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The A20 , or address line 20 , is one of the electrical lines that make up the system bus of an x86 -based computer system. The A20 line in particular is used to transmit the 21st bit on the address bus .
A microprocessor typically has a number of address lines equal to the base-two logarithm of the number of words in... | https://en.wikipedia.org/wiki/Packed_file_is_corrupt |
PacketVideo Corporation or PV was a San Diego–based company that produced software for wireless multimedia , including the display of video on mobile handsets. The PacketVideo name wasn't actively used after being acquired by Lynx Technology. [ 1 ] [ 2 ]
PV was founded in San Diego , California on 10 August 1998 by Ja... | https://en.wikipedia.org/wiki/PacketVideo |
Packet Forwarding Control Protocol ( PFCP ) is a 3GPP protocol used on the Sx/N4 interface between the control plane and the user plane function, specified in TS 29.244. [ 1 ] It is one of the main protocols introduced in the 5G Next Generation Mobile Core Network (aka 5GC [ 2 ] ), but also used in the 4G/LTE EPC to im... | https://en.wikipedia.org/wiki/Packet_Forwarding_Control_Protocol_(PFCP) |
A packet analyzer (also packet sniffer or network analyzer ) [ 1 ] [ 2 ] [ 3 ] [ 4 ] [ 5 ] [ 6 ] [ 7 ] [ 8 ] is a computer program or computer hardware such as a packet capture appliance that can analyze and log traffic that passes over a computer network or part of a network. [ 9 ] Packet capture is the process of int... | https://en.wikipedia.org/wiki/Packet_analyzer |
The packet erasure channel is a communication channel model where sequential packets are either received or lost (at a known location). This channel model is closely related to the binary erasure channel .
An erasure code can be used for forward error correction on such a channel.
This article related to telecommuni... | https://en.wikipedia.org/wiki/Packet_erasure_channel |
Packeteer, Inc. , founded in 1996 by Robert Packer, Brett Galloway and Bob Luxenberg was an I.T. company based in Cupertino, California that was listed on the NASDAQ . Networking appliances focus on Application Traffic Management and optimization for wide area networks. [ 1 ] They held at least 40 patents for various n... | https://en.wikipedia.org/wiki/Packeteer |
Paclitaxel total synthesis in organic chemistry is a major ongoing research effort in the total synthesis of paclitaxel (Taxol). [ 1 ] This diterpenoid is an important drug in the treatment of cancer but, also expensive because the compound is harvested from a scarce resource, namely the Pacific yew ( Taxus brevifolia ... | https://en.wikipedia.org/wiki/Paclitaxel_total_synthesis |
A pad abort test is a kind of test of a launch escape system which conducted by setting the system along with the spacecraft still on the ground and let the system activate to carry the spacecraft flying away, then separate in the air and make the spacecraft land safely. The purpose of the test is to determine how well... | https://en.wikipedia.org/wiki/Pad_abort_test |
The Paddle Steamer Preservation Society (PSPS) is a United Kingdom-based registered charity [ 1 ] [ 2 ] and owner of two working paddle steamers ; PS Kingswear Castle and PS Waverley .
In September 1959 a letter by Dr Alan Robinson appeared in The Daily Telegraph newspaper remarking on the rapid decline of the paddle ... | https://en.wikipedia.org/wiki/Paddle_Steamer_Preservation_Society |
A compactor is a machine or mechanism used to reduce the size of material such as waste material or bio mass through compaction . A trash compactor is used in business and public places like hospitals (and in the United States also in homes) to reduce the volume of trash they produce. A baler-wrapper compactor is used ... | https://en.wikipedia.org/wiki/Paddy's_motorbike |
In chemical graph theory , the Padmakar–Ivan (PI) index is a topological index of a molecule , used in biochemistry . The Padmakar–Ivan index is a generalization introduced by Padmakar V. Khadikar and Iván Gutman [ 1 ] of the concept of the Wiener index , introduced by Harry Wiener . The Padmakar–Ivan index of a graph ... | https://en.wikipedia.org/wiki/Padmakar–Ivan_index |
In mathematics , Padovan polynomials are a generalization of Padovan sequence numbers. These polynomials are defined by: [ 1 ]
The first few Padovan polynomials are:
The Padovan numbers are recovered by evaluating the polynomials P n −3 ( x ) at x = 1.
