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Encyclopedia results for Cystic fibrosis transmembrane conductance regulator
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Cystic fibrosis transmembrane conductance regulator





Encyclopedia results for Cystic fibrosis transmembrane conductance regulator

  1. Cystic fibrosis

    cystic fibrosis transmembrane conductance regulator CFTR . This gene is required to regulate ... fibrosis transmembrane conductance regulator CFTR . The most common mutation, F508 , is a deletion ... KW, Reczek D, et al. title An apical PDZ protein anchors the cystic fibrosis transmembrane conductance ...Infobox disease Image CFtreatmentvest2.JPG Caption A breathing treatment for cystic fibrosis, using a mask ... 219700 MedlinePlus 000107 eMedicineSubj ped eMedicineTopic 535 MeshID D003550 Cystic fibrosis also known ... progressive disability and often early death . The name cystic fibrosis refers to the characteristic ... name andersen Andersen DH. Cystic fibrosis of the pancreas and its relation to celiac disease a clinical ... have two working copies of the CFTR gene, only one is needed to prevent cystic fibrosis. CF develops .... Cystic fibrosis is Ireland s most common life threatening inherited disease. Ireland also ... articles.php what is cf Cystic Fibrosis Association of Ireland Forum Bot generated title ref ref http www.breakingnews.ie ireland scientists make major cystic fibrosis breakthrough 468625.html Scientists make major cystic fibrosis breakthrough BreakingNews.ie Bot generated title ref ref http www.independent.ie health we have the highest rate of cystic fibrosis in the world 84572.html We have the highest rate of cystic fibrosis in the world Health, Frontpage Independent.ie Bot generated ... common life shortening inherited diseases in the United States. Individuals with cystic fibrosis ..., lung transplantation is often necessary as CF worsens. Signs and symptoms File Cystic fibrosis manifestations.png 500px thumb right A diagram showing clinical manifestations of cystic fibrosis ... symptoms of cystic fibrosis are salty tasting skin, ref name pmid17557942 cite journal author Quinton PM title Cystic fibrosis lessons from the sweat gland journal Physiology Bethesda volume 22 issue ... and clinical status in children with cystic fibrosis a review of published studies journal Eur. J. Endocrinol ...   more details



  1. Cystic Fibrosis Canada

    Infobox non profit name Cystic Fibrosis Canada image File Cystic Fibrosis Canada 2011.png 160px The new logo and name Cystic Fibrosis Canada , 2011 onward. type Health Charity founded date Birth date 1960 ... 2009 Keeping a Promise accessdate 2010 12 21 date 2009 publisher Cystic Fibrosis Canada ref endowment ... life into the future former name homepage URL cysticfibrosis.ca dissolved footnotes Cystic Fibrosis Canada , formerly the Canadian Cystic Fibrosis Foundation, is a Canada wide health Charitable organization ..., Cystic Fibrosis Canada celebrated its 50th Anniversary. Cystic Fibrosis Canada s mandate is to help individuals with cystic fibrosis , principally by funding cystic fibrosis research and care. The organization also provides educational materials for the cystic fibrosis community and the general public undertakes advocacy initiatives with, and on behalf of Canadians with cystic fibrosis, and raises funds to supports its programs. Cystic Fibrosis Canada is one of the world s largest non governmental granting agencies in the field of cystic fibrosis research. ref cite web url http www.cysticfibrosis.ca en research index.php title Cystic Fibrosis Canada Research accessdate 2011 01 31 date 2010 05 19 publisher Cystic Fibrosis Canada ref Mission Cystic Fibrosis Canada raises funds in order to promote public awareness and support research and high quality cystic fibrosis care. ref cite web url http www.cysticfibrosis.ca en aboutUs mission.php title Cystic Fibrosis Canada About us What we do Mission accessdate 2011 01 31 date 2009 08 06 publisher Cystic Fibrosis Canada ref Research and Care Cystic Fibrosis Canada s primary objective is to fund CF research and care the organization annually ... undertaking CF investigations. Each year, Cystic Fibrosis Canada awards more than 6 million in grants ... title Cystic Fibrosis Canada Research accessdate 2011 01 31 date 2010 05 19 publisher Cystic Fibrosis Canada ref To help ensure consistent, high quality care across the country, Cystic Fibrosis Canada ...   more details



