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Phosphine ( IUPAC name: phosphane ) is a colorless, flammable, highly toxic compound with the chemical formula P H 3 , classed as a pnictogen hydride . Pure phosphine is odorless, but technical grade samples have a highly unpleasant odor like rotting fish, due to the presence of substituted phosphine and diphosphane ( ... | https://en.wikipedia.org/wiki/PH3 |
Phosphonium iodide is a chemical compound with the formula PH 4 I . It is an example of a salt containing an unsubstituted phosphonium cation ( PH + 4 ). Phosphonium iodide is commonly used as storage for phosphine [ 2 ] and as a reagent for substituting phosphorus into organic molecules. [ 3 ]
Phosphonium iodide is p... | https://en.wikipedia.org/wiki/PH4I |
A phosphorane ( IUPAC name: λ 5 -phosphane ) is a functional group in organophosphorus chemistry with pentavalent phosphorus . Phosphoranes have the general formula PR 5 .
Phosphoranes of the type PX 5 adopt a trigonal bipyramidal molecular geometry with the two apical bonds longer than the three equatorial bonds. Hyp... | https://en.wikipedia.org/wiki/PH5 |
Poly(3-hydroxybutyrate- co -3-hydroxyvalerate) , commonly known as PHBV , is a polyhydroxyalkanoate -type polymer. It is biodegradable , nontoxic , biocompatible plastic produced naturally by bacteria and a good alternative for many non-biodegradable synthetic polymers . It is a thermoplastic linear aliphatic polyester... | https://en.wikipedia.org/wiki/PHBV |
PHIB-BLAST
The Pathogen-Host Interactions database ( PHI-base ) [ 1 ] is a biological database that contains manually curated information on genes experimentally proven to affect the outcome of pathogen-host interactions . The database has been maintained by researchers at Rothamsted Research and external collaborator... | https://en.wikipedia.org/wiki/PHI-base |
The PHLPP isoforms ( PH domain and Leucine rich repeat Protein Phosphatases ) are a pair of protein phosphatases , PHLPP1 and PHLPP2 , that are important regulators of Akt serine-threonine kinases ( Akt1 , Akt2 , Akt3 ) and conventional/novel protein kinase C (PKC) isoforms. PHLPP may act as a tumor suppressor in seve... | https://en.wikipedia.org/wiki/PHLPP |
PHOSFOS (Photonic Skins For Optical Sensing) is a research and technology development project co-funded by the European Commission .
The PHOSFOS project [ 1 ] is developing flexible and stretchable foils or skins that integrate optical sensing elements with optical and electrical devices, such as onboard signal proces... | https://en.wikipedia.org/wiki/PHOSFOS |
The PHO sphorylation SI te DA tabase PHOSIDA integrates thousands of high-confidence in vivo phosphosites identified in various species on the basis of mass spectrometry technology. For each phosphosite, PHOSIDA lists matching kinase motifs, predicted secondary structures, conservation patterns, and its dynamic regulat... | https://en.wikipedia.org/wiki/PHOSIDA |
A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH ( acidity or basicity ) of the solution can be determined visually or spectroscopically by changes in absorption and/or emission properties. [ 1 ] Hence, a pH indicator is a chemical detector for hydronium ions (H 3 O + ) o... | https://en.wikipedia.org/wiki/PH_indicator |
A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions , indicating its acidity or alkalinity expressed as pH . [ 2 ] The pH meter measures the difference in electrical potential between a pH electrode and a reference electrode, and so the pH meter is sometimes referred t... | https://en.wikipedia.org/wiki/PH_meter |
pH partition theory is a theory developed in the early 20th century as an attempt to explain drug bioavailability in humans. It describes the tendency for weak acids to accumulate in basic fluid compartments , and weak bases to accumulate in acidic compartments. The negative charge of deprotonated acids in basic soluti... | https://en.wikipedia.org/wiki/PH_partition_theory |
pHydrion is the trademarked name for a popular line of chemical test products, marketed by Micro Essential Laboratory, Inc. , the original manufacturer of Hydrion and pHydrion products. The trademarked pHydrion product line comprises chemical test papers, chemical indicators, chemical test kits, chemical indicator kits... | https://en.wikipedia.org/wiki/PHydrion |
