About the aircraft instrument for measuring wind speeds the World War I bombsight Drift Sight A drift meter , also drift indicator and drift sight , is an optical device used to improve dead reckoning for aircraft navigation . It consists of a small telescope extended vertically through the bottom of the aircraft with the eyepiece inside the fuselage at the navigator s station. A reticle , normally consisting of spaced parallel lines, is rotated until objects on the ground are seen to be moving parallel to the lines. The angle of the reticle then indicates the aircraft s drift angle due to winds aloft, and can be used to calculate the ground speed. References refbegin http www.stelzriede.com ms html mshwpmn1.htm nav B 17 Pilot Training Manual Duties and Responsibilities of THE NAVIGATOR , Headquarters AAF http www.combataircrew.org PDF B 17 20Navigator 20Ellis 20Beymer.pdf Ellis Beymer, B 17 Navigator , Combat Aircrews Preservation Society, 2003 refend Category Navigational equipment ... more details
Genetic redundancy is a term typically used to describe situations where a given biochemical function is redundantly encoded by two or more gene s. In these cases, mutation s or defects in one of these genes will have a smaller effect on the fitness of the organism than expected from the genes function. Characteristic examples of genetic redundancy include Enns, Kanaoka et al. 2005 and Pearce, Senis et al. 2004 . Many more examples are thoroughly discussed in Kafri, Levy & Pilpel. 2006 . The main source of genetic redundancy is the process of gene duplication which generates multiplicity in gene copy number. A second and less frequent source of genetic redundancy are convergent evolution ary processes leading to genes that are close in function but unrelated in sequence Galperin, Walker & Koonin 1998 . Genetic redundancy has classically aroused much debate in the context of evolutionary biology Nowak et al., 1997 Kafri, Springer & Pilpel . 2009 . From an evolutionary standpoint, genes with overlapping functions implies minimal, if any, selective pressure s acting on these genes. One therefore expects that the genes participating in such buffering of mutations will be subject to severe mutational drift diverging their functions and or expression patterns with considerably high rates. Indeed it has been shown that the functional divergence of paralogous pairs in both yeast and human is an extremely rapid process. Taking these notions into account, the very existence of genetic buffering, and the functional redundancies required for it, presents a paradox in light of the evolutionary concepts. On one hand, for genetic buffering to take place there is a necessity for redundancies of gene function, on the other hand such redundancies are clearly unstable in face of natural selection ... utilization of genetic redundancy through responsive backup circuits. Proc Natl Acad Sci U S A 103 ... M, Pilpel Y. Genetic redundancy new tricks for old genes. Cell. 2009 Feb 6 136 3 389 92. Category ... more details
Genetic hitchhiking or genetic draft is the process by which an allele may increase in frequency by virtue of being genetic linkage linked to a gene that is positively selected. ref Cite journal doi 10.1098 rstb.2000.0716 pmid 11127900 volume 355 issue 1403 pages 1553 1562 last Barton first N H title Genetic hitchhiking journal Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences accessdate 2009 09 23 date 2000 11 29 pmc 1692896 ref Proximity on a chromosome may allow genes to be dragged along with a selective sweep experienced by an advantageous gene nearby. More generally, genetic hitchhiking can refer to changes in an allele s frequency due to any form of selection operating upon linked genes, including background selection against deleterious mutations. Whether a neutral allele becomes Fixation population genetics fixed is a matter of chance. The traditional view of this stochastic process is that it is dominated by sampling error, that is geneticdrift . But it may instead be dominated by whether the allele is linkage disequilibrium linked to a good genetic background this is known as genetic draft. ref Cite journal volume 55 issue 11 pages 2161 2169 last Gillespie first John H. title Is the population size of a species relevant to its evolution? journal Evolution year 2001 pmid 11794777 url http www.ufscar.br evolucao popgen ref12 6.pdf ref Advantage to mutators Consider a hypothetical mutator allele that increases the mutation mutation rate in the area around it. M A On this chromosome the gene M is a mutator allele, increasing the rate of mutation in the surrounding area. A is an allele which is Fixation population genetics fixed in the population. Due to the increased mutation rate, the A allele may be mutated into a new, advantageous allele, A . M A The individual in which this chromosome lies will now have a selective advantage ... created by mutation. A greater distance would increase the chance of genetic recombination recombination ... more details
