event is possible. It is based on a distributed computing problem called Consensus computerscience distributed consensus and has a great deal in common with the transactional replication model. This is sometimes mistakenly used as synonym of active replication . State machine replication is usually ...Replication is the process of sharing information so as to ensure consistency between redundant resources .... It could be data replication if the same data is stored on multiple data storage device storage device s, or computation replication if the same computing task is executed many times. A computational ... is typically uniform with access to a single, non replicated entity. The replication itself should ... is hidden as much as possible. It is common to talk about active and passive replication in systems that replicate data or services. Active replication is performed by processing the same request at every replica. In passive replication , each single request is processed on a single replica ... called Multi master replication multi master in the database field . In the multi primary scheme, some ... computing Load balancing is different from task replication, since it distributes a load of different ... of failure. Load balancing, however, sometimes uses data replication esp. multi master internally, to distribute its data among machines. Backup is different from replication, since it saves a copy ... lose any historical state. Replication in distributed systems Replication is one of the oldest ... can respond to queries. Replication models in distributed systems A number of widely cited models exist for data replication, each having its own properties and performance Transactional replication ... properties that transactional systems seek to guarantee. State machine replication . This model assumes .... Transactional replication is slowest, at least when one copy serializability guarantees are desired better performance can be obtained when a database uses log based replication, but at the cost ... more details
Wiktionary replicationReplication may refer to ScienceReplication scientific method is one of the main principles of the scientific method, a.k.a. reproducibility Replication statistics , the repetition of a test or complete experiment Self replication , the process in which an entity a cell, virus, program, etc. makes a copy of itself. DNA replication or DNA synthesis, the process of copying a double stranded DNA molecule Semiconservative replication , mechanism of DNA replication Self replicating machine s Computing Replicationcomputerscience , the use of redundant resources to improve reliability, fault tolerance, or performance Replication stochastic simulation , an individual run of a stochastic simulation model Replication optical media , the manufacture of CDs and DVDs by means other than burning writable discs Other Replication metallography , the use of thin plastic films to duplicate the microstructure of a component Option replication, a trading strategy to ensure at a certain date the payoff of an option without trading this option disambiguation cs Replikace fr R plication pl Replikacja ru ... more details
in Leading Strand DNA Replication journal Science volume 317 page 127 130 pmid 17615360 doi 10.1126 ...Mergeto DNA replication discuss Talk DNA replication Merge from Replication fork date May 2009 Image Replication fork.svg right thumb Scheme of the replication fork. br a template, b leading strand, c lagging strand, d replication fork, e primer, f Okazaki fragments The replication fork is a structure that forms within the nucleus during DNA replication . It is created by helicase s, which break the hydrogen bond s holding the two DNA strands together. The resulting structure has two branching prongs , each one made up of a single strand of DNA. These two strands serve as the template for the leading ... strand template. Replication Image DNA replication en.svg thumb 450px right DNA replication ... replication fork . DNA has a ladder like structure imagine a ladder broken in half vertically ... of replication goes differently for the two strands comprising the DNA double helix . Leading strand ... that is being continuously polymerized towards the replication fork. All DNA synthesis occurs 5 3 ... opposite to the movement of the growing fork. It grows away from the replication fork and it is synthesized discontinuously. Because the strand is growing away from the replication fork, it needs ... opens to be able to put the primer. The RNA Polymerase reaches the origin of replication and stops replication until a new RNA primer is placed. These fragments of DNA produced on the lagging strand ... continual synthesis. As a result, replication of the lagging strand is more complicated than replication ... R. Barry Stephen D. Bell date 12 2006 title DNA Replication in the Archaea journal Microbiology and Molecular ... . DNA ligase joins the fragments together. See also DNA replicationReplication fork for context References Reflist External links http web.virginia.edu Heidi chapter30 chp30.htm DNA Replication and Repair DNA replication Category DNA replication cs Replika n vidlice es Horquilla de replicaci n ... more details
