, a reversalfilm is a type of photographic film that produces a positive image on a Transparency optics transparent base. The film is processed to produce transparencies or diapositives instead of negative photography negatives and photographic printing prints . Reversalfilm is produced in various sizes, from 135 film 35mm roll film to 8x10 sheet film . A slide is a specially mounted individual ... images, etc. Reversalfilm is sometimes used as motion picture film , mostly in the 16mm, Super 8 mm film Super 8 and 8mm formats, to yield a positive image on the camera original. This avoids the expense and slight degradation of image quality resulting from using a negative film, and copying ... in sheet film and Lumicolor in roll film sizes. Also using the additive principle and reversal processing .... Film types All color reversalfilm sold today is developed with the E 6 process . The non substantive ... can be made directly with some modern black and white film using Photographic developer reversal processing ... projector. Agfa Gevaert discontinued its Agfa Scala 200x Professional black and white reversalfilm ... of the Czech Republic produces the only remaining dedicated black and white reversalfilm for 35 ... currently produce kits for reversal processing. dr5 Chrome process. Kodak Tri X ReversalFilm 7266 and Kodak Plus X ReversalFilm 7265 are black and white reversal films used for movie making. ref cite ... title Black and White ReversalFilm KODAK TRI X ReversalFilm 7266 16 mm Technical Data year 2003 ... tech7265.htm title Black and White ReversalFilm KODAK PLUS X ReversalFilm 7265 16 mm Technical ... bot H3llBot ref Uses Reversal films are the preferred film choice of professional photographers for images ... en motion products bw 7266.jhtml?id 0.1.4.4.8.8&lc en Kodak TRI X ReversalFilm 7266 Ilford http www.ilfordphoto.com ... dr5chrome.html dr5CHROME B&W reversal http www.guidetofilmphotography.com slide film photography.html Color ReversalFilm Information and Comparison Chart Photography Category Photographic ... more details
Orphan date February 2009 Reversal is a 2001 movie about a high school wrestler. The movie, starring Danny Mousetis , chronicles the struggle of Leo Leone as he strives for the Pennsylvania state title and his dad s affection. Coached by his father, Edward Leone played by Jimi Petulla , he is constantly pushed towards this goal. He is forced to decide between the approval of his father or his own wishes as he feels the strain from years of training and making weight. ref cite web url http www.imdb.com title tt0226379 plotsummary title Plot Summary ref The movie never made it to the mainstream public, however received vocal support from many leaders in the wrestling community such as Cael Sanderson and Kurt Angle . ref cite web url http www.reversalthemovie.com reviews.html title Reviews ref The soundtrack was composed by Jeff Danna . His first credits were as a contributing composer for Fox s popular series Beverly Hills 90210 . One of his more recent and noteworthy scores were for The Boondock Saints Parts I & The Boondock Saints II All Saints Day II . In 2001, other than Reversal, Danna composed three more films O film O , The Grey Zone and Green Dragon film Green Dragon . His music has also been heard on the hit syndicated series Kung Fu The Legend Continues and in the telefilm Baby, with Farrah Fawcett . ref cite web url http www.reversalthemovie.com more about composer.html title Soundtrack ref References reflist Category 2001 films ... more details
Infobox Korean film name Reversal of Fortune image Reversal of Fortune film poster.jpg director Park Yong woon producer Lee Chang sae writer Oh Hyun ri br Kim Moon sung br Kwon So yeon br Park Yong woon starring Kim Seung woo br Ha Ji won br Kang Seong jin music Lee Seung heui cinematography Kim Dong cheon editing Ham Seong weon distributor Cinema Service released June 13, 2003 runtime 110 min. country South Korea language Korean budget gross hangul hanja rr Yeokjeone sanda mr Reversal of Fortune is a 2003 in film 2003 Cinema of Korea South Korean film directed by Park Yong woon, and starring Kim Seung woo and Ha Ji won . The film features several songs from Ha Ji won s debut album, Homerun . Plot Having turned his back on a promising career as a professional golfer , Kang Seung wan is now a down on his luck stock exchange worker, and in debt to local gangster Ma Kang sung. After crashing his car while driving through a tunnel, Seung wan wakes up to find himself in a Parallel universe fiction alternate reality where he fulfilled his sporting ambitions, and is now a famous golf champion. But things aren t as perfect as they first seem he now has a wife who wants a divorce, and must compete in a major golf tournament despite not having played for over ten years. Cast Kim Seung woo ... Kang Seung wan Ha Ji won ... Han Ji yeong Kang Seong jin ... Dae shik Lee Moon sik ... Ma Kang sung Ko Ho kyeong ... Seon joo Lim Chang jung ... Police officer Park Kwang jeong Im Yoo jin External links imdb title id 0364759 title Reversal of Fortune Amg movie 291868 Reversal of Fortune http www.hancinema.net korean movie Reversal of Fortune.php Reversal of Fortune at HanCinema Cinema of Korea Category 2000s romantic comedy films Category 2003 films Category Fantasy comedy films Category Golf films Category Korean language films Category Romantic fantasy films Category South Korean films Korea film stub ko ... more details