  1. List of cystic fibrosis organizations

    The following organizations assist people with or do research into cystic fibrosis , a hereditary disease .... Australia Cystic Fibrosis Australia ref http www.cysticfibrosis.org.au Cystic Fibrosis Australia ref CFA , an Australian national organization aimed at raising awareness and education of cystic fibrosis through advocacy and research Europe Cystic Fibrosis Trust , a UK Charitable organization charity providing research, information and care for people with cystic fibrosis European Cystic Fibrosis Society ref http www.ecfsoc.org European Cystic Fibrosis Society ref ECFS , a Denmark based organization ... for cystic fibrosis, named after the French singer and Star Academy France Star Academy winner Gr gory Lemarchal http www.ncfs.nl Nederlandse Cystic Fibrosis Stichting , a Dutch organization providing research, information and care for people and family with cystic fibrosis Chloe Cotton Trust Fund ... with cystic fibrosis. Cystic Fibrosis Foundation Slovenia , a Slovenian association providing ... to cystic fibrosis. Operating since 1994, Cystic L serves people with CF and those who share their lives ... and significant others. Canadian Cystic Fibrosis Foundation http www.cysticfibrosis.ca CCFF , a Canada wide health charity, which funds cystic fibrosis research and care. As of February 2011, the Canadian Cystic Fibrosis Foundation will be known as Cystic Fibrosis Canada . Cystic Fibrosis Foundation CFF , a US non profit providing the means to cure and control cystic fibrosis Cystic Fibrosis Lifestyle Foundation ref http www.cflf.org index.php Cystic Fibrosis Lifestyle Foundation Living Stronger ... adults with Cystic Fibrosis as active agents in their healthcare physically, psychologically .... Founded by Brian Callanan. Cystic Fibrosis Reaching Out Foundation ref http www.reachingoutfoundation.org Cystic Fibrosis Reaching Out Foundation ref , a US based network of information and support ... supporting research aimed at finding a cure for cystic fibrosis as well providing education and raising ...   more details



  1. Cystic Fibrosis Foundation

    Infobox Non profit Non profit name Cystic Fibrosis Foundation Non profit logo Image Optimized image 49879a5a.png founded date 1955 founder location Bethesda, Maryland origins key people Robert J. Beall, Ph.D., President and CEO area served USA focus Cystic fibrosis method revenue United States dollar US 143.7 1000000 number million 2005 ref name 2005 financial cite web url http www.charitynavigator.org index.cfm bay search.summary orgid 9142.htm title Charity Navigator Rating Cystic Fibrosis Foundation ... slogan homepage http www.cff.org cff.org The Cystic Fibrosis Foundation CFF is a non profit organization in the United States established to provide the means to cure and control cystic fibrosis CF . The Foundation provides information about cystic fibrosis and finances CF research that aims to improve ... for cystic fibrosis. ref name about cite web url http www.cff.org aboutCFFoundation title About the Cystic Fibrosis Foundation publisher Cystic Fibrosis Foundation accessdate 2007 10 02 ref History ... to providing Grant money grants for research into cystic fibrosis and supporting clinical ... with cystic fibrosis. The Foundation has over 80 chapters and offices across the US. In 1989, scientists working for the Foundation discovered the gene that causes cystic fibrosis, considered the key ... to the sometimes more difficult to pronounce term cystic fibrosis . According to Foundation ... of 65 Roses publisher Cystic Fibrosis Foundation accessdate 2007 10 02 ref See also List of cystic fibrosis organizations Canadian Cystic Fibrosis Foundation Cystic Fibrosis Trust Association Gr gory Lemarchal NACFC References Reflist External links http www.cff.org Cystic Fibrosis Foundation http www.medicalnewstoday.com medicalnews.php?newsid 19241 Cystic Fibrosis Foundation Marks 50 Years in the Fight Against Cystic Fibrosis Category Charities based in the United States US philanthropy org stub fr Cystic Fibrosis Foundation tr Kistik Fibrozis Kurumu ...   more details