In condensed matter physics and electrochemistry , drift current is the electric current , or movement of charge carrier s, which is due to the applied electric field , often stated as the electromotive force over a given distance. When an electric field is applied across a semiconductor material, a current is produced due to flow of charge carriers. The drift velocity is the average velocity of the charge carriers in the drift current. The drift velocity, and resulting current, is characterized by the mobility for details, see electron mobility for solids or electrical mobility for a more general discussion . See drift diffusion equation for the way that the drift current, diffusion current , and carrier generation and recombination are combined into a single equation. Overview In drift current, the positively charged particles called holes move with the electric field, whereas the negatively ... the fixed positive ion cores. This random movement of electrons in a straight line is known as drift current. Drift current also depends on the mobility of charge carriers in the respective conducting medium. Drift current in a p n junction diode In a p n junction diode, electrons and holes are the minority ... drift current. ref cite book last Halliday title Physics, Volume 2, 5Th Ed publisher Wiley India, 2007 isbn 8126510897, 9788126510894 pages 1115 ref In a biased p n junction, the drift current .... But as minority charge carriers can be thermally generated, drift current is temperature dependent ... a certain drift velocity . This combined effect of movement of the charge carriers constitutes a current known as drift current . Drift current due to the charge carriers such as free electrons and holes .... i Drift current density J sub n sub , due to free electrons is given by J sub n sub q n sub n sub E A cm sup 2 sup ii Drift current density JP, due to holes is given by J sub P sub q p sub p ... downloads drift and diffusion currents.doc ref cite book last Halliday title Physics ... more details
refimprove date November 2011 Infobox VG title Sonic Drift image caption developer Sega publisher Sega distributor Sega series Sonic the Hedgehog series Sonic the Hedgehog released vgrelease JP March 18, 1994 genre Racing video game Kart Racing platforms Sega Game Gear modes Single player video game Single player media ROM cartridge Cartridge The Sonic Drift games were a series of two racing games that featured characters from the Sonic the Hedgehog series Sonic the Hedgehog series . It was released for the Sega Game Gear in 1994 and 1995 respectively, and later re released many years later in several other compilations. Sonic Drift nihongo Sonic Drift is a kart racing video game ... collecting rings and power up s. The invincible theme of Sonic Drift is based on Sonic You Can Do Anything , the Japanese opening song from Sonic CD in Sonic Drift 2 , the invincible theme is from Sonic the Hedgehog 3 . Sonic Drift establishes a few characteristics for Amy Rose , who had her ... . Sonic Drift 2 Infobox VG title Sonic Drift 2 image caption developer Sega publisher Sega distributor ... small modes Single player video game Single player media ROM cartridge Cartridge nihongo Sonic Drift 2 2 is the sequel to Sonic Drift . It was released in Japan for the Sega Game Gear on March 17, 1995. The European version was released that same month as Sonic Drift Racing , and the North ... internationally, and Sega of Europe Sega Europe renamed it to Sonic Drift Racing , however, the title screen itself still used the name Sonic Drift 2 . Reception Reception for Sonic Drift 2 has ... . Sonic Drift 2 is scheduled to be re released as a downloadable game for the Nintendo 3DS eShop ... External links http www.mobygames.com game group sonic drift series Sonic Drift series at MobyGames ... video games Category Racing video games es Sonic Drift fr Sonic Drift nl Sonic Drift ja pl Sonic Drift pt Sonic Drift ru Sonic Drift ... more details
No footnotes date August 2009 Drift diving is a type of recreational diving where the diver is transported by the currents caused by the tide or in a river . The current gives the diver the impression of flying and allows the diver to cover long distances underwater, possibly seeing more habitats and formations than usual. Often drift diving is performed more for the experience of underwater flight and less for interactions with underwater life, which, given the speed at which most divers move, are reduced. Tidal streams can keep an area free from sediment , increasing visibility. Precautions Normal precautions for drift diving are to have a supporting boat follow the divers and to use a surface marker buoy . Drift diving requires Diver training specialized training and certification to be done safely and properly citation needed date November 2011 . Many dive agencies citation needed date November 2011 with Open Water Scuba Instructors offer drift diving training as part of their Advanced Open Water Diver training, and it is one of the specialties available therein. Drift diving requires more rigorous planning to be executed safely. In contrast to normal diving, drift diving is generally not planned to coincide with slack water . It is important to consider the direction of Tide Current tidal streams as well as their strength to avoid divers being swept into dangerous areas such as shipping lanes . It is also important to plan for the danger of separation, either underwater or at the surface. Each diver should carry an appropriate signaling device and compass. It is important for the diver to also have knowledge of the local rules pertaining to the use of surface marker buoys, as in some parts of the world, surface marker buoys alone are not legally sufficient signaling devices, and either of the international diver down flag s in the appropriate size , or perhaps both, might be required while drift diving. References refbegin cite book last Busuttili first Mike coauthors ... more details