The PI3K/AKT/mTOR pathway is an intracellular signaling pathway important in regulating the cell cycle . Therefore, it is directly related to cellular quiescence , proliferation , cancer , and longevity. PI3K activation phosphorylates and activates AKT , localizing it in the plasma membrane . [ 1 ] AKT can have a numbe... | https://en.wikipedia.org/wiki/PI3K/AKT/mTOR_pathway |
Phosphorus pentaiodide is a hypothetical inorganic compound with formula P I 5 . The existence of this compound has been claimed intermittently since the early 1900s. [ 2 ] The claim is disputed: "The pentaiodide does not exist (except perhaps as PI 3 · I 2 , but certainly not as [PI 4 ] + I − ...)". [ 3 ]
Phosphorus ... | https://en.wikipedia.org/wiki/PI5 |
PICMG 1.1 is a PICMG specification that defines how PCI to PCI bridging is accomplished in PICMG 1.0 systems. [ 1 ]
Adopted : 5/25/1995
Current Revision : 1.1
This computing article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/PICMG_1.1 |
PICMG 2.11 is a specification by PICMG that defines the electrical and mechanical requirements relating to plug-in power modules in CompactPCI systems. [ 1 ]
Adopted : 10/1/1999
Current Revision : 1.0
This computing article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/PICMG_2.11 |
PICMG 2.2 is a specification by PICMG that standardizes pin assignments for PICMG 2.0 CompactPCI to include VME64 Extensions. [ 1 ]
Adopted : 9/9/1998
Current Revision : 1.0
This computing article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/PICMG_2.2 |
PICMG 2.4 is a specification by PICMG that standardizes user IO pin mappings from ANSI / VITA standard IP sites to J3/P3, J4/P4, and J5/P5 on a CompactPCI backplane. [ 1 ]
Adopted: 9 September 1998
Current revision: 1.0
This computing article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/PICMG_2.4 |
PICRUSt [ 1 ] is a bioinformatics software package. The name is an abbreviation for Phylogenetic Investigation of Communities by Reconstruction of Unobserved States.
The tool serves in the field of metagenomic analysis where it allows inference of the functional profile of a microbial community based on marker gene su... | https://en.wikipedia.org/wiki/PICRUSt |
PIPES ( piperazine- N , N ′ -bis(2-ethanesulfonic acid) ) is a frequently used buffering agent in biochemistry . It is an ethanesulfonic acid buffer developed by Good et al. in the 1960s. [ 1 ]
PIPES has two pKa values. One pKa (6.76 at 25 °C) is near the physiological pH which makes it useful in cell culture work. It... | https://en.wikipedia.org/wiki/PIPES |
The PI (or photosynthesis-irradiance ) curve is a graphical representation of the empirical relationship between solar irradiance and photosynthesis . A derivation of the Michaelis–Menten curve, it shows the generally positive correlation between light intensity and photosynthetic rate. It is a plot of photosynthetic... | https://en.wikipedia.org/wiki/PI_curve |
1T5A , 1ZJH , 3BJF , 3BJT , 3G2G , 3GQY , 3GR4 , 3H6O , 3ME3 , 3SRD , 3SRF , 3SRH , 3U2Z , 4B2D , 4FXF , 4FXJ , 4G1N , 4JPG , 4QG6 , 4QG8 , 4QG9 , 4QGC , 4RPP , 4WJ8 , 4YJ5
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NM_001253883 NM_011099
NP_002645 NP_872270 NP... | https://en.wikipedia.org/wiki/PKM2 |
Proximity ligation-assisted chromatin immunoprecipitation sequencing (PLAC-seq) is a chromatin conformation capture (3C)-based technique to detect and quantify genomic chromatin structure from a protein-centric approach. [ 1 ] PLAC-seq combines in situ Hi-C and chromatin immunoprecipitation (ChIP) , which allows for th... | https://en.wikipedia.org/wiki/PLAC-Seq |
PLATO ( P ackage for L inear-combination of AT omic O rbitals) is a suite of programs for electronic structure calculations. It receives its name from the choice of basis set (atomic orbitals) used to expand the electronic wavefunctions.
PLATO is a code, written in C, for the efficient modelling of materials. It is a ... | https://en.wikipedia.org/wiki/PLATO_(computational_chemistry) |
PLAnetary Transits and Oscillations of stars ( PLATO ) is a space telescope under development by the European Space Agency for launch in 2026. [ 4 ] It is the third medium-class mission in ESA's Cosmic Vision programme and is named after the influential Greek philosopher Plato .
The mission goals are to search for pla... | https://en.wikipedia.org/wiki/PLATO_(spacecraft) |
PLINK [ 1 ] is a free, commonly used, open-source whole-genome association analysis toolset designed by Shaun Purcell . The software is designed flexibly to perform a wide range of basic, large-scale genetic analyses.
