pp semi indef About Latin IPA Latin gamma other uses Unreferenced date December 2009 Wiktionary Greek Alphabet letter gammaGamma uppercase , lowercase Lang el is the third letter of the Greek ... Gamma include the Roman C and G and the Cyrillic letters Ge Cyrillic Ge and Ge with upturn Ghe . Uses Greek In isolation In Greek language Modern Greek , gamma represents either a voiced velar ... a voiced velar stop IPA . Before velars Before other velars , , k, kh, ks , gamma represents a velar nasal IPA in Modern as well as Ancient Greek. A double gamma represents the sequence ... Phonetic Alphabet , lowercase gamma IPA represents the voiced velar fricative . A lowercase gamma that lies above the baseline typography baseline rather than crossing it IPA represents the close mid back unrounded vowel . Math and science Lower case The lower case letter math gamma math is used as a symbol for gamma radiation in nuclear physics surface energy in materials science the Lorentz ... coefficient in thermodynamics The gyromagnetic ratio in electromagnetism gamma waves gamma oscillation in neuroscience gamma motoneurons Gamma Motor Neurons in neuroscience Gamma is a non International ... of an image is increased in gamma correction The Euler Mascheroni constant In mechanical engineering, specific weight The shear rate of a fluid is represented by a lower case gamma with a dot above it math dot gamma math Austenite also known as iron , a metallic non magnetic allotrope or solid solution of iron. Upper case The upper case letter math Gamma math is used as a symbol for In mathematics, the gamma function usually written as math Gamma math function is an extension of the factorial to complex number s In probability theory and statistics, the gamma distribution is a two parameter ... references in HTML HTML entities for uppercase and lowercase gamma are code & Gamma code and code & gamma code . Unicode class wikitable unicode description character Unicode HTML colspan 4 ... more details
about a physics experiment other uses Gamma disambiguation GAMMA Experiment is a study of a Primary cosmic ray energy spectra and elemental composition abundances of the elements at energies 10 sup 15 sup 10 sup 18 sup Electronvolt eV so called knee energy region ref cite journal author A.P. Garyaka, R.M. Martirosov, S.V. Ter Antonyan, A.D. Erlykin, N.M. Nikolskaya, Y.A. Gallant, L.W. Jones, J. Procureur year 2008 title All particle primary energy spectrum in the 3 200 PeV energy range journal Journal of Physics G Nuclear and Particle Physics volume 35 issue 11 page 115201 doi 10.1088 0954 3899 35 11 115201 id arXiv 0808.1421 ref ref name Samo cite journal author A.P. Garyaka, R.M. Martirosov, S.V. Ter Antonyan, N. Nikolskaya, Y.A. Gallant, L. Jones, J. Procureur year 2007 title Rigidity dependent cosmic ray energy spectra in the knee region obtained with the GAMMA experiment journal Astroparticle Physics journal Astroparticle Physics volume 28 issue 2 page 169 doi 10.1016 j.astropartphys.2007.04.004 id arXiv 0704.3200 ref ref cite journal author S.V. Ter Antonyan year 2007 title Mutually compensative pseudo solutions of primary energy spectra in the knee region journal Astroparticle Physics journal Astroparticle Physics volume 28 issue 3 page 321 doi 10.1016 j.astropartphys.2007.06.004 id arXiv 0706.4087 ref b Galactic diffuse gamma ray intensity at energies 10 sup 14 sup 10 sup 15 sup eV ref cite journal author Romen M. Martirosov, Samvel V. Ter Antonyan, Anatoly D. Erlykin ... diffuse gamma ray flux at the energy about 175 TeV journal Proceedings of 31 st International Cosmic ... d Hard jets production at energies 10 sup 16 sup eV by the muon multi core shower events. Image Gamma Experiment diagrammatic layout.png 400px thumb GAMMA Experiment. GAMMA experiment is deployed on the South .... The elevation of the GAMMA facility is 3200 m above sea level, which corresponds to about 700 ... of shower muons with energy greater than 5 GeV. The results of GAMMA experiment for 2005 2007 ... more details
About the stochastic process the astrophysical nucleosynthesis process Gamma process astrophysics Expert subject Mathematics date November 2008 Context date March 2010 A Gamma process is a L vy process with Statistical independence independent Gamma distribution Gamma increments. Often written as math Gamma t gamma, lambda math , it is a pure jump increasing Levy process with intensity measure math nu x gamma x 1 exp lambda x math , for positive math x math . Thus jumps whose size lies in the interval math x,x dx math occur as a Poisson process with intensity math nu x dx math .The parameter math gamma math controls the rate of jump arrivals and the scaling parameter math lambda math inversely controls the jump size. The marginal distribution of a Gamma process at time math t math , is a Gamma distribution with mean math