text stringlengths 11 320k | source stringlengths 26 161 |
|---|---|
An X mark (also known as an ex mark or a cross mark or simply an X or ex or a cross ) is used to indicate the concept of negation (for example "no, this has not been verified", "no, that is not the correct answer" or "no, I do not agree") as well as an indicator (for example, in election ballot papers or in maps as an ... | https://en.wikipedia.org/wiki/X_mark |
Xanadu Quantum Technologies is a Canadian quantum computing hardware and software company headquartered in Toronto, Ontario. [ 1 ] [ 2 ] [ 3 ] The company develops cloud accessible photonic quantum computers [ 4 ] [ 5 ] [ 6 ] [ 7 ] and develops open-source software for quantum machine learning and simulating quantum ph... | https://en.wikipedia.org/wiki/Xanadu_Quantum_Technologies |
A xanthate is a salt or ester of a xanthic acid. The formula of the salt of xanthic acid is [R−O−CS 2 ] − M + (where R is organyl group and M is usually Na or K ). [ 1 ] Xanthate also refers to the anion [R−O−CS 2 ] − . The formula of a xanthic acid is R−O−C(=S)−S−H , such as ethyl xanthic acid , while the formula of a... | https://en.wikipedia.org/wiki/Xanthate |
Xanthine oxidase ( XO or XAO ) is a form of xanthine oxidoreductase, a type of enzyme that generates reactive oxygen species . [ 2 ] These enzymes catalyze the oxidation of hypoxanthine to xanthine and can further catalyze the oxidation of xanthine to uric acid . These enzymes play an important role in the catabolism ... | https://en.wikipedia.org/wiki/Xanthine_oxidase |
Xanthosine monophosphate ( xanthylate ) is an intermediate in purine metabolism . [ 1 ] It is a ribonucleoside monophosphate . It is formed from IMP via the action of IMP dehydrogenase , and it forms GMP via the action of GMP synthase . Also, XMP can be released from XTP by enzyme deoxyribonucleoside triphosphate pyrop... | https://en.wikipedia.org/wiki/Xanthosine_monophosphate |
The Xbox 360 video game console was subject to a number of technical problems and failures, some as a result of design flaws. Some issues could be identified by a pattern of red lights on the front face of the console; these colloquially became known as the " Red Ring of Death " or the " RRoD ". [ 1 ] [ 2 ] There were ... | https://en.wikipedia.org/wiki/Xbox_360_technical_problems |
Xcode is a suite of developer tools for building apps on Apple devices. [ 4 ] It includes an integrated development environment (IDE) of the same name for macOS , used to develop software for macOS, iOS , iPadOS , watchOS , tvOS , and visionOS . It was initially released in late 2003; the latest stable release is vers... | https://en.wikipedia.org/wiki/Xcode |
The R1 (internally called XCON , for e X pert CON figurer) program was a production-rule -based system written in OPS5 by John P. McDermott of Carnegie Mellon University in 1978 to assist in the ordering of DEC 's VAX computer systems by automatically selecting the computer system components based on the customer's req... | https://en.wikipedia.org/wiki/Xcon |
Bis(pentafluorophenyl)xenon is an unstable organic compound of xenon . [ 1 ] [ 2 ] It consists of two fluorinated phenyl rings connected to xenon.
Bis(pentafluorophenyl)xenon is a molecular substance. In the solid form it crystallises in the monoclinic system with space group P 2 1 / n . [ 3 ] The unit cell has four m... | https://en.wikipedia.org/wiki/Xe(C6F5)2 |
Xenon dibromide is an unstable chemical compound with the chemical formula XeBr 2 . It was only produced by the decomposition of iodine-129 : [ 2 ] [ 3 ]
Attempts to prepare this compound by combining elemental xenon and bromine only resulted in the XeBr radical . [ 4 ] This compound is expected to be less stable than... | https://en.wikipedia.org/wiki/XeBr2 |
Xenon monochloride (XeCl) is an exciplex which is used in excimer lasers and excimer lamps emitting near ultraviolet light at 308 nm. It is most commonly used in medicine . Xenon monochloride was first synthesized in the 1960s. Its kinetic scheme is very complex and its state changes occur on a nanosecond timescale. I... | https://en.wikipedia.org/wiki/XeCl |
Xenon dichloride (XeCl 2 ) is a xenon compound and the only known stable chloride of xenon . The compound can be prepared by using microwave discharges towards the mixture of xenon and chlorine, and it can be isolated from a condensate trap . One experiment [ which? ] tried to use xenon, chlorine and boron trichloride ... | https://en.wikipedia.org/wiki/XeCl2 |