PLINK currently supports following functionalities:
PLINK has its own format of text files ( .ped ) ... | https://en.wikipedia.org/wiki/PLINK_(genetic_tool-set) |
A PLL multibit or multibit PLL is a phase-locked loop (PLL) which achieves improved performance compared to a unibit PLL by using more bits . Unibit PLLs use only the most significant bit (MSB) of each counter's output bus to measure the phase , while multibit PLLs use more bits. [ 1 ] PLLs are an essential component i... | https://en.wikipedia.org/wiki/PLL_multibit |
The term PLOKTA (sometimes rendered in lowercase, plokta ) /plok't*/ is an acronym for P ress L ots O f K eys T o A bort , and essentially means pressing random keys in an attempt to get some response from a ( computer ) system.
One might plokta when the abort procedure for a program is not known, or when trying to fi... | https://en.wikipedia.org/wiki/PLOKTA |
PLUMED is an open-source library implementing enhanced-sampling algorithms, various free-energy methods , and analysis tools for molecular dynamics simulations. It is designed to be used together with ACEMD, AMBER , DL_POLY, GROMACS , LAMMPS , NAMD , OpenMM , ABIN, CP2K , i-PI, PINY-MD, and Quantum ESPRESSO , but it ca... | https://en.wikipedia.org/wiki/PLUMED |
Poly (tetrahydropyran-2-yl N-(2 methacryloxyethyl) carbamate)-b-(methyl 4-(3-methacryloyloxypropoxy) cinnamate) ( PMCC ) is a synthetic polymer with thermally active groups, which upon heating, decomposes and exposes primary amines , providing a basis for surface modification. The structure of PMCC is based on a PMMA b... | https://en.wikipedia.org/wiki/PMCC_polymer |
PMHC cellular microarrays are a type of cellular microarray that has been spotted with pMHC complexes peptide- MHC class I or peptide- MHC class II .
These biochips can be used to interrogate immune cells, particularly antigen-specific T cells , from clinical samples for what they are capable of
recognizing. They can... | https://en.wikipedia.org/wiki/PMHC_cellular_microarray |
PMM2 deficiency or PMM2-CDG , previously CDG-Ia , is a very rare genetic disorder caused by mutations in PMM2 . It is an autosomal recessive disease that is the most common type of congenital disorder of glycosylation or CDG. [ 2 ] PMM2-CDG is the most common of a growing family of more than 130 extremely rare inherite... | https://en.wikipedia.org/wiki/PMM2_deficiency |
PM Sayeed Marine Birds Conservation Reserve is the first protected area for marine birds in India . It is located in the Indian Union Territory of Lakshadweep . It was formed in 2020. It covers an area of 62 km 2 . [ 1 ]
The PM Sayeed Marine Birds Conservation Reserve will be home to four species of pelagic seabirds –... | https://en.wikipedia.org/wiki/PM_Sayeed_Marine_Birds_Conservation_Reserve |
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Proline-rich nuclear receptor coactivator 1 is a protein that, in humans, is encoded by the PNRC1 gene . [ 5 ] [ 6 ]
PNRC1 functions as a coactivator for several nuclear receptors including AR ,... | https://en.wikipedia.org/wiki/PNRC1 |
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Proline-rich nuclear receptor coactivator 2 is a protein that in humans is encoded by the PNRC2 gene . [ 5 ] [ 6 ]
This article on a gene on human chromosome 1 is a stub . You can help Wikipedia by expa... | https://en.wikipedia.org/wiki/PNRC2 |
Phosphates are the naturally occurring form of the element phosphorus . [ 2 ]
In chemistry , a phosphate is an anion , salt , functional group or ester derived from a phosphoric acid . It most commonly means orthophosphate , a derivative of orthophosphoric acid, a.k.a. phosphoric acid H 3 PO 4 .
The phosphate or ort... | https://en.wikipedia.org/wiki/PO4(3-) |
Silver phosphate or silver orthophosphate is a light sensitive, yellow, water-insoluble chemical compound composed of silver and phosphate ions of formula Ag 3 P O 4 .