gamma t lambda math and variance math gamma t lambda 2 math . The Gamma process is sometimes also parameterised in terms of the mean math mu math and variance math v math per unit time, which is equivalent to math gamma mu 2 v math and math lambda mu v math . Some basic properties of the Gamma process are math alpha Gamma t gamma, lambda Gamma t gamma, lambda alpha , math scaling math Gamma t gamma 1, lambda Gamma t gamma 2, lambda Gamma t gamma 1 gamma 2, lambda , math adding independent processes math mathbb E X t n lambda n Gammagamma t n Gammagamma t , n geq 0 math moments , where math Gamma z math is the Gamma function . math mathbb E Big exp theta X t Big 1 theta lambda gamma t , theta lambda math moment generating function math operatorname Corr X s, X t sqrt s t , s t math , for any Gamma process math X t math The Gamma process is used as the distribution for random time change in the variance gamma process . References L vy Processes and Stochastic Calculus by David Applebaum, CUP 2004, ISBN 0 521 83263 2. Category Stochastic processes probability stub ... more details
Gamma Andromeda may refer to Gamma Andromeda planet , a star system written in Foundation novel Foundation by Isaac Asimov . Gamma Andromedae , a four star system in the constellation Andromeda constellation Andromeda . disambig ... more details
In mathematical physics , the gamma matrices , math gamma 0, gamma 1, gamma 2, gamma 3 math , also known ... to define higher dimensional Gamma matrices . When interpreted as the matrices of the action ... covariance and contravariance contravariant gamma matrices are math gamma 0 begin pmatrix 1 & 0 & 0 & 0 0 & 1 & 0 & 0 0 & 0 & 1 & 0 0 & 0 & 0 & 1 end pmatrix , quad gamma 1 begin pmatrix 0 & 0 & 0 & 1 0 & 0 & 1 & 0 0 & 1 & 0 & 0 1 & 0 & 0 & 0 end pmatrix math math gamma 2 begin pmatrix 0 & 0 & 0 & i 0 & 0 & i & 0 0 & i & 0 & 0 i & 0 & 0 & 0 end pmatrix , quad gamma 3 begin pmatrix 0 & 0 & 1 & 0 0 & 0 & 0 & 1 1 & 0 & 0 & 0 0 & 1 & 0 & 0 end pmatrix . math Analogue sets of gamma matrices can be defined in any dimension and signature of the metric. For example the Pauli matrices are a set of gamma ... property for the gamma matrices to generate a Clifford algebra is the anticommutator anticommutation relation math displaystyle gamma mu, gamma nu gamma mu gamma nu gamma nu gamma mu 2 eta mu ... the numerical values used in the gamma matrices. Covariant gamma matrices are defined by math displaystyle gamma mu eta mu nu gamma nu left gamma 0, gamma 1, gamma 2, gamma 3 right , math and Einstein ... a change in the defining equation math displaystyle gamma mu, gamma nu 2 eta mu nu I math or a multiplication of all gamma matrices by math i math , which of course changes their hermiticity properties detailed below. Under the alternative sign convention for the metric the covariant gamma matrices are then defined by math displaystyle gamma mu eta mu nu gamma nu left gamma 0, gamma 1, gamma 2, gamma 3 right , math . Physical structure The 4 tuple math displaystyle gamma mu gamma 0, gamma 1, gamma 2, gamma 3 gamma 0 e 0 gamma 1 e 1 gamma 2 e 2 gamma 3 e 3 math is often loosely described as a 4 .... Instead math displaystyle gamma mu math is more appropriately seen as a mapping operator ... algebra representation. This is symbolised by the useful Feynman slash notation , math a gamma ... more details
Gamma is the third letter of the Greek alphabet. Gamma may also refer to Science and mathematics General Gamma wave , a type of brain wave Latin gamma IPA , used as an IPA symbol for voiced velar fricative , and in the alphabets of African languages Tropical Storm Gamma 2005 , an Atlantic tropical storm GAMMA , an extensive air shower array in Armenia Lower case, Gamma correction , a property of images and video displays Gamma ray , also gamma radiation, an electromagnetic ray Adiabatic index ... gamma Hydroxybutyric acid , a narcotic GHB Lindane or gamma hexachlorocyclohexane, an insecticide ... shear strain or surface tension in engineering Gamma solar eclipse denotes how central the moon shadow cone hits earth Upper case, Gamma distribution , a probability distribution function Gamma function ... Reflection coefficient in electrical engineering Gamma finance , in Quantitative Finance, a second ... s molecular symmetry symmetry elements Technology Gamma software, a stage in the Software release life cycle Release candidate software release life cycle Gamma correction , in video, graphics, color spaces, and photographic imaging Elias gamma coding , in computer science, encoding, compression GM Gamma platform , a subcompact automobile platform by General Motors Bristol Siddeley Gamma , a family ... Gamma et al. Automotive Suzuki RG250 Gamma , a two stroke motorcycle Popular culture Gamma agency , a French photo agency Gamma band , a rock band E 102 Gamma, one of the List of recurring characters ... of video games Gamma Akutabi , a fictional character from the manga Zombiepowder. GAMMA, an acronym for the Gay and Married Men Association Gamma AI, AKA Gary, a character of the popular web series Red vs Blue Gamma Metroids, an evolution of the Metroid species from the game Metroid II Return of Samus See also Gama disambiguation Disambig ar da Gamma de Gamma Begriffskl rung es Gama eu Gamma fr Gamma homonymie ko it Gamma he ku Gamma cudakirin lv Gamma noz mju atdal ana ... more details
