Multiple issues copy edit November 2011 expert subject October 2011 refimprove August 2007 Geneticerosion ... to meet and breed with others in their endangered Small population size low population . Geneticerosion ... of geneticerosion and most need a human assisted breeding program to keep their population viable ... the effect of geneticerosion gets when each surviving individual of the species is lost without getting a chance to breed. Geneticerosion gets compounded and accelerated by habitat fragmentation ... the threat of an epidemic that could well be fatal to the entire population. title GENETICEROSION ... in Norway ref Geneticerosion in agricultural and livestock biodiversity See also Agricultural biodiversity Geneticerosion in agricultural and livestock biodiversity is the loss of genetic diversity ... to the natural environment in which they originated. The term geneticerosion is sometimes used ... of varieties or even species. The major driving forces behind geneticerosion in crops are variety ... geneticerosion In situ conservation With advances in modern science several techniques and safeguards have emerged to check the relentless advance of geneticerosion and the resulting acceleration ... on our planet and the diversity in their gene pool by guarding against geneticerosion through modern ... getting a chance to breed. Low genetic diversity in a population of wild animals and plants leads ... s that would be found by inspecting the genetic material of every living member of that species or population. A large gene pool indicates extensive genetic diversity , which is associated with robust populations that can survive bouts of intense selection . Meanwhile, low genetic diversity see inbreeding ... gene pool that leaves fewer and fewer mating partners. What are the genetic implications? The animals ... are the genetic implications? The animals become part of a high stakes poker game with a crooked ... ecosystem management is the general tendency towards genetic and ecological uniformity imposed by the development ... more details
pp vandalism expiry 18 April 2013 small yes about morphological image processing operations Erosion morphology use of in dermatopathology Erosion dermatopathology Image KharazaArch.jpg thumb thumb right 300px A natural arch produced by the erosion of differentially weathered rock in Jebel Kharaz, Jordan Erosion is the process by which soil and rock are removed from the Earth s surface by natural processes ... in other locations. While erosion is a natural process, human activities have dramatically increased by 10 40 times the rate at which erosion is occurring globally. Excessive erosion causes problems ... soil layers . Water and wind erosion are now the two primary causes of land degradation combined, they are responsible for 84 of degraded acreage, making excessive erosion one of the most significant ... erosion. ref name dirt book cite book author Montgomery, David title Dirt The Erosion of Civilizations ... Cite book author Julien, Pierre Y. title Erosion and Sedimentation publisher Cambridge University Press ... However, there are many available alternative land use practices that can curtail or limit erosion such as Terrace .... Physical processes Water erosion Rainfall File Regenerosion offenerBoden Tagebau.jpg thumb right A hillside covered in rills and gullies due to erosion processes caused by rainfall There are three primary types of erosion that occur as a direct result of rainfall sheet erosion , rill erosion , and gully erosion . Sheet erosion is generally seen as the first and least severe stage in the soil erosion process, which is followed by rill erosion, and finally gully erosion the most severe of the three . ref cite book authors Toy, Terrence J. et al title Soil Erosion Processes, Predicition, Measurement ... of soil erosion title Soil Erosion volume Vol. 10 publisher Elsevier year 1982 isbn 9780444997258 ... Organization chapter Types of erosion damage title Soil Erosion by Water Some Measures for Its Control ... books.google.com books?id 6KeL3ix6ZqQC&pg PA23 ref Sheet erosion is the transport of loosened soil ... more details
wiktionary geneticGenetic may refer to Genetics , in biology, the science of genes, heredity, and the variation of organisms Genetic, used as an adjective, refers to heredity of traits Gene , a unit of heredity in the genome of an organism Genetic linguistics , in linguistics, a relationship between two languages with a common ancestor language Genetic algorithm , in computer science, a kind of search technique modeled on evolutionary biology disambiguation simple Genetic ur ... more details
