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Vulnerability assessment (computing)-Assessment types-Host assessment A host assessment looks for system-level vulnerabilities such as insecure file permissions, application level bugs, backdoor and Trojan horse installations. It requires specialized tools for the operating system and software packages being used, in a... | milkshake721/2.1M-wiki-STEM |
Vulnerability assessment (computing)-Assessment types-Network assessment In a network assessment one assess the network for known vulnerabilities. It locates all systems on a network, determines what network services are in use, and then analyzes those services for potential vulnerabilities. This process does not requi... | milkshake721/2.1M-wiki-STEM |
Vulnerability assessment (computing)-Vulnerability assessment vs penetration testing-Vulnerability assessment and penetration testing are two different testing methods. They are differentiated on the basis of certain specific parameters. | milkshake721/2.1M-wiki-STEM |
Record locator-Record locator-In airline reservation systems, a record locator is an alphanumeric or alpha code used to identify and access a specific record on an airline’s reservation system. An airline’s reservation system automatically generates a unique record locator whenever a customer makes a reservation or boo... | milkshake721/2.1M-wiki-STEM |
Record locator-Format-Record locators are created by each computer reservation system (CRS) and are specific to that CRS. They are typically 6 alphanumeric characters in length, though reservation systems using record locators of 7 or 8 characters exist. Record locators are unique within a given CRS at a specific point... | milkshake721/2.1M-wiki-STEM |
Record locator-Use-When a reservation is made, a passenger name record (PNR) is created in the computer reservation system (CRS) used by the person making the booking, and the CRS will automatically generate a record locator for the PNR. If the only flight(s) are operated by the airline on which the booking is being ma... | milkshake721/2.1M-wiki-STEM |
Record locator-Use-In recent years many airlines have stopped running their own reservation systems and have become clients of global distribution systems that provide hosting services. Where this occurs a single PNR (with just one record locator) may be created in the hosting system containing details of all the fligh... | milkshake721/2.1M-wiki-STEM |
Record locator-Use-Airline systems pass record locators between themselves as part of the confirmation process. Should a record locator fail to be passed between two systems the PNR can still be retrieved using flight number/date and name, or the ticket number. | milkshake721/2.1M-wiki-STEM |
Record locator-Example record locators-Example record locators are RMT33W, KZVGX5, IIRCYC.
In the past, the Reservec 2 system had eight character record locators in the form xxnnnnxx where x was a letter and n a decimal digit. Some CPARS (Compact Programmed Airlines Reservations System) systems used five character loca... | milkshake721/2.1M-wiki-STEM |
Ecological model of competition-Ecological model of competition-The ecological model of competition is a reassessment of the nature of competition in the economy. Traditional economics models the economy on the principles of physics (force, equilibrium, inertia, momentum, and linear relationships). This can be seen in ... | milkshake721/2.1M-wiki-STEM |
Ecological model of competition-Ecological model of competition-According to the ecological model, it is more appropriate to model the economy on biology (growth, change, death, evolution, survival of the fittest, complex inter-relationships, non-linear relationships). Businesses operate in a complex environment with i... | milkshake721/2.1M-wiki-STEM |
Rehearsal (educational psychology)-Rehearsal (educational psychology)-Rehearsal in educational psychology refers to the "cognitive process in which information is repeated over and over as a possible way of learning and remembering it". There are two types of memory rehearsal. The first type is called maintenance rehe... | milkshake721/2.1M-wiki-STEM |
Rehearsal (educational psychology)-Rehearsal (educational psychology)-Another type of rehearsal is elaborative rehearsal. This entails connecting new material learned, with already existing long term memories. In this type of rehearsal repetitive tactics are not successful. A strategy such as engaging the brain of the ... | milkshake721/2.1M-wiki-STEM |
Rehearsal (educational psychology)-Case study-In the study of "The Effects of Elaboration and Rehearsal on Long-Term Retention of Shape Names by Kindergarteners", the two promising instructional paradigms, elaboration and overt rehearsal were put to test. Elaboration strategies include paraphrasing or summarizing the m... | milkshake721/2.1M-wiki-STEM |