Xenon tetrachloride is an unstable [ 1 ] inorganic compound with the chemical formula XeCl 4 . Unlike other noble gas / halide compounds, it cannot be synthesized by simply combining the elements , by using a more-active halogenating agent, or by substitution of other halides on tetrahaloxenon compounds. Instead, a dec... | https://en.wikipedia.org/wiki/XeCl4 |
Xenon difluoride is a powerful fluorinating agent with the chemical formula XeF 2 , and one of the most stable xenon compounds . Like most covalent inorganic fluorides it is moisture-sensitive. It gradually decomposes on contact with water vapor , but is otherwise stable in storage. Xenon difluoride is a dense, colourl... | https://en.wikipedia.org/wiki/XeF2 |
Xenon tetrafluoride is a chemical compound with chemical formula XeF 4 . It was the first discovered binary compound of a noble gas . [ 3 ] It is produced by the chemical reaction of xenon with fluorine : [ 4 ] [ 5 ]
This reaction is exothermic , releasing an energy of 251 kJ /mol. [ 3 ]
Xenon tetrafluoride is a colo... | https://en.wikipedia.org/wiki/XeF4 |
Xenon hexafluoride is a noble gas compound with the formula XeF 6 . It is one of the three binary fluorides of xenon that have been studied experimentally, the other two being XeF 2 and XeF 4 . All of them are exergonic and stable at normal temperatures. XeF 6 is the strongest fluorinating agent of the series. It is a ... | https://en.wikipedia.org/wiki/XeF6 |
Xenon dioxide , or xenon(IV) oxide , is a compound of xenon and oxygen with formula XeO 2 which was synthesized in 2011. It is synthesized at 0 °C by hydrolysis of xenon tetrafluoride in aqueous sulfuric acid : [ 2 ]
XeO 2 has an extended (chain or network) structure in which xenon and oxygen have coordination number... | https://en.wikipedia.org/wiki/XeO2 |
Xenon dioxydifluoride is an inorganic chemical compound with the formula XeO 2 F 2 . [ 3 ] [ 2 ] At room temperature it exists as a metastable solid, which decomposes slowly into xenon difluoride , but the cause of this decomposition is unknown. [ 2 ]
Xenon dioxydifluoride is prepared by reacting xenon trioxide with x... | https://en.wikipedia.org/wiki/XeO2F2 |
Xenon trioxide is an unstable compound of xenon in its +6 oxidation state . It is a very powerful oxidizing agent , and liberates oxygen from water slowly, accelerated by exposure to sunlight. It is dangerously explosive upon contact with organic materials. When it detonates, it releases xenon and oxygen gas.
Synthesi... | https://en.wikipedia.org/wiki/XeO3 |
Xenon tetroxide is a chemical compound of xenon and oxygen with molecular formula XeO 4 , remarkable for being a relatively stable compound of a noble gas . It is a yellow crystalline solid that is stable below −35.9 ° C ; above that temperature it is very prone to exploding and decomposing into elemental xenon and oxy... | https://en.wikipedia.org/wiki/XeO4 |
Xenon oxydifluoride is an inorganic compound with the molecular formula XeOF 2 . The first definitive isolation of the compound was published on 3 March 2007, producing it by the previously-examined route of partial hydrolysis of xenon tetrafluoride . [ 1 ]
The compound has a T-shaped geometry. [ 1 ] It is a weak Lewi... | https://en.wikipedia.org/wiki/XeOF2 |
Xenon oxytetrafluoride ( Xe O F 4 ) is an inorganic chemical compound . It is an unstable colorless liquid [ 2 ] [ 3 ] with a melting point of −46.2 °C (−51.2 °F; 227.0 K) [ 4 ] that can be synthesized by partial hydrolysis of XeF 6 , or the reaction of XeF 6 with silica [ 3 ] or NaNO 3 : [ 5 ]
A high-yield synthesis ... | https://en.wikipedia.org/wiki/XeOF4 |
Xenon hexafluoroplatinate is the product of the reaction of platinum hexafluoride with xenon , in an experiment that proved the chemical reactivity of the noble gases . This experiment was performed by Neil Bartlett at the University of British Columbia , who formulated the product as "Xe + [PtF 6 ] − ", although subse... | https://en.wikipedia.org/wiki/XePtF6 |
Xellia ApS is a Danish multinational pharmaceutical and life sciences company headquartered in Copenhagen [ 1 ] specialized in the production of anti-biotics , including Vancomycin [ 2 ] and Bacitracin . [ 3 ]
The company's US base of operations is in Buffalo Grove, Illinois , [ 4 ] [ 5 ] with additional facilities in... | https://en.wikipedia.org/wiki/Xellia |
Xenbase is a Model Organism Database (MOD) , providing informatics resources, as well as genomic and biological data on Xenopus frogs. [ 1 ] Xenbase has been available since 1999, and covers both X. laevis and X. tropicalis Xenopus varieties. [ 2 ] As of 2013 all of its services are running on virtual machines in a pri... | https://en.wikipedia.org/wiki/Xenbase |