Image Greenland East Coast 7.jpg right thumb Drift ice, Greenland Drift ice is ice that floats on the surface of the water in cold regions, as opposed to fast ice , which is attached fastened to a shore. Usually drift ice is carried along by winds and sea current s, hence its name, drift ice . When the drift ice is driven together into a large single mass, it is called pack ice . Wind and currents can pile up ice to form ridges three to four metres high, creating obstacles difficult for powerful icebreaker s to penetrate. Typically areas of pack ice are identified by high percentage of surface coverage by ice e.g., 80 100 . An ice floe is a large piece of drift ice that might range from tens of metres yards to several kilometres in diameter . Wider chunks of ice are called ice fields . The two major ice packs are the Arctic ice pack and the Antarctic ice pack . In many areas such as the Baltic Sea Baltic , drift ice is traditionally a seasonal event, appearing in winter and vanishing in warmer seasons. Seasonal ice drift in the Sea of Okhotsk by the northern coast of Hokkaid , Japan has become a tourist attraction of this area with harsh climate , ref http travel2.nytimes.com 2006 ... drift ice may be observed. ref http journals.ametsoc.org doi full 10.1175 1520 0442 281999 29012 ... of Okhotsk. J. Climate, 12 , 3347 3358. ref Drift ice affects Security of navigation Climatic impact ... the Kontio has become stuck in drift ice while towing a cargo ship. Image IceNomenclature 2LightPack.jpg thumb left Ice floes pack ice Image Wrangelisland.jpg thumb left Satellite image of drift ... drift Polar ice packs Polynya Sea ice Shelf ice Soviet and Russian manned drifting ice stations References references External links http video.google.com videoplay?docid 780082861495345281 Drift Ice ... NSIDC Sea Ice Index http imkhp7.physik.uni karlsruhe.de eisatlas Atlas of Antarctic Sea Ice Drift Biomes DEFAULTSORT Drift Ice Category Earth phenomena Category Sea ice Category Glaciology de Treibeis ... more details
Orphan date February 2009 coord 28 42 S 28 17 E display title Joels Drift is a town in Lesotho . References GEOnet2 32FA883033963774E0440003BA962ED3 Category Populated places in Lesotho lesotho geo stub ... more details
In geology , drift is the name for all material of glacial origin found anywhere on land or at sea ref Press, F., and R. Siever, 1986, Earth, 4th ed., W.H.Freeman and Company, NY, p. 248 ref , including sediment and large rocks glacial erratic . Glacial origin refers to erosion, transportation and deposition by glaciers . In the UK the term drift is commonly used to describe any Deposition geology deposits of Quaternary age. The Driftless Area refers to an unglaciated portion of North America devoid of the glacial drift of surrounding regions. References references Category Geology Category Driftless Area Geology stub de Geschiebe no L smasseavsetning ... more details
Unreferenced stub auto yes date December 2009 Orphan date December 2009 Instinctive drift or instinctual drift is the tendency of an organism to revert to instinctive behavior s that can interfere with the operant conditioning conditioned response. The concept originated with B. F. Skinner s former students Keller Breland Keller and Marian Breland when they tried to teach a pig to put money into a piggy bank. Instead the pig instinctively drifted to it s instinctive behaviour of putting the money on the ground, as they would do with food. Category Behavior DEFAULTSORT Instinctive Drift Psychology stub zh ... more details
Thoroughbred racehorse infobox horsename Perfect Drift image Image Perfect drift.jpg 250 px caption Perfect Drift at the 2006 Pacific Classic sire Dynaformer grandsire Roberto horse Roberto dam Nice Gal ... 2003 Awards honours updated May 11, 2007 Perfect Drift , foaled April 29, 1999, in Kentucky is an United States American thoroughbred horse racing racehorse . Background Perfect Drift is a bay gelding sired by the leading stallion Dynaformer , out of the Naskra mare Nice Gal. Perfect Drift was owned ... and bred, but long ago relocated to Kentucky following his trade. He trained Perfect Drift throughout ..., Kentucky . Perfect Drift started 50 times. The gelding has won 11 of those starts, placed in 13, and came ... Drift won on both dirt and turf, at distances ranging from 6 furlong s to 1 and a quarter miles. He ... Stakes Preakness . Perfect Drift s Derby was marred by being checked by War Emblem and forced to alter course to the outside. This allowed Proud Citizen to take second, but Perfect Drift still took ... Drift won the Grade I Stephen Foster Handicap , the Grade II Washington Park Handicap , the Grade ... , also placing. In this last race, up against the five year old Lava Man , Perfect Drift finished ... problem hindered Perfect Drift s run in the Classic. A post race examination showed he suffered .... But when they become tired, they just can t get the air. For two years, Perfect Drift went ... why we won t be back next year to try it again. Perfect Drift has been ridden by a dozen or so jockeys ... and Gary L. Stevens Gary Stevens , all now retired. Day was up for his big wins, guiding Perfect Drift ... Racetrack Hollywood Park . Perfect Drift ran in 19 graded stakes race Grade I races. In 2006, he took ... in the Classic. In July, 2007, it was reported that Perfect Drift had a small fracture in his cannon ... track at Churchill Downs , when Perfect Drift placed fourth behind Wanderin Boy. He underwent surgery ... of trainer Richard Mandella . In late March 2008, it was announced that Perfect Drift was back ... more details