Citations missing date May 2008 Geo replication systems improve the distribution of data across geographically distributed Computer networking data networks . This enables improved end user experience of data heavy applications such as web portal s. Geo replication can be achieved using software, hardware or a combination of the two. Geo replication software Geo replication software is a network performance enhancing technology that is designed to provide improved access to portal or intranet content for uses at the most remote parts of large organizations. It is based on the principle of storing complete replicas of portal content on local servers, and then keeping the content on those servers up to date using heavily compressed data updates. Portal acceleration Geo replication technologies are used to provide replication of the content of portals, intranets, web applications, content and data between servers, across wide area networks Wide area network WAN to allow users at remote sites to access central content at Local area network LAN speeds. Geo replication software can dramatically increase the performance of data networks that suffer limited Bandwidth computing bandwidth , Latency ... over a WAN giving remote sites rapid access to web applications. Geo replication software solutions ... experience of a portal by accelerating its performance. Portal replication Remote users of web portals .... Geo replication technology is deployed to accelerate the remote end user portal performance ... data updates across a portal, geo replication systems often use differencing engine technologies ..., at the byte level, is ever sent to a server twice. Offline portal replication on laptops Advert date May 2008 Geo replication systems are often extended to deliver local replication beyond the server and down to the laptop used by a single user. Server to laptop replication enables mobile users to have ... forces. Geo replication systems col begin col 2 Infonic Syntergy Colligo Contributor See also Load ... more details
In engineering , science , and statistics , replication is the repetition of an experiment al condition so that the variability associated with the phenomenon can be estimated. ASTM , in International standard standard E1847, defines replication as the repetition of the set of all the treatment combinations to be compared in an experiment. Each of the repetitions is called a replicate . Replication is not the same as repeated measurement s of the same item they are dealt with differently in statistical experimental design and data analysis . For proper Sampling statistics sampling , a process or batch of products should be in reasonable statistical control inherent random variation is present but variation due to assignable special causes is not. Evaluation or testing of a single item does not allow for item to item variation and may not represent the batch or process. Replication is needed to account for this variation among items and treatments. Example As an example, consider a continuous process which produces items. Batches of items are then processed or treated. Finally, tests or measurements are conducted. Several options might be available to obtain ten test values. Some possibilities are One finished and treated item might be measured repeatedly to obtain ten test results. Only one item was measured so there is no replication. The repeated measurements help identify observational error . Ten finished and treated items might be taken from a batch and each measured once. This is not full replication because the ten samples are not random and not representative of the continuous nor batch processing. Five items are taken from the continuous process based on sound statistical sampling. These are processed in a batch and tested twice each. This includes replication of initial ... twice each. This plan includes proper replication of initial samples and also includes batch to batch ... collection state collapsed Experimental design DEFAULTSORT Replication Statistics Category Design ... more details
Self replication is any behavior of a dynamical system that yields construction of an identical ... prion proteins are capable of evolution ref Computer virus es reproduce using the hardware and software already present on computers. Self replication in robotics has been an area of research and a subject of interest in science fiction . Any self replicating mechanism which does not make a perfect ... a crystal . Classes of self replication Recent research http www.MolecularAssembler.com KSRM 5.1.htm ..., including 1 Replication Control, 2 Replication Information, 3 Replication Substrate, 4 Replicator ..., 9 Replication Process, 10 Replicator Performance, 11 Product Structure, and 12 Evolvability. A self reproducing computer program main Quine computing In computerscience a self reproducing computer program is a computer program that, when executed, outputs its own code. This is also called a Quine ... replicating tiling Image Self replication of sphynx hexidiamonds.svg frame Four sphinx hexiamonds can ... self replication avoids the costs of labour economics labor , Capital economics capital and distribution ... insights and advances. A variation of self replication is of practical relevance in compiler construction, where a similar chicken and egg problem occurs as in natural self replication. A compiler phenotype .... This process differs from natural self replication in that the process is directed by an engineer, not by the subject itself. Mechanical self replication main self replicating machine An activity in the field of robots is the self replication of machines. Since all robots at least in modern ... goo version of Armageddon , as featured in such science fiction novels as Bloom novel Bloom , Prey ... in mechanical self replication. ref http foresight.org guidelines Molecular Nanotechnology ... age see mass production . Fields involving study of self replication Most of the research has occurred in a few areas Biology studies natural replication and replicators, and their interaction. These can ... more details