italictitle Taxobox name Gamma image image width 250px image caption regnum Animal ia phylum Arthropod a classis Insect a ordo Hymenoptera familia Vespid ae subfamilia Eumeninae genus Gamma subdivision ranks Species subdivision Gamma bogotense Gamma bolivianum Gamma gulielmi Gamma iuquipa Gamma saussurei Gamma ventricosum Gamma is a small neotropical , primarily northern andean genus of potter wasp s currently containing 6 recognized species. References Giordani Soika, A. 1990. Revisione degli Eumenidi neotropicali appartenenti ai generi Pachymenes Sauss., Santamenes n. gen., Brachymenes G. S., Pseudacaromenes G. S., Stenosigma G. S. e Gamma Zav. Hymenoptera . Boll. Mus. Civ. Stor. Nat. Venezia 39 71 172. Cooper, M. 1999b. New species of Gamma Zavattari Hym., Vespidae, Eumeninae . Entomol. Mon. Mag. 135 183 186. DEFAULTSORT Gamma Genus Category Biological pest control agents Category Potter wasps potter wasp stub ru Gamma ... more details
The Bayer designation Gamma Caeli Cae, Caeli is shared by two star system s, in the constellation Caelum Gamma Caeli sup 1 sup Caeli Gamma Caeli sup 2 sup Caeli They are separated by 0.22 on the sky. SIA astronomical objects Category Bayer objects Caeli, Gamma Category Caelum constellation ko ... more details
Image Electrophoresis.png thumb Schematic representation of a protein electrophoresis gel Gamma globulins are a class of globulin s, identified by their position after serum protein electrophoresis . The most significant gamma globulins are antibody immunoglobulins Igs , more commonly known as antibodies, although some Igs are not gamma globulins, and some gamma globulins are not Igs. Use as medical treatment See Intravenous immunoglobulin Gamma globulin injections are usually given in an attempt to temporarily boost a patient s immunity against disease. Injections are most commonly used on patients who have been exposed to hepatitis A or measles , or to make a kidney donor and recipient compatible regardless of blood type of tissue match. Injections are also used to boost immunity in patients who cannot produce gamma globulins naturally because of an immune deficiency , such as X linked ... than they were previously, and injections of gamma globulin previously recommended for travelers have largely been replaced by the use of hepatitis A vaccine . Gamma globulin infusions are also used ... in which the platelets are being attacked by antibodies, leading to seriously low platelet counts. Gamma ... to survive and function. A recent clinical trial of gamma globulin in Chronic Fatigue Syndrome patients ... remains uncertain. Another theory on how gamma globulin administration works in autoimmune disease is by overloading the mechanisms which degrade gamma globulins. Overloading the degradation mechanism causes the harmful gamma globulins to have a much shorter halflife in sera. IVIG may be used in Kawasaki disease Treatment Kawasaki disease . Kidney Transplant Intravenous Gamma globulin was FDA ... . A deficiency is known as hypogammaglobulinemia . A disease of gamma globulins ... reflist 30em External links MeshName gamma Globulins Globulins DEFAULTSORT Gamma Globulin Category Proteins protein stub immunology stub ar de Gammaglobulin es Gamma globulina fi ... more details
Infobox Album See Wikipedia WikiProject Albums Name The Best of Gamma Type greatest Artist Gamma band Gamma Cover Released 1992 Recorded 1978 1983 Genre Hard Rock Length 73 29 Label GNP Records Producer Reviews Allmusic Rating 4.5 5 Allmusic class album id r73020 pure url yes Last album This album Next album The Best of Gamma is a compilation of music from the first three Gamma band Gamma albums. Track listing Mean Streak Alcivar, Montrose, Pattison 4 50 Four Horsemen Montrose, Pattison 4 48 Dirty City Montrose, Pattison 4 04 Voyager Montrose, Pattison 5 23 Stranger Froom, Stahl 3 00 Condition Yellow Carmassi, Froom, Montrose 4 08 No Way Out Froom, Montrose, Stahl 4 05 Third Degree Froom, Montrose, Stahl 3 47 Thunder & Lightning Montrose, Pattison 4 37 I m Alive Clint Ballard, Jr. song I m Alive Clint Ballard, Jr. 3 18 Razor King Montrose, Pattison 5 53 Modern Girl Froom, Montrose 3 35 Right the First Time Froom, Montrose, Stahl 3 47 Wish I Was Mickey Newbury 5 16 What s Gone Is Gone Froom, Montrose, Jerry Stahl 5 30 Fight To The Finish Alcivar, Montrose 6 25 Gamma 1 1979 Gamma 2 1980 Gamma 3 1982 Personnel Ronnie Montrose Guitar Davey Pattison Vocals Jim Alcivar Keyboards Gamma 1 & 2 Alan Fitzgerald Bass Gamma 1 Skip Gillette Drums Gamma 1 Denny Carmassi Drums Gamma 2 & 3 Glenn Letsch Bass Gamma 2 & 3 Mitchell Froom Keyboards Gamma 3 Production Produced by Ken Scott , Gary Lyons , Ronnie Montrose & Engineered by Ken Scott , Gary Lyons , Jim Gaines References Gamma The Best of Gamma liner notes GNP Records 1992 Allmusic class album id r73020 pure url yes All Music Guide DEFAULTSORT Best of Gamma Category 1992 compilation albums Category Greatest hits albums Category GNP Records albums ... more details