Silver phosphate is formed as a yellow solid precipitate by the reaction between a soluble silver salt, such as silver nitrate , with a soluble orthoph... | https://en.wikipedia.org/wiki/PO4Ag3 |
POCUS ( point-of-care ultrasonography or point-of-care ultrasound ) is defined as the acquisition, interpretation, and immediate clinical integration of diagnostic medical ultrasound imaging performed by a treating clinician during a clinical interaction rather than by a radiologist, cardiologist, or other consulting p... | https://en.wikipedia.org/wiki/POCUS |
Phosphoryl chloride (commonly called phosphorus oxychloride ) is a colourless liquid with the formula P O Cl 3 . It hydrolyses in moist air releasing phosphoric acid and fumes of hydrogen chloride . It is manufactured industrially on a large scale from phosphorus trichloride and oxygen or phosphorus pentoxide . [ 4 ] I... | https://en.wikipedia.org/wiki/POCl3 |
PODi, the Digital Printing Initiative is an organization that helps set strategic direction in the digital print industry.
Membership – PODi members are industry leaders representing all facets of the digital printing ecosystem, including print and marketing service providers, enterprise marketers and manufacturers of... | https://en.wikipedia.org/wiki/PODi |
Phosphoric chloride difluoride POF 2 Cl is a colourless gas. At one atmosphere pressure the gas condenses to a liquid at 3.1 °C and freezes at −96.4. [ 3 ] Alternate names are difluorophosphoryl chloride [ 3 ] or phosphoryl chloride difluoride .
The critical temperature of POF 2 Cl is 150.6 at a critical pressure of 4... | https://en.wikipedia.org/wiki/POF2Cl |
Phosphoryl fluoride (commonly called phosphorus oxyfluoride ) is a compound with the chemical formula P O F 3 . It is a colorless gas that hydrolyzes rapidly. It has a critical temperature of 73 °C and a critical pressure of 4.25 bars . [ 1 ]
Phosphorus oxyfluoride is prepared by partial hydrolysis of phosphorus penta... | https://en.wikipedia.org/wiki/POF3 |
The PONA number is an index for oil components used to determine the paraffins (P), olefins (O), naphthenes (N) and aromatics (A) content [ 1 ] of FCC ( fluid catalytic cracking ) and coker ( visbreaker ) gasoline .
The PONA number plays a significant role in determining the quality of naphtha . Various grades of naph... | https://en.wikipedia.org/wiki/PONA_number |
POODLE (which stands for " Padding Oracle On Downgraded Legacy Encryption ") is a security vulnerability which takes advantage of the fallback to SSL 3.0 . [ 1 ] [ 2 ] [ 3 ] If attackers successfully exploit this vulnerability, on average, they only need to make 256 SSL 3.0 requests to reveal one byte of encrypted mess... | https://en.wikipedia.org/wiki/POODLE |
In programming language theory , the POPLmark challenge (from "Principles of Programming Languages benchmark", formerly Mechanized Metatheory for the Masses! ) (Aydemir, 2005) is a set of benchmarks designed to evaluate the state of automated reasoning (or mechanization) in the metatheory of programming languages, and ... | https://en.wikipedia.org/wiki/POPLmark_challenge |
In functional analysis and quantum information science , a positive operator-valued measure ( POVM ) is a measure whose values are positive semi-definite operators on a Hilbert space . POVMs are a generalization of projection-valued measures (PVM) and, correspondingly, quantum measurements described by POVMs are a gene... | https://en.wikipedia.org/wiki/POVM |
PP2 is a substance that has frequently been used in cancer research as a "selective" inhibitor for Src-family kinases . It strongly inhibits the kinases Lck ( IC 50 =4 nM ), Fyn (5 nM) and Hck (5 nM), shows weaker inhibition of epidermal growth factor receptor (480 nM) and practically no inhibition of ZAP-70 (100 μM) a... | https://en.wikipedia.org/wiki/PP2_(kinase_inhibitor) |
PP3 is free software that produces sky charts , focussing on high quality graphics and typography. It is distributed a license based on the MIT License , but with this restriction added:
If you copy or distribute a modified version of this Software, the entire resulting derived work must be given a different name and ... | https://en.wikipedia.org/wiki/PP3 |
1XB7 , 3B1M , 3CS8 , 3D24 , 3U9Q , 3V9T , 3V9V , 4QJR , 4QK4
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NP_001389920
Peroxisome proliferator-activated receptor gamma coactivator 1-alpha ( PGC-1... | https://en.wikipedia.org/wiki/PPARGC1A |
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NP_001166169 NP_001166170 NP_573570
NP_573512 NP_001351925
Peroxisome proliferator-activated receptor gamma coactivator 1-beta is a protein that in humans is encoded by the PPARGC1B ... | https://en.wikipedia.org/wiki/PPARGC1B |
A PPO inhibitor may inhibit two unrelated enzymes abbreviated "PPO". They are: | https://en.wikipedia.org/wiki/PPO_inhibitor |
PPT Petoletka ( Serbian : ППТ-Петолетка ) is a Serbian manufacturer of hydraulics and pneumatics, headquartered in Trstenik , Serbia.