orphan date July 2010 Cardiovascular drift CVD, CV sub drift sub is the phenomenon where some Circulatory system cardiovascular responses begin a time dependent change, or drift after around 10 minutes of exercise in a warm or neutral environment. It is characterised by decreases in mean Blood pressure arterial pressure and stroke volume and a parallel increase in heart rate . It is influenced by many factors, most notably the ambient temperature, Dehydration Avoiding dehydration hydration and the amount of muscle tissue activated during exercise. To promote cooling, blood flow to the skin is increased, resulting in a shift in fluids from blood plasma to the skin tissue. This results in a decrease in pulmonary arterial pressure and reduced stroke volume in the heart. To maintain cardiac output at reduced pressure, the heart rate must be increased. References McArdle W., Katch F., Katch V., Exercise physiology energy, nutrition, and human performance, Edition 6 , Lippincott Williams & Wilkins, 2007 Cerny F., Burton H., Exercise physiology for health care professionals , Human Kinetics, 2001 Kounalakis S., Nassis G., Koskolou M., Geladas N., The role of active muscle mass on exercise induced cardiovascular drift , Journal of Sports Science and Medicine, Sept, 2008 DEFAULTSORT Cardiovascular Drift Category Cardiovascular diseases medicine stub ar ... more details
Infobox video game title Metal Drift image File Metal Drift.jpg 256px developer Black Jacket Studios publisher Black Jacket Studios designer engine Torque Game Engine Advanced version 114 released vgrelease NA October 22, 2009 ref name GameFAQs http www.gamefaqs.com pc 956433 metal drift data Metal Drift Release Date from GameFAQs ref genre Vehicular combat game vehicular combat modes Single player ... index.php?g id 859&game Metal 20Drift Metal Drift Requirements from Game Debate ref Minimum system requirements ... Series or better. Memory 1 GB Ram Hard Disk 250MB of free hard drive space Metal Drift is a vehicular ... world in an alternate future. Gameplay Metal Drift s gameplay is focused on online multiplayer. Players ... than 12 human players bots controlled by the server will fill any remaining slots. Metal Drift features ..., and Community Leaders are granted black VIP skins. While being multiplayer based, Metal Drift also ..., giving new players the ability to practice on any of the different Drift Decks. Beyond singleplayer ... on a private network. Early Development Beta access for Metal Drift started in late 2008 with the game ... pre purchased the game at a discounted rate to get early access. Continued Development Metal Drift ... 16, 2011. ref name Garage Games http www.garagegames.com community blogs view 20853 Metal Drift Re ... that allow players to shoot through them. Distribution Metal Drift was available only on the Steampowered ... Drift received generally favorable reviews, however some critics found flaws with some aspects of gameplay ... right from the beginning. ref name Out of Eight http www.outofeight.info 2009 11 metal drift review.html Metal Drift Review from Out of Eight ref However, ItReviews found the tactical teamwork and varying ... 3d action games black jacket studios metal drift Metal Drift Review from It Reviews ref Dan Fedler from Gamasutra praised the use of scenes in the game, saying Metal Drift was One of the most exciting ... DanFelder 20100531 5037 And Scene PVP Done Right.php Metal Drift from Gamasutra ref References Reflist ... more details
Onesource date November 2007 Drift mining is either the mining of a placer deposit by underground methods, or the working of coal seams accessed by adit s driven into the surface outcrop of the coal bed. Drift is a more general mining term, meaning a near horizontal passageway in a mine, following the bed of coal, for instance or vein of ore. A drift may or may not intersect the ground surface. ref Paul W. Thrush, A Dictionary of Mining, Mineral, and Related Terms , US Bureau of Mines, 1968, p.350. ref This kind of mining is done when the rock or mineral is on the side of a hill. File W. Va. coal mine 1908.jpg thumb 300px Drift mine entry in West Virginia, 1908. Photo by Lewis Hine . Nome, Alaska Drift mining methods were used extensively to mine placer deposits during the early years of the Nome mining district . During summer, surface deposits could be worked, but some placer deposits were buried too deeply for surface placering. In addition, water to wash the gold from the placers was not available in the winter. Many miners tunnelled