange (EDI), inventory management systems, and automated data collection systems. E-commerce is in turn driven by the technological advances of the semiconductor industry, and is the largest sector of the electronics industry.
The number e is a mathematical constant that is the base of the natural logarithm: the unique number whose natural logarithm is equal to one. It is approximately equal to 2.71828, and is the limit of (1 + 1/n)n as n approaches infinity, an expression that arises in the study of compound interest. It can also be calculated as the sum of the infinite series
In probability theory, the expected value of a random variable is a key aspect of its probability distribution. The expected value of a discrete random variable is the probability-weighted average of all its possible values. In other words, each possible value the random variable can assume is multiplied by its probability of occurring, and the resulting products are summed to produce the expected value. Intuitively, a random variable's expected value represents the mean of a large number of independent realizations of the random variable. The expected value is also known as the expectation, mathematical expectation, mean, or first moment.
In geography, latitude is a geographic coordinate that specifies the north–south position of a point on the Earth's surface. Latitude is an angle which ranges from 0° at the Equator to 90° at the poles. Lines of constant latitude, or parallels, run east–west as circles parallel to the equator. Latitude is used together with longitude to specify the precise location of features on the surface of the Earth. On its own, the term latitude should be taken to be the geodetic latitude as defined below. Briefly, geodetic latitude at a point is the angle formed by the vector perpendicular to the ellipsoidal surface from that point, and the equatorial plane. Also defined are six auxiliary latitudes which are used in special applications.
The Romance languages are the modern languages that evolved from Vulgar Latin between the third and eighth centuries. They are a subgroup of the Italic languages in the Indo-European language family.
In probability theory and statistics, variance is the expectation of the squared deviation of a random variable from its mean. Informally, it measures how far a set of (random) numbers are spread out from their average value. Variance has a central role in statistics, where some ideas that use it include descriptive statistics, statistical inference, hypothesis testing, goodness of fit, and Monte Carlo sampling. Variance is an important tool in the sciences, where statistical analysis of data is common. The variance is the square of the standard deviation, the second central moment of a distribution, and the covariance of the random variable with itself, and it is often represented by , , or .
Escherichia coli, also known as E. coli, is a Gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms (endotherms). Most E. coli strains are harmless, but some serotypes can cause serious food poisoning in their hosts, and are occasionally responsible for product recalls due to food contamination. The harmless strains are part of the normal microbiota of the gut, and can benefit their hosts by producing vitamin K2, (which helps blood to clot when you have a cut to form a scab) and preventing colonisation of the intestine with pathogenic bacteria, having a symbiotic relationship. E. coli is expelled into the environment within fecal matter. The bacterium grows massively in fresh fecal matter under aerobic conditions for 3 days, but its numbers decline slowly afterwards.
Redox is a type of chemical reaction in which the oxidation states of atoms are changed. Redox reactions are characterized by the transfer of electrons between chemical species, most often with one species undergoing oxidation while another species undergoes reduction. The chemical species from which the electron is stripped is said to have been oxidized, while the chemical species to which the electron is added is said to have been reduced. In other words:
E.T. the Extra-Terrestrial is a 1982 American science fiction film produced and directed by Steven Spielberg, and written by Melissa Mathison. It features special effects by Carlo Rambaldi and Dennis Muren, and stars Dee Wallace, Peter Coyote, and Henry Thomas with supporting roles by Robert MacNaughton, Drew Barrymore, and Pat Welsh. It tells the story of Elliott (Thomas), a boy who befriends an extraterrestrial, dubbed "E.T." (Welsh), who is stranded on Earth. Elliott and his siblings help E.T. return to his home planet, while attempting to keep him hidden from the government.
eBay Inc. is an American multinational e-commerce corporation based in San Jose, California, that facilitates consumer-to-consumer and business-to-consumer sales through its website. eBay was founded by Pierre Omidyar in the autumn of 1995, and became a notable success story of the dot-com bubble. eBay is a multibillion-dollar business with operations in about 30 countries, as of 2011. The company manages the eBay website, an online auction and shopping website in which people and businesses buy and sell a wide variety of goods and services worldwide. The website is free to use for buyers, but sellers are charged fees for listing items after a limited number of free listings, and again when those items are sold.
Eric Lynn Wright, known professionally as Eazy-E, was an American rapper, record producer, and entrepreneur. Dubbed the "Godfather of Gangsta Rap", he gained prominence for his work with N.W.A, where he has been credited for pushing the boundaries of lyrical and visual content in mainstream popular music.