Xenic acid is a proposed noble gas compound with the chemical formula H 2 XeO 4 or XeO 2 (OH) 2 . It has not been isolated, and the published characterization data are ambiguous. [ 2 ]
Salts of xenic acid are called xenates , containing the HXeO − 4 anion, such as monosodium xenate . They tend to disproportionate into... | https://en.wikipedia.org/wiki/Xenic_acid |
Xenoarchaeology , a branch of xenology dealing with extraterrestrial cultures , is a hypothetical form of archaeology that exists mainly in works of science fiction. The field is concerned with the study of the material remains to reconstruct and interpret past life-ways of alien civilizations. Xenoarchaeology is not c... | https://en.wikipedia.org/wiki/Xenoarchaeology |
Xenobiology ( XB ) is a subfield of synthetic biology , the study of synthesizing and manipulating biological devices and systems. [ 1 ] The name "xenobiology" derives from the Greek word xenos , which means "stranger, alien". Xenobiology is a form of biology that is not (yet) familiar to science and is not found in na... | https://en.wikipedia.org/wiki/Xenobiology |
A xenobiotic is a chemical substance found within an organism that is not naturally produced or expected to be present within the organism. It can also cover substances that are present in much higher concentrations than are usual. Natural compounds can also become xenobiotics if they are taken up by another organism,... | https://en.wikipedia.org/wiki/Xenobiotic |
Xenobiotic metabolism (from the Greek xenos "stranger" and biotic "related to living beings") is the set of metabolic pathways that modify the chemical structure of xenobiotics , which are compounds foreign to an organism's normal biochemistry, such as drugs and poisons. These pathways are a form of biotransformation ... | https://en.wikipedia.org/wiki/Xenobiotic_metabolism |
Xenobots , named after the clawed frog ( Xenopus laevis ), [ 1 ] are synthetic lifeforms that are designed by computers to perform some desired function and built by combining together different biological tissues. [ 1 ] [ 2 ] [ 3 ] [ 4 ] [ 5 ] [ 6 ] There is debate among scientists whether xenobots are robots, organis... | https://en.wikipedia.org/wiki/Xenobot |
Aubrey David Nicholas Jasper de Grey ( / d ə ˈ ɡ r eɪ / ; born 20 April 1963) is an English biomedical gerontologist . He is the author of The Mitochondrial Free Radical Theory of Aging (1999) and co-author of Ending Aging (2007). De Grey is known for his view that medical technology may enable human beings alive today... | https://en.wikipedia.org/wiki/Xenocatabolism |
Xenoestrogens are a type of xenohormone that imitates estrogen . They can be either synthetic or natural chemical compounds . Synthetic xenoestrogens include some widely used industrial compounds, such as PCBs , BPA , and phthalates , which have estrogenic effects on a living organism even though they differ chemically... | https://en.wikipedia.org/wiki/Xenoestrogen |
Xenogamy (Greek xenos =stranger, gamos =marriage) is the transfer of pollen grains from the anther to the stigma of a different plant. This is the only type of cross pollination which during pollination brings genetically different types of pollen grains to the stigma. [ 1 ]
The term xenogamy (along with geitonogamy a... | https://en.wikipedia.org/wiki/Xenogamy |
Xenohormesis is a hypothesis that posits that certain molecules such as plant polyphenols , which indicate stress in the plants, can have benefits for another organism ( heterotrophs ) that consumes it. Or in simpler terms, xenohormesis is interspecies hormesis . The expected benefits include improve lifespan and fitne... | https://en.wikipedia.org/wiki/Xenohormesis |
Xenohormones or environmental hormones are compounds produced outside of the human body that exhibit endocrine hormone -like properties. They may be either of natural origin, such as phytoestrogens , which are derived from plants, or of synthetic origin. These compounds can cause endocrine disruption by multiple mechan... | https://en.wikipedia.org/wiki/Xenohormone |
Xenointoxication is a form of pest control in which an ectoparasite 's host animal is dosed with a substance that is poisonous to the parasite. When the parasite feeds on its host, it is poisoned, and eventually dies. [ citation needed ]
An example of this strategy is the experimental use of oral ivermectin in humans ... | https://en.wikipedia.org/wiki/Xenointoxication |
Xenon-135 ( 135 Xe ) is an unstable isotope of xenon with a half-life of about 9.2 hours. 135 Xe is a fission product of uranium and it is the most powerful known neutron -absorbing nuclear poison (2 million barns ; [ 1 ] up to 3 million barns [ 1 ] under reactor conditions [ 2 ] ), with a significant effect on nuclear... | https://en.wikipedia.org/wiki/Xenon-135 |