tone date April 2010 unreferenced date April 2010 Infobox film name Reversal of Fortune image director Wayne Powers producer writer Robert DeMaio starring Ted Rodrigue music cinematography editing distributor released start date 2005 runtime 68 minutes country United States language English budget Reversal of Fortune is a 2005 Showtime documentary which asks the question What would a homeless person do if they were given 100,000? Plot The documentary film documentary begins with the introduction of Ted Rodrigue, a homeless man living under a bridge in California . He begins by describing an average day of survival for him, which consists of collecting cans and bottles for recycling in order to eat and buy cigarettes and beer for the day. He informs the audience that an average day brings in about 25, while a good day might see as much as 35. Ted reflects on the better days of his life, when his mother a former alcoholic and sisters accepted him. He is shown placing a collect call to his mother, ultimately having the charges denied by his mother. Ted blames his homelessness and lack of family support on their prejudice against him for being homeless and an undesirable childhood. Ted describes his mother as a bar whore who often brought strange men home from the bar on the weekends and that at the age of 12, he was given his first beer by his mother at one of her many social gatherings. His ability to do as he pleases by not having to answer to any authority figures, keeps him on the streets ... plant. Once the director pulls you into the plight of Ted Rodrigue, the film begins to build ... he still believes he is set for life By this time, Ted has become resentful to the film producers for giving him the money. The film then ends telling the viewer that, six months after finding the money .... As of July 2007, Ted is back in Pasadena and working for the same recycling plant shown in the film. References imdb title id 0838195 title Reversal of Fortune External links imdb title 0838195 Reversal ... more details
NOTOC Summary Description Theatrical poster for Reversal of Fortune 2003 filmReversal of Fortune Source http www.hancinema.net korean movie Reversal of Fortune.php HanCinema resized Copyright 2003 Cinema Service Rationale for fair use in Reversal of Fortune 2003 film It is believed that this image satisfies Wikipedia s Wikipedia Non free content criteria non free content criteria because No free equivalent exists or could be created that would serve the same enyclopedic purpose. Use of this image does not infringe on the commercial opportunities of the named copyright holder. No duplicate or similar fair use images exist on Wikipedia that would serve the same purpose. The image is of low resolution and not larger than 300px on at least one of its dimensions, per guidelines at MOS FILM . The image has been previously published outside Wikipedia see the named source above . The image meets general Wikipedia content requirements and is encyclopedic. The image meets the requirements of WP IUP . The image is used in at least one article, i.e. the article linked in the section heading above. The presence of this image is significant because it provides visual identification for the subject of the named article. The image is not being used in a disambiguation page or outside the article namespace. The summary above names the source of the image and also the copyright holder. The applicable copyright tag is included below. The name of the article for which this rationale applies is linked in the section heading above. Note This rationale applies only to the use of this image in the article named above. Use of this image in other articles requires a separate rationale, which should be added below. Licensing Non free poster Category Film poster images ... more details
NEW USER? WANT TO KNOW THE DIFFERENCE BETWEEN THIS DISAMBIGUATION PAGE AND A NORMAL ONE?.... 1 WHAT TO ADD? Disambiguation pages help people choose between possible likely meanings of a search term. They re not complete lists of meanings. More at Wp disambiguation Deciding to disambiguate . 2 WHAT TO LINK? i Disambiguation pages normally only link the subjects themselves. Non subjects only get linked if necessary and article includes a definition of the subject. ii Subjects go at start of sentence if possible. iii Real article names are shown no pipes needed More style info at Wikipedia Manual of Style disambiguation pages . Wiktionary Reversal can refer to Reversal film , a type of photographic film also known as slide or transparency film Reversal of polarization polarity dn Sweep martial arts in grappling, also known as a reversal Reversal film , a movie about wrestling Reversal options , an option trading strategy See also Reverse disambiguation Reversing disambiguation disambig ... more details
