Refimprove date May 2011 Image Signaltransduction pathways.svg thumb An overview of major signaltransduction pathways. Signaltransduction occurs when an http www.ncbi.nlm.nih.gov books NBK21517 extracellular ... transduction publications graph.jpeg 300px thumb right Occurrence of the term signaltransduction ... G. Gilman . The current understanding of signaltransduction processes reflects contributions made ... in the MEDLINE database as containing the specific term signaltransduction was published in 1972 ... signal transmission or sensory transduction for signaltransduction ref name tonndorf cite journal ... related to signaltransduction were published in 1977, of which 11,211 were review journal reviews of other papers . That year the actual term signaltransduction was included in Abstract summary abstracts ... Signaltransduction publisher Academic Press year 2002 isbn 0 12 289631 9 ref ref name rodbell research papers directly addressing signaltransduction processes began to appear in large numbers ... publisher McGraw Hill isbn 0 07 067065 X pages 159 ref Signaltransduction involves the binding of extracellular ... medulla . Environmental stimuli With single celled organism s, the variety of signaltransduction processes ... author Ronnett GV and Moon C. title G proteins and olfactory signaltransduction journal Annu Rev ... an immune system response against invading pathogen s mediated by signaltransduction processes. This may occur independent of signaltransduction stimulation by other molecules, as is the case for the toll ... stimuli through the activation of signaltransduction pathways. For example, Dictyostelid slime ... reproduction. ref name sprague cite journal author Sprague GF Jr. title Signaltransduction in yeast ... on the outside of the cell and the other on the inside. Signaltransduction occurs as a result of a ligand ... activated as part of signaltransduction possess specialized structural domain protein domains ... receptor s and chemokine receptor s. Signaltransduction by a GPCR begins with an inactive ... more details
Signaltransduction inhibitors are drug s that may prevent the ability of cancer cells to multiply quickly and invade other tissues. External links http www.cancer.gov Templates db alpha.aspx?CdrID 44829 Signaltransduction inhibitor entry in the public domain NCI Dictionary of Cancer Terms NCI cancer dict Category Antineoplastic drugs antineoplastic drug stub fr Inhibiteur de transduction de signal ... more details
Orphan date July 2009 Italic title Infobox journal title Journal of Receptors and SignalTransduction cover File Journal of Receptors and Signal Transduction.jpg 150px editors Alex Eberle, Terrence Kenakin discipline Cell physiology abbreviation J. Recept. Sig. Transd. publisher Informa country frequency Bimonthly history 1980 present openaccess license impact 1.517 impact year 2009 website http www.informapharmascience.com rst link1 http informahealthcare.com toc rst current link1 name Online access link2 http informahealthcare.com loi rst link2 name Online archive JSTOR OCLC 31634807 LCCN 95660715 CODEN JRETET ISSN 1079 9893 eISSN 1532 4281 The Journal of Receptors and SignalTransduction is a Peer review peer reviewed scientific journal that publishes laboratory and clinical studies, reviews, and brief communications on biological receptors and associated signaltransduction pathways for ligands involved in the regulation of central and peripheral tissues and cells. It is published by Informa . The editor in chief editors in chief are Alex N. Eberle University of Basel , Switzerland and Terrence Kenakin GlaxoSmithKline , Research Triangle Park, NC, United States . Abstracting and indexing The Journal of Receptors and Signal Tranduction is abstracted and indexed in Elsevier BIOBASE BIOBASE , Biological Abstracts , BIOSIS Previews , Current Contents Life Sciences, EMBASE , PubMed MEDLINE MedLine , Science Citation Index , and Scopus SCOPUS . According to the Journal Citation Reports , its 2009 impact factor is 1.517, ranking it 212th out of 283 journals in the category Biochemistry and Molecular Biology and 136th out of 161 in the category Cell Biology . External links Official http www.informapharmascience.com rst DEFAULTSORT Journal of Receptors and SignalTransduction Category Publications established in 1980 Category Pharmacology journals Category Informa academic journals Category Bimonthly journals Category English language journals ... more details