  1. Cystic Fibrosis Foundation Slovenia

    Primary sources date January 2010 The Cystic Fibrosis Foundation from Slovenia Slovene Dru tvo za cisti no fibrozo Slovenije is a non profit organization in Slovenia , Europe. The foundation is a member of the European Cystic Fibrosis Society ECFS and Cystic Fibrosis Europe CFE , a section of international CF organization Cystic Fibrosis Worldwide CFW . History The foundation was established on 3 November 2009. Before it was a part of http www.dpbs.si Association of pulmonary and allergic patients in Slovenia Slovene Dru tvo plju nih in alergijskih bolnikov Slovenije Goals The purpose of association is organized to assist all patients affected with cystic fibrosis and their families to achieve the highest possible quality of life that contribute to a better and longer life of patients affected with cystic fibrosis. The society is intended to address and alleviate social distress and difficulties of people, providing assistance to people whose health or life is threatened, and the strengthening of public health. One of goals is also to educate inform the Slovenian people and general public about the CF and various aspects of life of patients affected with it. See also List of cystic fibrosis organizations References http www.jana.si aktualno ljudje Njen boj za zivljenje.html Her fight ... a delegation of the Cystic Fibrosis Foundation in Slovenia , 2009 http www.primorski.eu stories ... to highlight the problems of patients with cystic fibrosis , newspaper Primorski dnevnik, 2009 http www.dnevnik.si novice zdravje 1042313407 The first European Week of awareness of the cystic fibrosis ... in CF External links http www.drustvocf.com Official webpage of Cystic fibrosis Foundation from Slovenia http www.dpbs.si Dru tvo plju nih in alergijskih bolnikov Slovenije http www.cfww.org Cystic Fibrosis Worldwide CFW http www.ecfs.eu European Cystic Fibrosis Society ECFS http www.cff.org Cystic Fibrosis Foundation Category Charities Category Slovenian associations hr Dru tvo za cisti ku fibrozu ...   more details



  1. Cystic Fibrosis Trust

    The Cystic Fibrosis Trust , founded in 1964, is the United Kingdom s only national charity dedicated to all aspects of cystic fibrosis CF . It funds research to treat and cure CF and aims to ensure appropriate clinical care and support for people with cystic fibrosis. Objectives Its objectives are To fund medical and scientific research provide effective treatments and develop a cure for cystic fibrosis To ensure appropriate clinical care for those with cystic fibrosis To provide information, advice, support and, where appropriate, financial assistance to anyone affected by cystic fibrosis Research The aim of the Cystic Fibrosis Trust research is to understand, treat and cure cystic fibrosis. The Cystic Fibrosis Trust is the major funder of medical and scientific CF research in the UK. The Trust ... future. Gene therapy aims to add a healthy copy of the faulty CF gene to the lung. The Cystic Fibrosis ... through the UK Cystic Fibrosis Gene Therapy Consortium . ref http cfgenetherapy.org.uk UK Cystic ... with cystic fibrosis. Clinical care Cystic fibrosis is a complex disease requiring considerable specialist ... CF treatment centres throughout the UK. Since 1997, the Cystic Fibrosis Trust has invested over 10 ... of tomorrow. The Cystic Fibrosis Trust sets national standard on clinical care, provides and funds ... of those with CF across the UK. Information, advice and support The Cystic Fibrosis Trust provides a confidential ..., schools and employers and anyone interested in cystic fibrosis. The Trust also advise families on benefits ... sales will go to the Cystic Fibrosis Trust while the exhibition describes the recessive gene inheritance pattern that causes ginger, or red, hair the same inheritance pattern that causes cystic fibrosis ... See also List of cystic fibrosis organizations Cystic Fibrosis Foundation Canadian Cystic Fibrosis Foundation References Reflist External links http www.cftrust.org.uk The Cystic Fibrosis Trust http cfgenetherapy.org.uk UK Cystic Fibrosis Gene Therapy Consortium Category Health charities in the United ...   more details



  1. File:Cystic Fibrosis Canada 2011.png

    Summary logo fur Article Cystic Fibrosis Canada Use Infobox ADDITIONAL INFORMATION Used for Owner Cystic Fibrosis Canada Website http www.cysticfibrosis.ca en aboutUs CysticFibrosisCanada.php Cystic Fibrosis Canada History Commentary OVERRIDE FIELDS Description Source Portion Low resolution Purpose Must be specified if Use is not Infobox Org Brand Product Replaceability Other information Licensing Non free logo ...   more details



  1. File:Cystic Fibrosis Foundation logo.png

    logo fur Article Cystic Fibrosis Foundation Use Infobox ADDITIONAL INFORMATION Used for Owner Website http www.cff.org Common Images SevaCM images top CFFlogo.gif History Commentary OVERRIDE FIELDS Description Source Portion Low resolution Purpose Must be specified if Use is not Infobox Org Brand Product Replaceability other information Licensing Non free logo History of File Cff.gif 2007 10 03T04 45 43Z User Ani1 Ani1 User talk Ani1 Talk Special Contributions Ani1 contribs 599 bytes 2007 10 03T04 24 17Z User STBotI STBotI User talk STBotI Talk Special Contributions STBotI contribs 204 bytes nowiki This image has no rationale nowiki 2007 10 03T04 22 20Z User Ani1 Ani1 User talk Ani1 Talk Special Contributions Ani1 contribs 154 bytes nowiki Cystic Fibrosis Foundation USA logo from http www.cff.org Common Images SevaCM images top CFFlogo.gif nowiki 2007 10 03T04 22 20Z User Ani1 Ani1 User talk Ani1 Talk Special Contributions Ani1 contribs 190x74 4088 bytes ...   more details