Erosion corrosion is a degradation of material surface due to mechanical action, often by impinging liquid, abrasion by a slurry, particles suspended in fast flowing liquid or gas, bubbles or droplets, cavitation , etc. The mechanism can be described as follows mechanical erosion of the material, or protective or passive oxide layer on its surface, enhanced corrosion of the material, if the corrosion rate of the material depends on the thickness of the oxide layer. The mechanism of erosion corrosion, the materials affected by it, and the conditions when it occurs are generally different than that of flow accelerated corrosion , although the last one is sometimes classified as a sub type of erosion corrosion. Surface chemistry can play a role in erosion corrosion due to Mechanochemistry mechanochemical effects. Erosion corrosion is the second most common cause of Erosion corrosion of copper water tubes copper tube failure . See also Were Tribology Tribocorrosion References Reflist unsourced date November 2011 Further reading Alan Levy, Solid Particle Erosion and Erosion Corrosion of Materials , ASM International, 1995. Category Engineering mechanics Category Corrosion Category Materials degradation engineering stub ... more details
There are dozens of erosion prediction mathematical model models . Most have been developed for agricultural areas and are design to compare predicted annual rates of soil loss from broad areas under various cropland and rangeland management techniques. Some are purely Statistics statistical models, others mechanistic. Two of the more widely used methods in North America are the Universal Soil Loss Equation Revised Universal Soil Loss Equation RUSLE and WEPP Water Erosion Prediction Project erosion model WEPP . Much of the research on erosion rates is directed towards supporting or fitting these competing models. In particular much of the mining mineland erosion literature is solely focused on fitting or improving RUSLE parameters. Aside from a few new deterministic gully erosion models, these models do not consider gully erosion mostly due to difficulties in modelling, and partly because gullies are often repaired in agricultural, forestry, or mining environments. Because there is a wide discrepancy between predicted and observed erosion rates, models are better as research tools than ... and verified for local conditions and if the design accounts for the uncertainty. Most erosion modelling ... flexibility that is generally uneconomical for farmers and ranchers and most users of erosion models ... to estimate erosion rates include purely statistical models subjectively determined erosion rates using expert judgement combined with a database of erosion rates of natural and reclaimed sites ... or as determined by dating of deposits to determine average erosion rates. Analysis of historical ... and field flume measurements of erosion under simulated rainfall or flow conditions physically based gully erosion models landform and landscape scale models, often GIS based, that apply erosion mechanics or statistical relationships to predict changes in topography and erosion rates sediment budget models based on watershed monitoring. See also Erosion control Geomorphology References refbegin ... more details
Unreferenced date December 2009 Internal erosion of soil particles from within a dam by water that seeps through the dam is one of the most common causes of failure of levee s and earth dam s. Internal erosion is especially dangerous because there may be no external evidence, or only subtle evidence, that it is taking place. Usually a sand boil can be found, but the boil might be hidden under water. A dam may breach within a few hours after evidence of internal erosion becomes obvious. Internal erosion manifests by the migration of soil particles by suffusion or piping . Piping is induced by regressive erosion of particles from downstream and along the upstream line towards an outside environment until forming a continuous pipe. Suffusion is the migration of soil particles through the soil matrix. External links http hal.archives ouvertes.fr docs 00 30 55 00 PDF cfm07 0007.pdf The scaling law of piping erosion PDF Datei 898 kB http qjegh.lyellcollection.org cgi content abstract 13 1 53 Development of piping erosion conditions in the Benson area, Arizona, U.S.A. http www.britishdams.org 2008conf papers Internal 20erosion P33 20Brown 20Final.pdf britishdams.org DEFAULTSORT Internal Erosion Category Dams de Piping nl Piping fr Fontis ... more details