Infobox Book name The Reversal title orig translator image image caption author Michael Connelly illustrator cover artist country USA language English language English series Mickey Haller, 3 subject genre crime fiction , mystery novel mystery publisher Little, Brown release date english release date 2010 media type Print Hardcover Hardback pages isbn dewey congress oclc preceded by 9 Dragons novel 9 Dragons followed by The Fifth Witness The Reversal is the 22nd novel by American author Michael Connelly and features the third starring appearance of Los Angeles criminal defense attorney Mickey Haller Michael Mickey Haller . Connelly introduced Haller in his bestselling 2005 novel The Lincoln Lawyer and then paired him with Los Angeles Police Department LAPD detective Harry Bosch , his half brother, in 2008 s The Brass Verdict . In 2009 s 9 Dragons novel 9 Dragons , Haller appears in a supporting role as Bosch s personal lawyer. The Reversal was released in the United States on October 5th, 2010. Plot summary Mickey Haller, who has become increasingly frustrated in his role as a defense lawyer, agrees to undertake the prosecution role on behalf of the city of Los Angeles, in the retrial of a convicted killer which has been granted as a result of new DNA evidence. His one condition before accepting the task is that he is permitted to choose his own team he chooses his ex wife Maggie McPherson as his co prosecutor, and his half brother Harry Bosch as his investigator from the LAPD. The prosecution case rests largely on the testimony of Sarah Gleason, the elder sister of the victim, Melissa Landy. The body of 12 year old Melissa was discovered in 1986, discarded in a dumpster, only a few hours after she was reported missing. Unknown to the killer, her sister had been hiding in the garden and had witnessed her abduction. On the day of the murder, she identified Jason Jessup ... Connelly DEFAULTSORT Reversal Category Novels by Michael Connelly Category Los Angeles, California ... more details
Phonetic reversal is the wikt process process of reversing the phonemes of a word or phrase . When the reversal is identical to the original, the word or phrase is called a phonetic palindrome . Phonetic reversal is not entirely identical to backmasking , which is specifically the reversal of recorded sound . This is because pronunciation in Speech communication speech causes a reversed diphthong to sound different in either direction e.g. eye IPA a becoming yah IPA j , or differently emphasize a consonant depending on where it lies in a word, hence creating an imperfect reversal. Backmasking involves not only the reversal of the order of phonemes, but the reversal of the phonemes themselves, which means that the reversed sound of a phrase may be hard to predict. According to proponents of reverse speech , phonetic reversal occurs unknowingly during normal speech. Examples In 1982, John Wright of NoMeansNo sang phonetically reversed lyrics on the backing vocal to the Rich Guns track on the band s first album, Mama . In the Film in 1984 1984 American film Amadeus film Amadeus , lead character Wolfgang Mozart claims to Constanze Weber that in Salzburg everything goes backwards. He then proceeds to deliver a series of phonetically reversed phrases, many of them vulgar , which she must guess by reversing them out loud. In the television drama Twin Peaks , the Man from Another Place s character s speech was phonetically reversed. The Simpsons then used the technique to parody that Twin Peaks episode in Who Shot Mr. Burns? Part Two . Singer Songwriter Multi instrumentalist Jim Ure is better known by his phonetically reversed name Midge Ure . Kate Bush used phonetic reversal in her ... monster film Cloverfield, after the credits, a broken sound recording can be heard of Rob saying ... like Rob saying ...its still alive... References reflist http www.triplo.com ev reversal EV Audio reversal in popular culture http www.dailyscript.com scripts amadeus.html Script for Amadeus Category ... more details
other uses Infobox film name Reversal of Fortune image Reversal of fortune poster.jpg caption Theatrical release poster director Barbet Schroeder producer Edward R. Pressman br Oliver Stone based on Based on Reversal of Fortune book Reversal of Fortune Alan M. Dershowitz screenplay Nicholas Kazan starring Glenn Close br Jeremy Irons br Ron Silver music Mark Isham br Josh Clayton Felt br Joseph Hooven br Michael Ward br Jerry Winn cinematography Luciano Tovoli editing Lee Percy distributor Warner Bros. released Film date 1990 9 12 runtime 111 minutes country Film US language English gross 15,445,131 Reversal of Fortune is a 1990 film adapted from the 1985 book Reversal of Fortune book Reversal of Fortune Inside the von B low Case , written by law professor Alan Dershowitz . It recounts the true story of the unexplained coma of socialite Sunny von B low , the subsequent attempted murder trial, and the eventual acquittal of her husband, Claus von B low , who had Dershowitz acting as his defense. ref State v. von Bulow , 475 A.2d 995 R.I. 1984 . ref Cast Jeremy Irons as Claus von B low Ron Silver as Alan Dershowitz Glenn Close as Sunny von B low Annabella Sciorra as Sarah Fisher Stevens as David Marriott Jack Gilpin as Peter MacIntosh Stephen Mailer as Elon Dershowitz Christine Dunford as Ellen Felicity Huffman as Minnie Mano Singh as Raj Johann Carlo as Nancy Keith Reddin as Dobbs Alan Pottinger as Chuck Mitchell Whitfield as Curly Tom Wright as Jack Gordon Joseph Weiss as Tom Berman ... award. Location The film was shot in numerous estates in Rhode Island and the Knole house in Old Westbury, New York Old Westbury . Reception The film received mostly positive reviews and holds a 94 ... web url http www.rottentomatoes.com m reversal of fortune title Reversal of Fortune Movie Reviews ... IMDb title 0100486 Reversal of Fortune Barbet Schroeder DEFAULTSORT Reversal Of Fortune Category ... Reversal of Fortune fr Le Myst re von B low it Il mistero Von Bulow ja pl Druga prawda pt Reversal ... more details
wiktionary time reversal Time reversal may refer to In physics, T symmetry the study of thermodynamics and the symmetry of certain physical laws where the concept of time is reversed &mdash ie. where a mirror reverse transformation is applied to a forward direction time state. Time Reversal Signal Processing , a signal processing technique popular in acoustics, and currently being applied to electromagnetics, that results from the reversal in time of a system s response signal Time travel , theorised and speculative concepts about travelling physically through time disambig ... more details
Risk reversal can refer to a measure of the vol skew or to an investment strategy. Risk Reversal investment strategy A risk reversal consists of being long buying an out of the money call and being short i.e. selling an out of the money put, both with the same maturity. A risk reversal is a position in which you simulate the behavior of a long, therefore it is sometimes called a synthetic long. This is an investment strategy that amounts to both buying and selling out of money options simultaneously. In this strategy, the investor will first make a market hunch, if that hunch is bullish he will want to go long. However, instead of going long on the stock, he will buy an out of the money call option, and simultaneously sell an out of the money put option. Presumably he will use the money from the sale of the put option to purchase the call option. Then as the stock goes up in price, the call option will be worth more, and the put option will be worth less. ref http www.quantprinciple.com invest index.php docs quant strategies riskreversal Theory of Risk Reversal ref If an investor holds the underlying stock or FX and sells a risk reversal, then he has a Collar finance collar position. i.e. br Underlying Risk Reversal Collar finance collar Risk reversal measure of vol skew Risk Reversal can refer to the manner in which similar out of the money option finance call and put options , usually foreign exchange option s, are quoted by Finance dealers. Instead of quoting these options prices, dealers quote their Volatility finance volatility . math R 25 sigma call,25 sigma put,25 math In other words, for a given maturity, the 25 risk reversal is the vol of the 25 delta call less the vol .... A positive risk reversal means the volatility of calls is greater than the volatility of similar ... external links Reuters description http glossary.reuters.com index.php?title Risk Reversal Investopedia ... invest index.php docs quant strategies riskreversal Risk Reversal Case Study Category Options ... more details
Magnetization reversal, or switching, represents the process that leads to a 180 reorientation of the magnetization Euclidean vector vector with respect to its initial direction, from one stable orientation to the opposite one. Technologically, this is one of the most important processes in magnetism that is linked to the magnetic data storage device data storage process such as currently used in hard disk drive s 1 . As it is known today, there are only few possible ways to reverse the magnetization of a metallic magnet 1 magnetization reversal in an applied magnetic field 1 2 magnetization reversal by spin injection 1 3 magnetization reversal by circularly polarized light 2 . References 1 J. Stohr, H. C. Siegmann, Magnetism From fundamentals to Nanoscale Dynamics Springer Verlag, Berlin, 2006 . 2 http www.stanciu.nl thesis.htm C.D. Stanciu, PhD Thesis, 2008. Category Physics Category Electric and magnetic fields in matter Category Fundamental physics concepts ... more details