  1. List of people diagnosed with cystic fibrosis

    The following notable people have or had cystic fibrosis . Note Please cite sources when adding entries to this list, non sourced entries will be removed class wikitable width 17 Name width 10 Life width 68 Comments width 5 Reference valign top Frankie Abernathy 1981 2007 Former cast member of MTVs The Real World San Diego appeared in 22 of the 25 episodes. ref cite web date June 12, 2007 url http www.mtv.com news articles 1562302 20070612 id 0.jhtml title Real World San Diego Alum Frankie Abernathy Dead At 25 publisher MTV accessdate 2007 06 12 ref valign top Dean Barnett 1967 2008 American conservative columnist and blogger. ref cite web date October 27, 2008 url http www.boston.com bostonglobe regional editions globe west west 2008 10 dean barnett a.html title Dean Barnett, conservative blogger, dead at 41 publisher Boston Globe accessdate 2008 10 27 ref valign top Lisa Bentley 1968 Canadian Ironman triathlete. ref cite web date July 7, 2004 url http www.cysticfibrosis.ca page.asp?id 237 title Lisa Bentley Triumphs Over CF publisher Canadian Cystic Fibrosis Foundation accessdate 2007 01 26 ref valign top Fr d ric Chopin ? unconfirmed 1810 1849 Polish composer. During his lifetime and at his death, he was thought to suffer from tuberculosis. However recently scientists have suggested that his symptoms were more consistent with cystic fibrosis, unknown at the time. The Polish government has refused to allow DNA tests to be performed on his heart, which is preserved in alcohol see Fr d ric Chopin s illness . ref http www.news24.com News24 Technology News 0,,2 13 1443 2364582,00.html ... 2478775,00.html title Gordon Brown s baby son diagnosed with cystic fibrosis publisher Times Online ... valign top Boomer Esiason The Fight Against Cystic Fibrosis Gunnar Esiason 1991 Son of former American ... first Becky last Barrow title Pop singer dies after valiant battle with cystic fibrosis work ... Lists of people by medical condition Cystic fibrosis ...   more details



  1. Conductance

    wiktionary conductance Conductance may refer to Electrical conductance , the ability for electricity to flow a certain path Fluid conductance , the ability for fluid to transmit through materials Thermal conductivity , the ability for temperatures to transmit through materials Conductance graph , a measure in graph theory See also Conductivity disambiguation disambig ca Resist ncia el ctrica da Konduktans fr Conductance pt Condut ncia ...   more details



  1. Fibrosis

    cleanup date November 2009 Infobox Disease Name Fibrosis Image Cardiac amyloidosis very high mag movat.jpg Caption Micrograph of a heart showing fibrosis yellow left of image and amyloid deposition brown right of image . Movat s stain . DiseasesDB ICD10 ICD9 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D005355 Fibrosis is the formation of excess fibrous connective tissue in an organ or tissue in a reparative or reactive process. This is as opposed to formation of fibrous tissue as a normal constituent of an organ or tissue. Scar ring is confluent fibrosis that obliterates the architecture of the underlying organ or tissue. The term is also sometimes used to describe a normal healing process, ref http dermnetnz.org pathology pathology glossary.html Glossary of dermatopathological terms. DermNet NZ Bot generated title ref but this usage is less common. Examples of fibrosis Image Cirrhosis high mag.jpg right thumb Micrograph showing cirrhosis of the liver. The tissue in this example is stained with a trichrome stain, in which fibrosis is colored blue. The red areas are the nodular liver tissue Pulmonary fibrosis lungs Idiopathic pulmonary fibrosis where the cause is unknown Cirrhosis liver Endomyocardial fibrosis heart Mediastinal fibrosis soft tissue of the mediastinum Myelofibrosis bone marrow Retroperitoneal fibrosis soft tissue of the retroperitoneum Progressive massive fibrosis lungs a complication of coal workers pneumoconiosis Nephrogenic systemic fibrosis skin Crohn s Disease intestine Keloid skin Old myocardial infarction heart Scleroderma systemic sclerosis skin, lungs Arthrofibrosis knee, shoulder, other joints Some forms of adhesive capsulitis of shoulder adhesive capsulitis shoulder Types class wikitable Type Most common location s Circumscription ... three 000040106 Fibrosis http web.me.com nmsprs ISMT2010 International Scar Meeting in Tokyo ... ca Fibrosi de Fibrose es Fibrosis fr Fibrose id Fibrosis it Fibrosi pt Fibrose ru sv Fibros ...   more details