Gastric erosion occurs when the mucous membrane lining the stomach becomes inflamed. Some drugs, as tablets, can irritate this mucous membrane, especially drugs taken for arthritis and muscular disorders, steroids , and aspirin . A gastric erosion may also occur because of emotional Stress medicine stress , or as a side effect of burn s or stomach injuries. Symptoms There is basically one symptom of gastric erosion bleeding from the area where the stomach lesion is. Bowel movements may contain blood . Vomit may be bloody as well, but a gastric erosion may not cause vomiting. Blood may be black because it will be partially digested. Loss of blood may cause one to develop anemia . Risks Anemia and other problems related to blood loss may occur. Sometimes a person with a gastric erosion will experience severe bleeding all at once here red bloody vomiting may occur, and or black bowel movements. Treatment Doctors can prescribe alternative anti arthritic drugs, and alternatives for aspirin are available. Once you have gastric erosion, however, you cannot treat it without the aid of a physician. To keep from getting gastric erosion, drugs that could irritate your stomach should be taken with or directly after food. Avoid alcohol. Those with severe gastric erosion will likely be hospitalized and given a Unless there is an underlying disease causing gastric erosion, once the irritant is removed, gastric erosion will not occur again. Source Gastric Erosion. Encyclop dia Britannica, Micropaedia. Encyclop dia Britannica Inc., 1998 ed. Category Stomach disorders ... more details
The erosion index EI , also called the erodibility index is created by dividing potential erosion from all sources except gully erosion by the T value , which is the rate of soil erosion above which long term productivity may be adversely affected. The erodibility index is used in conjunction with conservation compliance and the Conservation Reserve Program . For example, one of the eligibility requirements for the CRP is that land have an EI greater than 8. References CRS article Report for Congress Agriculture A Glossary of Terms, Programs, and Laws, 2005 Edition url http ncseonline.org nle crsreports 05jun 97 905.pdf author Jasper Womach Category United States Department of Agriculture Category Soil science ... more details
File Pimmit bank erosion.JPG thumb right Stream bank erosion along Pimmit Run in McLean, Virginia , the result of upstream development. Bank erosion is natural, but can be accelerated by humans. Bank erosion is the wearing away of the banks of a stream or river . This is distinguished from erosion of the bed of the watercourse, which is referred to as scour . The root s of tree s growing by a stream are undercut by such erosion. As the roots bind the soil tightly, they form abutments which jut out over the water. These have a significant effect upon the rate and progress of the erosion. ref citation title Riparian vegetation and fluvial geomorphology chapter The Influence of Trees on Stream Bank Erosion author Ian Rutherford, James Grove url http books.google.com books?id mPLnOjGXUf0C&pg PA141 year 2004 isbn 9780875903576 ref Measurement Erosion and changes in the form of river banks may be measured by inserting metal rods into the bank and marking the position of the bank surface along the rods at different times. ref citation url http books.google.co.uk books?id PJHw hSKGgC&pg PA113 date 2004 06 01 title Stream hydrology an introduction for ecologists isbn 9780470843574 author Nancy D. Gordon chapter Erosion and Scour ref This simple measurement technique can be enhanced with the use of a data logger attached to a rod of photoreceptors the logger records the voltage, which is an indication of how much of the rod is exposed. ref Citation last1 Lawler first1 D. M. title Design and installation of a novel automatic erosion monitoring system journal Earth Surface Processes and Landforms volume 17 pages 455 year 1992 doi 10.1002 esp.3290170505 postscript . issue 5 ref Control File Esk bank erosion.jpg thumb left Gabion s used to stabilize the bank of the River Esk, Lothian River Esk , Lothian , Scotland Bank erosion is a natural process without it, rivers would not meander ... reflist See also Erosion Cut bank Point bar Category Erosion Category Hydrology ... more details