Evaluating P n −3 ( x ) at x = 2 gives the n th Fibonacci numbe... | https://en.wikipedia.org/wiki/Padovan_polynomials |
Paedophagy (literally meaning the "consumption of children") in its general form is the feeding behaviour of fish or other animals whose diet is partially, or primarily the eggs or larvae of other animals. However, P. H. Greenwood, who was the first to describe paedophagia, defines it to be a feeding behaviour evolved ... | https://en.wikipedia.org/wiki/Paedophagy |
Paenibacterin is a mixture of antimicrobial lipopeptides isolated from Paenibacillus thiaminolyticus . [ 1 ] It contains three isomeric compounds which differ by the fatty acid side chain. [ 2 ]
This biochemistry article is a stub . You can help Wikipedia by expanding it .
This article about an organic compound is a ... | https://en.wikipedia.org/wiki/Paenibacterin |
Paging Network, Inc. , also known as PageNet , was founded in 1981 by entrepreneur George Perrin and ceased in 1999.
The company grew to become the largest wireless messaging company in the world, with more than 10 million pagers in service, and $1 billion in revenues, before the paging industry's rapid decline in the... | https://en.wikipedia.org/wiki/PageNet |
The page attribute table ( PAT ) is a processor supplementary capability extension to the page table format of certain x86 and x86-64 microprocessors. Like memory type range registers (MTRRs), they allow for fine-grained control over how areas of memory are cached , and are a companion feature to the MTRRs. [ 1 ]
Unl... | https://en.wikipedia.org/wiki/Page_attribute_table |
A pager , also known as a beeper or bleeper , [ 1 ] is a wireless telecommunications device that receives and displays alphanumeric or voice messages. One-way pagers can only receive messages, while response pagers and two-way pagers can also acknowledge, reply to, and originate messages using an internal transmitter. ... | https://en.wikipedia.org/wiki/Pager |
Pagophagia (from Greek: pagos , frost/ice, + phagō , to eat [ 1 ] ) is the compulsive consumption of ice or iced drinks. [ 2 ] It is a form of the disorder known as pica , which in Latin refers to a magpie that eats everything indiscriminately. [ 3 ] Pica's medical definition refers to the persistent consumption of non... | https://en.wikipedia.org/wiki/Pagophagia |
Pain asymbolia , also called pain dissociation , is a condition in which pain is experienced without unpleasantness . This usually results from injury to the brain, lobotomy , cingulotomy or morphine analgesia . Preexisting lesions of the insula may abolish the aversive quality of painful stimuli while preserving the l... | https://en.wikipedia.org/wiki/Pain_asymbolia |
In physics , the Painlevé conjecture is a theorem about singularities among the solutions to the n -body problem : there are noncollision singularities for n ≥ 4. [ 1 ] [ 2 ]
The theorem was proven for n ≥ 5 in 1988 by Jeff Xia [ 3 ] [ 4 ] and for n = 4 in 2014 by Jinxin Xue. [ 5 ] [ 6 ]
Solutions ( q , p ) {\display... | https://en.wikipedia.org/wiki/Painlevé_conjecture |
In the paint and coating industries, paint adhesion testing is often used to determine if the paint or coating will adhere properly to the substrates to which they are applied. Several tests measure the resistance of paints and coatings from substrates: cross-cut test, scrape adhesion, pull-off test , and others. [ 1 ]... | https://en.wikipedia.org/wiki/Paint_adhesion_testing |
Paint by number or painting by numbers kits are self-contained painting sets, designed to facilitate painting a pre-designed image. They generally include brushes , tubs of paint with numbered labels, and a canvas printed with borders and numbers. The user selects the color corresponding to one of the numbers then uses... | https://en.wikipedia.org/wiki/Paint_by_number |
Industrial paint robots have been used for decades in automotive paint applications.
Early paint robots were hydraulic versions, which are still in use today but are of inferior quality and safety to the latest electronic offerings. [ 1 ] [ 2 ] [ 3 ] The newest robots are accurate and deliver results with uniform film... | https://en.wikipedia.org/wiki/Paint_robot |
A paint sealant is a sealant that protects cars from ultraviolet rays and acid rain . Paint sealants protect cars' finishes, and can make cars shiny. There are synthetic sealants and carnauba waxes.