"Prva Petoletka"-Trstenik was founded on 23 March 1949, by decision of the Government of People's Federal Republic of Yugoslavia , at the beginning of the first Five-year plan of develo... | https://en.wikipedia.org/wiki/PPT-Petoletka |
Pentaphenylphosphorus is an organic phosphorane containing five phenyl groups connected to a central phosphorus atom. The phosphorus atom is considered to be in the +5 oxidation state . The chemical formula could be written as P(C 6 H 5 ) 5 or Ph 5 P, where Ph represents the phenyl group. It was discovered and reported... | https://en.wikipedia.org/wiki/PPh5 |
PQS is a general purpose quantum chemistry program. Its roots go back to the first ab initio gradient program developed in Professor Peter Pulay 's group but now it is developed and distributed commercially by Parallel Quantum Solutions. There is a reduction in cost for academic users and a site license. Its strong poi... | https://en.wikipedia.org/wiki/PQS_(software) |
PRIME ( probe incorporation mediated by enzymes ) is a molecular biology research tool developed by Alice Y. Ting and the Ting Lab at MIT for site-specific labeling of proteins in living cells with chemical probes. [ 1 ] [ 2 ] Probes often have useful biophysical properties, such as fluorescence , and allow imaging of ... | https://en.wikipedia.org/wiki/PRIME_(labeling_technique) |
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NP_997637 NP_001356318 NP_001356319 NP_001263218.1 NP_001265362.1 NP_002725.1 NP_997636.1 NP_997637.1
NP_001349606 NP_001360841 NP_001360842
cAMP-dependent protein kinase type... | https://en.wikipedia.org/wiki/PRKAR1A |
Protein arginine N- methyltransferase -4 (PRMT4/CARM1) [ 1 ] [ 2 ] [ 3 ] methylation of arginine residues within proteins plays a critical key role in transcriptional regulation (see the PRMT4 pathway on the left). PRMT4 binds to the classes of transcriptional activators known as p160 and CBP/p300. [ 4 ] The modified f... | https://en.wikipedia.org/wiki/PRMT4_pathway |
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Proline-rich basic protein 1 (PROB1) is a protein encoded by the PROB1 gene located on human chromosome 5 , open reading frame 65. PROB1 is also known as C5orf65 and weakly similar to basic proline-rich prot... | https://en.wikipedia.org/wiki/PROB1 |
PROBA-2 is the second satellite in the European Space Agency 's series of PROBA low-cost satellites that are being used to validate new spacecraft technologies while also carrying scientific instruments. [ 3 ] PROBA-2 is a small satellite (130 kg) developed under an ESA General Support Technology Program (GSTP) contrac... | https://en.wikipedia.org/wiki/PROBA-2 |
PRODIGAL ( proactive discovery of insider threats using graph analysis and learning) is a computer system for predicting anomalous behavior among humans, by data mining network traffic such as emails, text messages and server log entries. [ 1 ] It is part of DARPA 's Anomaly Detection at Multiple Scales (ADAMS) project... | https://en.wikipedia.org/wiki/PRODIGAL |
PROX is an acronym for PReferential OXidation , that refers to the preferential oxidation of carbon monoxide in a gas mixture by a catalyst . It is intended to remove trace amounts of CO from H 2 /CO/CO 2 mixtures produced by steam reforming and water-gas shift . An ideal PROX catalyst preferentially oxidizes carbon mo... | https://en.wikipedia.org/wiki/PROX |
pSC101 is a DNA plasmid that is used as a cloning vector in genetic cloning experiments. pSC101 was the first cloning vector, used in 1973 by Herbert Boyer and Stanley Norman Cohen . Using this plasmid they have demonstrated that a gene from a frog could be transferred into bacterial cells and then expressed by the bac... | https://en.wikipedia.org/wiki/PSC101 |
Thiophosphoryl chloride is an inorganic compound with the chemical formula P S Cl 3 . [ 5 ] It is a colorless pungent smelling liquid that fumes in air. It is synthesized from phosphorus chloride and used to thiophosphorylate organic compounds, such as to produce insecticides .