The interplay between erosion and tectonics has been a matter of debate since the early 1990s. While Tectonics tectonic effects on surface processes such as erosion for example, the river entrainment subsequent to a tectonic rock uplift have been long recognized, the reverse the effects of erosion on tectonic deformation has only recently been addressed thanks to the availability of computer modelling techniques. ref Willett, Sean D., et al., Tectonics, Climate and Landscape Evolution , Geological Society of America Special Paper 398, 2006 ISBN 0 8137 2398 1 http earth.geology.yale.edu brandon Eprints Willett 20etal2006GSASP390 Introduction.pdf PDF of Introduction ref Tectonics modify erosion because it modifies the surface topography , which is the most important parameter controlling surface processes of mass transport. Erosion might be reduced on a flat landscape before a normal fault generates a topographic gradient for example. Landforms are generally considered as the result of the interaction between the tectonic and isostatic uplift and the response of surface erosion. The way the tectonic deformation is influenced by erosion is more subtle and is produced by the weight of the mass removed eroded from the surface and the weight of the deposited sediments, which in some circumstances can become relevant enough as to modify the state of stress at depth and the pattern of tectonic deformation. Although originally proposed for continental collision settings, presently the effects of erosion on tectonic deformation have been extended to a diversity of tectonic settings including continental margin s, plate subduction , and high plateau s. See also River anticlines References Reflist Category Geophysics Category Geomorphology River morphology tectonics stub es Erosi n tect nica ... more details
or water that is causing the erosion. On construction sites they are often implemented in conjunction ... isle of grain kent.jpg thumb right Hydroseeding in UK Examples of erosion control methods include .... Nashville, TN. http www.state.tn.us environment wpc sed ero controlhandbook Tennessee Erosion ... of soil erosion and resulting sediment surface runoff , including an early paper by Albert ... and sheet erosion. Earliest models were a simple set of linked equations which could be employed ... CPESC Certified Professional in Erosion and Sediment Control Coastal management Dust Bowl Natural ... of soil erosion control http www.erosioncontrol.com Erosion Control a trade magazine for the erosion control industry http www.ieca.org International Erosion Control Association Professional Association, Publications, Training http www.escn.tv ESCN.tv Erosion and Sediment Control Network Online TV show dedicated to Erosion and Sediment Control Industry with archives and video library http www.WatchYourDirt.com WatchYourDirt.com Erosion Control Educational Video Resource http riparianhabitatrestoration.ca 575 bioengintro.htm Soil Bioengineering and Biotechnical Slope Stabilization Erosion Control ... Soil and water management method DEFAULTSORT Erosion Control Category Construction Category ... more details
wikify date January 2012 Gravitational erosion is caused by gravity in contrast to the physical movement of wind and water required for other types of soil erosion . Gravitational erosion involves both large scale mass wasting and smaller scale erosion. Forms of gravitational erosion include avalanche , landslide , debris flow , mudflow , and sinkhole formation. ref cite book title Manual on Sediment Management and Measurement url http www.whycos.org IMG pdf 948 E.pdf publisher World Meteorological Organization date 2003 isbn 92 63 10948 6 accessdate 2006 06 22 ref Two types of mass movements are Slump geology slump and downhill creep creep . Slump Material slips down along a curved surface When the slope becomes too steep, the base material cannot support the rock and sediment above. Water can cause slump by slipping weakening the slipping mass. Where a stronger layer rests on top of a weaker layer, it collapses. A curved scar is left where the slumped materials originally rested. Creep Materials slowly shift downhill Creep is caused by gravity alone References references Category Geomorphology Category Geological processes Category Soil ... more details
The cycle of erosion was a model for stream erosion and landscape development proposed by William Morris Davis in the late 19th century. Davis Stages in the fluvial cycle of erosion published in 1909 defined a young, mature, and old sequence in the development of river valleys and the landscape the rivers were eroding. His basic concept includes a rapid tectonic uplift, followed by cessation of the land, which allows the rivers and streams to reduce the surface to a level close to sea level. The concept of peneplain peneplanation was a part of his model. In his model Davies picked up ideas of John Wesley Powell about limitation of erosion on land and concluded that sea level is the ultimate base level for sub aerial erosion. Further he suggested that streams always have at least some gradient and temporary base levels, such as inland lakes, are controlling points upstream of them. The model developed by Davis, though important in historical context, is currently considered only a first approximation . Developments in the sciences of geology and geomorphology , especially the plate tectonics revolution of the 1960s and 70s, have confirmed the preliminary nature of the model. See also Rejuvenation river External links http www.staff.amu.edu.pl sgp gw wmd wmdfig.html Fluvial cycle of erosion References Don J. Easterbrook 1999 , Surface Processes and Landforms second Edition Chapter Six DEFAULTSORT Cycle Of Erosion Category Geomorphology geomorph stub hi he ka ml ja sl Erozijski krog zh ... more details