Xenon compounds are compounds containing the element xenon (Xe). After Neil Bartlett's discovery in 1962 that xenon can form chemical compounds, a large number of xenon compounds have been discovered and described. Almost all known xenon compounds contain the electronegative atoms fluorine or oxygen. The chemistry of x... | https://en.wikipedia.org/wiki/Xenon_compounds |
Xenon dichloride (XeCl 2 ) is a xenon compound and the only known stable chloride of xenon . The compound can be prepared by using microwave discharges towards the mixture of xenon and chlorine, and it can be isolated from a condensate trap . One experiment [ which? ] tried to use xenon, chlorine and boron trichloride ... | https://en.wikipedia.org/wiki/Xenon_dichloride |
Xenon dioxide , or xenon(IV) oxide , is a compound of xenon and oxygen with formula XeO 2 which was synthesized in 2011. It is synthesized at 0 °C by hydrolysis of xenon tetrafluoride in aqueous sulfuric acid : [ 2 ]
XeO 2 has an extended (chain or network) structure in which xenon and oxygen have coordination number... | https://en.wikipedia.org/wiki/Xenon_dioxide |
Xenon isotope geochemistry uses the abundance of xenon (Xe) isotopes and total xenon to investigate how Xe has been generated, transported, fractionated, and distributed in planetary systems. Xe has nine stable or very long-lived isotopes. Radiogenic 129 Xe and fissiogenic 131,132,134,136 Xe isotopes are of special int... | https://en.wikipedia.org/wiki/Xenon_isotope_geochemistry |
Xenon octafluoride is a chemical compound of xenon and fluorine with the chemical formula Xe F 8 . [ 1 ] This is still a hypothetical compound . [ 2 ] [ 3 ] XeF 8 is reported to be unstable even under pressures reaching 200 GPa. [ 4 ]
The compound was initially predicted in 1933 by Linus Pauling —among other noble gas... | https://en.wikipedia.org/wiki/Xenon_octafluoride |
Xenon tetroxide is a chemical compound of xenon and oxygen with molecular formula XeO 4 , remarkable for being a relatively stable compound of a noble gas . It is a yellow crystalline solid that is stable below −35.9 ° C ; above that temperature it is very prone to exploding and decomposing into elemental xenon and oxy... | https://en.wikipedia.org/wiki/Xenon_tetroxide |
Xenon trioxide is an unstable compound of xenon in its +6 oxidation state . It is a very powerful oxidizing agent , and liberates oxygen from water slowly, accelerated by exposure to sunlight. It is dangerously explosive upon contact with organic materials. When it detonates, it releases xenon and oxygen gas.
Synthesi... | https://en.wikipedia.org/wiki/Xenon_trioxide |
Xenophagy (Greek "strange" + "eating") and allotrophy (Greek "other" + "nutrient") are changes in established patterns of biological consumption, by individuals or groups. | https://en.wikipedia.org/wiki/Xenophagy |
A xenosome is a bacterium that lives in the body of some marine protozoans . It primarily refers to bacterial invaders of the cytoplasm of a single genus of marine scuticociliates . [ 1 ] They are found in ciliates , sometimes with a methanogenic role inside anaerobic ciliates. [ 2 ]
In 1985, researcher John Corliss p... | https://en.wikipedia.org/wiki/Xenosome |
Xenotransplantation ( xenos- from the Greek meaning "foreign" or strange [ 1 ] [ 2 ] ), or heterologous transplant , is the transplantation of living cells , tissues or organs from one species to another. [ 3 ] Such cells, tissues or organs are called xenografts or xenotransplants . It is contrasted with allotransplant... | https://en.wikipedia.org/wiki/Xenotransplantation |
A xerophile (from Greek ξηρός : xērós ' dry ' and φίλος : phílos ' loving ' ) [ 1 ] is an extremophilic organism that can grow and reproduce in conditions with a low availability of water, also known as water activity .
Water activity, a thermodynamical value denoted a w , is defined as the partial water vapor pressur... | https://en.wikipedia.org/wiki/Xerophile |
The Xerox Dover laser printer was an early laser printer manufactured at Xerox PARC in the late 1970s. [ 1 ] Around 35 were built. [ 1 ] It was a successor to the EARS printer, itself a successor to the Xerox Graphics Printer . [ 2 ]
The Dover was developed by Gary Starkweather . [ 3 ] The printer was based on a strip... | https://en.wikipedia.org/wiki/Xerox_Dover |
The Xi baryons or cascade particles are a family of subatomic hadron particles which have the symbol Ξ and may have an electric charge ( Q ) of +2 e , +1 e , 0, or −1 e , where e is the elementary charge .