WALL-E is a 2008 American computer-animated science fiction film produced by Pixar Animation Studios for Walt Disney Pictures. It was directed and co-written by Andrew Stanton, produced by Jim Morris, and co-written by Jim Reardon. It stars the voices of Ben Burtt, Elissa Knight, Jeff Garlin, Fred Willard, John Ratzenberger, Kathy Najimy and Sigourney Weaver, and was the overall ninth feature film produced by the company. It follows a solitary trash compactor robot on a future, uninhabitable, deserted Earth, left to clean up garbage. However, he is visited by a probe sent by the starship Axiom, a robot called EVE, with whom he falls in love and pursues across the galaxy.
An electronic cigarette, also known as e-cigarette among other names, is a handheld battery-powered vaporizer that simulates smoking and provides some of the behavioral aspects of smoking, including the hand-to-mouth action of smoking, but without burning tobacco. Using an e-cigarette is known as "vaping" and the user is referred to as a "vaper." Instead of cigarette smoke, the user inhales an aerosol, commonly called vapor. E-cigarettes typically have a heating element that atomizes a liquid solution called e-liquid. E-cigarettes are automatically activated by taking a puff; others turn on manually by pressing a button. Some e-cigarettes look like traditional cigarettes, but they come in many variations. Most versions are reusable, though some are disposable. There are first-generation, second-generation, third-generation, and fourth-generation devices. There are also pod mod devices that use nicotine in the form of a protonated nicotine, rather than free-base nicotine found in earlier generations. E-liquids usually contain propylene glycol, glycerin, nicotine, flavorings, additives, and differing amounts of contaminants. E-liquids are also sold without propylene glycol, nicotine, or flavors.
The Amazon Kindle is a series of e-readers designed and marketed by Amazon. Amazon Kindle devices enable users to browse, buy, download, and read e-books, newspapers, magazines and other digital media via wireless networking to the Kindle Store. The hardware platform, which Amazon subsidiary Lab126 developed, began as a single device in 2007 and now comprises a range of devices, including e-readers with E Ink electronic paper displays and Kindle applications on all major computing platforms. All Kindle devices integrate with Kindle Store content and, as of March 2018, the store had over six million e-books available in the United States.
R.E.M. was an American rock band from Athens, Georgia, formed in 1980 by drummer Bill Berry, guitarist Peter Buck, bassist Mike Mills, and lead vocalist Michael Stipe. Additionally, many liner notes from the band's albums list attorney Bertis Downs and manager Jefferson Holt as non-musical members. One of the first alternative rock bands, R.E.M. was noted for Buck's ringing, arpeggiated guitar style, Stipe's distinctive vocal quality and obscure lyrics, Mills's melodic basslines and backing vocals, and Berry's tight, economical style of drumming. R.E.M. released its first single—"Radio Free Europe"—in 1981 on the independent record label Hib-Tone. The single was followed by the Chronic Town EP in 1982, the band's first release on I.R.S. Records. In 1983, the group released its critically acclaimed debut album, Murmur, and built its reputation over the next few years through subsequent releases, constant touring, and the support of college radio. Following years of underground success, R.E.M. achieved a mainstream hit in 1987 with the single "The One I Love". The group signed to Warner Bros. Records in 1988, and began to espouse political and environmental concerns while playing large arenas worldwide.
The Planck constant, or Planck's constant, denoted , is a physical constant that is the quantum of electromagnetic action, which relates the energy carried by a photon to its frequency. A photon's energy is equal to its frequency multiplied by the Planck constant. The Planck constant is of fundamental importance in quantum mechanics, and in metrology it is the basis for the definition of the kilogram.
An electronic book, also known as an e-book or eBook, is a book publication made available in digital form, consisting of text, images, or both, readable on the flat-panel display of computers or other electronic devices. Although sometimes defined as "an electronic version of a printed book", some e-books exist without a printed equivalent. E-books can be read on dedicated e-reader devices, but also on any computer device that features a controllable viewing screen, including desktop computers, laptops, tablets and smartphones.
Marvel's Agents of S.H.I.E.L.D., or simply Agents of S.H.I.E.L.D., is an American television series created for ABC by Joss Whedon, Jed Whedon, and Maurissa Tancharoen, based on the Marvel Comics organization S.H.I.E.L.D., a peacekeeping and spy agency in a world of superheroes. It is set in the Marvel Cinematic Universe (MCU) and acknowledges the continuity of the franchise's films and other television series. The series is produced by ABC Studios, Marvel Television, and Mutant Enemy Productions, with Jed Whedon, Tancharoen, and Jeffrey Bell serving as showrunners.
Tighen-e Olya is a village in Meydavud Rural District, Meydavud District, Bagh-e Malek County, Khuzestan Province, Iran. At the 2006 census, its population was 563, in 110 families.