nofootnotes date March 2011 Image Headward erosion.jpg thumb right Headward erosion is demonstrated in this 1906 photo taken near Mount Tamalpais in Marin County, California . Groundwater sapping is causing this gully to lengthen up the slope. Image Cox Lavaka W16.jpg thumb right Active headward erosion lavaka on right, with inactive, largely infilled older examples to left Headward erosion is a fluvial process of erosion that lengthens a stream , a valley or a gully at its source river or stream head and also enlarges its drainage basin . The stream erodes away at the rock and soil at its headwaters in the opposite direction that it flows. Once a stream has begun to cut back, the erosion is sped up by the steep gradient the water is flowing down. As water erodes a path from its headwaters to its mouth at a standing body of water, it tries to cut an ever shallower path. This leads to increased erosion at the steepest parts, which is headward erosion. If headward erosion continues long enough, it can cause a stream to break through into a neighboring drainage basin watershed and stream capture capture drainage that previously flowed to another stream. For example, headward erosion by the Shenandoah River in the U.S. state of Virginia , a tributary of the Potomac River , permitted the Shenandoah to capture successively the original upstream segments of Beaverdam Creek , Gap Run and Goose ... added to the Shenandoah s effluent discharge , it accelerated the process of headward erosion until ... created by headward erosion Three kinds of streams are formed by headward erosion insequent streams ... streams form by random headward erosion, usually from sheetflow of water over the landform surface ... the heads of gullies. Subsequent streams form by selective headward erosion by cutting away ... created by headward erosion Headward erosion creates three major kinds of drainage patterns Drainage ... 0 13 860958 6 Category Erosion Category Hydrology geomorph stub Commons cs Zp tn eroze es Erosi n ... more details
refimprove date February 2008 Image Coastal Erosion Hunstanton Cliffs.jpg thumb 200px right Many stretches of the East Anglia , England coastline are prone to heavy levels of erosion, such as this, the collapsed section of cliffs at Hunstanton , Norfolk . Coastal erosion is the wearing away of land and the removal ... coastal erosion , which may take the form of long term losses of sediment and Rock geology rocks , or merely the temporary redistribution of coastal sediments erosion in one location may result in accretion nearby. The study of erosion and sediment redistribution is called coastal morphodynamics ... coasts, coastal erosion results in dramatic or non dramatic rock formations in areas where the coastline contains rock layers or fracture zones with varying resistance to erosion. Softer areas become ... File SIRT railwalking jeh.JPG thumb Small scale erosion destroys abandoned tracks An example of a cliffed ... can also increase coastal erosion Hallsands in Devon , England, was a coastal village that washed away ... of reaction by removing the reacted material. Factors that influence erosion rates Primary factors The ability of waves to cause erosion of the cliff face depends on many factors. The hardness ... at the coast, and can have an important influence on the rate of cliff erosion. Shoals and bars offer protection from wave erosion by causing storm waves to break and dissipate their energy before reaching ... may cause the locus of beach or cliff erosion to change position along the shore. ref name oldale cite web url http woodshole.er.usgs.gov staffpages boldale capecod index.html title Coastal Erosion ... accessdate 2009 09 11 ref gallery caption Coastal Erosion widths 225px heights 225px perrow 4 Image ... shown above. Image BeachErosionCabrillo.jpg Beach erosion at Cabrillo National Monument , California. Image BeachErosionTP.jpg Large scale coastal erosion at Torrey Pines State Reserve , California. Image coastal erosion inland.jpg Coastal erosion at Torrey Pines State Reserve , California, resulted ... more details