into deep placer deposits, bringing out the high grade gravels to be washed at the spring thaw. Most of the ground in Nome is permafrost . By drift mining, miners were able to recover much of the gold buried under the permafrost. Gold at Nome was concentrated in three ancient beach lines, now inshore, above sea level, and buried under roughly fifty feet of permafrost overlain by two feet of tundra . Gold was usually found on top of either bedrock or false bedrock, a layer of clay that occurred at the base of the beach or stream deposit. The miners ... down to either a pay streak or bedrock. When the gold was found, the drift mining began. Once they had ... the population of Nome was more than twenty thousand, many of them drift miners. Nome s gold fields, appearing untouched from the surface, are honeycombed with tunnels left by the gold rush drift miners ... Drift Mining Category Underground mining mining stub simple Drift mining ... more details
Infobox album See Wikipedia WikiProject Albums Name Mind the Drift Type Studio Artist Big Business band Big Business Cover Big Business Mind the Drift.jpg Released April 14, 2009 Recorded Genre Heavy metal music Heavy metal Length Label Hydra Head Records br small Hydra Head Records discography HH666 175 small Producer Last album Here Come the Waterworks br 2007 This album Mind the Drift br 2009 Next album Album reviews rev1 Decibel magazine Decibel rev1score 8 10 ref name Decibel review cite journal last Green first Nick title Big Business Mind the Drift journal Decibel year 2009 month June issue 56 page 76 ref rev2 Pitchfork Media rev2score 7.1 10 ref cite web url http pitchfork.com reviews albums 13055 mind the drift title Big Business Mind the Drift & 124 Album Reviews publisher Pitchfork date 2009 06 03 accessdate 2012 03 01 ref rev3 Rock Sound rev3score rating 8 10 ref name deller cite journal last Deller first Alex month June year 2009 title Big Business Mind the Drift journal Rock Sound issue 123 page 80 issn 1465 0185 ref rev4 Sputnikmusic rev4score rating 2 5 ref cite web url http www.sputnikmusic.com album.php?reviewid 30494 title Big Business Mind the Drift staff review publisher Sputnikmusic date accessdate 2012 03 01 ref rev5 The A.V. Club rev5score B ref cite web last Gordon first Scott url http www.avclub.com articles big business mind the drift,27858 title Big Business Mind The Drift & 124 Music & 124 Music Review publisher The A.V. Club date 2009 05 12 accessdate 2012 03 01 ref Automatically generated by DASHBot Mind the Drift is the third studio album by American heavy metal music heavy metal band Big Business band Big Business . ref Allmusic class album id r1539668 pure url yes Mind the Drift . Allmusic . Retrieved July 11, 2009. ref Track listing Found Art 3 34 Gold and Final 3 32 Cats, Mice. 3 52 I Got It Online 3 59 The Drift 3 40 Ayes Have It 4 17 Cold Lunch 3 33 Theme From Big Business II 8 43 References Reflist Category 2009 albums Category ... more details
Infobox film name Drift Fence image size image Drift Fence FilmPoster.jpeg caption director Otho Lovering producer Harold Hurley producer br William T. Lackey associate producer br Henry Herzbrun executive producer Citation needed date November 2010 uncredited writer Zane Grey story The Drift Fence br Robert Yost screenplay and br Stuart Anthony screenplay narrator starring See below music cinematography Virgil Miller editing Everett Douglas distributor released 14 February 1936 USA runtime 56 minutes country film US language English budget gross Drift Fence is a 1936 American film directed by Otho Lovering . The film is also known as Texas Desperadoes American reissue title . Cast Buster Crabbe as Slinger Dunn Katherine DeMille as Molly Dunn Tom Keene actor Tom Keene as Jim Travis Benny Baker as Jim Traft Leif Erickson as Curley Prentice Stanley Andrews as Clay Jackson Richard Carle as Sheriff Peter Bingham Irving Bacon as Windy Watkins, Traft Foreman Effie Ellsler as Grandma Dunn Jan Duggan as Carrie Bingham, Sheriff Bingham s sister Walter Long actor Walter Long as Bev Wilson, Neighbor Richard Alexander as Seth Haverly, Jackson Henchman Budd Fine as Sam Haverly, Jackson Henchman Chester Gan as Clarence Ranch Cook Jack Pennick as Weary Camp Cook External links IMDb title id 0027551 title Drift Fence Internet Archive film id DriftFence name Drift Fence Use dmy dates date November 2010 DEFAULTSORT Drift Fence Category 1936 films Category 1930s Western films Category Romantic Western genre films Category American action films Category English language films Category Black and white films Category Films directed by Otho Lovering 1930s Western film stub ... more details