Infobox Album See Wikipedia WikiProject Albums Name Gamma 1 Type studio Artist Gamma band Gamma Cover Gamma 1.jpg Length 37 10 Released 1979 Producer Ken Scott Genre Hard rock Label Elektra Records Reviews Allmusic Rating 3 5 Allmusic class album id r66746 pure url yes This album Gamma 1 br 1979 Next album Gamma 2 br 1980 Misc Extra chronology Artist Ronnie Montrose Last album Open Fire Ronnie Montrose album Open Fire br 1978 This album Gamma 1 1978 Next album Gamma 2 br 1980 Gamma 1 , released 1979 , was Gamma band Gamma s debut album. It reached 131 on the Billboard Album charts, totalling 17 weeks on the survey. I m Alive reached 60 on Billboard s Singles charts. Track listing Thunder & Lightning Montrose, Pattison 4 37 I m Alive Clint Ballard, Jr. song I m Alive Clint Ballard, Jr. 3 18 Razor King Montrose, Pattison 5 53 No Tears Pattison 4 53 Solar Heat Montrose 3 09 Ready For Action Montrose 3 39 Wish I Was Mickey Newbury 5 16 Fight To The Finish Alcivar, Montrose 6 25 Personnel Davey Pattison Vocals Ronnie Montrose Guitar Jim Alcivar Keyboards Alan Fitzgerald Bass Skip Gillette Drums Production Produced and engineered by Ken Scott Notes I m Alive is a cover of The Hollies I m Alive The Hollies song song from 1965. References Gamma 1 liner notes Elektra Records 1978 Allmusic class album id r1872322 pure url yes All Music Guide Category Gamma albums Category 1979 albums Category Debut albums Category albums produced by Ken Scott Category Elektra Records albums 1970s rock album stub ... more details
Infobox Album See Wikipedia WikiProject Albums Name Gamma 3 Type studio Artist Gamma band Gamma Cover Gamma 3.jpg Length 38 02 Released 1982 Genre Rock music Rock Label Elektra Records Producer Ronnie Montrose Reviews Allmusic Rating 3 5 Allmusic class album id r66748 pure url yes Last album Gamma 2 br 1980 This album Gamma 3 br 1982 Next album Gamma 4 br 2000 Misc Extra chronology Artist Ronnie Montrose Last album Gamma 2 br 1980 This album Gamma 3 br 1982 Next album Territory Ronnie Montrose album Territory br 1986 Gamma band Gamma s third album Allmusic class album id r66748 pure url yes . Track listing What s Gone Is Gone Froom, Montrose, Jerry Stahl 5 30 Right the First Time Froom, Montrose, Stahl 3 47 Moving Violation Carmassi, Froom, Montrose, Stahl 3 36 Mobile Devotion Froom, Montrose 6 34 Stranger Froom, Stahl 3 00 Condition Yellow Carmassi, Froom, Montrose 4 08 Modern Girl Froom, Montrose 3 35 No Way Out Froom, Montrose, Stahl 4 05 Third Degree Froom, Montrose, Stahl 3 47 Personnel Davey Pattison Vocals Ronnie Montrose Guitar Mitchell Froom Keyboards Glenn Letsch Bass Denny Carmassi Drums Production Produced by Ronnie Montrose Engineered by Jim Gaines References Gamma 3 liner notes Elektra Records 1982 Allmusic class album id r66748 pure url yes All Music Guide Category Gamma albums Category 1982 albums Category Elektra Records albums 1980s hard rock album stub ... more details
Infobox Space telescope name Gamma image caption organization Russian Federal Space Agency RKA major contractors alt names nssdc id location Earth orbit orbit type height 375 km ref name gamma period velocity accel gravity launch date 11 July 1990 ref name gamma launch location launch vehicle mission length 2 years ref name gamma deorbit date wavelength Gamma ray mass website style diameter area focal length instrument 1 name Gamma 1 telescope instrument 1 characteristics 50 MeV to 6 GeV ref name gamma instrument 2 name Disk M telescope instrument 2 characteristics 20 keV to 5 MeV ref name gamma instrument 3 name Pulsar X 2 telescope instrument 3 characteristics 2 25 keV ref name gamma stats ref ref name gamma cite web url http heasarc.gsfc.nasa.gov docs heasarc missions gamma.html title The Gamma Satellite publisher NASA accessdate 2008 03 01 ref Gamma was a Soviet gamma ray telescope . It was launched on 11 July 1990 into an orbit around Earth with a height ... Soviet France French project. ref name gamma Background The Gamma 1 telescope was the main telescope ... the pointing position accuracy of the Gamma 1 telescope to 2 arcminute s by tracking stars up to an apparent ... to a spark chamber , for most of the mission the resolution was around 