Salt may be a factor that many protective sealants do not defend against, and thus salt water may break down protective ... | https://en.wikipedia.org/wiki/Paint_sealant |
A Gabriel's horn (also called Torricelli's trumpet ) is a type of geometric figure that has infinite surface area but finite volume . The name refers to the Christian tradition where the archangel Gabriel blows the horn to announce Judgment Day . The properties of this figure were first studied by Italian physicist and... | https://en.wikipedia.org/wiki/Painter's_paradox |
Painting with Fire ( PWF ) is the name given to an immersion process for creating torch fired enamel jewelry . This process is the focal point of torch fired enamel jewelry workshops taught by Barbara A. Lewis , written about in her book, and discussed in Belle Armoire Jewelry , [ 1 ] [ 2 ] [ 3 ] Handcrafted Jewelry , ... | https://en.wikipedia.org/wiki/Painting_with_Fire |
The pair distribution function describes the distribution of distances between pairs of particles contained within a given volume. [ 1 ] Mathematically, if a and b are two particles, the pair distribution function of b with respect to a , denoted by g a b ( r → ) {\displaystyle g_{ab}({\vec {r}})} is the probability of... | https://en.wikipedia.org/wiki/Pair_distribution_function |
In mathematics , a pair of pants is a surface which is homeomorphic to the three-holed sphere . The name comes from considering one of the removed disks as the waist and the two others as the cuffs of a pair of pants .
Pairs of pants are used as building blocks for compact surfaces in various theories. Two important a... | https://en.wikipedia.org/wiki/Pair_of_pants_(mathematics) |
In physics , a pair potential is a function that describes the potential energy of two interacting objects solely as a function of the distance between them. [ 1 ]
Some interactions, like Coulomb's law in electrodynamics or Newton's law of universal gravitation in mechanics naturally have this form for simple spherica... | https://en.wikipedia.org/wiki/Pair_potential |
Pair production is the creation of a subatomic particle and its antiparticle from a neutral boson . Examples include creating an electron and a positron , a muon and an antimuon , or a proton and an antiproton . Pair production often refers specifically to a photon creating an electron–positron pair near a nucleus . As... | https://en.wikipedia.org/wiki/Pair_production |
Paired-end tags (PET) (sometimes "Paired-End diTags", or simply "ditags") are the short sequences at the 5’ and 3' ends of a DNA fragment which are unique enough that they (theoretically) exist together only once in a genome , therefore making the sequence of the DNA in between them available upon search (if full-genom... | https://en.wikipedia.org/wiki/Paired-end_tag |
Paired receptors are pairs or clusters of receptor proteins that bind to extracellular ligands but have opposing activating and inhibitory signaling effects. [ 2 ] [ 3 ] [ 4 ] Traditionally, paired receptors are defined as homologous pairs with similar extracellular domains and different cytoplasmic regions, whose gene... | https://en.wikipedia.org/wiki/Paired_receptors |
In mathematics , a pairing is an R - bilinear map from the Cartesian product of two R - modules , where the underlying ring R is commutative .
Let R be a commutative ring with unit , and let M , N and L be R -modules .
A pairing is any R -bilinear map e : M × N → L {\displaystyle e:M\times N\to L} . That is, it satis... | https://en.wikipedia.org/wiki/Pairing |
Pairing , sometimes known as bonding , is a process used in computer networking that helps set up an initial linkage between computing devices to allow communications between them. The most common example is used in Bluetooth , [ 1 ] where the pairing process is used to link devices like a Bluetooth headset with a mobi... | https://en.wikipedia.org/wiki/Pairing_(computing) |
In mathematics and particularly in topology , a pairwise Stone space is a bitopological space ( X , τ 1 , τ 2 ) {\displaystyle \scriptstyle (X,\tau _{1},\tau _{2})} that is pairwise compact , pairwise Hausdorff , and pairwise zero-dimensional .
Pairwise Stone spaces are a bitopological version of Stone spaces .
Pairw... | https://en.wikipedia.org/wiki/Pairwise_Stone_space |
In numerical analysis , pairwise summation , also called cascade summation , is a technique to sum a sequence of finite- precision floating-point numbers that substantially reduces the accumulated round-off error compared to naively accumulating the sum in sequence. [ 1 ] Although there are other techniques such as Kah... | https://en.wikipedia.org/wiki/Pairwise_summation |
A Pake Doublet (or "Pake Pattern") is a characteristic line shape seen in solid-state nuclear magnetic resonance and electron paramagnetic resonance spectroscopy. It was first described by George Pake .