  1. Regulator

    Wiktionary Regulator may refer to Regulator automatic control , a device that maintains a designated characteristic Battery regulator Pressure regulator Diving regulator Voltage regulator Regulator economics , an agency established by central government for the control of or intervention in the operation of markets Regulator gene , a gene involved in controlling the expression of one or more other genes Regulatory agency or Regulator, an agency responsible for exercising autonomous authority over some area of human activity The Regulators , a novel by Stephen King writing as Richard Bachman Regulator, a type of precision pendulum clock Regulator, an auxiliary physics concept used in regularization physics regularization Regulator mathematics , a positive real number used in Dirichlet s unit theorem The Regulator , a song by Clutch from Blast Tyrant Regulator, British term for a steam engine s throttle Regulators, components of Uilleann pipes , a form of bagpipes Groups of people Regulator, the former name for a member of the Royal Navy Police Regulator, a faction in the War of the Regulation 1760 1771 Regulator, a member of the Shaysites , followers of Daniel Shays during Shays Rebellion 1786 Regulator, a faction in the Regulator Moderator War 1839 1844 Regulator, a vigilante organized in response to the Banditti of the Prairie 1830s 1840s Regulator, a member of the Lincoln County Regulators , deputized posse during the Lincoln County War 1878 See also lookfrom regulator intitle regulator Regulate disambiguation Regulation disambiguation Disambig cs Regul tor de Regulator fa fr R gulateur nl Regulator pt Regulador sv Regulator ...   more details



  1. Transmembrane protein

    In plain language, a transmembrane protein TP is a protein that goes from one side of a membrane through ... through the biological membrane. A transmembrane protein is a polytopic protein that spans an entire biological membrane . Transmembrane proteins aggregate and precipitate in water. They require detergent ... of transmembrane proteins 1. a single transmembrane helix bitopic membrane protein 2. a polytopic transmembrane helical protein 3. a polytopic transmembrane sheet protein br The membrane is represented in light brown. All transmembrane proteins are integral membrane protein s, but not all IMPs are transmembrane proteins. ref name Goodman2008 cite book author Steven R. Goodman title Medical ... of transmembrane proteins ref name Xiong2006 cite book author Jin Xiong title Essential bioinformatics ... category of transmembrane proteins. In humans, 27 of all proteins have been estimated to be alpha helical ... transmembrane proteins have simplest up and down topology, which may reflect their common evolutionary ... pass molecules. Type I transmembrane proteins are anchored to the lipid membrane with a stop transfer ... on the type. Thermodynamic stability and folding Stability of helical transmembrane proteins Transmembrane helix Transmembrane helical proteins are unusually stable judging from thermal Denaturation .... For example, the unfolded bacteriorhodopsin in Sodium dodecyl sulfate SDS micelles has four transmembrane ... kcal mol . Folding of helical transmembrane proteins Refolding of helical transmembrane proteins ... within the large transmembrane translocon .The translocon channel provides a highly heterogeneous ... a transmembrane orientation in the translocon although it would be at the membrane surface or unfolded .... Such mechanism is necessary for incorporation of polar helices into structures of transmembrane ... transmembrane proteins Stability of barrel transmembrane proteins is similar to stability of water ...?superfamily 1 Oxidoreduction driven transporters Transmembrane cytochrome b like proteins ...   more details