Computing pages 43 57 doi 10.1145 93385.93399 ref is a strategy for Replication 28computer science 29 replication in which replicas are allowed to diverge. Traditional pessimistic replication systems ...Optimistic replication ref name saito2005 Cite journal last1 Saito first1 Yasushi last2 Shapiro first2 Marc title Optimistic replication journal ACM Computing Surveys volume 37 issue 1 pages 42 81 year 2005 doi 10.1145 1057977.1057980 postscript None ref also known as lazy replication ref name Ladin1992 cite journal author Ladin, R. coauthors Liskov, B. Shrira, L. Ghemawat, S. year 1992 title Providing high availability using lazy replication journal ACM Transactions on Computer Systems volume 10 ..., R. coauthors Liskov, B. Shrira, L. year 1990 title Lazy replication exploiting the semantics of distributed ... a single copy of the data all along. Optimistic replication does away with this in favor ... either difficult or even insoluble. Algorithms An optimistic replication algorithm consists of five .... Examples One well known example of a system based on optimistic replication is the Concurrent Versions ... the changes which a user pushes, they are permanently committed. A special case of replication ... Digital Assistant personal digital assistants PDAs allow users to edit data either on the PDA or a computer, and then to Merge 28revision control 29 merge these two datasets together. Note, however, that replication ... See http tools.ietf.org html rfc677 Rfc677 Multi master replication Multi master database replication ref name Gray1996 cite conference author Jim Gray computer scientist Gray, J. coauthors Helland, P. Patrick O Neil O Neil, P. Dennis Shasha Shasha, D. year 1996 title The dangers of replication and a solution ... in which replication delays become particularly noticeable is when the database system is at a high .... The replication behaviour of such an installation may differ from a live environment in ways that mean that replication lag is unlikely to be observed in testing masking replication sensitive ... more details
Strand DNA Replication journal Science volume 317 pages 127 130 pmid 17615360 doi 10.1126 science.1144067 ...Merge from Replication fork discuss Talk DNA replication Merge from Replication fork date May 2009 Image DNA replication split.svg thumb 200px right DNA replication. The double helix is unwound and each ... partner strands. DNA replication is a biological process that occurs in all life on Earth living organisms ... strand, a process referred to as semiconservative replication . Cellular Proofreading Biology proofreading and error toe checking mechanisms ensure Mutation near perfect fidelity for DNA replication ...,kgi?rid stryer.chapter.3740 Chapter 27 DNA Replication, Recombination, and Repair ref ref cite ... year 2002 publisher Garland Science isbn 0 8153 3218 1 http www.ncbi.nlm.nih.gov books bv.fcgi?rid mboc4.chapter.747 Chapter 5 DNA Replication, Repair, and Recombination ref In a cell biology cell , DNA replication begins at specific locations in the genome, called origin of replication origins ...?rid stryer.section.3794 Chapter 27, Section 4 DNA Replication of Both Strands Proceeds Rapidly ... a replication fork . In addition to DNA polymerase , the enzyme that synthesizes the new DNA by adding ... and assist in the initiation and continuation of DNA synthesis. DNA replication can also be performed ... strand. ref Alberts, B., et.al., Molecular Biology of the Cell, Garland Science, 4th ed., 2002 ... all forms of DNA replication. ref cite book author Berg JM, Tymoczko JL, Stryer L, Clarke ND title ... nucleotide is also lost. Replication process Main Prokaryotic DNA replication Eukaryotic DNA replication ... Garland Science isbn 0 8153 3218 1 http www.ncbi.nlm.nih.gov books bv.fcgi?rid mboc4.section.754 Chapter 5 DNA Replication Mechanisms ref This process is initiated at particular points in the DNA, known as origin of replication origin s , which are targeted by proteins that separate the two strands and initiate DNA synthesis. ref name origins Origins contain DNA sequences recognized by replication ... more details