10 degrees. ref name gamma The telescope was conceived in 1965, as part of a Cloud Space Station . Work on Gamma began in 1972 ... craft gamma.htm title Gamma publisher Astronautix.com accessdate 2008 03 02 ref Operation The Disk ... after the mission was launched. ref name gamma Finally, the Pulsar X 2 telescope had 30 arcminute ... name gamma Observations included studies of the Vela Pulsar , the Galactic Centre , Cygnus X 1 , Hercules ... name gamma References Reflist 1 External links http www.daviddarling.info encyclopedia G Gamma orbiting telescope.html Gamma on the Internet Encyclopedia of Science http www.astronautix.com craft gamma.htm Gamma at Astronautix.com Soyuz variants Category Gamma ray telescopes Category Space telescopes ... more details
Infobox Album See Wikipedia WikiProject Albums Name Gamma 2 Type studio Artist Gamma band Gamma Cover Gamma 2.jpg Length 36 50 Released 1980 Genre Rock music Rock Label Elektra Records Producer Gary Lyons, Ronnie Montrose Reviews Allmusic Rating 3 5 Allmusic class album id r66747 pure url yes Last album Gamma 1 br 1979 This album Gamma 2 br 1980 Next album Gamma 3 br 1982 Misc Extra chronology Artist Ronnie Montrose Last album Gamma 1 br 1979 This album Gamma 2 br 1980 Next album Gamma 3 br 1982 On Gamma band Gamma s second disc, Ronnie Montrose keeps his streak of not having the same personnel on two albums in a row, changing the line up once again. Davey Pattison vocals , Ronnie Montrose guitar , and Jim Alcivar synthesizer remain from Gamma 1 . Glenn Letsch replaces Alan Fitzgerald on bass and old Montrose band Montrose bandmate Denny Carmassi replaces Skip Gillette on drums. Track listing Mean Streak Alcivar, Montrose, Pattison 4 50 Four Horsemen Montrose, Pattison 4 48 Dirty City Montrose, Pattison 4 04 Voyager Montrose, Pattison 5 23 Something in the Air song Something In The Air John Keen John Speedy Keen 3 17 Cat on a Leash Montrose, Jerry Stahl 4 03 Skin and Bone Montrose, Stahl 4 48 Mayday Alcivar, Montrose 5 37 Personnel Davey Pattison Lead Vocals Ronnie Montrose Guitar Jim Alcivar Keyboards Glenn Letsch Bass Denny Carmassi Drums Production Produced by Gary Lyons and Ronnie Montrose Engineered by Gary Lyons References Gamma 2 liner notes Elektra Records 1980 Allmusic class album id r66747 pure url yes All Music Guide Trivia The cover of Gamma 2 bears an uncanny resemblance to the cover of Shark Sandwich in the 1984 film, This Is Spinal Tap . Category Gamma albums Category 1980 albums Category Elektra Records albums 1980s hard rock album stub ... more details
Unreferenced date June 2009 Notability Organizations date June 2009 Producciones Animadas Gamma S.A. Gamma Animated Productions PLC, better known as Gamma Productions was a Mexican animation studio that served as an animation house for cartoons produced by Jay Ward and Total Television . Founded in 1959 as Val Mar Studios, it was set up to do animation production for Rocky and His Friends . Harvey Siegel served as a supervisor for most of the studio s output. Gamma shut down in 1968. Their final animation work was Total Television s The Beagles cartoon The Beagles . Category Animation studios Category 1959 establishments Category 1968 disestablishments ... more details
Starbox short name Gamma Hydrae epoch J2000.0 constell Hydra constellation Hydra ra 13 sup h sup 18 sup m sup 55.3 sup s sup dec &minus 23 10 18 spectral G8III appmag v 2.99 dist ly 132 dist pc 40.49 names 46 Hydrae, Henry Draper catalogue HD 115659, Harvard Revised catalogue HR 5020, SAO 181543, FK5 495, NSV 6180, Bonner Durchmusterung BD 22 3554 , Hipparcos catalogue HIP 64962 Gamma Hydrae Hya, Hydrae is a Stellar classification Class G8 , third magnitude star in the constellation Hydra constellation Hydra . Gamma Hydrae is a yellow giant, located about 130 light year s from Earth . Gamma Hydrae in fiction The starship Enterprise visits the planet Gamma Hydrae IV in the Star Trek original series episode The Deadly Years . A region of space named designated Section 10 of Gamma Hydrae lies within the Klingon Neutral Zone in the Kobayashi Maru scenario depicted in Star Trek II . References cite web title HD 115659 Variable Star work SIMBAD Astronomical Database url http simbad.u strasbg.fr sim id.pl?protocol html&Ident gamma hydrae&NbIdent 1&Radius 10&Radius.unit arcmin&CooFrame FK5&CooEpoch 2000&CooEqui 2000&output.max all&o.catall on&output.mesdisp N&Bibyear1 1983&Bibyear2 2005&Frame1 FK5&Frame2 FK4&Frame3 G&Equi1 2000.0&Equi2 1950.0&Equi3 2000.0&Epoch1 2000.0&Epoch2 1950.0&Epoch3 2000.0 accessdate 2006 10 28 External links Stars of Hydra Category Bayer objects Hydrae, Gamma Category Flamsteed objects Hydrae, 46 Category Hydra constellation Category G type giants giant star stub es Gamma Hydrae fa fr Gamma Hydrae id Gamma Hydrae ja pt Gamma Hydrae ... more details