Scenic design-Scenic design-Scenic design (also known as scenography, stage design, or set design) is the creation of theatrical scenery. Scenic designers create sets and scenery that aim to support the overall artistic goals of the production. There has been some consideration that scenic design is also production des... | milkshake721/2.1M-wiki-STEM |
Scenic design-Scenic designer-The scenic designer works with the director and other designers to establish an overall visual concept for the production and design the stage environment. They are responsible for developing a complete set of design drawings that include the following: basic ground plan showing all statio... | milkshake721/2.1M-wiki-STEM |
Scenic design-Responsibility-The scenic designer is responsible for collaborating with the theatre director and other members of the creative team to create an environment for the production. Scenic designers are responsible for creating scale models of the scenery, renderings, paint elevations and scale construction d... | milkshake721/2.1M-wiki-STEM |
Scenic design-Training-In Europe and Australia, scenic designers take a more holistic approach to theatrical design and will often be responsible not only for scenic design but costume, lighting and sound and are referred to as theatre designers or scenographers or production designers. | milkshake721/2.1M-wiki-STEM |
Scenic design-Notable set designers-Notable scenic designers, past and present, include: Adolphe Appia, Boris Aronson, Alexandre Benois, Alison Chitty, Antony McDonald, Barry Kay, Caspar Neher, Cyro Del Nero, Aleksandra Ekster, David Gallo, Edward Gordon Craig, Es Devlin, Ezio Frigerio, Christopher Gibbs, Franco Zeffir... | milkshake721/2.1M-wiki-STEM |
1,5-Bis(diphenylphosphino)pentane-1,5-Bis(diphenylphosphino)pentane-1,5-Bis(diphenylphosphino)pentane is an organophosphorus compound with the formula C29H30P2. It can be prepared by reacting 1,5-dibromopentane with lithium diphenylphosphide, or diphenylphosphine in presence of caesium hydroxide. It reacts with copper(... | milkshake721/2.1M-wiki-STEM |
Guard goose-Guard goose-The guard goose is a domestic goose that is used as a guard animal both on farms and in other situations. | milkshake721/2.1M-wiki-STEM |
Guard goose-Goose behavior-Geese are considered to have excellent eyesight and to be "watchful and inquisitive", with strong territorial instincts. Goose attacks on humans are commonly reported. One case in 2001 set a legal precedent, resulting in a workers' compensation payout of over $17,000 for an injured delivery p... | milkshake721/2.1M-wiki-STEM |
Guard goose-History of use-Guard geese have been used throughout history, and in modern times. In ancient Rome, geese are credited by the historian Livy for giving the alarm when Gauls invaded (see Battle of the Allia). Geese were subsequently revered in the supplicia canum annual sacrifice, and the Romans later founde... | milkshake721/2.1M-wiki-STEM |
Guard goose-History of use-On modern farms, geese are said to be good deterrents to predators of other domestic fowl, and against snakes. A handbook on industrial security recommends them for protecting warehouses and other isolated physical assets. They are reported to have been used to guard United States Air Defense... | milkshake721/2.1M-wiki-STEM |
Guard goose-Breeds-Some sources list the African goose, Roman goose (Tufted Roman), Pomeranian goose (Saddleback Pomeranian), and Chinese goose as the best breeds for guard duty. Chinese geese are said to be loud, and African geese both loud and large. | milkshake721/2.1M-wiki-STEM |
Human Media Lab-Human Media Lab-The Human Media Lab (HML) is a research laboratory in Human-Computer Interaction at Queen's University's School of Computing in Kingston, Ontario. Its goals are to advance user interface design by creating and empirically evaluating disruptive new user interface technologies, and educate... | milkshake721/2.1M-wiki-STEM |
Human Media Lab-Human Media Lab-The laboratory is known for its pioneering work on flexible display interaction and paper computers, with systems such as PaperWindows (2004), PaperPhone (2010) and PaperTab (2012). HML is also known for its invention of ubiquitous eye input, such as Samsung's Smart Pause and Smart Scrol... | milkshake721/2.1M-wiki-STEM |
Human Media Lab-Research-In 2003, researchers at the Human Media Lab helped shape the paradigm Attentive User Interfaces, demonstrating how groups of computers could use human social cues for considerate notification. Amongst HML's early inventions was the eye contact sensor, first demonstrated to the public on ABC Goo... | milkshake721/2.1M-wiki-STEM |