The origin of replication also called the replication origin is a particular sequence in a genome at which replication is initiated. ref http www.blackwellpublishing.com wagner glossary.pdf Technical Glossary ..., Blackwell publishing, 2007 ISBN 1 4051 4715 6 ref This can either be DNA replication in living organisms such as prokaryotes and eukaryotes, or RNA replication in RNA virus es, such as double stranded RNA viruses . DNA replication may proceed from this point bidirectionally or unidirectionally. The specific structure of the origin of replication varies somewhat from species to species, but all share some common characteristics such as high AT content AT content . The origin of replication binds the pre replication complex , a protein complex that recognizes, unwinds, and begins to copy DNA. Types The two types of replication origin are Narrow or broad host range High or low copy number There are also significant differences between prokaryotic and eukaryotic origins of replication Bacteria have a single circular molecule of DNA, and typically only a single origin of replication per circular chromosome. ref cite journal author Mott ML, Berger JM title DNA replication initiation mechanisms ... origins of replication along this circular chromosome. ref cite journal author Kelman LM, Kelman Z title Multiple origins of replication in archaea journal Trends Microbiol. volume 12 issue 9 pages ... origins of replication on each linear chromosome that initiate at different times replication timing ..., Bauerschmidt C, Grosse F, Weisshart K title Initiation of eukaryotic DNA replication regulation and mechanisms ... doi 10.1016 S0079 6603 02 72067 9 ref Having many origins of replication helps to speed the duplication ... starting from each unique replication origin is called a replicon genetics replicon . Origins of replication ... pairs. DNA replication begins at a single origin of replication. Replication origin is known as oriC ... 9 mer repeats. Ten to 20 monomers of the replication protein dnaA bind to the 9 mer repeats, and the DNA ... more details
Synthesis not in ring G sub 0 sub G0 phase Gap 0 Resting . Replication Timing refers to the order in which segments of DNA along the length of a chromosome are duplicated. DNA Replication Image ReplicationDomains.jpg thumb left 210px Figure 2 Replication proceeds via the nearly synchronous firing of clusters of replication origins that replicate segments of chromosomal DNA Replication domains at defined ... sequence of replication. In eukaryotic cells cells that package their DNA within a nucleus , chromosomes ... cells after the next cell division. The process of duplicating DNA is called DNA replication ... DNA replication origins, followed by an unzipping process that unwinds the DNA as it is being copied. However, replication does not start at all the different origins at once. Rather, there is a defined ... segment. Replication does not necessarily start at exactly the same origin sites every time ... each segment replication starts. Figure 2 shows a cartoon of how this is generally envisioned to occur ... cell. Replication Timing Profiles Image ReplicationTimingAnim.gif thumb left 250px Figure 4 A diagrammatic representation of replication timing in a 70 Mb segment of human chromosome 2. The red horizontal ... positive values on the y axis indicating earlier replication. A smoothed line blue is drawn through the data to visualize the domains of different replication timing. Red bands at the top of the image show DNA that has been replicated at the given time in S phase. The temporal order of replication of all the segments in the genome, called its replication timing program, can now be easily measured ... replication. Nat Rev Genet 11 673 684. ref . One way literally and simply measures the amount of the different ... order of replication along the length of each chromosome can be plotted in graphical form to produce a replication timing profile . Figure 4 shows an example of such a profile across 70,000,000 ... J, Itoh M, Kulik M, et al. 2010 Evolutionarily conserved replication timing profiles predict long range ... more details
Pfam box Symbol RPA C Name Replication protein A C terminal Pfam PF08784 InterPro IPR014892 PROSITE PDB PDB 1dpu Replication protein A RPA is a protein that binds single stranded DNA in eukaryotic cells. ref cite journal title Replication protein A heterotrimeric, single stranded DNA binding protein required for eukaryotic DNA metabolism last Wold first MS journal Annual Review of Biochemistry year 1997 volume 66 issue 1 pages 61 92 doi 10.1146 annurev.biochem.66.1.61 pmid 9242902 ref During DNA replication , RPA prevents single stranded DNA ssDNA from winding back on itself or from forming secondary structures. This keeps DNA unwound for the polymerase to replicate it. RPA also binds to ssDNA during the initial phase of homologous recombination , an important process in DNA repair and Meiosis Prophase I prophase I of meiosis . Like its role in DNA replication, this keeps ssDNA from binding to itself self complementizing so that the resulting nucleoprotein filament can then bound by RAD51 Rad51 and its cofactors. ref cite journal title Homologous recombination in DNA repair and DNA damage tolerance last1 Xuan first1 L last2 Wolf Dietrich first2 H journal Cell Research year 2008 volume 18 issue 99 pages 99 113 doi 10.1038 cr.2008.1 pmid 18166982 ref A bacterial homolog is called single strand binding protein SSB . References reflist Category Genetics genetics stub DNA replication DNA repair es Prote na de replicaci n A fr Prot ine de R plication A ru ... more details