  1. Transmembrane domain

    Cleanup date March 2007 File Membrane proteins.gif thumb 250px Transmembrane proteins in the lipid bilayer . The boundaries of hydrophobic lipid hydrocarbon core are shown by planes. Nonpolar residues of the protein are exposed to this environment. Transmembrane domain usually denotes a single transmembrane alpha helix of a transmembrane protein . It is called a domain because an alpha helix in a membrane can be folded independently from the rest of the protein, similar to protein domain domains of water soluble proteins . More broadly, a transmembrane domain is any three dimensional protein structure which is thermodynamically stable in a membrane. This may be a single alpha helix, a stable complex of several transmembrane alpha helices, a transmembrane beta barrel , a beta helix of gramicidin A , or any other structure. Transmembrane helices are usually about 20 amino acid s in length, although they may be much longer or shorter. Identification of transmembrane helices Transmembrane helices are visible in structures of membrane proteins determined by crystallography X ray diffraction . They may also be predicted on the basis of hydrophobicity scales . Because the interior of the bilayer and the interiors of most proteins of known structure are hydrophobic , it is presumed to be a requirement of the amino acids that span a membrane that they be hydrophobic as well. However, membrane pumps and ion channels also contain numerous charged and polar residues within the generally non polar transmembrane segments. Using hydrophobicity analysis to predict transmembrane helices enables a prediction in turn of the membrane topology transmembrane topology of a protein i.e. prediction of what parts of it protrude into the cell, what parts protrude out, and how many times the protein ... transmembrane prediction algorithm servers are listed by Expasy http ca.expasy.org tools under ... Transmembrane proteins Category Protein structural motifs sr Transmembranski domen ...   more details



  1. Transmembrane channels

    Multiple issues confusing December 2008 expert December 2008 unreferenced December 2008 date February 2009 orphan February 2009 Transmembrane Channels are channels created by the Complement membrane attack complex membrane attack complex MAC . These holes in the microbial cell membrane result in cytolysis , or the bursting of the cell due to the inflow of extracellular fluid through the channels. The process forms part of an organism s Immune system immune response system. Category Membrane biology cell biology stub ...   more details



  1. Conductance quantum

    Unreferenced auto yes date December 2009 Wikify date December 2009 The conductance quantum is the quantized unit of Electrical conductance conductance . It is defined by math frac 2e 2 h math and equals 77.48 microsiemens, or math 12.9 k Omega 1 math . The conductance quantum is often denoted as math G 0 math . It appears when measuring the conductance of a quantum point contact . The name conductance quantum is somewhat misleading, since it implies that there can only be conductances that are integer multiples of math G 0 math . This is not the case, instead conductance quantum means the conductance of one conductance channel, if the probability of an electron entering this channel being transmitted is unity. If this probability is not unity, there must be a correction for the particular conductance channel. DEFAULTSORT Conductance Quantum Category Quantum electronics Quantum stub fi Konduktanssikvantti ...   more details



  1. Conductance (graph)

    Other uses Conductance disambiguation Conductance In graph theory the conductance of a Graph mathematics graph G V , E measures how well knit the graph is it controls how fast a random walk on G converges to a Uniform distribution discrete uniform distribution . The conductance of a graph is often called the Cheeger constant graph theory Cheeger constant of a graph as the analog of its Cheeger constant counterpart in spectral geometry . fact date May 2010 Since electrical networks are intimately related to random walk s with a long history in the usage of the term conductance , this alternative name helps avoid possible confusion. The conductance of a Cut graph theory cut math S, bar S math in a graph ... in V a ij math is the total number or weight of the edges incident with S . The conductance of the whole graph is the minimum conductance over all the possible cuts math phi G min S subseteq V varphi S . , math For a d regular graph, the conductance is equal to the isoperimetric number divided by d . Generalizations and applications In practical applications, one often considers the conductance only over a cut. A common generalization of conductance is to handle the case of weights assigned to the edges ... weights are added. The notion of conductance underpins the study of percolation in physics and other ... in terms of the conductance of a graph, with weights given by pore sizes. Markov chains For an ergodic reversible Markov chain with an underlying Graph data structure graph G , the conductance is a way to measure how hard it is to leave a small set of nodes. Formally, the conductance of a graph is defined ... by the ergodic flow out of math S math . Alistair Sinclair showed that conductance is closely tied to mixing time in ergodic reversible Markov chains. We can also view conductance in a more probabilistic ... S given that we were in that set to begin with, the conductance is the minimal math Phi S math over sets math S math that have a total stationary probability of at most 1 2. Conductance is related to Markov ...   more details