Human Media Lab-Research-Current research at the Human Media Lab focuses on the development of Organic User Interfaces: user interfaces with a non-flat display. In 2004, researchers at the HML built the first bendable paper computer, PaperWindows, which premiered at CHI 2005. It featured multiple flexible, hires, colou... | milkshake721/2.1M-wiki-STEM |
Human Media Lab-Research-In 2010, the Human Media Lab, with Arizona State University, developed the world's first functional flexible smartphone, PaperPhone. It pioneered bend interactions and was first shown to the public at ACM CHI 2011 in Vancouver. In 2012, the Human Media Lab introduced the world's first pseudo-ho... | milkshake721/2.1M-wiki-STEM |
Human Media Lab-Location and Facilities-The Human Media Lab is located in Jackson Hall on Queen's University campus in Kingston, Ontario. The facilities were designed by Karim Rashid. | milkshake721/2.1M-wiki-STEM |
Oil of catechumens-Oil of catechumens-The Oil of Catechumens, also known as the Oil of Exorcism, is the oil used in some traditional Christian churches during baptism; it is believed to strengthen the one being baptized to turn away from evil, temptation and sin. | milkshake721/2.1M-wiki-STEM |
Oil of catechumens-Oil of catechumens-The Oil of Exorcism was mentioned in the ancient Christian Apostolic Tradition as being "used before baptisms to put to flight any contagions that might obstruct the impending baptismal graces." The Egyptian Church Order teaches that it is blessed during the Easter Vigil, the first... | milkshake721/2.1M-wiki-STEM |
Oil of catechumens-Oil of catechumens-The Oil of Catechumens is intended to help strengthen the person about to be baptized, and prepare them for the struggle (ascesis) of the Christian life, the way a wrestler in ancient Greece and Rome was anointed before a wrestling match. | milkshake721/2.1M-wiki-STEM |
Oil of catechumens-Eastern Orthodoxy-In the Eastern Orthodox Church, the oil of catechumens is blessed by the priest during the baptismal rite. After the consecration of the baptismal water, a vessel of pure olive oil is brought to the priest by the deacon. The priest breathes on the oil three times and blesses it thri... | milkshake721/2.1M-wiki-STEM |
Oil of catechumens-Eastern Orthodoxy-O Master, Lord God of our fathers, Who didst send unto them that were in the ark of Noah the dove, having in its beak a twig of olive, the token of reconciliation and of salvation from the flood the foreshadowing of the mystery of grace; and didst provide the fruit of the olive for ... | milkshake721/2.1M-wiki-STEM |
Oil of catechumens-Eastern Orthodoxy-This anointing before baptism should not be confused with chrismation, which is a separate Sacred Mystery (Sacrament), though it is usually performed immediately after Baptism. | milkshake721/2.1M-wiki-STEM |
Oil of catechumens-Roman Catholicism-In the Roman Catholic Church, the Oil of Catechumens is specially blessed by a bishop or a priest along with Chrism and oil of the sick at the Mass of Chrism which takes place on Holy Thursday.
During the baptismal rite, the priest or deacon says the following words as he anoints wi... | milkshake721/2.1M-wiki-STEM |
Whamola-Whamola-The Whamola is a bass instrument used in funk-jazz styles of music. The name is a portmanteau of whammy bar and viola. | milkshake721/2.1M-wiki-STEM |
Whamola-Whamola-The Whamola is a direct descendant of the washtub bass, an American folk instrument popular with skiffle and jug bands, and features a single string which is manipulated via a pulley-and-lever system. The pulley mechanism is mounted in place of the tuning pegs at the top of a double-bass-style neck, whi... | milkshake721/2.1M-wiki-STEM |
Whamola-Whamola-Whamolas are rare, and are usually made by musicians for personal use, as opposed to professional luthiers, though the instrument has gained mass exposure and growing popularity in recent years due to its being played by contemporary bassists like Les Claypool. A song prominently featuring the instrumen... | milkshake721/2.1M-wiki-STEM |
Knee of a curve-Knee of a curve-In mathematics, a knee of a curve (or elbow of a curve) is a point where the curve visibly bends, specifically from high slope to low slope (flat or close to flat), or in the other direction. This is particularly used in optimization, where a knee point is the optimum point for some deci... | milkshake721/2.1M-wiki-STEM |
Knee of a curve-Knee of a curve-In heuristic use, the term may be used informally, and a knee point identified visually, but in more formal use an explicit objective function is used, and depends on the particular optimization problem. A knee may also be defined purely geometrically, in terms of the curvature or the se... | milkshake721/2.1M-wiki-STEM |
Knee of a curve-Definitions-The knee of a curve can be defined as a vertex of the graph. This corresponds with the graphical intuition (it is where the curvature has a maximum), but depends on the choice of scale.