Infobox organization name Division of SignalTransduction Therapy image image border size default 200 alt alt text see WP ALT caption map optional msize map size, optional, default 200px malt map alt text mcaption optional abbreviation motto formation 1998 extinction date of extinction, optional type GO, NGO, IGO, INGO, etc status ad hoc, treaty, foundation, etc purpose focus as e.g. humanitarian, peacekeeping, etc headquarters location coords Coordinates of location using a coordinates template region served membership language official languages leader title position title for the leader of the org leader name Philip Cohen , Peter Downes, Dario Alessi main organ gral. assembly, board of directors, etc parent organization University of Dundee affiliations AstraZeneca , Boehringer Ingelheim , GlaxoSmithKline , Merck Serono and Pfizer num staff 200 num volunteers budget 2.75 million year website http www.lifesci.dundee.ac.uk dstt remarks The Division of SignalTransduction Therapy or DSTT is an organization managed by the University of Dundee and pharmaceutical companies including AstraZeneca , Boehringer Ingelheim , GlaxoSmithKline , Merck Serono and Pfizer . The purpose of the collaboration is to do general cell signaling research and to encourage development of therapeutic protein kinase inhibitors and phosphatases . It is one of the largest ever collaborations between the commercial pharmaceutical industry and any academic research institute. Organizational resources and management The organization was founded in 1998. In 2003 the organization s existence was renewed with 15 million funding, and in 2008 further renewed with 11 million. It is made up of nearly 200 scientific and support staff in the University of Dundee. The amount of funding and staff make DSTT the largest ... . ref name mainsite cite web url http www.lifesci.dundee.ac.uk dstt title Division of SignalTransduction ... www.lifesci.dundee.ac.uk dstt Division of SignalTransduction Therapy Category Biomedical research ... more details
. This insulin signaltransduction pathway is composed of trigger mechanisms e.g., autophosphorylation ... and Hypoglycemia . Insulin signaltransduction pathway The functioning of a signaltransduction ... mechanism is a common example of Signaltransduction pathway mechanism. Insulin is produced by the pancreas ... or counteracting it. Feedback mechanism Signaltransduction is a mechanism in which the cell responds to a signal from the environment by activating several proteins and enzymes that will give a response to the signal. Feedback mechanism might involve negative feedback and positive feedback. In the negative ... feedback is shown in the insulin signaltransduction pathway by constricting the phosphorylation ... in Insulin signaltransduction pathway and regulation of blood glucose Insulin secretion Insulin ... secretion is an example of a trigger mechanism in a signaltransduction pathway because insulin ...Orphan date April 2012 Disputed date May 2011 The insulin transduction pathway is an important biochemical pathway beginning at the cellular level affecting homeostasis. This pathway is also influenced by fed versus fasting states, stress levels, and a variety of other hormones. When carbohydrates are consumed, digested, and absorbed the pancreas senses the subsequent rise in blood glucose concentration and releases insulin to promote a uptake of glucose from the blood stream. When insulin binds on the cellular insulin receptor, it leads to a cascade of cellular processes that promote the usage .... In positive feedback, the transduction pathway is promoted and stimulated to produce more products .... An example of positive feedback mechanism in the insulin transduction pathway is the activation of some enzymes that inhibit other enzymes from slowing or stopping the insulin transduction pathway ... the intake of the glucose from the blood by not allowing the other proteins in the insulin transduction pathway to be activated and consequently not do their job of transferring the signal to the other ... more details
wiktionarypar transductionTransduction is a mechanism whereby genetic material may be transferred from the genes of a bacterium to another bacterium. This may include the actual covalent bonding of new genetic markers. Other meanings of transduction apply to physics, physiology, machine learning and psychology. It may also refer to Transduction biophysics , the conveyance of energy from a donor electron to a receptor electron, during which the class of energy changes Transduction genetics , the transfer of viral, bacterial, or both bacterial and viral DNA from one cell to another using a bacteriophage vector. The transfer can take place at any DNA marker. Specialized transduction works similarly to transduction, but is limited to specific locations in the DNA sequence. Transduction machine learning , the process of directly drawing conclusions about new data from previous data, without constructing a model Transduction physiology , the transportation of stimuli to the nervous system Transduction psychology , reasoning from specific cases to general cases, typically employed by children during their development Signaltransduction , any process by which a biological cell converts one kind of signal or stimulus into another A process by which a transducer converts one type of energy to another disambig ar de Transduktion es Transducci n fr Transduction ru tr Transd ksiyon ur simple Transduction ... more details
Orphan date November 2006 Unreferenced date June 2008 Sugar Signals biology signaling is an evolutionarily conserved mechanism used by organisms to survive. Sugars have an overwhelming effect on gene expression . In yeast , glucose levels are managed by controlling the mRNA levels of hexose transporters, while in mammals , the response to glucose is more tightly controlled with glucose metabolism and is therefore much more complex. Several glucose responsive DNA Sequence motif motifs and DNA binding protein complexes have been identified in liver and b cells . Although not proven, glucose Repressor repression appears to be conserved in plants because in many cases, both sugar induction and sugar repression are initiated by turning off transcription factors . Category Evolutionary biology ... more details