  1. Skin conductance

    Image gsr.svg thumb A sample GSR signal of 60 seconds. 400px right Skin conductance , also known as galvanic skin response GSR , electrodermal response EDR , psychogalvanic reflex PGR , skin conductance response SCR or skin conductance level SCL , is a method of measuring the electrical conductance of the human skin skin , which varies with its moisture level. This is of interest because the sweat glands are controlled by the sympathetic nervous system , ref Cite book last1 Martini first1 Frederic last2 Bartholomew first2 Edwin title Essentials of Anatomy & Physiology publisher Benjamin Cummings location San Francisco year 2003 page 267 isbn 0 13 061567 6 ref so skin conductance is used as an indication of psychological or physiological arousal . There has been a long history of electrodermal activity research, most of it dealing with spontaneous fluctuations or reactions to stimuli. Description The device measures the electrical conductance which is the inverse of the electrical resistance between 2 points, and is essentially a type of ohmmeter . The two paths for current are along the surface of the skin and through the body. Active measuring involves sending a small amount of current ... physiology stimuli , the conductance can vary by several siemens unit microsiemens . When correctly calibrated, the skin conductance can measure these subtle differences. There is a relationship ... skin conductance responses. These reactions are utilized as part of the polygraph or lie detector ... areas of psychological research. As of 2010, skin conductance monitoring equipment is still in use because it is inexpensive e.g. a galvanometer . Uses Skin conductance measurement is one component of polygraph ... meter , which is used by the Church of Scientology , is a skin conductance measurement device. ref ... page 31 ref Skin conductance measurement is also becoming more popular in hypnotherapy and psychotherapy ... physiology DEFAULTSORT Skin Conductance Category Measuring instruments Category Electronic test equipment ...   more details



  1. Molecular conductance

    Molecular Conductance math G I V math , or the Electrical conductance conductance of a single molecule , is a physical quantity in molecular electronics . Molecular conductance is dependent on the surrounding conditions e.g. pH , temperature, pressure , as well as the properties of measuring device. Many experimental techniques have been developed in an attempt to measure this quantity directly, but theorists and experimentalists still face many challenges. ref Chen F, Hihath J, Huang Z, Li X, Tao NJ. 2007. Measurement of single molecule conductance. Annu. Rev. Phys. Chem. 58 535 64 ref br Recently, a great deal of progress has been made in the development of reliable conductance measuring techniques. These techniques can be divided into two categories molecular film experiments, which measure groups of tens of molecules, and single molecule measuring experiments. Molecular film experiments Molecular film experiments generally consist of the sandwiching of a thin layer of molecules between two electrodes which are used to measure the conductance through the layer. Two of the most successful implementations of this concept have been the bulk electrode approach and in the use of nanoelectrodes. In the bulk electrode approach, a molecular film is typically immobilized onto one electrode and an upper electrode is brought into contact with it allowing for a measure of current flow as a function of applied bias voltage . The nanoelectrode class of experiments, in creatively utilizing equipment such as atomic force microscope tips and small radius wires, are able to perform the same sorts of current versus applied bias measurements but on a much smaller number of molecules as compared to bulk electrode. For instance, the tip of an atomic force microscope can be used as a top electrode ... experimenters a better look at molecular conductance. These fall under the categories ... contact has an effect on the conductance and can change from one run of the experiment to the next ...   more details



  1. Fluid conductance

    Unreferenced date December 2009 Orphan date December 2009 Fluid conductance is related to the rate at which a unit of material can transmit fluids, and is used mainly in hydrology in relation to river and lake bottoms. It is an application of Permeability fluid intrinsic permeability to a unit of material with a defined area and thickness. In hydrology, the magnitude of conductance affects the rate of groundwater recharge or interaction with groundwater . This parameter is often used in such computer modelling codes as MODFLOW . Example For example, the conductance of water through a stream bed is math C b K frac A b math where math C b math is the conductance of the stream bed L sup 2 sup T sup 1 sup m sup 2 sup s sup 1 sup or ft sup 2 sup day sup 1 sup math K math is the hydraulic conductivity of the stream bed materials LT sup 1 sup m s sup 1 sup or ft day sup 1 sup math A math is the area of the stream bed L sup 2 sup m sup 2 sup or ft sup 2 sup math b math is the thickness of the stream bed sediments L m or ft The volumetric discharge through the stream bed can be calculated if the difference in hydraulic head is known math Q b C b h b h , math where math Q b math is the volumetric discharge through the stream bed L sup 3 sup T sup 1 sup m sup 3 sup s sup 1 sup or ft sup 3 sup day sup 1 sup math h b math is the hydraulic head of the river elevation stage math h math is the hydraulic head of the aquifer below the stream bed L m or ft See also Vascular resistance DEFAULTSORT Fluid Conductance Category Hydrology ...   more details



  1. Mediastinal fibrosis

    Expert subject Medicine date November 2008 Infobox disease Name Mediastinal fibrosis Image Caption DiseasesDB 30764 ICD10 ICD9 ICD9 519.3 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID Mediastinal fibrosis is a rare late complication of histoplasmosis . It is characterized by invasive, calcified fibrosis centered on lymph nodes that block major vessels and airways. ref cite journal author Davis AM, Pierson RN, Loyd JE title Mediastinal fibrosis journal Seminars in respiratory infections volume 16 issue 2 pages 119 30 year 2001 pmid 11521244 doi 10.1053 srin.2001.24242 ref See also Mediastinum Mediastinitis References references External links Chorus 00762 Category Pulmonology Category Lymphatic system disease stub ...   more details