The term "knee" as applied to curves dates at least to the 1910s, and is found more commonly by the 1940s,... | milkshake721/2.1M-wiki-STEM |
Knee of a curve-Criticism-Graphical notions of a "knee" of a curve, based on curvature, are criticized due to their dependence on the coordinate scale: different choices of scale result in different points being the "knee". This criticism dates at least to the 1940s, being found in Worthing & Geffner (1943, Preface), w... | milkshake721/2.1M-wiki-STEM |
Knee of a curve-Applications-Elbow method Maximum power point tracking | milkshake721/2.1M-wiki-STEM |
DHRS4-DHRS4-Dehydrogenase/reductase SDR family member 4 is an enzyme that in humans is encoded by the DHRS4 gene. | milkshake721/2.1M-wiki-STEM |
Oxidative folding-Oxidative folding-Oxidative protein folding is a process that is responsible for the formation of disulfide bonds between cysteine residues in proteins. The driving force behind this process is a redox reaction, in which electrons pass between several proteins and finally to a terminal electron accept... | milkshake721/2.1M-wiki-STEM |
Oxidative folding-In prokaryotes-In prokaryotes, the mechanism of oxidative folding is best studied in Gram-negative bacteria. This process is catalysed by protein machinery residing in the periplasmic space of bacteria. The formation of disulfide bonds in a protein is made possible by two related pathways: an oxidativ... | milkshake721/2.1M-wiki-STEM |
Oxidative folding-Oxidative pathway-The oxidative pathway relies, just like the isomerization pathway, on a protein relay. The first member of this protein relay is a small periplasmic protein (21 kDa) called DsbA, which has two cysteine residues that must be oxidized for it to be active. When in its oxidized state, th... | milkshake721/2.1M-wiki-STEM |
Oxidative folding-Isomerization pathway-Especially for proteins that contain more than one disulfide bond, it is important that incorrect disulfide bonds become rearranged. This is carried out in the isomerization pathway by the protein DsbC, that acts as a disulfide isomerase. DsbC is a dimer, consisting of two identi... | milkshake721/2.1M-wiki-STEM |
Oxidative folding-Isomerization pathway-Because these two pathways coexist next to each other in the same periplasmic compartment, there must be a mechanism to prevent oxidation of DsbC by DsbB. This mechanism indeed exists as DsbB can distinguish between DsbA and DsbC because this latter has the ability to dimerize. | milkshake721/2.1M-wiki-STEM |
Oxidative folding-In eukaryotes-A very similar pathway is followed in eukaryotes, in which the protein relay consists of proteins with very analogous properties as those of the protein relay in Gram-negative bacteria. However, a major difference between prokaryotes and eukaryotes is found in the fact that the process o... | milkshake721/2.1M-wiki-STEM |
Oxidative folding-In eukaryotes-A homolog of DsbA, called protein disulfide isomerase (PDI), is responsible for the formation of the disulfide bonds in unfolded eukaryotic proteins. This protein has two thioredoxine-like active sites, which both contain two cysteine residues. By transferring the disulfide bond between ... | milkshake721/2.1M-wiki-STEM |
Oxidative folding-ROS and diseases-Because of the property of Ero1p to transfer electrons directly to molecular oxygen via a flavin-dependent reaction, its activity may produce reactive oxygen species (ROS). In bacteria, this problem is solved by coupling oxidative folding to the respiratory chain. There, the reduction... | milkshake721/2.1M-wiki-STEM |
Oxidative folding-Examples-Classical examples of proteins in which the process of oxidative folding is well studied are bovine pancreatic trypsin inhibitor (BPTI) and ribonuclease A (RNaseA). These two proteins have multiple disulfide bonds and so they are very useful to follow and understand the process of oxidative f... | milkshake721/2.1M-wiki-STEM |
Tetrahydrofurfuryl alcohol-Tetrahydrofurfuryl alcohol-Tetrahydrofurfuryl alcohol (THFA) is an organic compound with the formula HOCH2C4H7O. In terms of its structure, it consists of a tetrahydrofuran ring substituted in the 2-position with a hydroxymethyl group. It is a colorless liquid that is used as a specialty solv... | milkshake721/2.1M-wiki-STEM |