For the Gamma function of ordinals Veblen function Image Gamma plot.svg thumb right 325px The Gamma function along part of the real axis In mathematics , the Gamma function represented by the capital Greek alphabet Greek letter gamma is an extension of the factorial function mathematics function ... integer math Gamma n n 1 , math Although the Gamma function is defined for all complex numbers ... for complex numbers with a positive real part math Gamma z int 0 infty t z 1 e t , rm d t ,. math This integral ... integers where the function has simple poles , yielding the meromorphic function we call the Gamma function. The Gamma function is a component in various probability distribution functions, and as such it is applicable ... function to non integer values, but is there a formula that describes the resulting curve? The gamma ... of a function limit s from calculus . A good solution to this is the gamma function. There are infinitely ... be drawn through any set of isolated points. The gamma function is the most useful solution in practice ... convex , uniquely determine f for positive, real inputs. From there, the gamma function ... The extended version of the Gamma function in the complex plane The notation math Gamma z math is due ... z 0 , then the integral math Gamma z int 0 infty t z 1 e t , rm d t math absolute convergence converges absolutely . Using integration by parts , one can show that math Gamma z 1 z , Gamma ... 1 we get math Gamma 1 int 0 infty e t , rm d t 1 ,. qquad text 2 math Combining these two results ... case of the Gamma function math Gamma n n 1 , math for all positive integers n . Image GammaAbsSmallPlot.png thumb right The absolute value of the Gamma function on the complex plane ... nowiki nowiki . It is this extended version that is commonly referred to as the gamma function. Alternative definitions The following infinite product definitions for the Gamma function, due to Leonhard ... z , except the non positive integers math begin align Gamma z & lim n to infty frac n n z z z 1 cdots ... more details
Infobox scientist name Erich Gamma image image size caption birth date Birth year and age 1961 birth place Z rich residence citizenship Switzerland Swiss ethnicity field Software engineering work institution alma mater University of Zurich doctoral advisor doctoral students known for Design Patterns , JUnit , Eclipse software Eclipse prizes Erich Gamma born 1961 in Z rich is Switzerland Swiss computer scientist and co author of the influential Software engineering textbook, Design Patterns Design Patterns Elements of Reusable Object Oriented Software . He co wrote the JUnit software testing framework with Kent Beck and led the design of the Eclipse computing Eclipse platform s Java programming language Java Development Tools http www.eclipse.org jdt index.php JDT . Erich is currently working on the IBM Rational http jazz.net about Jazz project . Interviews and Presentations In an interview in 2005, Erich Gamma explained I think patterns as a whole can help people learn object oriented thinking how you can leverage polymorphism, design for composition, delegation, balance responsibilities ... www.artima.com lejava articles reuse.html Erich Gamma on Flexibility and Reuse http www.artima.com lejava ... erich gamma Erich Gamma on Patterns, JUnit, Eclipse and Jazz at Software Engineering Radio Video http www.infoq.com presentations Eclipse Lessons Erich Gamma Keynote by Erich Gamma from QCon London 2008 http www.infoq.com interviews gamma jazz eclipse junit design patterns Interview with Erich Gamma from QCon London 2008 See also Portal box Software Testing Java External links OL author OL1515521A References references Java Sun Persondata Metadata see Wikipedia Persondata . NAME Gamma, Erich ... DEFAULTSORT Gamma, Erich Category 1961 births Category Swiss writers Category IBM employees ... stub sdr de Erich Gamma es Erich Gamma fr Erich Gamma it Erich Gamma he ja pl Erich Gamma pt Erich Gamma ru , sv Erich Gamma tr Erich Gamma ... more details
Gamma diversity diversity is a measure of biodiversity . It refers to the total species richness over a large area or region. It is the product of the diversity of component ecosystems and the diversity between component ecosystems. According to Whittaker 1972 , gamma diversity is the richness in species of a range of habitats in a geographic area e.g.,a landscape, an island and it is consequent on the alpha diversity of the individual communities and the range of differentiation or beta diversity among them. Like alpha diversity, it is a quality which simply has magnitude, not direction and can be represented by a single number a scalar . Gamma diversity can be expressed in terms of the species richness of component communities as follows math gamma S 1 S 2 c math where, S sub 1 sub the total number of species recorded in the first community, S sub 2 sub the total number of species recorded in the second community, and c the number of species common to both communities. The internal relationship between alpha, beta and gamma diversity can be represented as math beta gamma alpha math See also Diversity index Alpha diversity Beta diversity Global biodiversity References reflist refbegin Whittaker, R. H. 1972 . Evolution and Measurement of Species Diversity . Taxon , 21 2 3 , 213 251. Henderson, P.A. 2003 . Practical Methods in Ecology . Blackwell Publishing, United Kingdom. refend Category Measurement of biodiversity ecology stub de Gamma Diversit t ... more details