Infobox Disease Name Acid erosion Image Caption DiseasesDB ICD10 K03.2 ICD9 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D014077 Acid erosion , also known as dental erosion , is the irreversible ... erosion is the most common chronic disease of children ages 5&ndash 17, ref Cite book last U.S. Department ... analysis of factors associated with dental erosion journal British Dental Journal volume ... There is generally widespread ignorance of the damaging effects of acid erosion this is particularly the case with erosion due to fruit juices, because they tend to be seen as healthy. ref cite web ... work publisher BBC News Online date Thursday, 2 August 2007 accessdate 2009 05 21 ref Erosion ... dental erosion. The most common cause of erosion is by acidic foods and drinks. In general, foods and drinks with a pH below 5.0&ndash 5.7 have been known to trigger dental erosion effects. ref name DentalErosionMandel cite web url http jada.ada.org cgi content full 136 1 71 title Dental erosion ... Association ref Numerous clinical and laboratory reports link erosion to excessive consumption of drinks ... acid is not the cause of erosion, but citric and phosphoric acid . Additionally, wine has been shown ... dental erosion include fruit juices , sports drinks, and carbonated drinks. Orange and apple ... juices is seen as the greater factor in dental erosion infants using feeding bottles containing fruit juices especially when used as a comforter are therefore at greater risk of acid erosion. ref name ... Guidelines in Paediatric Dentistry diagnosis, prevention and management of dental erosion journal ... influence on dental erosion journal Journal of Oral Rehabilitation volume 26 issue 12 pages 923 ... C, aspirin and some iron preparations are acidic and may contribute towards acid erosion. ref name OSullivan2008 Intrinsic acidic sources Dental erosion can occur by non extrinsic factors too. Intrinsic dental erosion is known as perimolysis, whereby gastric acid from the stomach comes into contact ... more details
Infobox album See Wikipedia WikiProject Albums Name The Erosion of Sanity Type studio Artist Gorguts Cover The Erosion of Sanity.jpg Released January 19, 1993 Recorded Genre Death metal Length 36 52 Label Roadrunner Records Roadrunner Producer Colin Richardson , Gorguts Last album Considered Dead br 1991 This album The Erosion of Sanity br 1993 Next album Obscura album Obscura br 1998 Album ratings rev1 Allmusic rev1score Rating 3 5 ref Rivadavia, Eduardo. Allmusic class album id r181335 pure url yes The Erosion of Sanity review . Allmusic . Retrieved December 9th, 2010. ref The Erosion of Sanity is the second album by Gorguts released in 1993. The Erosion of Sanity was later remastered and re released with Considered Dead as part of Roadrunner s Two From the Vault series, in 2004. And later was re released again in 2006 with 2 bonus tracks. The beginning of With Their Flesh, He ll Create appears on the clip Plunger wake up of third film in the CKY video series, CKY 3 by Bam Margera of Jackass TV series Jackass . Track listing All Music By Gorguts and All Lyrics By Luc Lemay, except where noted. tracklist total length 36 52 title1 With Their Flesh, He ll Create length1 4 03 title2 Condemned to Obscurity length2 4 51 title3 The Erosion of Sanity length3 4 54 title4 Orphans of Sickness length4 5 20 title5 Hideous Infirmity length5 4 06 title6 A Path Beyond Premonition length6 4 56 title7 Odors of Existence length7 3 48 title8 Dormant Misery length8 4 52 note8 Music & Lyrics Luc Lemay, Sylvain Marcoux 2006 Re release tracklist title9 A Path Beyond Premonition length9 5 04 note9 Bonus Demo Track title10 Disecting The Adopted length10 5 20 note10 Bonus Demo Track, later renamed Orphans of Sickness Personnel Luc Lemay Vocals, Guitars, Piano Sylvain Marcoux Guitars Eric Giguere ... DEFAULTSORT Erosion of Sanity, The Category Gorguts albums Category 1993 albums Category Albums with cover art by Dan Seagrave Category Roadrunner Records albums sv The Erosion of Sanity ... more details
Photo erosion is the dispersion of the outer layers of a prestellar core by ionizing radiation of a nearby star , thus preventing these layers from accreting onto the protostar at the centre of the core, and thereby reducing the mass of the developing object so instead of forming a star, it may form a free floating brown dwarf or planetary mass object . ref http arxiv.org pdf astro ph 0408522 The formation of free floating brown dwarves and planetary mass objects by photo erosion of prestellar cores , A. P. Whitworth, H. Zinnecker, Astronomy & Astrophysics, Volume 427, Number 1, November III 2004, Page s 299 306, DOI 10.1051 0004 6361 20041131 ref References reflist astronomy stub Category Stellar evolution Category Brown dwarfs Category Planets ca Fotoerosi ... more details
