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Learn more about Persistence of vision in the online encyclopedia.   (Site not responding. Last check: 2007-09-17) According to the theory of persistence of vision, the perceptual processes of the brain or the retina of the human eye retains an image for a split second. Persistence of vision should be compared with the related phi phenomenon. The frequency at which flicker becomes invisible is called the flicker fusion threshold, and is dependent on the level of illumination. www.onlineencyclopedia.org /p/pe/persistence_of_vision_1.html   (702 words)

Persistence - Wikipedia, the free encyclopedia Persistence allows, for example, a program to be restarted and reloaded with the data structures from a previous invocation of the program. When first introduced, the idea was that persistence should be an intrinsic property of the data, in constrast with the traditional approach where data is read and written to disk using imperative verbs in a programming language. In mathematics, the additive or multiplicative persistence of a number is how often one has to replace that number with the sum or product of its digits until one arrives at a single digit. en.wikipedia.org /wiki/Persistence   (363 words)

Persistence Of Vision Encyclopedia Article, Definition, History, Biography   (Site not responding. Last check: 2007-09-17) Persistence of vision should be compared with the related phenomena of beta movement and phi movement. Persistence of vision does not work at such a low image rate, and the motion may be objectionably jerky. Persistence of vision was used to create a number of optical toys that were popular before movies. encyclopedia.localcolorart.com /encyclopedia/Persistence_of_vision   (1078 words)

Persistence   (Site not responding. Last check: 2007-09-17) Persistence is the term used in computer science to describe a capability used by a computer programmer to store data structures in non-volatile storage such as a file system or a relational database. Persistence allows, for example, a program to be restarted and re-loaded with the data structures from a previous invocation of the program. Persistence also refers to the ability to retain previous versions of a data structure after it is modified; see persistent data structure. www.yotor.com /wiki/en/pe/Persistence.htm   (177 words)

Introduction to Persistence (Internet Explorer - DHTML) Persistence enables authors to specify an object to persist on the client during the current and later sessions using Dynamic HTML (DHTML) behaviors. Since persisted information maintains a similar same-domain security structure as cookies, the client can be assured that rogue Web sites will not glean such information from their computers. Persistent elements are identified with a CLASS and an ID property. msdn.microsoft.com /workshop/author/persistence/overview.asp   (1540 words)

Which way to the moon?: Persistence   (Site not responding. Last check: 2007-09-17) You are probably right, i'm not a professional on persistence infact persistence is tough for me because i want to see results right away, but that doesn't mean that i can't say anything about it. If we were all persistent you would make it better, things would be so advanced it would be a huge difference, but of course we all aren't persistent. Persistence is one of the hardest attribute to have. sdmack.blogspot.com /2004/12/persistence.html   (434 words)

Persistence Method: today equals tomorrow The method a forecaster chooses depends upon the experience of the forecaster, the amount of information available to the forecaster, the level of difficulty that the forecast situation presents, and the degree of accuracy or confidence needed in the forecast. The first of these methods is the Persistence Method; the simplest way of producing a forecast. The persistence method assumes that the conditions at the time of the forecast will not change. ww2010.atmos.uiuc.edu /(Gh)/guides/mtr/fcst/mth/prst.rxml   (304 words)

Log Canoe Association - The Canoes - Persistence   (Site not responding. Last check: 2007-09-17) The "Persistence" was built in the 1890's, possibly by John B. Harrison of Tilghman Island. Her hull is constructed of five pine logs with rising planks from the waterline to the sheer. She is distinctive in the fact that she was designed and used as a commercial working canoe for hand tonging oysters until 1966. www.logcanoes.com /canoes/persistence.htm   (299 words)

Database Programming with JDBC and Java, Second Edition: Chapter 9: Persistence Persistence is the act of making the state of an application stretch through the end of this process instance of the application to the next. When that transaction is notified that it is complete, it creates a persistence transaction--in your case, a JDBC transaction--and tells each object modified in the business transaction to insert, update, or delete itself in the persistent store. If a business component is independent of the persistence logic, it requires no changes should the persistence logic change; even if that change involves a migration to a new database engine or even a new persistence mechanism. www.oreilly.com /catalog/jdbc2/chapter/ch09.html   (2705 words)

PERSISTENCE OF VISION It is sometimes said that to ensure a flickerless, apparently continuous image, as explained in (1), persistence of vision is necessary, and that apparent motion (2) is a psychological effect of the brain. So even if 'persistence' were necessary for conventional projection with an intermittent shutter projector, the existence of systems that do not have blanking periods means that it can hardly be considered important to our understanding of how we perceive apparent motion in motion pictures. Even the suggestion that 'persistence' ensures that we do not see flicker in a conventional projection system is in fact not the case, for there is another problem with this 'persistence' or after-image theory. www.grand-illusions.com /percept.htm   (1487 words)