Probability distribution name Gamma type density pdf image Image Gamma distribution pdf.svg 325px Probability density plots of gamma distributions cdf image Image Gamma distribution cdf.svg 325px Cumulative distribution plots of gamma distributions parameters math k 0 , math shape parameter shape br ... x theta right Gamma k , theta k , math cdf math frac gamma k, x theta Gamma k math mean math k theta ... ln Gamma k math br math 1 k psi k math mgf math 1 theta ,t k text for t 1 theta , math char math 1 theta ,i ,t k , math In probability theory and statistics , the gamma distribution is a two parameter ... a mean of which is equivalent to a rate parameter of sup &minus 1 sup . The gamma distribution ... time until death is a random variable that is frequently modeled with a gamma distribution. ref See ... X that is gamma distributed with scale and shape k is denoted math X sim Gamma k, theta text or X sim textrm Gamma k, theta . , math Probability density function The probability density function of the gamma distribution can be expressed in terms of the gamma function parameterized in terms ... defining the probability density function of a gamma distributed random variable x is math f x k, theta x k 1 frac e x theta theta k , Gamma k text for x geq 0 text and k, theta 0. , math This parameterization is used in the infobox and the plots. Alternatively, the gamma distribution can be parameterized ... , called a rate parameter math g x alpha, beta frac beta alpha Gamma alpha x alpha 1 e beta x text for x geq 0. , math If is a positive integer, then math Gamma alpha alpha 1 , math Both parametrizations are common because either can be more convenient depending on the situation. Image Gamma PDF 3D.png thumb right 320px Illustration of the Gamma PDF for parameter values over k and x with set ... commons.wikimedia.org wiki File Gamma PDF 3D by k.png as well as by k http commons.wikimedia.org wiki File Gamma PDF 3D by Theta.png and x . http commons.wikimedia.org wiki File Gamma PDF 3D ... more details
About the term s use in physics File Gamma Decay.svg thumb Illustration of an emission of a gamma ray &gamma from an atomic nucleus Gamma radiation , also known as gamma rays denoted as gamma &gamma , is electromagnetic .... A classical gamma ray source is a type of radioactive decay called gamma decay where an excited nucleus emits a gamma ray almost immediately on formation. However, gamma decay may also describe isomeric transition which involves an inhibited gamma decay with a relatively much longer half life. Nuclear physics Gamma rays have frequencies above 10 Hertz exahertz 10 sup 18 sup Hz , and therefore have ... of an atom . Gamma rays from radioactive decay commonly have energies of a few hundred keV, and almost ... 318321 ref There is effectively no lower limit to gamma energy though they are sometimes classed as X rays if their frequencies are lower than 10 sup 19 sup Hz . Because gamma rays are a form of ionizing ... gamma radiation in 1900, while studying radiation emitted from radium . ref cite book last L Annunziata ... Rutherford named Villard s distinct new radiation gamma rays. The distinction between X rays and gamma ... tube s had a longer wavelength than the radiation emitted by radioactive atomic nucleus nuclei gamma ...&pg PA12 isbn 0750305916 ref Older literature distinguished between X and gamma radiation on the basis ... m, defined as gamma rays. ref cite book last Charles Hodgman, Ed. title CRC Handbook of Chemistry ... gamma ray emitters were discovered, the wavelength bands largely overlapped. The two types of radiation ..., while gamma rays are emitted by the nucleus atomic structure nucleus . ref name Dendy ref ... conventions and overlap in terminology File Moon gamma rays egret instrument cgro.jpg thumb right The Moon as seen by the Compton Gamma Ray Observatory , in gamma rays of greater than 20 MeV. These are produced ... docs cgro epo news gammoon.html In the past, the distinction between X rays and gamma rays was based on energy or equivalently frequency or wavelength , with gamma rays being considered a higher ... more details