Image The island reversal new.jpg thumb 500px The Island Reversals In general terms, The Island Reversal can be defined as a compact trading activity within a range of prices, separated from the move proceeding it this separation is caused by an Gaps Technical analysis Exhaustion Gap and the subsequent move in the opposite direction occurs as a result of a Gaps Technical analysis Breakaway Gap . Formation Close scrutiny of Island Reversal formations shows that the Island Reversal consists of an Gaps Technical analysis Exhaustion Gap and the subsequent move is followed by a Gaps Technical analysis Breakaway Gap . Uncommonly, the Breakaway Gap that completes the Island is filled in a few days by a pull back as a result of the reaction. The Island Reversal can occur at the peak or the reverse of Head and shoulders technical analysis Head and Shoulders formations . For example, assume that the price in a rising trend closes at its high of 84.00 and opens at 91.00 the following day and then does not fall below its opening. Near the end of the day, it moves up further and touches 97.00 but closes at 96.00 however. Observation thus shows a gap of 7.00 which is not filled. On the following day market price open at 94.00, touches high of 96.00 and closes at 90.00. A few days later or the very next day, market price opens at 84.00 and closes at 83.00, keeping itself below the area of 91.00 and 84.00. All the trading above 91.00 will appear on the Technical analysis chart to be isolated and is known as, The Island Reversal. Characteristics The occurrence of The Island Reversal is rather rare. It consists of a minor move. It is not, in itself of major significance. It can occur at the Top ... is in the opposite direction. It is an extremely good indicator of a reversal of primary or intermediate ... as One Day Reversal. Caution This can be compared with the scenario that on reaching an island .... technical analysis Category Chart patterns fr Island Reversal ... more details
Tubal reversal , also called tubal sterilization reversal or tubal ligation reversal , is a surgical ... segments of fallopian tube , tubal reversal may give women the chance to become pregnant again ... at the end of the tube facing the ovary Tubal reversal surgeries Tubal reversal surgeries utilize ... the tube from closing again. Mini laparotomy tubal reversal Mini laparotomy for tubal reversal ... precision in suturing of the tubal segments. Laparoscopic tubal reversal Laparoscopic Tubal Reversal ... laparoscopic tubal reversal surgeon, laparoscopic tubal reversal combines the success rates of micro ... assisted tubal reversal Robotic assisted tubal reversal surgery is a surgical procedure in which ... the entire reversal surgery using controllers located inside the surgeon s console. Robotic surgery experts have suggested robotic tubal ligation reversal offers the advantage of smaller incisions when compared to traditional laparotomy tubal reversal surgery. These smaller incisions have been reported to result in less pain and quicker return to work after robotic tubal reversal when compared to traditional tubal ligation reversal using larger abdominal incisions. Robotic experts have also ... can obtain during laparoscopic tubal ligation reversal. The potential disadvantages to robotic ... 26 patients who underwent robotic assisted tubal reversal to 41 patients who underwent outpatient mini laparotomy abdominal incision tubal reversal. Robotic tubal reversal patients, when compared to abdominal tubal reversal surgery patients, had longer times under anesthesia 283 minutes vs 205 minutes and longer times in surgery 229 minutes vs 181 minutes . On average, robotic tubal reversal patients returned to work one week sooner than abdominal tubal reversal patients and the robotic tubal reversal surgeries were also more expensive than abdominal tubal reversal surgeries ref name rodgers . An Ohio State University study evaluating robotic tubal reversal vs abdominal tubal reversal discovered ... more details
Citation style details Titles should be specified Pronoun reversal is a language abnormality common in the speech of autistic children. Children refer to themselves as he, she, or you, or by their own proper names. Pronoun reversal is closely linked to echolalia . Since autistic children often use echolalic speech, they refer to themselves as they have heard others speak of them and misapply pronouns. For example Parent What are you doing, Johnny? Child You re here. Parent Are you having a good time? Child You sure are. If speech continues to develop more normally, this pronoun reversal might be expected to disappear. In many instances, however, it is highly resistant to change. Some children have required very extensive training even after they have stopped repeating the phrases of other people. References Tramontana & Stimbert, 1970 Davison, Neale & Kring, 2004 External links http cs www.cs.yale.edu homes scaz papers Gold ICDL 06.pdf Gold, Kevin and Brian Scassellati, Grounded Pronoun Learning and Pronoun Reversal , Yale University 2006 Category Autism Category Pronouns Autism stub ... more details
unreferenced date March 2008 In psychodrama , role reversal is a technique where the Protagonist Protagonist in psychodrama protagonist is asked, by the psychodrama director , to exchange roles with another person an auxiliary ego on the psychodrama stage. The former assumes as many of the roles of the other as possible and vice versa. In that way, one is able not only to experience a different perspective of the situation to walk into someone s else s shoes , but also to witness one s own behaviour from the other side. Thereby, the role reversal can bring significant Abreaction abreactive and mental catharsis , insight, and transformation. Category Psychodrama psych stub fi K nnetty vanhemmuus ... more details