Image Longshore drift.svg thumb right 300px Figure 1. Diagram demonstrating longshore drift Longshore drift consists of the transportation of sediments generally sand but may also consist of coarser sediments ... transport or littoral drift . ref Brunn, 2005 ref Longshore drift is influenced by numerous ... waves which result in longshore transport. ref Reeve et al., 2004 ref Longshore drift can generally ..., which moves the pebble back down the beach due to the influence of gravity . Longshore drift ... the difference in long shore drift of sediments from a sandy beach to that of sediments from a shingle ... of surf zone. ref Reeve et al., 2004 ref Overview Longshore drift formulas There are numerous calculations that take into consideration the factors that produce longshore drift. These formulations ... view into the processes that generate longshore drift. The most common factors taken into consideration ... drift plays a large role in the evolution of a shoreline , as if there is a slight change of sediment supply, wind direction , or any other coastal influence longshore drift can change dramatically ... within the coastal system that may affect the distribution and impact of longshore drift. Some of these are Geological ... to hydrodynamic influences, e.g. the influence of new tidal inlets and deltas on drift. Alterations of the sediment budget, e.g. switch of shorelines from drift to swash alignment, exhaustion of sediment ... on shore This sediment then enters the coastal system and is transported by longshore drift. A good example of the sediment budget and longshore drift working together in the coastal system is inlet ... of features of long shore drift that occur on a coast where long shore drift occurs uninterrupted ... Spit, at the northern end of Cape Cod , was formed by longshore drift after the end of the last Ice age . Spit landform Spit s are formed when longshore drift travels past a point e.g. river mouth or re entrant where the dominant drift direction and shoreline do not veer in the same direction. ref ... more details
Sea Drift is the title of a section of Walt Whitman s great poetic work Leaves of Grass , first published in 1855 . It is a compilation of poems referring to the sea or the sea shore. ref Whitman, Walt. Leaves of Grass Deathbed edition 1891 92 J. M. Dent Ltd., London 1993 . First published 1855. ref Sea Drift follows the section titled A Broadway Pageant , and precedes the section By The Roadside . The poems included in Sea Drift are Out of the Cradle Endlessly Rocking As I Ebb d with the Ocean of Life Tears To the Man of War Bird Aboard at a Ship s Helm On the Beach at Night The World Below the Brine On the Beach at Night Alone Song for All Seas, All Ships Patrolling Barnegat After the Sea Ship Musical settings Various works of twentieth century classical music have been inspired by the poems. Sea Drift Delius Sea Drift . Frederick Delius set part of Out of the Cradle Endlessly Rocking for baritone solo, chorus and orchestra. ref P. Heseltine, Delius Bodley Head, London 1923 , 168. ref It received its first performance in Germany Essen , Tonk nstler verein, Josef Loritz baritone , cond. Georg Witte in 1906, and its first British performance, sung by Frederic Austin and conducted by Henry J. Wood , in autumn 1908 at the Sheffield Festival. ref T. Beecham, Delius Hutchinson, London 1959 , 135, 154. ref A Sea Symphony by Ralph Vaughan Williams . After an introduction Behold, the Sea Itself etc. , the text of A Song for All Seas, All Ships is taken up Today a rude brief recitative.. . The second movement takes as its text On the Beach at Night Alone. The poems of the last two movements ..., LPO Adrian Boult, text copyright Michael Kennedy music critic Michael Kennedy 1968. ref Sea Drift Carpenter Sea Drift . John Alden Carpenter wrote a tone poem of this name in 1933, which was premiered ... Music New York Hill and Wang, 1959 . ref References reflist Category 1855 poems Sea Drift Category American poetry collections Sea Drift Category Poetry by Walt Whitman Sea Drift ... more details
The drift velocity is the average velocity that a particle, such as an electron , attains due to an electric field . It can also be referred to as Axial Drift Velocity since particles defined are assumed to be moving along a plane. In general, an electron will rattle around in a Electrical conductor conductor at the Fermi energy Fermi velocity randomly. An applied electric field will give this random motion a small net velocity in one direction. In a semiconductor , the two main carrier scattering mechanisms are ionized impurity scattering and lattice scattering . Because current is proportional to drift velocity, which is, in turn, proportional to the magnitude of an external electric field, Ohm s law can be explained in terms of drift velocity. Drift velocity is expressed in the following equations math J it drift rho cdot v it avg math , where math J it drift math is the current density, math rho math is charge density in units Coulomb C m sup 3 sup , and v sub avg sub is the average velocity of the carriers drift velocity math v it avg mu cdot E math , where is the electron mobility in m 2 V.s and E is the electric field in volt V m. Numerical example Electricity is most commonly conducted in a copper wire. Copper has a density of 8.94 g cm , and an atomic weight of 63.546 g mol, so there are 140685.5 mol m . In 1 Mole unit mole of any element there are 6.02 10 sup 23 sup atoms Avogadro s constant . Therefore in 1m of copper there are about 8.5 10 sup 28 sup ... 2 sup A 0.0005 sup 2 sup . The charge of 1 electron is q 1.6 10 sup 19 sup Coulombs. The drift ... Feb 14 ref In the case of alternating current , the direction of electron drift switches with the frequency ... of F 60 Hz, drift velocity would likewise vary in a sine wave pattern, and electrons would fluctuate ... Microscopic View at Hyperphysics DEFAULTSORT Drift Velocity Category Condensed matter physics condensedmatter ... hu Driftsebess g pl Pr dko dryfu pt Velocidade de deriva ru simple Drift ... more details