, Gabriele V., & Moon, Cheil. L title G PROTEINS AND OLFACTORY SIGNALTRANSDUCTION journal Annual ...Refimprove date December 2009 In physiology , transduction is the conversion of a stimulus from one form to another. Transduction in the nervous system typically refers to stimulus alerting events wherein a mechanical physical etc stimulus is converted into an action potential which is transmitted along axons towards the central nervous system where it is integrated. For example, in the visual system , sensory cells called Rod cell rod and cone cell s in the retina convert the physical energy of light signals into electrical impulse s that travel to the brain . The light causes a conformational change in a protein called rhodopsin . This conformational change sets in motion a series of molecular events that result in a reduction of the electrochemical gradient of the photoreceptor. The decrease in the electrochemical gradient causes a reduction in the electrical signals going to the brain. Thus, in this example, more light hitting the photoreceptor results in the transduction of a signal into fewer electrical impulses, effectively communicating that stimulus to the brain. A change in neurotransmitter release is mediated through a second messenger system. Note that the change in neurotransmitter release is by rods. Because of the change, a change in light intensity causes the response of the rods to be much slower than expected for a process associated with the nervous system . ref Silverthorn, Dee Unglaub. Human Physiology An Integrated Approach, 3rd Edition, Inc, San Francisco, CA, 2004. ref In the olfactory system, odorant molecules in the mucus bind to G protein receptors ... ref In neuroanatomy, sensory transduction is the process in which a receptor cell converts ... Approach, 3rd Edition, Inc, San Francisco, CA, 2004. ref Reflist DEFAULTSORT Transduction Physiology Category Physiology Neuroanatomy stub he hu Inger let simple Transduction physiology ... more details
Cleanup date October 2007 Transduction is the transformation of one form of energy to another. In psychology , transduction refers to the nervous system . In the system, transduction occurs when environmental energy is transformed into electrical or neural energy. Receptor cell s produce an electrical change in response to a physical stimulus physiology stimulus . In psychology, transduction, literally means leading across. According to 5 Steps To A 5 AP Psychology, transduction means the transformation of stimulus energy to the electrochemical energy of neural impulses. References Reflist Category Psychological theories DEFAULTSORT Transduction Psychology Psychology stub fr Transduction psychologie ... more details
Olfactory transduction is a series of events in which odor molecules are detected by olfactory receptors and chemical signals are transformed into electrical signal to the brain where they are perceived as smells. ref name Ma M. Ma 2007 Encoding olfactory signals via multiple chemosensory systems. Crit. Rev. Biochem. Mol. Bio. 42 6 463 480. PMID 18066954 ref Once ligands odorant particles bind to specific receptors on the external surface of cilia, olfactory transduction is initiated. In mammals, olfactory receptors have been shown to signal via G protein. This is a similar type of signaling of other known G protein coupled receptors GPCR . The binding of an odorant particle on an olfactory receptor activates a particular G protein G olf , which then activates adenylate cyclase , leading to cAMP production. cAMP then binds and opens Cyclic nucleotide gated ion channel . This opening allows for an influx of both Na sup sup and Ca sup 2 sup ions into the cell, thus depolarizing it. The Ca sup 2 sup in turn activates chloride channels, causing efflux of Cl sup sup , which results in a further depolarization of the cell. ref name Kato & Touhara A.Kato & K. Touhara 2009 Mammalian olfactory receptors Pharmacology, G protein coupling and desensitization. Cel. Mol. Life Sciences. 66 23 3743 3753. PMID 19652915 ref The odorant activated cAMP cascade in the olfactory sensory neuron is subject to negative feedback regulation, like all other G protein mediated pathways. This contributes to response deactivation and adaptation to stimulus. ref name Ma Individual odorants activate subsets of receptors. Receptors also have varying affinities for odorant molecules. In addition, higher concentrations of odorants elicit activity from greater a number of receptors than do lower concentrations. Thus, odor intensity as well as odor identity is represented by combination of a number of activated ... External links http www.cancer.gov Templates db alpha.aspx?CdrID 462728 Olfactory transduction ... more details