Transporter reversal is the action of reversing a plasmalemmal membrane transporter protein transporter via a process known as phosphorylation . Neurotransmitter transporters normally function as part of the reuptake process, by carrying neurotransmitter chemicals from the extracellular space into the cytoplasm of a presynaptic neuron. When they operate in reverse, they instead carry the neurotransmitter from the cytoplasm into the extracellular space, where it may become capable of binding to postsynaptic neurotransmitter receptor receptors . Transporter reversal is utilized by all drug s that act as releasing agent s, such as amphetamine . See also Active transport Releasing agent References Reflist 2 Neuromodulation Category Neuroscience Pharmacology stub ... more details
citations missing date September 2007 Introduction Reversal theory ref http reversaltheory.net blog welcome to the reversal theory society Reversal Theory Society ref is a theory of Personality psychology ... time. ref name glossary http reversaltheory.net blog about the theory glossary Apter, Michael J. Reversal ... Reversal theory has been developed primarily by British psychologist Dr Michael J. Apter since ... ref The theory has been researched, developed and applied extensively. ref Apter, Michael J. Reversal ... articles ?pid articles ref Domains Reversal theory is organized around a series of metamotivational ... and emotion The primary emphasis of Reversal Theory lies in the concept of reversals by triggering a reversal between states, we can change the meaning attributed to the situation. What seemed serious ... sign may invoke the Conforming state . Reversal Theory links the motivational states above ... if the needs of the state are not fulfilled, negative emotions result. Dominance Reversal Theory ... the Reversal theory from the traditional trait theory , namely, one s personality is not a permanent ... ref History, Use and Instrumentation Reversal Theory was first proposed in the mid 1970s, by K.C.P. .... While Reversal Theory has been actively researched in academic circles for the last thirty years ... to measure Reversal Theory phenomena. While many of these focus on dominance which states are more ... how people s states shift in specific situations . Psychometrics tools in reversal theory Since the formulation of Reversal theory psychometric instruments were developed to test the motivational ... See also Apter, M.J. Ed. 2001 Motivational Styles in Everyday Life A Guide to Reversal Theory. Washington, D.C. American Psychological Association. br Apter, M.J. 2007 Reversal Theory The Dynamics ... Applying Reversal Theory. London Routledge. br Kerr, J.H., Lindner, K.H. and Blaydon 2007 . Exercise Dependence. London Routledge. br Mallows, D. 2007 Switch to Better Behaviour Management Reversal ... more details
to the other. In the case of post synaptic neuron s, the reversal potential is the membrane potential ... ref In a single ion system, reversal potential is synonymous with equilibrium potential their numerical .... Reversal refers to the fact that a change of membrane potential on either side of the equilibrium potential reverses the overall direction of ion flux. ref name Purves The reversal potential is often ..., for example then the voltage inside the cell will equilibrate i.e. become equal to the reversal ... potential of most cells is close to the potassium K sup sup potassium ion reversal potential. This is because ... to the reversal potential of sodium. The relationship between the terms reversal potential and equilibrium ... membrane where the summed currents of the multiple ions will equal zero. While this is a reversal ... sub is the membrane potential, and E sub rev sub is the reversal potential. When the membrane potential is equal to the reversal potential, V sub m sub E sub rev sub is equal to 0 and there is no driving force on the ions involved. ref name Purves Use in research When V sub m sub is at the reversal ... can be deduced by comparing the reversal potential of the EPC to the equilibrium potential for various ions. For instance, if acetylcholine opens an ion channel that is permeable only to K sup sup , then the reversal ... sup sup , the reversal potential would then be around 70mV which is the Na sup sup equilibrium potential of muscle cells . If the channels were only permeable to Cl sup sup , then the reversal potential ... to both Na sup sup and K sup sup , then the reversal potential would be somewhere between 70mV and 100mV ... a negative shift in reversal potential. Conversely, increasing the external K sup sup concentration raises more positive the K sup sup equilibrium potential and produces a positive shift in reversal ... more details