, the virus is able to continue infecting new hosts. Replication between viruses is greatly ... have differing replication strategies themselves. David Baltimore , a Nobel Prize winning biologist ... on their unique replication strategy. There are seven different replication strategies based on this system ... viruses, encode their own replication factors. However, in either cases, replication of the viral genome is highly dependent on a cellular state permissive to DNA replication and, thus, on the cell ... . They replicate within the nucleus, and form a double stranded DNA intermediate during replication ... RNA viruses do not rely on host polymerases for replication to the extent that viruses with DNA ... two major families, the Reoviridae and Birnaviridae . Replication is monocistronic and includes ... consist of two types, however both share the fact that replication is primarily in the cytoplasm, and that replication is not as dependent on the cell cycle as that of DNA viruses. This class ... be divided into two groups Viruses containing nonsegmented genomes for which the first step in replication ... that serves as template for production of the negative strand genome is then produced. Replication is within the cytoplasm. Viruses with segmented genomes for which replication occurs in the Cell nucleus ... each genome segment. The largest difference between the two is the location of replication. Examples ..., which is spliced into the host genome using integrase . Replication can then commence with the help ... more details
movenotice date August 2011 Replication , in metallography , is the use of thin plastic films to nondestructively duplicate the microstructure of a component. The film is then examined at high magnification s. Replication is a method of copying the topography of a surface by casting or impressing material onto the surface. It is the commonly used technique to duplicate surfaces that are inaccessible in metrology to other forms of nondestructive testing . Image Staphylococcus aureus, 50,000x, USDA, ARS, EMU.jpg right thumb Staphylococcus aureus platinum replica image shot on a TEM at 50,000X magnification The replicas may be imaged in the light microscope or coated with heavy metals, the replicating film melted away, and the heavy metal replica imaged in a Transmission Electron Microscopy Transmission Electron Microscope TEM . The same materials, cellulose acetate film s, are used for creating replicas of biological materials such as bacteria. Category Metallurgy Category Nondestructive testing Industry stub ... more details
Refimprove date May 2008 Synthetic replication is the process by which a financial asset s payoff is exactly replicated by trading other securities. ref citebook title Applied Equity Valuation author T. Daniel Coggin, Frank J. Fabozzi year 1998 publisher John Wiley and Sons isbn 1883249511 ref For instance Black Scholes theory claims vanilla option pricing can be achieved through the use of stock and zero coupon bond . References refs Category Finance Business stub ... more details
. According to the semi conservative theory, after one replication of DNA, we should obtain ... that only one line appeared after one replication. In order to conclude between those two, DNA ... of abnormal base O 6 ethylguanine, which is further misrecognized during DNA replication and paired ... should expect the segregation between daughter strands into different cells after replication, which ... of Nucleic Acids References references Category DNA replication cs Semikonzervativnost ko ja ... more details
Computerscience or computing science abbreviated CS is the study of the theoretical foundations of information ..., and transform information and formulate suitable abstraction computerscience abstraction s to design and model complex system s. ref Cite doi 10.1145 63238.63239 Computerscience and engineering ..., P. title Research paradigms in computerscience booktitle Proceedings of the 2nd international ... 15, 1976 publisher IEEE Computer Society Press, Los Alamitos, CA quote Computerscience is the study of information structures ref Computerscience has many sub fields some, such as computational complexity ... graphics computersciencecomputer graphics , emphasize the computation of specific results ... s having careers in information technology , or think that computerscience relates to their own ... processing. However, the focus of computerscience is more on understanding the properties of the programs ... myths ComputerScience Department , University of Cambridge ref div class thumb tright div class ... graphics link Computer graphics computerscience File 3 Tastenmaus Microsoft.jpg 94px alt Microsoft ... interaction div class thumbcaption Computerscience deals with the theoretical foundations of information ... div div History Main History of computerscience The earliest foundations of what would become computerscience predate the invention of the modern digital computer . Machines for calculating fixed ... science broadened to study computation in general. Computerscience began to be established as a distinct ... Cl.cam.ac.uk date accessdate 2011 11 19 ref The world s first computerscience degree program, the Cambridge Diploma in ComputerScience , began at the University of Cambridge Cambridge Computer Lab Computer Laboratory in 1953. The first computerscience degree program in the United States was formed at Purdue University in 1962. ref http www.cs.purdue.edu feature conte.html Computerscience ... brand that formed part of the computerscience revolution during this time. IBM short for International ... more details