For use of Erosion in dermatopathology, see Erosion dermatopathology Image Erosion.png thumb right The erosion of the dark blue square by a disk, resulting in the light blue square. Erosion is one of two fundamental operations the other being Dilation morphology dilation in Morphological image processing from which all other morphological operations are based. It was originally defined for binary image s, later being extended to grayscale images, and subsequently to complete lattice s. Binary erosion In binary morphology, an image is viewed as a subset of a Euclidean space math mathbb R d math or the integer lattice graph grid math mathbb Z d math , for some dimension d . The basic idea in binary ... grid, and A a binary image in E . The erosion of the binary image A by the structuring element ... element B has a center e.g., a disk or a square , and this center is located on the origin of E , then the erosion ... B moves inside A . For example, the erosion of a square of side 10, centered at the origin, by a disc of radius 2, also centered at the origin, is a square of side 6 centered at the origin. The erosion ... is completely contained by A the pixel is retained, else deleted. Therefore the Erosion of A by B is given .... Properties The erosion is Translational invariance translation invariant . It is increasing ... of E belongs to the structuring element B , then the erosion is anti extensive , i.e., math A ominus B subseteq A math . The erosion satisfies math A ominus B ominus C A ominus B oplus C math , where math oplus math denotes the dilation morphology morphological dilation . The erosion is distributive over set intersection Grayscale erosion In grayscale morphology, images are Function mathematics functions ... by f x and the grayscale structuring element by b x , the grayscale erosion of f by b is given by math ... math , respectively. Moreover, let math X i math be a collection of elements from L . An erosion in math ... Digital geometry Category Mathematical morphology de Erosion Bildverarbeitung es Erosi n morfolog a ... more details
November 2011 dubious date February 2012 reason Geneticerosion is the main problem with these populations ... biology Gene pool Genetic monitoring Introgression Geneticerosion , a problem that can happen in species ...Over quotation date November 2011 Genetic pollution is a controversial ref name mixing ref name heartland term for uncontrolled ref name Genetic Pollution in Italian Wolfs 1983 ref Norman C. Ellstrand ... name GE agriculture and genetic pollution http www.greenpeace.org international campaigns genetic engineering ge agriculture and genetic pol GE agriculture and genetic pollution web article hosted ... no to genetic pollution Greenpeace, Say no to genetic pollution n.d. http www.greenpeace.org ref ref name 1994 . Bid to protect wolves from genetic pollution. Nature ref name TRAFFIC Usage Some Conservation biology conservation biologists and conservationists have used genetic pollution for a number ... population. ref name Genetic Pollution in Italian Wolfs 1983 http query.nytimes.com gst fullpage.html ... disparity in numbers, which suggests that interbreeding will become fairly common. As a result, genetic ... R. E. 2003 Corrigendum to TURNER REVIEW No. 6 Genetic pollution of native eucalypt gene pools identifying ... . Bid to protect wolves from genetic pollution. Nature Butler D. 1994 . Bid to protect wolves from genetic pollution. Nature 370 497 doi 10.1038 370497a0 ref dubious date February 2012 reason Two of three ... flow from a Genetic engineering genetically engineered GE organism to a non GE organism, ref name FAO document1 frequently by those disapproving of such gene flow. ref name GE agriculture and genetic ... wild indigenous species , which they consider undesirable. ref name Genetic Pollution in Italian Wolfs 1983 ref name potts ref name 1994 . Bid to protect wolves from genetic pollution. Nature ... genetic pollution . ref name TRAFFIC http www.traffic.org wildlife wild6.htm When is wildlife trade ... species, causing genetic pollution . In these ways, invasive species are as big a threat to the balance ... more details
Genetic variant may refer to A single nucleotide polymorphism SNP , in case it is a common genetic variant A mutation , in case it is a rare genetic variant A copy number variation disambiguation ... more details