Image Transduction genetics en.svg thumb 350px TransductionTransduction is the process by which DNA ... to the process whereby foreign DNA is introduced into another cell via a viral vector . Transduction ... is susceptible to DNAase . Transduction is a common tool used by molecular biologists to stably ... the viral DNA or RNA and the protein coat. Transduction and specialized transduction are especially ... and lysogenic temperate cycles Transduction happens through either the lytic cycle or the lysogenic .... Transduction as a method of transfer genetic material The packaging of bacteriophage DNA has low ... of bacterial DNA into the viral DNA, leading to two modes of recombination. Generalized Transduction Generalized transduction is the process by which any bacterial gene may be transferred to another ... is usually used to encapsulate the viral DNA, the mistake will lead to generalized transduction ... used. Specialized Transduction Specialized transduction is the process by which genes that are near ... lysogenic to lytic cycle is called specialized transduction , and non viral DNA is carried as an insertion ... DNA from either end of the phage DNA may be packaged into the viral capsid. Specialized transduction ... click on Galactosemia ref Specialized transduction was used in these studies for gene ... ref Example of specialized transduction is phage s in Escherichia coli discovered by Esther Lederberg ... and thus be stably inherited. More general uses of the term More generally, transduction is the process ... transformation are also common ways to insert DNA into a cell. Discovery Transduction was discovered ... books bv.fcgi?rid iga.section.1363 ref However, the mechanism of general transduction as well as specialized transduction was discovered a few years later, by Esther Lederberg Larry ... on Transduction ref References Ibid date January 2012 Reflist External links MeshName Genetic Transduction ... http www.med.umich.edu vcore protocols RetroviralCellScreenInfection13FEB2006.pdf transduction protocol ... more details
Unreferenced date December 2009 In biophysics , transduction is the conveyance of energy from one electron a donor to another a receptor , at the same time that the class of energy changes. Photonic energy, the kinetic energy of a photon , may follow the following paths be released again as a photon of less energy be transferred to a recipient with no change in class be dissipated as heat or be transduced In photosynthesis , when the electrons of the chlorophyll pair receive the photon energy from the collecting associated pigments , the photonic energy is destined to link one molecule of phosphate to one of Nicotinamide adenine dinucleotide NAD . The resulting NADP in turn will use the stored energy in the generation of adenosine triphosphate ATP , which is the end point of the light induced photosynthetic process. This is quite wrong NADP is reduced electrons are added to NADPH in the light reactions of linear electron transport. No ATP involved directly. Phosphate is linked to ADP, forming ATP, but this does not involve NADP H , it involves the proton gradient and ATP synthase generated by photosynthetic electron transport processes. This means that the photon s energy ends up its circuit by being transduced to an electron that takes part in the formation of a molecular link of energy rich phosphate. In the pathway of this end point transduction, the energy is transferred along a number of molecules cytochrome s , in a downward way so that energy is partially dissipated at each step. The liberated heat energy serves the homeostasis of the plant, and at the end of the chain the remaining energy is perhaps exactly the one that is needed to build NADP. This process is committed i.e. there is no return path. Homeostasis, theoretically, might save the day only at the beginning before the luminic energy transferred to the chlorophyl pair is conveyed to the first element of the cytochrome ... Transduction Biophysics Category Biophysics ... more details
The Signal may refer to The Signal radio program The Signal radio program , a Canadian radio program on CBC Radio Two Signal , one of several List of Canadian newspapers Canadian newspapers The Signal film The Signal film , a 2007 horror film The Signal Urthboy album The Signal Urthboy album , 2007 The Signal Sandra Nasic album The Signal Sandra Nasic album , 2007 The Signal , downloadable content episode for the 2010 video game Alan Wake The Signal newspaper , a student newspaper at the University of Houston Clear Lake The Signal , a fan podcast dedicated to Firefly tv series Firefly and its movie followup, Serenity film Serenity , as well as related media. SNOAS ES 01 The Signal , an airship owned by The Signal Number One. See also Signal disambiguation disambig it The Signal ... more details