teapot , an iconic model in 3D computer graphics created by Martin Newell computer scientist Martin Newell in 1975. Computer graphics is a sub field of computerscience which studies methods for digitally ... Processing , http www.eg.org events Symposium on Rendering, and Symposium on Computer Animation . As in the rest of computerscience, conference publications in computer graphics are generally more ... at Korea Advanced Institute of Science and Technology KAIST http www.tecgraf.puc rio.br Computer ...dablink This article is about the scientific discipline of computer graphics. For other uses see Computer ... computer graphics three dimensional computer graphics , it also encompasses 2D computer graphics two dimensional graphics and image processing . Overview Computer graphics studies the manipulation .... Computer graphics is often differentiated from the field of visualization graphic visualization , although ... visualization Computer vision Image processing Computational geometry Computational topology Applied mathematics Applications of computer graphics include Special effect Special effects Visual effects Video game Video games Digital art History One of the first displays of computer animation ... and journals where the most significant results in computer graphics are published. Among them ... An extensive history of computer graphics can be found at http accad.osu.edu waynec history lessons.html this page . ref Subfields in computer graphics A broad classification of major subfields in computer ... geometric quantities for the discrete surfaces used in computer graphics. ref name columbia ddg ... with light . See Rendering computer graphics for more information. Transport light transport theory ... in computer graphics multicol Jim Blinn Jack E. Bresenham Loren Carpenter Edwin Catmull Robert L. Cook Paul Debevec Ronald Fedkiw Ron Fedkiw James D. Foley multicol break David Forsyth computer ... See also multicol 3D computer graphics Cloth modeling Computer facial animation Digital geometry Digital ... more details
Multi master replication is a method of database replicationcomputersciencereplication which allows ... computerscience Synchronous multi master replication uses Oracle s two phase commit functionality ... either Synchronization computerscience synchronously or asynchronous ly. Implementations Many directory ... Software Databases Replication DMOZ Open Directory Project Database Replication Page Category Computer ... replication system is responsible for propagating the data modifications made by each member to the rest ... members. Multi master replication can be contrasted with Master slave computers master slave replication, in which a single member of the group is designated as the master for a given piece ... consistency among the members of the group, but is less flexible than multi master replication. Advantages ... in several physical sites, i.e. distributed across the network. Disadvantages Most multi master replication .... Eager replication systems are complex and increase communication latency engineering latency . Issues ... master replication. Active Directory One of the more prevalent multi master replication implementations ... replication. It is not required for all domain controllers to replicate with each other domain controller ... fashion without excessive replication traffic. Some Active Directory needs are however better served by Flexible single master operation . CA Directory CA Directory supports multi master replication. OpenDS OpenDS implements multi master replication since its version 1.0. The OpenDS multi master replication is asynchronous, it uses a log with a publish subscribe mechanism that allows scaling to a large number of nodes. OpenDS replication does conflict resolution at the entry and attribute level. OpenDS replication can be used over a Wide Area Network . OpenLDAP The widely used open source LDAP server implements multi master replication since its version 2.4 October 2007 http www.openldap.org software roadmap.html . Oracle Oracle database Computer cluster clusters implement multi master ... more details
File Replication Service is a Microsoft Windows Server service for distributing shared files and Group Policy Objects. It replaced the Windows NT Lan Manager Replication service ref Microsoft, Transitioning to File Replication Service, http technet.microsoft.com en us library cc960677.aspx ref , and has been partially replaced by Distributed File System Microsoft Distributed File System Replication ... the File Replication Service FRS detects a change to a file, such as the creation of a new file or the modification ... Servers that work together to provide this service are called Replication Partners . To control file replication Use the Active Directory Sites and Services from Administrative Tools . Select the Sites ... Replication In Windows Server 2003 R2 and Windows Server 2008 , DFS Replication ref cite web url ... as well as the File Replication Service . DFS Replication is a state based replication engine for file replication among Distributed File System Microsoft DFS shares , which supports replication ... includes a DFS Replication Service which is limited to peer to peer DFS Replication service groups. ref http support.microsoft.com kb 930516 en us A Windows Vista based client computer does not participate in the replication process if you add the client computer to a DFS Replication service group by using the DFS Management snap in on a Windows Servers 2003 R2 based computer ref FRS is still used for SYSVOL replication, but optionally, DFS replication may be used instead of FRS replication for SYSVOL ... 2008 domain controllers, SYSVOL replication is performed using DFS replication, by default ref http blogs.technet.com b askds archive 2008 05 22 verifying file replication during the windows server 2008 dfsr sysvol migration down and dirty style.aspx Verifying File Replication during the Windows ... Techet. Accessed 5 4 2011 ref although NTFRS replication is also supported. On Windows Server 2008 R2 up level domain controllers, SYSVOL replication is performed using DFS replication, and NTFRS replication ... more details