Long-Term Persistence for JavaBeans At the heart of this issue is the question of persistence and how a design can be saved in a format that is not tied to the tool that created it. The new persistence model is designed to handle the process of converting a graph of JavaBeans to and from a persistent form. This formal separation allows the majority of the internal architecture and any special-case code that changes the way the state of a particular class is archived to be written in a form that is independent of the syntax of the output format. java.sun.com /products/jfc/tsc/articles/persistence   (2096 words)

A longitudinal study of Web pages continued: a consideration of document persistence. Web documents, Half-life, ... A half-life is that period of time required for half of a defined Web literature to disappear (or for one group of isotopes or atoms to decay into another). Its focus is Web page persistence and reports findings from a continuing longitudinal study extending more than 325 weeks from December 1996 to May 2003. The Scholarly Societies Project at the University of Waterloo is among the first to have adopted a collection strategy based on the format of the URL. informationr.net /ir/9-2/paper174.html   (3917 words)

Orthogonal Persistence   (Site not responding. Last check: 2007-09-17) The persistence of data in a computer system is the length of time for which the data exists; this may range from the very short to the very long. In the first case the data persists for a brief fraction of a single program execution, while in the second the data may outlive the programs that operate on it. In an orthogonally persistent programming system, the manner in which data is manipulated is independent of its persistence. www-ppg.dcs.st-and.ac.uk /Research/Persistence   (360 words)

PERSISTENCE - Definition The quality or state of being persistent; staying or continuing quality; hence, in an unfavorable sense, doggedness; obstinacy. The continuance of an effect after the cause which first gave rise to it is removed; as: (a) (Physics) The persistence of motion. (b) (Physiol.) Visual persistence, or persistence of the visual impression; auditory persistence, etc. www.hyperdictionary.com /dictionary/persistence   (225 words)

Bnoopy: Persistence Pays. Part 1   (Site not responding. Last check: 2007-09-17) When I look back on those days and even look on what I'm doing today, a lot of what allows me to persist, in the face of many people who don't believe, is this feeling of being unencumbered by reality. I thought I knew what persistence meant, but I realized that I knew nothing when I encountered the master... Great story by Joe Kraus, founder of Exite of his encouter with Winod Kosla, and what makes a great VC While we were still in the garage (literally), we met with at least 15 different venture capital firms. bnoopy.typepad.com /bnoopy/2004/09/persistence_pay.html   (2044 words)

Object persistence in object-oriented applications While making objects persistent, one more level of implementation needs to be considered in addition to the interface and the internal structure present for an ADT in a programming language, namely the physical database implementation. The best way to support persistence is to do it in a way that is orthogonal to type (i.e., it is possible to create persistent and transient objects of the same type in an application). Typically, there are two main ways (sometimes both are supported in the same system) of adding persistence to objects of an instance, either by overloading the new operator, or by requiring that every class having persistent instances inherit from a common class whose definition and implementation is provided by the database system. www.research.ibm.com /journal/sj/361/srinivasan.html   (11065 words)

www.hibernate.org - Hibernate Unlike many other persistence solutions, Hibernate does not hide the power of SQL or JDBC from you and guarantees that your investment in relational technology and knowledge is as valid as always. Hibernate supports the EJB 3.0/JSR-220 persistence standardization effort and implements it with Hibernate Annotations and Hibernate EntityManager; two members of the Hibernate developer team are active in this Expert Group. We are updating the CaveatEmptor example persistence layer for the second edition of Hibernate in Action. www.hibernate.org   (1451 words)

Open Source Persistence Frameworks in Java Hibernate is a powerful, ultra-high performance object/relational persistence and query service for Java. It allows the developer to design proper object-oriented classes for persistence, without having to be forced to use JavaBeans only, and it has full support for inheritance hierarchies and circular references. One of the design goal for O/R Broker was simplicity, which means that there are only 4 public classes, and an XML Schema file for validation of the very simple XML configuration file. java-source.net /open-source/persistence   (1050 words)

Bnoopy: Persistence Pays, Part 2   (Site not responding. Last check: 2007-09-17) I can honestly say that if we hadn't persisted, hadn't pushed through when it looked hopeless, hadn't let Netscape know that at the slightest opportunity we were ready to go, that deal would have never happened and Excite would never have had the run it had. I became a true believer in persistence and it's the #1 lesson I try to bring to the companies I work with. Sep 26, 2004 2:38:46 PM Persistence is the thing that separates the successes vs. the failures. bnoopy.typepad.com /bnoopy/2004/09/persistence_pay_1.html   (1823 words)