The Jaramillo reversal was a Geomagnetic reversalreversal of the Earth s magnetic field that occurred approximately one million years ago. In the geological time scale it was a short term positive reversal in the then dominant Matuyama reversed magnetic chronozone its beginning is widely dated to 990,000 years before the present Before Present BP , and its end to 950,000 BP though an alternative date of 1.07 million years ago to 990,000 is also found in the scientific literature . ref Herrero Bervera, Emilio, and S. Keith Runcorn. Transition Fields during the Geomagnetic Reversals and Their Geodynamic Significance. Philosophical Transactions Mathematical, Physical, and Engineering Sciences, Vol. 355 No. 1730 September 15, 1997 , pp. 1713 42. ref The causes and mechanisms of short term reversals and Geomagnetic excursion excursions like the Jaramillo, as well as the major field reversals like the Brunhes Matuyama reversal &mdash The Matuyama reversed chronozone flipped into the Brunhes positive chronozone c. 780,000 BP &mdash are subjects of study and dispute among researchers. One theory associates the Jaramillo with an impact event that occurred at the time, as evidenced by a tektite strewnfield in the Ivory Coast &mdash though this hypothesis has been described as both highly speculative and refuted. ref Vincent Courtillot Courtillot, Vincent . Evolutionary Catastrophes The Science of Mass Extinction. Cambridge, Cambridge University Press, 1999 p. 104. ref References references Category Earth Category Geomagnetism Category Pleistocene geol stub ... more details
Vasectomy reversal is a term used for surgical procedures that reconnect the male reproductive tract after interruption by a vasectomy . Two procedures are possible at the time of vasectomy reversal vasovasostomy ... have improved the success of vasectomy reversal procedures. The procedures remain technically ... advances in vasectomy reversal mirror those in microsurgery over the past 100 years. As a discipline ... reconstruction of war injured soldiers. The first microsurgical vasectomy reversal was performed ... will change their minds and have a vasectomy reversal afterwards. ref name hsieh The most common reason for a reversal is remarriage and a desire for more children. Other men in long standing relationships ... and fix this problem during vasectomy reversal is the essence of a skilled surgeon. If the surgeon ... to perform the vasectomy reversal. One approach is the modified 1 layer vasovasostomy and the other ... present in the vas deferens. Success Rates Success rates patency With vasectomy reversal surgery ... after vasectomy reversal, and pregnancy rates. In a recently published report ref name yang 95 of men with a vasovasostomy had motile sperm in the ejaculate within 1 year after vasectomy reversal. Interestingly, almost 80 of these men achieved sperm motility within 3 months of vasectomy reversal ... of the patient at the time of vasectomy reversal does not appear to matter. Using different ... vasectomy reversal series ref name yang . The patency rates after vasovasostomy appear equivalent ... issue to consider is the likelihood of vasoepididymostomy at the time of vasectomy reversal, as this technique ... of needing an vasoepididymostomy at reversal surgery ref name parekatill . Success rates pregnancy The outcome of pregnancy rate after vasectomy reversal depends not only on the patency rate, but also ... reversal surgery is achievement of a pregnancy. There are several reasons why a vasectomy reversal ... may be sufficiently high after vasectomy reversal surgery, female fertility factors may play ... more details
Desalination EDR desalination is an electrodialysis reversal water desalination artificial membrane membrane process that has been commercially used since the early 1960s. An electric current migrates dissolved salt ion s, including fluoride s, nitrate s and sulfate s, through an electrodialysis stack consisting of alternating layers of cation ic and anionic ion exchange membranes. Periodically, the direction of ion flow is reversed by reversing the Electrical polarity polarity applied electric current. See also Reversed electrodialysis RED Links and References http www.usace.army.mil publications armytm tm5 813 8 c 7.pdf U.S. Army Corps of Engineers Technical Manual http www.americancityandcounty.com mag government water issues prompt Article Water issues prompt new look at desalination http www.gewater.com products equipment ed edr edi edr.jsp GE Electrodialysis reversal EDR tech stub Category Water desalination ... more details