NOTOC Drift seeds also sea beans and drift fruits are seeds and fruits adapted for long distance seed dispersal dispersal by water. Most are produced by tropical trees, and they can be found on distant beaches after drifting thousands of miles through ocean current s. Consequently, drift seeds and fruits are of interest to scientists who study these currents. In botanical terminology, a drift fruit is a kind of diaspore botany diaspore , and drift seeds and fruits are disseminules. Sources of drift seeds Image Drift seeds, Mozambique.jpg thumb right 300px Drift seeds of three legume species found at Kanda on the southern Mozambique coast in May 2004 br 1. Snuff Box Sea Bean Entada rheedii br 2. Grey nickernut Caesalpinia bonduc br 3. a,b Colour forms of Mucuna Ox eye bean s Mucuna gigantea Caesalpinia bonduc Nickernut Grey Nickernut Caesalpinia major Yellow Nickernut Carapa Carapa guianensis guianensis Crabwood New World tropics Entada gigas Seaheart, New World tropics Entada rheedii Snuff Box Sea Bean, from the tropics of the Indian Ocean Erythrina fusca Bucayo Pantropical ref name CoralBean cite journal url http www.seabean.com newsletters vol07 1.pdf title Notes On The Ocean Dispersal of Coral Beans first Wayne P. last Armstrong journal The Drifting Seed month May year 2001 volume 7 issue 1 pages 5 6 ref Erythrina variegata Tiger Claw Old World tropics ref name CoralBean Mucuna spp. Ox eye Bean, Hamburger Seed, Deer eye Bean Ormosia spp. Horse eye Bean, from the tropics Terminalia catappa Tropical Almond, from the tropics of Asia ref name Geographic cite journal first J. last ... pages 112 113 ref Sources of drift fruits Barringtonia asiatica Box Fruit, from Polynesia Coconut ... concerning drift seeds and other Flotsam and jetsam flotsam . multiple image align center direction horizontal header Drift seeds and drift fruits header align center image1 Cayos pict089.jpg alt1 ... Beachcombing Curtis Ebbesmeyer References reflist External links commonscat Drift seeds wiktionary ... more details
Image Env contamination1.if.gif 325px right Possible sinks of pesticide drift caused environmental contamination Pesticide drift refers to the unintentional diffusion of pesticides and the potential negative effects of pesticide application including, but not limited to off target contamination due to spray drift as well as runoff from plants soil ref name Pesticide spray and dust drift EPA Definition . This can lead to damage in human health, environmental contamination, and property damage ref name Pesticide spray and dust drift EPA Definition ref name Community Guide to Recognizing and Reporting Pesticide Problems . Types With placement localised spraying of broad spectrum pesticides , wind drift must be minimized, and considerable efforts have been made recently to quantify and control spray drift from Spray nozzle hydraulic nozzles ref Hewitt, A.J., Spray drift impact of requirements to protect the environment, Crop Protection 19 2000 p 623 627 ref . Conversely, wind drift is also an efficient mechanism for moving droplets of an appropriate size range to their targets over a wide area with ultra low volume ULV spraying. Himel 1974 made a distinction between exo drift the transfer of spray out of the target area and endo drift, where the active ingredient AI in droplets falls into the target area, but does not reach the biological target. Endo drift is volumetrically more significant and may therefore cause greater ecological contamination e.g. where chemical pesticides pollute ... public concern and research into spray drift, several studies Which? date March 2011 have concluded ... application References reflist 2 refs ref name Pesticide spray and dust drift EPA Definition cite web last first title Pesticide Spray and Dust Drift url http www.epa.gov opp00001 factsheets ... External links http earthjustice.org blog 2010 march npr pesticide drift plaguing rural communities EarthJustice health impacts of pesticide drift in rural farming community http www.panna.org Pesticide ... more details
In medicine , pronator drift also known as pyramidal drift refers to a pathologic sign medicine sign seen during a neurological examination ref name pmid15774443 cite journal author Anderson NE, Mason DF, Fink JN, Bergin PS, Charleston AJ, Gamble GD title Detection of focal cerebral hemisphere lesions using the neurological examination journal J. Neurol. Neurosurg. Psychiatr. volume 76 issue 4 pages 545 9 year 2005 month April pmid 15774443 pmc 1739581 doi 10.1136 jnnp.2004.043679 url http jnnp.bmj.com cgi pmidlookup?view long&pmid 15774443 ref . Jean Alexandre Barr is credited with having first described it thus it is sometimes known as the Barr test. A positive result indicates spasticity . This sign can appear due to an upper motor neuron lesion ref Pronator drift. gpnoebook.co.uk. URL http www.gpnotebook.co.uk simplepage.cfm?ID 503709725 http www.gpnotebook.co.uk simplepage.cfm?ID 503709725 . Accessed On October 23, 2008. ref ref name urlThe Precise Neurological Exam cite web url http edinfo.med.nyu.edu courseware neurosurgery motor.html title The Precise Neurological Exam