Tetrahydrofurfuryl alcohol-Other uses-THFA is often used in epoxy resin formulations in either the epoxy component or amine hardener as well as other general resin applications. | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Phaethontis quadrangle-The Phaethontis quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Phaethontis quadrangle is also referred to as MC-24 (Mars Chart-24).The name comes from Phaethon, the son of Hel... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Martian gullies-The Phaethontis quadrangle is the location of many gullies that may be due to recent flowing water. Some are found in the Gorgonum Chaos and in many craters near the large craters Copernicus and Newton (Martian crater). Gullies occur on steep slopes, especially on the walls of cra... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Martian gullies-There is evidence for all three theories. Most of the gully alcove heads occur at the same level, just as one would expect of an aquifer. Various measurements and calculations show that liquid water could exist in aquifers at the usual depths where gullies begin. One variation of ... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Martian gullies-The ice-rich mantle may be the result of climate changes. Changes in Mars's orbit and tilt cause significant changes in the distribution of water ice from polar regions down to latitudes equivalent to Texas. During certain climate periods water vapor leaves polar ice and enters th... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Martian gullies-Higher elevations have far fewer gullies because ice would tend to sublimate more in the thin air of the higher altitude.The third theory might be possible since climate changes may be enough to simply allow ice in the ground to melt and thus form the gullies. During a warmer clim... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Associated features of gullies-Sometimes other features appear near gullies. At the base of some gullies there may be depressions or curved ridges. These have been called "spatulate depressions." These depressions form after glacial ice disappears. Steep walls often develop glaciers during certai... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Possible pingos-The radial and concentric cracks visible here are common when forces penetrate a brittle layer, such as a rock thrown through a glass window. These particular fractures were probably created by something emerging from below the brittle Martian surface. Ice may have accumulated und... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Concentric crater fill-Concentric crater fill, like lobate debris aprons and lineated valley fill, is believed to be ice-rich. Based on accurate topography measures of height at different points in these craters and calculations of how deep the craters should be based on their diameters, it is th... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Magnetic stripes and plate tectonics-The Mars Global Surveyor (MGS) discovered magnetic stripes in the crust of Mars, especially in the Phaethontis and Eridania quadrangles (Terra Cimmeria and Terra Sirenum). The magnetometer on MGS discovered 100 km wide stripes of magnetized crust running rough... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Chloride deposits-Using data from Mars Global Surveyor, Mars Odyssey and the Mars Reconnaissance Orbiter, scientists have found widespread deposits of chloride minerals. A picture below shows some deposits within the Phaethontis quadrangle. Evidence suggests that the deposits were formed from the... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Fossae-The Elysium quadrangle is home to large troughs (long narrow depressions) called fossae in the geographical language used for Mars. Troughs are created when the crust is stretched until it breaks. The stretching can be due to the large weight of a nearby volcano. Fossae/pit craters are com... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Craters-The density of impact craters is used to determine the surface ages of Mars and other solar system bodies. The older the surface, the more craters present. Crater shapes can reveal the presence of ground ice. | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Craters-The area around craters may be rich in minerals. On Mars, heat from the impact melts ice in the ground. Water from the melting ice dissolves minerals, and then deposits them in cracks or faults that were produced with the impact. This process, called hydrothermal alteration, is a major wa... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Craters-Many craters once contained lakes. Because some crater floors show deltas, we know that water had to be present for some time. Dozens of deltas have been spotted on Mars. Deltas form when sediment is washed in from a stream entering a quiet body of water. It takes a bit of time to form a ... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Craters-List of craters The following is a list of craters in the quadrangle. The crater's central location is of the quadrangle, craters that its central location is in another quadrangle is listed by eastern, western, northern or southern part.