A genetic operator is an Operator programming operator used in genetic algorithms to maintain genetic diversity , known as Mutation genetic algorithm and to combine existing solutions into others, Crossover genetic algorithm . The main difference between them is that the mutation operators operate on one chromosome, that is, they are unary, while the crossover operators are binary operators. Genetic variation is a necessity for the process of evolution . Genetic operators used in genetic algorithms are analogous to those in the natural world survival of the fittest , or selection genetic algorithm selection reproduction crossover genetic algorithm crossover , also called recombination and mutation genetic algorithm mutation . Types of Operators 1. Mutation genetic algorithm 2. Crossover genetic algorithm DEFAULTSORT Genetic Operator Category Genetic algorithms compu AI stub ar ca Operador gen tic algorisme gen tic de Genetischer Operator es Operador gen tico zh ... more details
Genetic distance refers to the genetics genetic divergence between species or between populations within a species. It is measured by a variety of parameters. Smaller genetic distances indicate a close genetic relationship whereas large genetic distances indicate a more distant genetic relationship. Genetic distance can be used to compare the genetic similarity between different species, such as humans and chimpanzees. Within a species genetic distance can be used to measure the divergence between different sub species. In its simplest form, the genetic distance between two populations is the difference ... individuals is 50.4 among Basques, 41.2 in France and 41.1 in England. Thus the genetic difference between the Basques and French is 9.2 and the genetic difference between the French and the English is 0.1 for the RH negative trait. The genetic distance of several individual traits can then be averaged to compute an overall genetic distance. ref name CavalliSforza Genes, Peoples, and Languages By L. L. Luigi Luca Cavalli Sforza ISBN 0520228731 ref Measures of genetic distance There are several measures used to indicate genetic distance. ref http www.uwyo.edu dbmcd molmark lect06 lect6.html Population Genetics IV Genetic distances biological vs. geometric approaches. ref These include Fixation index A commonly used measure of genetic distance is the fixation index which varies between 0 and 1 ... that two populations are different species. Nei s standard genetic distance This measure assumes that genetic differences arise due to mutations and genetic drift . ref cite journal last Nei et al. title SAMPLING VARIANCES OF HETEROZYGOSITY AND GENETIC DISTANCE url http www.genetics.org cgi content abstract 76 2 379 year 1973 ref Cavalli Sforza and Edwards 1967 This measure assumes that genetic differences arise due to genetic drift only. Reynolds, Weir, and Cockerham s 1983 This measure assumes that genetic differences arise due to genetic drift only. See also Human genetic variation Human ... more details
Genetic memory may refer to Genetic memory biology , present if the state of a biological system depends on its history in addition to present conditions Genetic memory psychology , a memory present at birth that exists in the absence of sensory experience Genetic memory computer science , an artificial neural network combination of genetic algorithm and the mathematical model of sparse distributed memory disambig ar es Memoria gen tica pl Pami genetyczna ... more details
about analysis of the linkage of trait biology traits due to the spatial arrangement of genes on the chromosome , an analysis which dates back to classical genetics Genetic linkage analysis of codons as defined through research on nucleic acids , which is often classed with reverse genetics Genetic code analysis of maternal inheritance related to mitochondrial DNA Mitochondrial DNA Mitochondrial inheritance medical, genealogy genealogical , legal and security applications of genetic research that are mainly directed at humans Genetic testing Genetic analysis can be used generally to describe methods both used in and resulting from the sciences of genetics and molecular biology , or to applied research applications resulting from this research. Genetic analysis may be done to identify genetic inherited disorders and also to make a differential diagnosis in certain somatic diseases such as cancer . Genetic analyses of cancer include detection of mutation s, fusion gene s, and DNA copy number changes. Genetic analyses include but are not limited to molecular technologies such as PCR , RT PCR , DNA sequencing , and DNA microarrays , and cytogenetics cytogenetic methods such as karyotyping and fluorescence in situ hybridisation . Category Genetics genetics stub ... more details
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