Like all conventional baryons , Ξ particles contain three quarks . Ξ baryons, in particular, contain either one u... | https://en.wikipedia.org/wiki/Xi_baryon |
Xiangfeng wu ( Chinese : 相風烏 ; pinyin : xiāngfēngwū ; lit. 'wind-indicating bird') [ 1 ] were wind surveying instruments used to gather and measure the direction of the wind in ancient China. [ 2 ]
Prior to the invention of Xiangfeng wu, the ancient Chinese used pieces of silk or cloth that was hung on a pole to measu... | https://en.wikipedia.org/wiki/Xiangfeng_wu |
Xiao Cheng Zeng is a scientist in physical chemistry and materials science. He currently serves as the Head of Department of Materials Science & Engineering and a Chair Professor of Materials Chemistry and Chemical Engineering at City University of Hong Kong . He is also an Emeritus Chancellor's University Professor at... | https://en.wikipedia.org/wiki/Xiao_Cheng_Zeng |
50 MP, f/2.0, 75mm (telephoto), PDAF (10cm - ∞), OIS, 3.2x optical zoom
The Xiaomi 14 is a series of Android -based smartphones manufactured by Xiaomi that succeeds the Xiaomi 13 series. The series is the company's flagship [ 4 ] range. The Xiaomi 14 and 14 Pro, the first phones to feature a Qualcomm Snapdragon 8 Gen ... | https://en.wikipedia.org/wiki/Xiaomi_14 |
50 MP, f/2.0, 75mm (telephoto), PDAF (10cm - ∞), OIS, 3.2x optical zoom
The Xiaomi 14 is a series of Android -based smartphones manufactured by Xiaomi that succeeds the Xiaomi 13 series. The series is the company's flagship [ 4 ] range. The Xiaomi 14 and 14 Pro, the first phones to feature a Qualcomm Snapdragon 8 Gen ... | https://en.wikipedia.org/wiki/Xiaomi_14_Pro |
50 MP, f/2.0, 75mm (telephoto), PDAF (10cm - ∞), OIS, 3.2x optical zoom
The Xiaomi 14 is a series of Android -based smartphones manufactured by Xiaomi that succeeds the Xiaomi 13 series. The series is the company's flagship [ 4 ] range. The Xiaomi 14 and 14 Pro, the first phones to feature a Qualcomm Snapdragon 8 Gen ... | https://en.wikipedia.org/wiki/Xiaomi_14_Ultra |
Xiaomi 15 is a series of Android -based smartphones manufactured by Xiaomi . It succeeds the Xiaomi 14 series and introduces advancements in display technology, camera system, and performance. The devices run on Xiaomi HyperOS 2, based on Android 15 , and are powered by the Qualcomm Snapdragon 8 Elite chipset. The Xiao... | https://en.wikipedia.org/wiki/Xiaomi_15 |
Xiaomi 15 is a series of Android -based smartphones manufactured by Xiaomi . It succeeds the Xiaomi 14 series and introduces advancements in display technology, camera system, and performance. The devices run on Xiaomi HyperOS 2, based on Android 15 , and are powered by the Qualcomm Snapdragon 8 Elite chipset. The Xiao... | https://en.wikipedia.org/wiki/Xiaomi_15_Pro |
Xiaomi 15 is a series of Android -based smartphones manufactured by Xiaomi . It succeeds the Xiaomi 14 series and introduces advancements in display technology, camera system, and performance. The devices run on Xiaomi HyperOS 2, based on Android 15 , and are powered by the Qualcomm Snapdragon 8 Elite chipset. The Xiao... | https://en.wikipedia.org/wiki/Xiaomi_15_Ultra |
The Xiaomi Mi Smart Band 5 ( Xiaomi Mi Band 5 in China) is a wearable activity tracker produced by Xiaomi Inc . It was announced in China on 11 June 2020, and went on sale on 18 June 2020 in China, [ 1 ] with a Global version released on 15 July 2020 [ 2 ] as Xiaomi Mi Smart Band 5. It was released in India on 29 Septe... | https://en.wikipedia.org/wiki/Xiaomi_Mi_Smart_Band_5 |
Ximera (pronounced “chimera”) is an open-source, interactive textbook platform, most commonly used in teaching math. [ 1 ] It was originally an massive open online course by Ohio State University on Coursera and YouTube . [ 2 ] The system was originally known as MOOCulus and Calculus One . [ 3 ]
The course features ov... | https://en.wikipedia.org/wiki/Ximera |
XINU Is Not Unix ( XINU , a recursive acronym ), is an operating system for embedded systems , [ 2 ] originally developed by Douglas Comer for educational use at Purdue University in the 1980s. The name is both recursive, and is Unix spelled backwards. It has been ported to many hardware platforms, including the DEC PD... | https://en.wikipedia.org/wiki/Xinu |
Xirang ( Chinese : 息壤 ; pinyin : xírǎng ) [ a ] was a magical soil in Chinese mythology with the ability to self-expand and grow continuously. Its properties made it particularly effective for use by Gun and Yu the Great in fighting the rising waters of the Great Flood . [ 1 ]
This Chinese word compounds xí 息 "breathe... | https://en.wikipedia.org/wiki/Xirang |