no footnotes date December 2010 Image Gammaspektrum Uranerz.jpg thumb The gamma ray spectrum of natural ... decay chain . Gamma ray spectroscopy is the quantitative study of the energy spectra of gamma ray sources, both nuclear laboratory, geochemical, and astrophysical. Gamma rays are the highest .... Because of their high energy, gamma ray photons are generally counted individually, whereas ... waves consisting of many low energy photons. While a Geiger counter or Gamma Probe determine only the count rate i.e. the number of gamma rays interacting in the detector in one second , a gamma ray spectrometer also determines the energies of the gamma ray s photons emitted by the source. Radioactive nuclei radionuclides commonly emit gamma rays in the energy range from a few keV to 10 MeV, corresponding ... produce gamma ray line spectra i.e., many photon s emitted at discrete energies , whereas much ... particle physics. The boundary between gamma rays and X rays is somewhat blurred, as X rays ... to over 100 keV, whereas the lowest energy emissions of nuclei are typically termed gamma rays, even though their energies may be below 20 keV. Most radioactive sources produce gamma rays of various energies and intensities. When these emissions are collected and analyzed with a gamma ray spectroscopy system, a gamma ray energy spectrum can be produced. A detailed analysis of this spectrum is typically used to determine the identity and quantity of gamma emitters present in the source. The gamma spectrum is characteristic of the gamma emitting nuclide s contained in the source, just as in optical .... The equipment used in gamma spectroscopy includes an energy sensitive radiation detector ... s and high purity germanium detectors. System components A gamma spectroscopy system consists of a detector ... meters and peak position stabilizers, may also be included. Gamma spectroscopy detectors are passive materials that wait for a gamma interaction to occur in the detector volume. The most important interaction ... more details
Unreferenced date December 2009 Starbox begin name Gamma Lyrae Starbox image image File Vega in lyra.svg 239px caption Location of Lyrae in the constellation Lyra. Starbox observe epoch J2000 ra 18 sup h sup 58 sup m sup 56 sup s sup dec 32 41&prime 22&Prime appmag v 3.3 constell Lyra Starbox character class A0 b v u b variable Starbox astrometry radial v prop mo ra prop mo dec gal lat gal lon parallax dist ly 635 p error absmag v Starbox catalog names Starbox end Gamma Lyrae Lyr, Lyrae is a star in the constellation Lyra . It has the traditional names Sulafat Sulaphat , from the Arabic Lang ar al sul af t turtle , and Jugum , Citation needed date April 2009 from the Latin Lang la iugum yoke . The connection with turtles is that fine harps were traditionally made of tortoiseshell material tortoiseshell . It has stellar classification spectral class A0 and is of apparent magnitude magnitude 3.3. Gamma Lyrae is approximately Convert 635 ly pc abbr off lk on from Earth . Stars of Lyra Category Lyra constellation Category Bayer objects Lyrae, Gamma Category Stars with proper names Star stub ar de Sulafat es Gamma lyrae fa fr Gamma Lyrae id Gamma Lyrae lb Sulafat St r nl Sulafat ja pt Gamma lyrae ru sk Sulafat fi Gamma Lyrae ... more details
Image Perseus constellation map visualization.PNG 250px thumb Stars of Perseus constellation Perseus Starbox short name Gamma Persei epoch J2000.0 constell Perseus constellation Perseus ra 3 sup h sup 4 sup m sup 47.8 sup s sup dec 53 30 23 spectral G8III appmag v 2.91 dist ly 262 dist pc 80.37 names 23 Persei, Henry Draper catalogue HD 18925, Harvard Revised catalogue HR 915, SAO 23789, FK5 108, NSV , Bonner Durchmusterung BD 52 654 , Hipparcos catalogue HIP 14328 Gamma Persei Per, Per is a Stellar classification Class G8III , third magnitude star in the constellation Perseus constellation Perseus . Gamma Persei is actually a multiple star system consisting of two main components a yellow giant star of class G8 and a magnitude of 2.91, and a lesser white companion of class A2V and a magnitude of 3.00. The Gamma Persei stellar system is located about 260 light year s from Earth . div style clear both div References cite web title HD 18925 Star work SIMBAD Astronomical Database url http simbad.u strasbg.fr sim id.pl?protocol html&Ident gamma persei&NbIdent 1&Radius 10&Radius.unit arcmin&CooFrame FK5&CooEpoch 2000&CooEqui 2000&output.max all&o.catall on&output.mesdisp N&Bibyear1 1983&Bibyear2 2005&Frame1 FK5&Frame2 FK4&Frame3 G&Equi1 2000.0&Equi2 1950.0&Equi3 2000.0&Epoch1 2000.0&Epoch2 1950.0&Epoch3 2000.0 accessdate 2006 11 05 br External links http www4.airnet.ne.jp mira seishu name ha al thurayya.html Al Thurayya Stars of Perseus Category Bayer objects Persei, Gamma Category Perseus constellation es Gamma Persei fa fr Gamma Persei id Gamma Persei ja ... more details
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