Thiophosphoryl chloride can be generated... | https://en.wikipedia.org/wiki/PSCl3 |
Phosphorothioic chloride difluoride or thiophosphoryl chloride difluoride is a chemical compound with formula P S Cl F 2 . It is normally found as a gas boiling at 6.3 °C and melting at −155.2 °C. The density of the gas at standard conditions is 5.579 g/L. [ 1 ] Critical pressure is 41.4 bars , and critical temperature... | https://en.wikipedia.org/wiki/PSClF2 |
Thiophosphoryl fluoride is an inorganic molecular gas with formula P S F 3 containing phosphorus , sulfur and fluorine . It spontaneously ignites in air and burns with a cool flame . The discoverers were able to have flames around their hands without discomfort, [ 5 ] and called it "probably one of the coldest flames k... | https://en.wikipedia.org/wiki/PSF3 |
Psi is an ab initio computational chemistry package originally written by the research group of Henry F. Schaefer, III ( University of Georgia ). Utilizing Psi, one can perform a calculation on a molecular system with various kinds of methods such as Hartree-Fock , Post-Hartree–Fock electron correlation methods, and de... | https://en.wikipedia.org/wiki/PSI_(computational_chemistry) |
VMware ESXi (formerly ESX ) is an enterprise-class , type-1 hypervisor developed by VMware , a subsidiary of Broadcom , for deploying and serving virtual computers . As a type-1 hypervisor, ESXi is not a software application that is installed on an operating system (OS); instead, it includes and integrates vital OS com... | https://en.wikipedia.org/wiki/PSOD |
PSO J172.3556+18.7734 is an astrophysical jet that was discovered in May 2011. It was originally thought to be a quasar by astronomers; as of March 8, 2021, it is now classified as a cosmic jet (astrophysical jet). [ 1 ] [ 2 ] As of 2021 [update] , it is the farthest jet discovered with a redshift of 6.82. [ 3 ] [ 4 ] ... | https://en.wikipedia.org/wiki/PSO_J172.3556+18.7734 |
PTC rubber [ 1 ] is a silicone rubber which conducts electricity with a resistivity that increases exponentially with increasing temperature for all temperatures up to a temperature where the resistivity grows to infinity. Above this temperature the PTC rubber is an electrical insulator . PTC rubber is made from polydi... | https://en.wikipedia.org/wiki/PTC_rubber |
The Photothermoelectric (PTE) effect is based on the Seebeck effect , where the heating is achieved by absorbing light on a thermoelectric (TE) material . Synonymous to PPE technique for thermal characterization of materials, PTE can be used to thermally characterize both thermoelectrics (acts as sensor and sample) and... | https://en.wikipedia.org/wiki/PTE_technique |
PTFE fiber is a chemically resistant material. It is used in woven form in certain pump packings [ 1 ] as well as in nonwoven form in hot gas bag filters for industries with corrosive exhausts. [ 2 ] [ 3 ]
Because PTFE is relatively insoluble and has a very high melting point, PTFE fibers can not be fashioned from co... | https://en.wikipedia.org/wiki/PTFE_fiber |
pUC19 is one of a series of plasmid cloning vectors designed by Joachim Messing and co-workers. [ 1 ] The designation "pUC" is derived from the classical "p" prefix (denoting " plasmid ") and the abbreviation for the University of California , where early work on the plasmid series had been conducted. [ 2 ] The pUC pla... | https://en.wikipedia.org/wiki/PUC19 |
PUREX ( plutonium uranium reduction extraction ) is a chemical method used to purify fuel for nuclear reactors or nuclear weapons . [ 7 ] It is based on liquid–liquid extraction ion-exchange . [ 8 ] PUREX is the de facto standard aqueous nuclear reprocessing method for the recovery of uranium and plutonium from used nu... | https://en.wikipedia.org/wiki/PUREX |
PUVA ( psoralen and UVA) is an ultraviolet light therapy treatment for skin diseases: vitiligo , eczema , psoriasis , graft-versus-host disease , mycosis fungoides , large plaque parapsoriasis , and cutaneous T-cell lymphoma , using the sensitizing effects of the drug psoralen . [ 1 ] : 686 [ 2 ] [ 3 ] The psoralen is ... | https://en.wikipedia.org/wiki/PUVA_therapy |
PVSRIPO , or PVS-RIPO , is the name of a modified polio virus that has recently shown promise for treating cancer . It is the focus of clinical trials being conducted at Duke University . [ 1 ]
PVS-RIPO consists of a genetically modified nonpathogenic version of the oral poliovirus Sabin type 1. The internal ribosome ... | https://en.wikipedia.org/wiki/PVSRIPO |
In 2001, the IETF set up the Pseudowire Emulation Edge to Edge working group , and this group was given the initialism PWE3 (the 3 standing for the third power of E , i.e. EEE ). The working group was chartered to develop an architecture for service provider edge-to-edge pseudowires and service-specific documents detai... | https://en.wikipedia.org/wiki/PWE3 |
The PX4 autopilot is an open-source system for autonomous aircraft. The project was started in 2009.