wiktionary signal signaling Signal , signals , signaling , or signalling may refer to tocright Transportation Traffic light Railway signal Communications Beacon Distress signal International maritime signal ... of flag signalling, such as semaphore or flaghoist Recognition signal in human, technical or biological communications Unix signal , a form of interprocess communication Signal electrical engineering ... Smoke signal Telegraphic signal, in telegraphy Names Signal, Wyoming Signal band , a Bulgarian ... album , 1971 Signal album Signal album , a 2005 album by Casiopea Signal song Signal song , a 2006 song by KAT TUN Signal 1933 Signal 1933 , a New York Yiddish language literary monthly published from 1933 to 1936 by the Communist Party USA Signal magazine Signal magazine , a Nazi propaganda magazine which was published in occupied Europe during World War II Signal toothpaste Signal 1 and Signal 2 radio stations Signaal now Thales Nederland , a Dutch defense company SIGNAL programming language , a synchronous programming language Signal Systems, a telecommunications company of the McLean Group of Companies Signal Systems McLean Group of Companies Signal The Southeast Electronic Music Festival , an annual music festival held in the United States Signal novel Signal novel , a 2009 children s novel about a boy who helps a girl from another planet signal her parents USS Signal USS Signal , the name of more than one U.S. Navy ship signal.h , a C standard library header declaring the code signal code function Other Signalling economics in economic theory Signal bridge , partnership card games Signals in legal citation signals legal citations Kent game a card game also known as Signal or Kemp See also Telecommunications Signal velocity Morse code Encryption Semiosis The Signal disambiguation disambiguation ar bg ca Senyal cs Sign l rozcestn k de Signal Begriffskl rung es Signal desambiguaci n fr Signal ko hr Signal it Segnale nl Signaal ja no Signal ... more details
for the TV series No Signal Infobox Album See Wikipedia WikiProject Albums Name No Signal Type Album Artist Park band Park Cover No Signal.jpg Released October 9, 2001 Recorded Genre Indie rock Length 48 31 Label Lobster Records Producer Cameron Webb Reviews Last album Scene 14 br 1998 This album No Signal br 2001 Next album It Won t Snow Where You re Going br 2003 No Signal is the second full length album by Illinois indie rock band Park band Park . It was released in 2001 on Lobster Records . The final track Untitled Bonus Track is referred to as AJS during numerous live performances. ref name Park AJS cite web url http www.youtube.com watch?v 9aoI6vXBHzk title Park AJS publisher Youtube.com date 2006 08 14 accessdate 2010 12 19 ref Track listing The Ghost You Are 4 00 Trivet 2 59 S is for Susan 4 20 At Breakneck Speed 4 30 Swell 3 56 Know Your Enemy 4 09 Clue Me In 2 44 Wreck Simple 4 16 Here On and Out 4 18 Cover Up 5 11 Untitled Bonus Track 3 45 Category Park albums Category 2001 albums Category Lobster Records albums Reflist ... more details
about the TV series the indie rock album No Signal infobox television image show name No Signal caption format runtime 22 min. per episode creator executive producer company You, Me n Him Productions voices Peter Dickson presenter Peter Dickson music theme country United Kingdom network FX UK FX first aired February 5, 2009 last aired April 9, 2009 num seasons 1 num episodes 10 list episodes preceded by followed by website production website No Signal was a British comedy sketch show that aired on a weekly basis from 5 February to 9 April 2009 on FX TV channel FX . The show s humor was based almost entirely on satire of television, including channels, adverts and programming. Though general reaction was mixed, the show was considered successful. Overview No Signal is set up like a regular British Sky Broadcasting Sky TV system with similar graphics and numerous channels, which are flicked through until the show ends, meanwhile showing the various spoofs of commercials, documentaries, etc. An odd take on pre show disclaimers air before each episode, which suggests that at least another series of No Signal will be produced. The set up is considered strikingly similar to The Kevin Bishop Show , which began the previous year. Channels 101 The Main Channel Parody of BBC One br Channel 101 the position of BBC One in reality , generally runs parodies of the said channel s shows, e.g. Antiques Roadshow . 167 Bloke TV Parody of Men & Motors br Channel 167 regularly shows Wife Swap U.S. TV series Cop Swap , featuring a pair of paranoid American police officers, one of whom has a very course mouth. In the last sketch they kill the show s cameraman, accusing him of perversion due to the constant filming of their daily patrols. 191 American Nonsense Parody of BET br Usually running America ... hearing difficulties , e.g. Deaf Rap or Deaf Porn. The No Signal DVD also includes a deaf ... on TVNZ U External links British Comedy Guide tv no signal Category 2009 British television programme ... more details
In molecular biology, the terms upstream and downstream can refer to the temporal and mechanistic order of cellular and molecular events. For example, in signal transduction , the second messenger acts downstream to activation of cell membrane Receptor biochemistry receptor s. The other way around, activation of cell membrane Receptor biochemistry receptor s occurs upstream of the production of second messenger s. See also Upstream and downstream DNA Category Molecular biology molecular cell biology stub ... more details