1Partly located in the quadrangle while another pa... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Linear ridge networks-Linear ridge networks are found in various places on Mars in and around craters. Ridges often appear as mostly straight segments that intersect in a lattice-like manner. They are hundreds of meters long, tens of meters high, and several meters wide. It is thought that impact... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Linear ridge networks-Since the ridges occur in locations with clay, these formations could serve as a marker for clay which requires water for its formation. Water here could have supported past life in these locations. Clay may also preserve fossils or other traces of past life. | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Dunes-Sand dunes have been found in many places on Mars. The presence of dunes shows that the planet has an atmosphere with wind, for dunes require wind to pile up the sand. Most dunes on Mars are black because of the weathering of the volcanic rock basalt. Black sand can be found on Earth on Haw... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Dunes-Sand is common on Mars due to the old age of the surface that has allowed rocks to erode into sand. Dunes on Mars have been observed to move many meters.
Some dunes move along. In this process, sand moves up the windward side and then falls down the leeward side of the dune, thus caused the... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Mantle-Much of the Martian surface is covered with a thick ice-rich, mantle layer that has fallen from the sky a number of times in the past. In some places a number of layers are visible in the mantle. | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Channels-There is enormous evidence that water once flowed in river valleys on Mars. Images of curved channels have been seen in images from Mars spacecraft dating back to the early seventies with the Mariner 9 orbiter. Indeed, a study published in June 2017, calculated that the volume of water n... | milkshake721/2.1M-wiki-STEM |
Phaethontis quadrangle-Dust devil tracks-Because a thin coating of fine bright dust covers much of the surface of Mars, passing dust devils remove the bright dust and expose the underlying dark surface. Dust devils have been seen from the ground and from orbiting spacecraft. They have even blown the dust off of the sol... | milkshake721/2.1M-wiki-STEM |
Dinosaur Game-Dinosaur Game-The Dinosaur Game (also known as the Chrome Dino) is a browser game developed by Google and built into the Google Chrome web browser. The player guides a pixelated Tyrannosaurus rex across a side-scrolling landscape, avoiding obstacles to achieve a higher score. The game was created by membe... | milkshake721/2.1M-wiki-STEM |
Dinosaur Game-Gameplay-When a user attempts to navigate to a web page on Google Chrome while being offline, the browser notifies the user that they are not connected to the Internet, with an illustration of a pixelated Tyrannosaurus rex shown on the page. The game can then be launched either by pressing space or ↑ on d... | milkshake721/2.1M-wiki-STEM |
Dinosaur Game-Gameplay-Once the player reaches around 700 points, the game switches from dark gray graphics on a white background to pale gray graphics on a black background, representing a shift from day to night, with daytime sky graphics also becoming nighttime sky graphics. The color scheme then alternates as the g... | milkshake721/2.1M-wiki-STEM |
Dinosaur Game-Development-The game was created by members of the Chrome UX team in 2014, which consisted of Sebastien Gabriel, Alan Bettes, and Edward Jung. Gabriel designed the player character, named the "Lonely T-Rex". During development, the game was given the codename "Project Bolan", in reference to Marc Bolan, t... | milkshake721/2.1M-wiki-STEM |
Dinosaur Game-Reception-The game received widespread recognition, with the creators revealing in September 2018 that approximately 270 million games were played monthly. | milkshake721/2.1M-wiki-STEM |
Dinosaur Game-In popular culture-The Dinosaur Game is referenced in the "couch gag" opening segment of the season 34 premiere of The Simpsons, "Habeas Tortoise". | milkshake721/2.1M-wiki-STEM |