  1. Injection fibrosis

    Injection fibrosis is a complication of intramuscular injection , occurring especially often in infants and children. Injections are often delivered to the quadriceps , triceps , and gluteal muscles , and thus the complication often manifests itself in those muscles. Patients are unable to fully flexion flex the affected muscle. The condition is painless but progressively worsens over time. Orthopedic surgery is the typical treatment. ref cite journal author Mukherjee PK, Das AK. title Injection fibrosis in the quadriceps femoris muscle in children journal J Bone Joint Surg Am volume 62 issue 3 pages 453 6 year 1980 pmid 7364817 doi ref See also Fibrosis References references External links http injectionfibrosis.org Site that hosts many academic papers about injection fibrosis Category Musculoskeletal system Category Musculoskeletal disorders disease stub ...   more details



  1. Pulmonary fibrosis

    Image IPF amiodarone.JPG thumb A chest X ray demonstrating pulmonary fibrosis due to amiodarone . Pulmonary fibrosis is the formation or development of excess fibrous connective tissue fibrosis in the lung ... Pulmonary Fibrosis Foundation What is Pulmonary Fibrosis? Last updated October 19, 2009 ref Symptoms Symptoms of pulmonary fibrosis are mainly Shortness of breath , particularly with exertion ... ref name pff Loss of appetite and rapid weight loss ref name pff Pulmonary fibrosis is suggested .... ref name medicinenet Cause See Interstitial lung disease Pulmonary fibrosis may be a secondary ... pff However, pulmonary fibrosis can also appear without any known cause. In this case, it is termed idiopathic . ref name nlm Most idiopathic cases are diagnosed as idiopathic pulmonary fibrosis . This is a diagnosis ... C has been found to exist in some families with a history of pulmonary fibrosis. ref name pff Diseases and conditions that may cause pulmonary fibrosis as a secondary effect include Inhalation of environmental ... pulmonaryfibrosis.html MedlinePlus Pulmonary Fibrosis Date last updated 09 February 2010 ref Hypersensitivity ... http www.medicinenet.com pulmonary fibrosis article.htm MedicineNet.com Pulmonary Fibrosis Retrieved ... pulmonary fibrosis a case report journal J Med Case Reports volume 2 issue pages 169 year 2008 pmid ... ref Radiation therapy to the chest ref name pff ref name medicinenet Pathogenesis See Fibrosis Pulmonary fibrosis involves gradual exchange of normal lung parenchyma with fibrotic tissue. The replacement ... name pff In addition, decreased compliance makes pulmonary fibrosis a restrictive lung disease . It is the main ... involve pulmonary fibrosis. Diagnosis The diagnosis can be confirmed by lung biopsy . ref ... to confirm the presence and pattern of fibrosis as well as presence of other features that may ... a pattern of so called non specific interstitial fibrosis. ref name medicinenet Misdiagnosis is common because while overall, pulmonary fibrosis is not rare, each individual type of pulmonary fibrosis ...   more details



  1. Bauxite fibrosis

    Infobox disease Name Bauxite fibrosis ICD10 ICD10 J 63 1 j 60 ICD9 ICD9 503 ICDO Image Bauxite with unweathered rock core. C 021.jpg Caption Bauxite with unweathered rock core OMIM MedlinePlus eMedicineSubj eMedicineTopic DiseasesDB Bauxite pneumoconiosis , also known as Shaver s disease , corundum smelter s lung , bauxite lung or bauxite smelters disease , is a progressive form of pneumoconiosis caused by exposure to bauxite fumes which contain aluminium and silica particulates. It is typically seen in workers involved in the smelting of bauxite to produce corundum . Presentation Initially, the disease appears as alveolitis , and then progresses to emphysema . Patients may develop pneumothorax collapsed lung . Respiratory pathology DEFAULTSORT Bauxite Fibrosis Category Lung diseases due to external agents disease stub ...   more details



  1. Retroperitoneal fibrosis

    fibrosis cannot be made on the basis of results of laboratory studies. CT is the best diagnostic ... be done if the location of fibrosis is atypical or if there is an inadequate response to initial ... cite journal author van Bommel EF title Retroperitoneal fibrosis journal Neth J Med volume ...   more details




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