PX4 supports the following features:
PX4 is capable of integrating with other autopilot software, such as the QGroundControl ground control station software, via the MAVLink protocol.
PX4 is open-source and available... | https://en.wikipedia.org/wiki/PX4_autopilot |
P elements are transposable elements that were discovered in Drosophila as the causative agents of genetic traits called hybrid dysgenesis . The transposon is responsible for the P trait of the P element and it is found only in wild flies. They are also found in many other eukaryotes. [ 1 ]
The name was first suggeste... | https://en.wikipedia.org/wiki/P_element |
The P ring forms part of the basal body of the bacterial appendage known as the flagellum . It is known to be embedded in the peptidoglycan cell wall . [ 1 ] Together with the L ring , it has the function of anchoring the flagellum to the cell surface. [ 2 ]
This bacteria -related article is a stub . You can help Wiki... | https://en.wikipedia.org/wiki/P_ring |
A P wave ( primary wave or pressure wave ) is one of the two main types of elastic body waves , called seismic waves in seismology. P waves travel faster than other seismic waves and hence are the first signal from an earthquake to arrive at any affected location or at a seismograph . P waves may be transmitted through... | https://en.wikipedia.org/wiki/P_wave |
Protactinium(V) oxide is a chemical compound with the formula Pa 2 O 5 . When it is reduced with hydrogen , it forms PaO 2 . Aristid V. Grosse was first to prepare 2 mg of Pa 2 O 5 in 1927. [ 1 ] Pa 2 O 5 does not dissolve in concentrated HNO 3 , but dissolves in HF and in a HF + H 2 SO 4 mixture and reacts at high tem... | https://en.wikipedia.org/wiki/Pa2O5 |
PaNie is a 25 kDa protein produced by the root rot disease-causing pathogen Pythium aphanidermatum . It stands for Pythium aphanidermatum Necrosis inducing elicitor . PaNie (aka NLP Pya ) belongs to a family of elicitors named the Nep1 -like proteins (NLPs), which cause necrosis when injected into the leaves of dicotyl... | https://en.wikipedia.org/wiki/PaNie |
The Paal–Knorr synthesis is a reaction used to synthesize substituted furans , pyrroles , or thiophenes from 1,4-diketones . It is a synthetically valuable method for obtaining substituted furans and pyrroles, which are common structural components of many natural products. It was initially reported independently by Ge... | https://en.wikipedia.org/wiki/Paal–Knorr_synthesis |
Pace count beads , pacer beads or ranger beads are a manual counting tool used to keep track of distance traveled through a pace count . It is used in military land navigation or orienteering . [ 1 ] Stringed beads found at stoneage sites in Africa may have been used for pace counting, and modified Japamala have been u... | https://en.wikipedia.org/wiki/Pace_count_beads |
In topology , a branch of mathematics, Pachner moves , named after Udo Pachner, are ways of replacing a triangulation of a piecewise linear manifold by a different triangulation of a homeomorphic manifold. Pachner moves are also called bistellar flips . Any two triangulations of a piecewise linear manifold are related ... | https://en.wikipedia.org/wiki/Pachner_moves |
The pachysolen tannophilus nuclear code (translation table 26) is a genetic code found in the ascomycete fungus Pachysolen tannophilus . [ 1 ]
Bases: adenine (A), cytosine (C), guanine (G) and thymine (T) or uracil (U).