Xsupplicant is a supplicant that allows a workstation to authenticate with a RADIUS server using 802.1X and the Extensible Authentication Protocol (EAP). It can be used for computers with wired or wireless LAN connections to complete a strong authentication before joining the network and supports the dynamic assignment... | https://en.wikipedia.org/wiki/Xsupplicant |
Xtracycle is the name of a company [ 1 ] and the name commonly used for the variety of load-carrying bicycle that results from use of the company's products: the FreeRadical kit. [ 2 ] Web forums and blogs often use the shorthand Xtrabike , Xtra , or simply X to refer to either the FreeRadical extension or the entire ... | https://en.wikipedia.org/wiki/Xtracycle |
Xuan tu or Hsuan thu ( simplified Chinese : 弦图 ; traditional Chinese : 絃圖 ; pinyin : xuántú ; Wade–Giles : hsüan 2 tʻu 2 ) is a diagram given in the ancient Chinese astronomical and mathematical text Zhoubi Suanjing indicating a proof of the Pythagorean theorem . [ 1 ] Zhoubi Suanjing is one of the oldest Chinese texts... | https://en.wikipedia.org/wiki/Xuan_tu |
Xuntian ( Chinese : 巡天 ; pinyin : Xúntiān ; lit: Tour of Heaven), [ a ] also known as the Chinese Space Station Telescope [ 5 ] ( CSST ) ( Chinese : 巡天空间望远镜 ; pinyin : Xúntiān Kōngjiān Wàngyuǎnjìng ) is a planned Chinese space telescope currently under development. [ 6 ]
It will feature a 2-meter (6.6 foot) diameter p... | https://en.wikipedia.org/wiki/Xuntian |
ΧyMTeΧ is a macro package for TeX which renders high-quality chemical structure diagrams. Using the typesetting system, the name is styled as X ϒ M T e X . It was originally written by Shinsaku Fujita ( 藤田眞作 , Fujita Shinsaku ) . Molecules are defined by TeX markup .
The following code produces the image for corticost... | https://en.wikipedia.org/wiki/XyMTeX |
Xylan ( / ˈ z aɪ l æ n / ; [ 3 ] / ˈ z aɪ l ən / [ 4 ] ) ( CAS number : 9014-63-5) is a type of hemicellulose , a polysaccharide consisting mainly of xylose residues. It is found in plants , in the secondary cell walls of dicots and all cell walls of grasses . [ 5 ] Xylan is the third most abundant polysaccharide on E... | https://en.wikipedia.org/wiki/Xylan |
Xylan is a fluoropolymer -based industrial coating, most commonly used in non-stick cookware. Generally, it is applied in a thin film to the target material to improve its durability and non-stick properties.
Consumer demand for non-stick coatings with improved durability drove research in the 1960s. DuPont , at that ... | https://en.wikipedia.org/wiki/Xylan_(coating) |
In organic chemistry , xylene or xylol (from Greek ξύλον (xylon) ' wood ' ; [ 1 ] [ 2 ] IUPAC name : dimethylbenzene ) are any of three organic compounds with the formula (CH 3 ) 2 C 6 H 4 . They are derived from the substitution of two hydrogen atoms with methyl groups in a benzene ring; which hydrogens are substitute... | https://en.wikipedia.org/wiki/Xylene |
Xylenol orange is an organic reagent , most commonly used as a tetrasodium salt as an indicator for metal titrations . When used for metal titrations , it will appear red in the titrand and become yellow once it reaches its endpoint. Historically, commercial preparations of it have been notoriously impure, [ 2 ] somet... | https://en.wikipedia.org/wiki/Xylenol_orange |
Xylit (from xylon , "silk") is a waste product generated by the mining of lignite . As in peat , embedded iron structures do not become completely sedimented . Its density is around 250 kg/m 3 . [ 1 ]
Its very low heat content , even in a dried state, makes it a good fuel for heat generation. It has been used in Franc... | https://en.wikipedia.org/wiki/Xylit |
Xylitol pentanitrate ( XPN ) is a nitrated ester primary explosive [ 3 ] [ 4 ] first synthesized in 1891 by Gabriel Bertrand . [ 5 ] [ 6 ] Law enforcement has taken an interest in XPN along with erythritol tetranitrate (ETN) and pentaerythritol tetranitrate (PETN) due to their ease of synthesis, which makes them access... | https://en.wikipedia.org/wiki/Xylitol_pentanitrate |
Xylomannan is an antifreeze molecule, found in the freeze-tolerant Alaskan beetle Upis ceramboides . [ 1 ] Unlike antifreeze proteins , xylomannan is not a protein. Instead, it is a combination of a sugar ( saccharide ) and a fatty acid that is found in cell membranes . [ 2 ] As such is expected to work in a different... | https://en.wikipedia.org/wiki/Xylomannan |
A xylopodium is a underground storage growth which is multibranched and may cover a circle thirty feet (nine meters) in diameter. [ 1 ] They differ from lignotubers which are more compact in form, like a tuber . They are most common in the cerrados of Brazil even including a monocot ( Smilax goyazana ), [ 1 ] but the m... | https://en.wikipedia.org/wiki/Xylopodium |
D- Xylose is a five-carbon aldose ( pentose , monosaccharide ) that can be catabolized or metabolized into useful products by a variety of organisms.