Refimprove date July 2008 Control reversal is an adverse effect on the controllability of aircraft . To the pilot it appears that the Aircraft flight control system flight controls have reversed themselves in order to roll to the left, for instance, they have to push the control stick to the right, opposite of the normal direction. Causes There are several causes for this problem pilot error, effects of high speed flight , incorrectly connected controls, and various coupling forces on the aircraft. Pilot error Pilot error is the most common cause of control reversal. In unusual attitude s it is not uncommon for the pilot to become disoriented and start feeding in incorrect control movements in order to regain level flight. This is particularly common when using helmet mounted display systems, which introduce graphics that remain steady in the pilot s view, notably when using a particular form of attitude display known as an inside out display. Citation needed date February 2007 Incorrectly connected controls Incorrectly connected controls are another common cause of this problem. It is a recurring problem after maintenance on aircraft, notably homebuilt designs that are being flown for the first time after some minor work. However it is not entirely uncommon on commercial aircraft ... reversal is often lumped in with a number of high speed effects as compressibility . Examples Wright Brothers glider The Wright Brothers suffered a form of control reversal, normally referred to as adverse ... reversal became apparent when it was wished to increase the lateral maneuverability rate of roll by increasing the aileron area. The aircraft had a wing designed originally for an aileron reversal ... .28type 356.29 Mark XXI and had a theoretical aileron reversal speed of convert 825 mi h km ... needed date February 2007 Gossamer Condor Control reversal also affected the Gossamer Condor , the Kremer ... hise safety critical archive 2001 0362.html A320 Incident incorrect maintenance led to reversal ... more details
Unreferenced date November 2007 Reversal symmetry is a voting system criterion which requires that if candidate A is the unique winner, and each voter s individual preferences are inverted, then A must not be elected. Methods that satisfy reversal symmetry include Borda count , the Kemeny Young method , and the Schulze method . Methods that fail include Bucklin voting , instant runoff voting and Condorcet method s that fail the Condorcet loser criterion such as Minimax Condorcet Minimax . For cardinal voting systems which can be meaningfully reversed, approval voting and range voting satisfy the criterion. Example Consider a preferential system where 11 voters express their preferences as 5 voters prefer A then B then C 4 voters prefer B then C then A 2 voters prefer C then A then B With the Borda count A would get 23 points 5 3 4 1 2 2 , B would get 24 points, and C would get 19 points, so B would be elected. In instant runoff, C would be eliminated in the first round and A would be elected in the second round by 7 votes to 4. Now reversing the preferences 5 voters prefer C then B then A 4 voters prefer A then C then B 2 voters prefer B then A then C With the Borda count A would get 21 points 5 1 4 3 2 2 , B would get 20 points, and C would get 25 points, so this time C would be elected. In instant runoff, B would be eliminated in the first round and A would as before be elected in the second round, this time by 6 votes to 5. Category Voting system criteria ... more details
periods where that polarity is reversed. A geomagnetic reversal is a change in the Earth s magnetic ... years. The latest one, the Brunhes Matuyama reversal , occurred 780,000 years ago. Brief disruptions that do not result in reversal are called geomagnetic excursion s. History In the early 20th century ... understood and the possibility of reversal aroused little interest. ref name Cox1973 cite book last Cox first Allan authorlink Allan Cox coauthors title Plate tectonics and geomagnetic reversal ... of seafloor magnetic anomalies and dating of reversal sequences on land, paleomagnetists have been ... Spectral analysis of geomagnetic reversal time scales journal Geophysical Journal International ... of an analysis using sliding windows to determine reversal rates. ref cite journal last Lutz first T. M. title The magnetic reversal record is not periodic journal Nature journal Nature volume ... reversal rate, so it is common to use a non stationary Poisson process. However, compared to a Poisson process, there is a reduced probability of reversal for some tens of thousands after a reversal ... shorter polarity intervals have been missed. ref name Merrill A random reversal pattern with inhibition .... ref cite journal last Gaffin first S. title Analysis of scaling in the geomagnetic polarity reversal ... lava flows in Battle Mountain , Nevada, found evidence for a reversal that took only four years. The reversal was dated to approximately 15 million years ago. ref name po09062010 cite web last ... 2010GL044286.shtml ref The latest reversal, the Brunhes Matuyama reversal , occurred approximately 780,000 ... intensity greatly increases during a reversal, whereas reversals on Earth seem to occur during ... one state or the other, such that a recovery is seen as a reversal in about half of all cases. Future ... in virtual axial dipole moment since the last reversal. At present, the overall geomagnetic field ... of the magnetic field might be leading up to such a reversal. Some speculate that a greatly diminished ... more details
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