Amino acids: Alanine (Ala, A), Arginine (Arg, R), Asparagine (Asn, N), Aspartic acid (Asp, D), Cys... | https://en.wikipedia.org/wiki/Pachysolen_tannophilus_nuclear_code |
The pachytene stage ( /ˈpækɪtiːn/ PAK-i-teen ; from Greek words meaning "thick threads". [ 1 ] : 27 ), also known as pachynema , is the third stage of prophase I during meiosis, the specialized cell division that reduces chromosome number by half to produce haploid gametes . It follows the zygotene stage and is followe... | https://en.wikipedia.org/wiki/Pachytene |
The Pacific Ocean Shelf Tracking Project ( POST ) is a field project of the Census of Marine Life that researches the behavior of marine animals through the use of ocean telemetry and data management systems. [ 1 ] This system of telemetry consists of highly efficient lines of acoustic receivers that create sections of... | https://en.wikipedia.org/wiki/Pacific_Ocean_Shelf_Tracking_Project |
Pacific Research Laboratories, Inc. (PRL) is a design, research and development (R&D) and prototype manufacturing company. It is the leading producer of Sawbones, designed to simulate bone architecture and a bone's physical properties. [ 1 ] It was founded in 1978. [ 2 ] The company had 135 employees as of April 2016... | https://en.wikipedia.org/wiki/Pacific_Research_Laboratories |
The Pacific Symposium on Biocomputing ( PSB ) is an annual multidisciplinary scientific meeting co-founded in 1996 by Dr. Teri Klein , Dr. Lawrence Hunter and Sharon Surles. [ 2 ] The conference is to presentation and discuss research in the theory and application of computational methods for biology. Papers and presen... | https://en.wikipedia.org/wiki/Pacific_Symposium_on_Biocomputing |
The Pacific Tsunami Warning Center ( PTWC ), located on Ford Island , Hawaii , is one of two tsunami warning centers in the United States, covering Hawaii, Guam , American Samoa and the Northern Mariana Islands in the Pacific, as well as Puerto Rico , the U.S. Virgin Islands and the British Virgin Islands in the Caribb... | https://en.wikipedia.org/wiki/Pacific_Tsunami_Warning_Center |
Pack200 , specified in JSR 200 [ 1 ] (J2SE 1.5), deprecated in JEP 336 [ 2 ] (Java SE 11) and removed in JEP 367 (Java SE 14), [ 3 ] is a compacting archive format developed by Sun , capable of reducing JAR file sizes by up to a factor of 9, [ 4 ] with a factor of 3 to 4 seen in practice. [ 5 ] [ 6 ] Pack200 is optimiz... | https://en.wikipedia.org/wiki/Pack200 |
The package-merge algorithm is an O (nL) -time algorithm for finding an optimal length-limited Huffman code for a given distribution on a given alphabet of size n , where no code word is longer than L . It is a greedy algorithm , and a generalization of Huffman's original algorithm . Package-merge works by reducing t... | https://en.wikipedia.org/wiki/Package-merge_algorithm |
Package testing or packaging testing involves the measurement of a characteristic or property involved with packaging . This includes packaging materials, packaging components, [ 1 ] primary packages, shipping containers , and unit loads , as well as the associated processes.
Testing measures the effects and interact... | https://en.wikipedia.org/wiki/Package_testing |
The Association for Packaging and Processing Technologies (formerly Packaging Machinery Manufacturers Institute) is a trade association representing more than 900 North American manufacturers and suppliers of equipment, components and materials as well as providers of related equipment and services to the packaging and... | https://en.wikipedia.org/wiki/Packaging_Machinery_Manufacturers_Institute |
Packaging Machinery Technology [ 1 ] ( ISSN -1556-1658) was a trade publication and web site owned by PMMI for packaging and packaging machinery manufacturers and packaging engineers in the United States and Canada.
Circulation was about 35,000 copies per issue. The editorial director was Sean Riley, with the editoria... | https://en.wikipedia.org/wiki/Packaging_Machinery_Technology |
Packaging engineering , also package engineering , packaging technology and packaging science , is a broad topic ranging from design conceptualization to product placement. All steps along the manufacturing process, and more, must be taken into account in the design of the package for any given product. Package engin... | https://en.wikipedia.org/wiki/Packaging_engineering |
A packaging gas is used to pack sensitive materials such as food into a modified atmosphere environment. The gas used is usually inert , or of a nature that protects the integrity of the packaged goods, inhibiting unwanted chemical reactions such as food spoilage or oxidation . Some may also serve as a propellant for a... | https://en.wikipedia.org/wiki/Packaging_gas |
Packaging machinery is used throughout all packaging operations, involving primary packages to distribution packs. This includes many packaging processes: fabrication, cleaning, filling, sealing, combining, labeling, overwrapping, palletizing .
Some packaging operations cannot be accomplished without packaging equipme... | https://en.wikipedia.org/wiki/Packaging_machinery |
In chemical processing , a packed bed is a hollow tube , pipe, or other vessel that is filled with a packing material. The packed bed can be randomly filled with small objects like Raschig rings or else it can be a specifically designed structured packing . Packed beds may also contain catalyst particles or adsorbent... | https://en.wikipedia.org/wiki/Packed_bed |
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