There are at least four different pathways for the catabolism of D-xylose: An oxido-reductase pathway is present in eukaryotic microorganisms. Prokaryotes typically use ... | https://en.wikipedia.org/wiki/Xylose_metabolism |
Yttrium(III) nitrate is an inorganic compound , a salt with the formula Y(NO 3 ) 3 . The hexahydrate is the most common form commercially available.
Yttrium(III) nitrate can be prepared by dissolving corresponding metal oxide in 6 mol/L nitric acid : [ 1 ]
Yttrium(III) nitrate hexahydrate loses crystallized water at ... | https://en.wikipedia.org/wiki/Y(NO3)3 |
A Y-SNP is a single-nucleotide polymorphism on the Y chromosome . Y-SNPs are often used in paternal genealogical DNA testing . [ 1 ]
A single nucleotide polymorphism (SNP) is a change to a single nucleotide in a DNA sequence . [ 2 ] The relative mutation rate for an SNP is extremely low. [ 3 ] This makes them ideal fo... | https://en.wikipedia.org/wiki/Y-SNP |
In organic chemistry , aromaticity is a chemical property describing the way in which a conjugated ring of unsaturated bonds , lone pairs , or empty orbitals exhibits a stabilization stronger than would be expected from conjugation alone. The earliest use of the term was in an article by August Wilhelm Hofmann in 1855... | https://en.wikipedia.org/wiki/Y-aromaticity |
y-cruncher is a computer program for the calculation of some mathematical constant with theoretical accuracy limited only by computing time and available storage space. It was originally developed to calculate the Euler-Mascheroni constant γ ; the y is derived from it in the name.
Since 2010, y-cruncher has been used ... | https://en.wikipedia.org/wiki/Y-cruncher |
The Y-factor method is a widely used technique for measuring the gain and noise temperature of an amplifier . It is based on the Johnson–Nyquist noise of a resistor at two different, known temperatures. [ 1 ]
Consider a microwave amplifier with a 50- ohm impedance with a 50-ohm resistor connected to the amplifier inpu... | https://en.wikipedia.org/wiki/Y-factor |
In mathematics , the y-homeomorphism , or crosscap slide , is a special type of auto- homeomorphism in non-orientable surfaces .
It can be constructed by sliding a Möbius strip included on the surface
around an essential 1-sided closed curve until the original position; thus it is necessary that the surfaces have gen... | https://en.wikipedia.org/wiki/Y-homeomorphism |
In analytic geometry , using the common convention that the horizontal axis represents a variable x {\displaystyle x} and the vertical axis represents a variable y {\displaystyle y} , a y {\displaystyle y} -intercept or vertical intercept is a point where the graph of a function or relation intersects the y {\displayst... | https://en.wikipedia.org/wiki/Y-intercept |
Indian National Science Academy
Bhabha Atomic Research Centre, Mumbai
Yogendra Pathak Viyogi ( Y. P. Viyogi ) is an Indian physicist at Indian National Science Academy . He is specialized in the field of experimental nuclear physics . [ 1 ] [ 2 ] [ 3 ]
"It is certainly a matter of great pride for all of us to be a pa... | https://en.wikipedia.org/wiki/Y._P._Viyogi |
Yttrium oxide , also known as yttria , is Y 2 O 3 . It is an air-stable, white solid substance .
The thermal conductivity of yttrium oxide is 27 W/(m·K). [ 5 ]
Yttrium oxide is widely used to make Eu:YVO 4 and Eu:Y 2 O 3 phosphors that give the red color in color TV picture tubes.
Y 2 O 3 is a prospective solid-stat... | https://en.wikipedia.org/wiki/Y2O3 |
Yttrium(III) sulfide ( Y 2 S 3 ) is an inorganic chemical compound . It is a compound of yttrium and sulfur .