DNA replication in eukaryotes is much more complicated than in prokaryotes , although there are many similar aspects. Eukaryotic cells can only initiate DNA replication at a specific point in the cell cycle, the beginning of S phase . Mechanism Location in cell cycle DNA replication in eukaryotes occurs only in the S phase of the cell cycle . However, pre initiation occurs in the G1 phase . Thus, pre ... in the right order, making it very unlikely that replication take place more than once per cell cycle ... of replication origins of replication . Some origins are well characterized, such as the autonomously ... is similar in both the protozoa and metazoa . Preparation in G1 phase The first step in DNA replication is the formation of the Pre replication complex pre initiation replication complex the pre ... as licensing, but a licensed pre RC cannot initiate replication in the G1 phase Current models hold that replication begins with the binding of the origin recognition complex ORC to the origin. This complex is a hexamer of related proteins and remains bound to the origin, even after DNA replication ... complex then recruits another protein called Cdc45 , which then recruits all of the DNA replication proteins to the replication fork. At this stage the origin fires and DNA synthesis begins. Activation of a new round of replication is prevented through the actions of the cyclin dependent kinases .... Cells in the G0 stage of the cell cycle are prevented from initiating a round of replication because ... s are involved in the replication of DNA in animal cells POL , Pol and POL . Polymerase DNA directed ... ref cite journal author Elizabeth R. Barry Stephen D. Bell date 12 2006 title DNA Replication ..., Z.F. et al. date 2007 title Yeast DNA Polymerase Participates in Leading Strand DNA Replication journal Science volume 317 page 127 130 pmid 17615360 doi 10.1126 science.1144067 pages 127 30 issue ... DNA replication References reflist DNA replication Category DNA replication tr karyotlarda DNA ikile mesi ... more details
Context date October 2009 Main CD manufacturing date July 2007 In optical disc manufacturing, replication is the process of producing discs via methods that do not involve burning blank CD , DVD or other discs the latter is known as Optical disc authoring duplication . The replication of optical discs involves the creation of a glass Master recording master from a client original master. the creation of a nickel Injection molding Mold stamper from that glass master. the injection molding of clear optical grade polycarbonate Substrate materials science substrate s clear discs from that stamper. the metallizing and lacquer ing of those substrates to produce compact discs and DVDs. References Bennett, Hugh. The Demise of Low Run CD Replication. EMedia Professional Aug 1999. http www.newcyberian.com cd manufacturing.html How compact discs are made Explained by a layman for the laymen Kevin McCormick Category 120 mm discs compu storage stub ... more details
PBB geneid 81620 DNA replication factor Cdt1 is a protein that in humans is encoded by the CDT1 gene ... CDT1 in DNA replication and chromatin licensing journal J Cell Sci volume 115 issue Pt 7 pages ... H, Taraviras S, Lygerou Z, Nishimoto T title The human licensing factor for DNA replication ... name entrez cite web title Entrez Gene CDT1 chromatin licensing and DNA replication factor 1 url http ... to license DNA by forming the pre replication complex pre RC . Its activity during the cell cycle ... during S phase in order to prevent re replication of DNA and prevents it from ubiquitination and subsequent ..., Cvetic C, Walter JC, Dutta A title Inhibition of eukaryotic DNA replication by geminin binding to Cdt1 journal Science volume 290 issue 5500 pages 2309 12 year 2000 month December pmid 11125146 doi 10.1126 science.290.5500.2309 url ref Orthologs CDT1 belongs to a family of replication proteins conserved ... requirement for DNA replication and inhibition of mitosis journal EMBO J. volume 13 issue 2 pages ... 6778 doi 10.1038 35007104 ref Interactions DNA replication factor CDT1 has been shown to Protein ... Skp2 ubiquitin ligase complex interacts with the human replication licensing factor Cdt1 and regulates ... without DNA replication. The overexpression of Cdt1 causes rereplication in H. sapiens, which activates ... proper initiation of DNA replication journal J. Biol. Chem. volume 280 issue 8 pages 6253 ..., Lygerou Z, Nishimoto T, Nurse P title The Cdt1 protein is required to license DNA for replication in fission ... a conserved, essential replication protein that colocalizes with the origin recognition complex and links DNA replication with mitosis and the down regulation of S phase transcripts. journal Genes Dev ... JA, Dwyer BT, Dhar SK, et al. title Inhibition of eukaryotic DNA replication by geminin binding to Cdt1. journal Science volume 290 issue 5500 pages 2309 12 year 2001 pmid 11125146 doi 10.1126 ... Q, Liao R, et al. title The SCF Skp2 ubiquitin ligase complex interacts with the human replication licensing ... more details