No footnotes date April 2011 In logic , statistical inference , and supervised learning , transduction or transductive inference is reasoning from observed, specific training cases to specific test cases .... Transduction was introduced by Vladimir Vapnik in the 1990s, motivated by his view that transduction ... which leads to transduction arises through the need to approximate. If exact inference is computationally ... . Example Problem The following example problem contrasts some of the unique properties of transduction ... to the same cluster as the point labeled B . Transduction has the advantage of being ... they are packed very close to that cluster. An advantage of transduction is that it may be able ... points. One disadvantage of transduction is that it builds no predictive model. If a previously ... cost. Transduction Algorithms Transduction algorithms can be broadly divided into two categories ... to a manifold learning algorithm. Partitioning Transduction Partitioning transduction can be thought of as top down transduction. It is a semi supervised extension of partition based clustering. It is typically ... for this purpose. Agglomerative Transduction Agglomerative transduction can be thought of as bottom up transduction. It is a semi supervised extension of agglomerative clustering. It is typically .... Label all points in the merged cluster with the same label. Manifold Transduction Manifold learning based transduction is still a very young field of research. References V. N. Vapnik. Statistical learning ... by Transduction . An early explanation of transductive learning. http www.kyb.mpg.de ssl book discussion.pdf A Discussion of Semi Supervised Learning and Transduction , Chapter 25 of Semi Supervised Learning ... of the difference between SSL and transduction. http waffles.sourceforge.net Waffles is an open source C library of machine learning algorithms, including transduction algorithms. http www.cs.cornell.edu ... option. DEFAULTSORT Transduction Machine Learning Category Machine learning ... more details
Signal Knob may refer to Signal Knob Kentucky Signal Knob New Mexico Signal Knob South Dakota Signal Knob Tennessee Signal Knob Virginia Signal Knob West Virginia geodis ... more details
Signal fire can refer to A smoke signalSignal Fire song Signal Fire song , a 2007 song by Snow Patrol Signal Fire Films , an independent film company Signal Fire Band , A band from North Wales disambig ... more details
Signal lights may refer to Traffic light , signal lights controlling automotive & pedestrian traffic flow Automotive lighting Turn signals Turn signals , signal lights indicating automotive change of direction Railway signalling , use of signal lights to control train traffic flow Signal lamp , a device for communicating between ships with flashing lights. disambig ... more details
Multiple issues wikify February 2012 unreferenced February 2007 cleanup August 2009 A digital signal or pulse which is also called wikt trigger trigger sometimes that provides a time window so that a particular event or signal from among many will be selected and others will be eliminated or discarded. In a multiple input AND OR gate, a signal at one of the inputs triggers the passage of a signal at other inputs.i.e, it passes through or blocks the signal at other inputs. Such a signal is called a gating signal. DEFAULTSORT Gating Signal Category Signal processing Signal gating means to mask unwanted signal transistions from propagating forward. ... more details
Signal to Noise may refer to Signal to Noise comics , a 1992 graphic novel written by Neil Gaiman and illustrated by Dave McKean Signal to Noise novel , a 1998 cyberpunk novel by Eric S. Nylund Signal to Noise The Rise album Signal to Noise White Willow album Signal to noise ratio , a measure used in science and engineering to quantify how much a signal has been corrupted by noise dab ... more details
merge Signal to noise ratio date October 2011 The signal level in an Sound recording and reproduction audio signal chain , on an audio recording , or in a radio frequency communication is the measure of the level of the signal emitted or received. Signal level is often related to signal to noise ratio SNR in the fields of communication theory , science , and engineering , which measures the ratio between an arbitrary Signal electronics signal level and noise . Signal level is also used to transment information. Mostly used for things like cable and satlite TV. References Unreferenced date December 2009 Reflist Category Digital audio Category Communication theory Category Electronics terms Category Measurement Category Radar signal processing Comm stub Engineering stub Science stub de Logarithmische Gr e pl Poziom sygna u ... more details
Unreferenced date December 2009 In telecommunication , a bipolar signal is a Signaling telecommunication signal that may assume either of two polarities, neither of which is zero. A bipolar signal may have a two state non return to zero NRZ or a three state return to zero RZ binary coding scheme. A bipolar signal is usually symmetrical with respect to zero amplitude, i.e., the absolute values of the positive and negative signal states are nominally equal. DEFAULTSORT Bipolar Signal Category Telecommunications terms Telecomm term stub ... more details
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