format work accessdate 2009 11 28 ref or various other conditions including inborn errors of metabolism which include spasticity as a symptom. Description The patient is asked to hold both arms fully extended at shoulder level in front of him, with the palms upwards, and hold the position. If they are unable to maintain the position the result is positive. Closing the eyes accentuates the effect, because the brain is deprived of information about the position of hte body, and must rely on visual cues. Tapping on the palm of the out stretched hands can accentuate the effect. Interpretation This is a test ... drift on that side reflecting a contra lateral pyramidal tract lesion. A lesion in the cerebellum produces a drift upwards. References reflist External links http pediatricneurology.com images PEdrift14.jpg Picture of pronator drift test position pediatricneurology.com. Nervous and musculoskeletal ... more details
Unreferenced stub auto yes date December 2009 Drift migration is the phenomenon in which bird migration migrating bird s are blown off course by the winds at the time they are in flight. It is more likely to happen to birds heading south in autumn because the large numbers of inexperienced young birds are less able to compensate than the adults heading north in spring. http rspb.royalsocietypublishing.org content 270 Suppl 1 S8 Drift is assisted by disorientating conditions such as mist or drizzle, and can result in large numbers of birds arriving together in an area in which they are not normally seen. In the UK this is called a fall, while in the U.S. it s known as a fallout, though in the latter case, it need not involve vagrant birds. An example would be an east wind in September blowing Scandinavia n migrants such as Bluethroat s, Wryneck s, and the continental race of European Robin Robin onto the east coast of England and Scotland , leading to temporary concentrations of these species at headlands like Spurn . See also Reverse migration DEFAULTSORT Drift Migration Category Bird migration Category Bird terminology Ornithology stub es Deriva migratoria ... more details
The Drift is a post rock band from San Francisco , California . The Drift was founded in 2002 as a side project by Danny Grody, of Tarentel , and Trevor Montgomery , of Lazarus 2000s band Lazarus . ref http allmusic.com artist the drift p700606 biography Biography , Allmusic ref Montgomery left the group in 2004 and Grody recruited several new members for a full band, with several releases following in 2005. The group has released two full lengths and two collections on Temporary Residence , with a third full length announced for fall 2011. Members Danny Grody keyboards, guitar Trevor Montgomery bass Safa Shokrai bass Rich Douthit drums Jeff Jacobs horns, electronics Discography Travels in Constants, vol. 19 Temporary Residence , 2005 Noumena Temporary Residence, 2005 RMXS Temporary Residence, 2007 Ceiling Sky Temporary Residence, 2007 Memory Drawings Temporary Residence, 2008 Blue Hour Temporary Residence, 2011 References reflist DEFAULTSORT Drift Category Musical groups from California Category American post rock groups Category Musical groups established in 2002 ... more details
There are two types of natural language linguistic drift , a wikt unidirectional unidirectional short term and Period of time cyclic long term drift. Short term unidirectional drift According to Edward Sapir Sapir , drift is the unconscious change in natural language. He gives the example Whom did you see? which is grammatically correct but is generally replaced by Who did you see? Structural symmetry seems to have brought about the change all other wh words are monomorphic . The drift of speech changes dialects and in long terms, it generates new languages. Although it may appear these changes have no direction, in general they do. For example, in the English language, there was the Great Vowel Shift , first described and accounted for in terms of drift by Otto Jespersen Jespersen 1909 1949 . Another example of drift is the tendency in English to eliminate the er comparative formative and to replace it with the more analytic more . Thus, we now regularly hear more kind and more happy instead of the prescriptive kinder , happier . In English, it may be the competition of the er agentive suffix which has brought about this drift, i.e. the eventual loss of the Germanic comparative system in favor of the newer system calqued on French. Moreover, the structural asymmetry of the comparative formation may be a cause of this change. The underlying cause of drift may be Entropy information ... as George Kingsley Zipf Zipf and Andr Martinet Martinet . ref Long term cyclic drift Cyclic drift ... of languages open to investigation over long periods of time. Drift in this sense is not language ... , the product of chain reaction s and subject to cyclic drift ref See Henri Wittmann s 1983 state ... of drift. Word order and word order changes, Charles N. Li ed. , 269 305. Wittmann, Henri 1969 . The Indo European drift and the position of Hittite. International Journal of American Linguistics ... behavior and the principle of least effort . Cambridge, Mass MIT Press. DEFAULTSORT Drift Linguistics ... more details
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