Refimprove date December 2009 The replication factor C , or RFC, is a five subunit ref MeshName Replication Protein C ref protein complex that is required for DNA replication . The Protein subunit subunits of this heteropentamer are named RFC1 Rfc1 , RFC2 Rfc2 , RFC3 Rfc3 , RFC4 Rfc4 , and RFC5 Rfc5 in S. cerevisiae . RFC is used in eukaryotic replication as a clamp loader, similar to the Complex in E. coli . Its role as clamp loader involves catalysing the loading of Proliferating Cell Nuclear Antigen PCNA on to DNA. It binds to the 3 end of the deoxyribonucleic acid DNA and uses ATP hydrolysis to open the ring of PCNA so that it can encircle the DNA. References Reflist DNA replication DEFAULTSORT Replication Factor C Category DNA replication Protein stub ... more details
File EukPreRC.jpg thumb 330px A simplified schematic of the loading of the eukaryotic pre replication complex Refimprove date December 2011 A pre replication complex pre RC is a protein complex that forms at the origin of replication during the initiation step of DNA replication . Formation of the pre RC is required for DNA replication to occur. Complete and faithful replication of the genome ensures ... origin of replication oriC . The archaeal pre RC is very different from the prokaryotic pre ... protein, MCM9, which helps load the MCM heterohexamer onto the origin of replication. ref name Bryant Recognition of the origin of replication Recognition of the origin of replication is a critical ... have 1 3 origins of replication. The origins are generally AT rich tracts that vary based on the archaeal ... dependent fashion. Eukaryotes typically have multiple origins of replication at least one per ... topology. The ORC4 protein is known to bind the AT rich portion of the origin of replication in S. pombe ... name Sun Loading of the pre replication complex Assembly of the pre replication complex only occurs .... This timing and other regulatory mechanisms ensure that DNA replication will only occur once ... complex pre RC. After ORC1 6 bind the origin of replication, Cdc6 is recruited. Cdc6 recruits ... that there may be multiple MCM heterohexamers bound to each origin of replication. ref name Bryant Initiation of replication After the pre RC is formed it must be activated and the replisome assembled in order for DNA replication to occur. In prokaryotes, DnaA hydrolyzes ATP in order to unwind .... Single strand binding protein s stabilize the newly formed replication bubble and interact with the DnaG primase . DnaG recruits the replicative DNA polymerase III, and replication begins. In eukaryotes ... the replicative DNA polymerase and its primase. DNA replication can then begin. ref name Takisawa Prevention of pre replication complex re assembly During each cell cycle, it is important ... more details
D loop replication is a process by which chloroplast s and mitochondria replicate their genetic material. An important component of understanding D loop replication is that many chloroplast s and mitochondria have a single circular chromosome like bacterium bacteria instead of the linear chromosome s found in eukaryote s. However, it should be remembered that many cloroplasts s and mitochondria have a linear chromosome, and D loop replication is not important in these organelles. In many organisms, one strand of DNA in the plastid comprises heavier nucleotide s relatively more purine s adenine and guanine . This strand is called the H heavy strand. The L light strand comprises lighter nucleotides pyrimidine s thymine and cytosine . Replication begins with replication of the heavy strand starting at the D loop also known as the control region . An origin of replication opens, and the heavy strand is replicated in one direction. After heavy strand replication has continued for some time, a new light strand is also synthesized, through the opening of another origin of replication. When diagramed, the resulting structure looks like the letter D. The D loop region is important for phylogeography phylogeographic studies. Because the region does not code for any genes, it is free to vary with only a few natural selection selective limitations on size and heavy light strand factors. The mutation rate is among the fastest of anywhere in either the nuclear or mitochondrial genomes in animals. Mutation s in the D loop can effectively track recent and rapid evolution ary changes such as within species and among very closely related species. See also D loop mtDNA useful in organisation of nucleoid of mitochondria. organelle s. References Russell, P. J. 2002. iGenetics . Benjamin Cummings, San Francisco. Category DNA Burger, et al. 2003. Unique mitochondrial genome architecture in unicellular relatives of animals . PNAS 100 3 892 897. genetics stub ... more details
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