Dinosaur Game-Related media-In May 2020, a Microsoft Edge update added Surf, a game where players control a surfer attempting to evade obstacles and collect powerups. Like the Dinosaur Game, it is accessible from an error page when the browser is offline. The game allows for character customization and multiple control... | milkshake721/2.1M-wiki-STEM |
Potato fruit-Potato fruit-The potato fruit is the part of the potato plant that, after flowering, produces a toxic, green cherry tomato-like fruit. | milkshake721/2.1M-wiki-STEM |
Potato fruit-Characteristics-After flowering, potato plants produce small green fruits that resemble green cherry tomatoes, each containing about 300 seeds. Like all other parts of the plant except the tubers, the fruit contain the toxic alkaloid solanine and are therefore unsuitable for consumption. All new potato var... | milkshake721/2.1M-wiki-STEM |
Potato fruit-Characteristics-Potato fruits are produced when the plants experience cool temperatures and sufficient water. In 2014, many gardeners in Michigan, United States, were alarmed when they found the green fruit which are not normally produced on the potato plant in that region. This was due to the weather in J... | milkshake721/2.1M-wiki-STEM |
Potato fruit-In popular culture-Dorothy L. Sayers's short story The Leopard Lady, in the 1939 collection In the Teeth of the Evidence, features a child poisoned by potato berries injected with the alkaloid solanine to increase their toxicity. | milkshake721/2.1M-wiki-STEM |
Blennorrhea-Blennorrhea-Blennorrhea is mucous discharge, especially from the urethra or vagina (that is, mucus vaginal discharge). Blennorrhagia is an excess of such discharge, often specifically referring to that seen in gonorrhea. In fact, blennorrhagia is also a German name of gonorrhea that was previously in use, b... | milkshake721/2.1M-wiki-STEM |
Hangul Compatibility Jamo-Hangul Compatibility Jamo-Hangul Compatibility Jamo is a Unicode block containing Hangul characters for compatibility with the South Korean national standard KS X 1001 (formerly KS C 5601). Its block name in Unicode 1.0 was Hangul Elements. | milkshake721/2.1M-wiki-STEM |
Hangul Compatibility Jamo-History-The following Unicode-related documents record the purpose and process of defining specific characters in the Hangul Compatibility Jamo block: | milkshake721/2.1M-wiki-STEM |
Sherman–Morrison formula-Sherman–Morrison formula-In mathematics, in particular linear algebra, the Sherman–Morrison formula, named after Jack Sherman and Winifred J. Morrison, computes the inverse of the sum of an invertible matrix A and the outer product, uvT , of vectors u and v . The Sherman–Morrison formula is... | milkshake721/2.1M-wiki-STEM |
Sherman–Morrison formula-Statement-Suppose A∈Rn×n is an invertible square matrix and u,v∈Rn are column vectors. Then A+uvT is invertible iff 1+vTA−1u≠0 . In this case, (A+uvT)−1=A−1−A−1uvTA−11+vTA−1u.
Here, uvT is the outer product of two vectors u and v . The general form shown here is the one published by Bar... | milkshake721/2.1M-wiki-STEM |
Sherman–Morrison formula-Proof-(⇐ ) To prove that the backward direction 1+vTA−1u≠0⇒A+uvT is invertible with inverse given as above) is true, we verify the properties of the inverse. A matrix Y (in this case the right-hand side of the Sherman–Morrison formula) is the inverse of a matrix X (in this case A+uvT ) if a... | milkshake721/2.1M-wiki-STEM |
Sherman–Morrison formula-Proof-(In fact, the last step can be avoided since for square matrices X and Y , XY=I is equivalent to YX=I .) (⇒ ) Reciprocally, if 1+vTA−1u=0 , then via the matrix determinant lemma, det det (A)=0 , so (A+uvT) is not invertible. | milkshake721/2.1M-wiki-STEM |
Sherman–Morrison formula-Application-If the inverse of A is already known, the formula provides a numerically cheap way to compute the inverse of A corrected by the matrix uvT (depending on the point of view, the correction may be seen as a perturbation or as a rank-1 update). The computation is relatively cheap bec... | milkshake721/2.1M-wiki-STEM |
Sherman–Morrison formula-Application-This formula also has application in theoretical physics. Namely, in quantum field theory, one uses this formula to calculate the propagator of a spin-1 field. The inverse propagator (as it appears in the Lagrangian) has the form (A+uvT) . One uses the Sherman–Morrison formula to c... | milkshake721/2.1M-wiki-STEM |
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