Persistence Of The Spirit   (Site not responding. Last check: 2007-09-17) Persistence of the Spirit is an interpretive study of the people and events that contributed to the fl experience in Arkansas. Developed in 1986-87 by a team of humanities scholars supported by grants, the project included a permanent exhibit at the University of Arkansas at Pine Bluff, traveling exhibits, booklets, classroom guides, and a 30-minute video documentary. Information about Persistence of the Spirit including the scholars, funders and archives that collaborated on this project. www2.aristotle.net /persistence   (204 words)

Bean Persistence A Bean persists by having its properties, fields, and state information saved and restored to and from storage. When a Bean instance is serialized, it is converted into a data stream and written to storage. Information on the XML format and on how to implement long-term persistence for non-beans is in two articles in The Swing Connection — java.sun.com /docs/books/tutorial/javabeans/persistence   (743 words)

Fredrik Normén's blog - NSQUARED2   (Site not responding. Last check: 2007-09-17) But when we don’t use an object we mostly need to persists the object into some kind of data source, probably into a database so it will not use all computer’s memory. A data mapper is a suitable tool for working with object and persist the object into a relation database. There are some cases where a data mapper could not be suitable, for example, when you want to execute batch queries for updating several of rows or other kind of operations against the data source that the data mapper could not handle for you. fredrik.nsquared2.com /viewpost.aspx?PostID=209   (2154 words)

Hypertext Style: Cool URIs don't change. What you need to do is to have the web server look up a persistent URI in an instant and return the file, wherever your current crazy file system has it stored away at the moment. The latest version of a document needs a persistent identifier whatever its status is. Keep the status out of the name. Of course, if you are building your own server, then using a database to relate persistent identifiers to their current form is a very clean idea -- though beware the unbounded growth of your database. www.w3.org /Provider/Style/URI.html   (2716 words)

persistence - Glossary - CNET.com   (Site not responding. Last check: 2007-09-17) The amount of time a phosphor or diode pixel stays lit after current has been applied to it. A pixel's persistence is what allows an image to remain on the screen between screen refreshes. Screens with short-persistence pixels may show flicker, while those with long-persistence pixels may show ghosting. www.cnet.com /Resources/Info/Glossary/Terms/persistence.html   (49 words)

Ranchero Software: Persistence   (Site not responding. Last check: 2007-09-17) The default is to let items get deleted when they disappear from the feed, but you can tell NetNewsWire how many days to keep items instead. You can also set persistence for groups and individual subscriptions. The settings for a group apply to the subscriptions within the group. ranchero.com /netnewswire/features/persistence.php   (151 words)

Persistence "We find evidence that differences in performance between funds persist over time and that this persistence is consistent with the ability of fund managers to earn returns." "The relative performance of no-load, growth-oriented mutual funds persists in the near term, with the strongest evidence for a one-year evaluation horizon." Persistence of the Dow Jones Index on Rising Volume persistence.behaviouralfinance.net   (158 words)

Blogging Roller: Dave Johnson on blogging, open source and Java I took JGrinder and JRF out of he mix because they seem to be a little too intrusive. They force your to make your persistent objects extend framework objects and they don't seem to offer any tools to help you generate DDL or persistent objects. Instead, Roller uses XDoclet to generate the persistent data objects, Struts form beans, and the Castor Mapping file all from the same source meta-data. www.rollerweblogger.org /page/roller/20021013   (2925 words)

Persistence   (Site not responding. Last check: 2007-09-17) Persist data with Java Data Objects, Part 2 Persist data with Java Data Objects, Part 1 Add persistence and peer-to-peer computing to Java applets hosted by Netscape 3.0.1 www.javaworld.com /channel_content/jw-persistence-index.shtml   (640 words)

The Arts A work of literature is a creative, universal form of expression that addresses the emotional, spiritual, or intellectual concerns of humanity. Initially, moving pictures meant only the movement that is perceived when a string of celluloid-recorded images are projected at a rate of about 16 or more frames per second (see persistence of vision). Today, motion pictures (or "*movies*") are an art form, as well as one of the most popular forms of entertainment. artzia.com /Arts   (740 words)

SPIRITUAL PERSISTENCE spiritual, afterlife, death, new age, religion, medium, soul, millennium, heaven, self-help Spiritual Persistence forges new ground by looking beyond conventional thought and symbol patterns. Click on the link to read one with special meaning for you. - This is the heart and soul of Spiritual Persistence: Rikkity's communications. www.spiritualpersistence.com   (323 words)

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