This inorganic compound –related article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/Y2S3 |
Yttrium aluminium garnet ( YAG , Y 3 Al 5 O 12 ) is a synthetic crystalline material of the garnet group. It is a cubic yttrium aluminium oxide phase, with other examples being YAlO 3 (YAP [ 2 ] ) in a hexagonal or an orthorhombic, perovskite -like form, and the monoclinic Y 4 Al 2 O 9 (YAM [ 3 ] ). [ 4 ]
Due to its b... | https://en.wikipedia.org/wiki/Y3Al5O12 |
Yambo is a computer software package for studying many-body theory aspects of solids and molecule systems. [ 1 ] [ 2 ] It calculates the excited state properties of physical systems from first principles , e.g., from quantum mechanics law without the use of empirical data. It is an open-source software released under t... | https://en.wikipedia.org/wiki/YAMBO_code |
Yet Another Scientific Artificial Reality Application ( YASARA ) is a computer program for molecular visualising, modelling, and dynamics. It has many scientific uses, as expressed by the large number of scientific articles mentioning the software. [ 1 ] The free version of YASARA [ 2 ] is well suited to bioinformatics... | https://en.wikipedia.org/wiki/YASARA |
Yttrium barium copper oxide ( YBCO ) is a family of crystalline chemical compounds that display high-temperature superconductivity ; it includes the first material ever discovered to become superconducting above the boiling point of liquid nitrogen [77 K (−196.2 °C; −321.1 °F)] at about 93 K (−180.2 °C; −292.3 °F). [ 3... | https://en.wikipedia.org/wiki/YBa2Cu3O7 |
Yttrium(III) bromide is an inorganic compound with the chemical formula YBr 3 . It is a white solid. Anhydrous yttrium(III) bromide can be produced by reacting yttrium oxide or yttrium(III) bromide hydrate and ammonium bromide . The reaction proceeds via the intermediate (NH 4 ) 3 YBr 6 . [ 3 ] Another method is to rea... | https://en.wikipedia.org/wiki/YBr3 |
Yttrium(III) chloride is an inorganic compound of yttrium and chloride . It exists in two forms, the hydrate (YCl 3 (H 2 O) 6 ) and an anhydrous form (YCl 3 ). Both are colourless salts that are highly soluble in water and deliquescent .
Solid YCl 3 adopts a cubic [ citation needed ] structure with close-packed chlor... | https://en.wikipedia.org/wiki/YCl3 |
YDS is a scheduling algorithm for dynamic speed scaling processors which minimizes the total energy consumption. It was named after and developed by Yao et al. [ 1 ] There is both an online and an offline version of the algorithm.
Definitions:
The algorithm then works as follows:
In other terms it's a recursive algo... | https://en.wikipedia.org/wiki/YDS_algorithm |
Yttrium(III) fluoride is an inorganic chemical compound with the chemical formula Y F 3 . It is not known naturally in 'pure' form. The fluoride minerals containing essential yttrium include tveitite-(Y) (Y,Na) 6 Ca 6 Ca 6 F 42 and gagarinite-(Y) NaCaY(F,Cl) 6 . Sometimes mineral fluorite contains admixtures of yttrium... | https://en.wikipedia.org/wiki/YF3 |
Yttrium hydride is a compound of hydrogen and yttrium . It is considered to be a part of the class of rare-earth metal hydrides . It exists in several forms, the most common being a metallic compound with formula YH 2 . YH 2 has a face-centred cubic structure, and is a metallic compound . Under great pressure, extra h... | https://en.wikipedia.org/wiki/YH2 |
Yttrium hydride is a compound of hydrogen and yttrium . It is considered to be a part of the class of rare-earth metal hydrides . It exists in several forms, the most common being a metallic compound with formula YH 2 . YH 2 has a face-centred cubic structure, and is a metallic compound . Under great pressure, extra h... | https://en.wikipedia.org/wiki/YH3 |
The Yarkovsky–O'Keefe–Radzievskii–Paddack effect , or YORP effect for short, changes the rotation state of a small astronomical body – that is, the body's spin rate and the obliquity of its pole (s) – due to the scattering of solar radiation off its surface and the emission of its own thermal radiation .
The YORP effe... | https://en.wikipedia.org/wiki/YORP_effect |
83719
66090
ENSG00000090238
ENSMUSG00000042675
P61236
P61237
NM_001145524 NM_031477
NM_025347 NM_026875
NP_001138996 NP_113665
NP_001366225 NP_001366226
Yippee-like 3 (Drosophila) is a protein that in humans is encoded by the YPEL3 gene . [ 5 ] [ 6 ] YPEL3 has growth inhibitory effects in normal and tumor cel... | https://en.wikipedia.org/wiki/YPEL3 |
Yttrium phosphate , YPO 4 , is the phosphate salt of yttrium . [ 1 ] It occurs in nature as minerals xenotime [ 2 ] and weinschenkite. [ 3 ]
Yttrium phosphate can be obtained by reacting yttrium chloride and sodium phosphate , or by reacting yttrium nitrate and diammonium hydrogen phosphate in solution: [ 2 ]
Yttrium... | https://en.wikipedia.org/wiki/YPO4 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.