It arises from dipolar coupling between isolated two spin-1/2 nuclei, or from transitions in quadrupolar nuclei such... | https://en.wikipedia.org/wiki/Pake_doublet |
Pakistan Atomic Energy Commission ( PAEC ) ( Urdu : ماموریہ جوہری توانائی پاکستان , romanized : māmūrīa jauhrī tawānā'ī pākistān ) is a federally funded independent governmental agency, concerned with research and development of nuclear power , promotion of nuclear science , energy conservation and the peaceful use of ... | https://en.wikipedia.org/wiki/Pakistan_Atomic_Energy_Commission |
The Pakistan Institute of Nuclear Science & Technology ( PINSTECH ) is a federally funded research and development laboratory in Nilore , Islamabad , Pakistan . [ 1 ] [ 2 ]
The site was designed by the American architect Edward Durell Stone and its construction was completed in 1965. It has been described as "[maybe] ... | https://en.wikipedia.org/wiki/Pakistan_Institute_of_Nuclear_Science_&_Technology |
While STEM ( Science , technology , engineering and mathematics ) fields all over the world are dominated by men, the number of Pakistani women in 'STEM' is low due to one of the highest gender gaps in STEM fields. [ 1 ] [ 2 ] However, over the time, some Pakistani women have emerged as scientists in fields like Physic... | https://en.wikipedia.org/wiki/Pakistani_women_in_STEM |
Pal-Kal ( Hebrew : פל קל ) was a construction method for concrete ceilings, invented by engineer Eli Ron in the late 1970s (Israel Patent No. 104,101 [ 1 ] ).
The Pal-Kal method offered an easier, faster, and cheaper solution for casting ceilings compared to traditional reinforced concrete slabs. However, certain appl... | https://en.wikipedia.org/wiki/Pal-Kal |
Palaeoimmunology or paleo-immunology (" paleo "=ancient, " immuno "=referring to immunology ) is the analysis using histochemical techniques to look at the matrix proteins in historic and pre-historic materials. [ 1 ] Modern immunological assays are used to detect the presence of specific antigens in the sample materia... | https://en.wikipedia.org/wiki/Palaeoimmunology |
The Palamuru-Rangareddy Lift Irrigation Project (PRLIP) is an irrigation project in the state of Telangana , India . [ 1 ] The project aims to make 12.3 lakh acres of parched lands in erstwhile combined Mahabubnagar district into fertile lands. [ 2 ] The project is built on the Krishna river at a cost of ₹ 35,000 crore... | https://en.wikipedia.org/wiki/Palamuru-Rangareddy_Lift_Irrigation_Scheme |
In general relativity and tensor calculus , the Palatini identity is
where δ Γ ν σ ρ {\displaystyle \delta \Gamma _{\nu \sigma }^{\rho }} denotes the variation of Christoffel symbols and ∇ ρ {\displaystyle \nabla _{\rho }} indicates covariant differentiation . [ 1 ]
The "same" identity holds for the Lie derivative L ... | https://en.wikipedia.org/wiki/Palatini_identity |
Palbociclib , sold under the brand name Ibrance among others, is a medication developed by Pfizer for the treatment of HR -positive and HER2 -negative breast cancer . It is a selective inhibitor of the cyclin-dependent kinases CDK4 and CDK6 . [ 5 ] [ 6 ] Palbociclib was the first CDK4/6 inhibitor to be approved as a ca... | https://en.wikipedia.org/wiki/Palbociclib |
The Palearctic or Palaearctic is a biogeographic realm of the Earth, the largest of eight. Confined almost entirely to the Eastern Hemisphere , it stretches across Europe and Asia , north of the foothills of the Himalayas , and North Africa .
The realm consists of several bioregions : the Mediterranean Basin ; North A... | https://en.wikipedia.org/wiki/Palearctic_realm |
Paleo-inspiration is a paradigm shift that leads scientists and designers to draw inspiration from ancient materials (from art, archaeology , natural history or paleo-environments) to develop new systems or processes , particularly with a view to sustainability .
Paleo-inspiration has already contributed to numerous a... | https://en.wikipedia.org/wiki/Paleo-inspiration |
Paleobiology (or palaeobiology ) is an interdisciplinary field that combines the methods and findings found in both the earth sciences and the life sciences . An investigator in this field is known as a paleobiologist .
Paleobiology is closely related to the field of paleontology , although the latter focuses primaril... | https://en.wikipedia.org/wiki/Paleobiology |
Paleobiology is a scientific journal promoting the integration of biology and conventional paleontology , with emphasis placed on biological or paleobiological processes and patterns. It attracts papers of interest to more than one discipline, and occasionally publishes research on recent organisms when this is of inte... | https://en.wikipedia.org/wiki/Paleobiology_(journal) |
Paleobotany or palaeobotany , also known as paleophytology , is the branch of botany dealing with the recovery and identification of plant fossils from geological contexts, and their use for the biological reconstruction of past environments ( paleogeography ), and the evolutionary history of plants , with a bearing up... | https://en.wikipedia.org/wiki/Paleobotany |
Paleoethnobotany (also spelled palaeoethnobotany), or archaeobotany , is the study of past human-plant interactions through the recovery and analysis of ancient plant remains. Both terms are synonymous, though paleoethnobotany (from the Greek words palaios [παλαιός] meaning ancient, ethnos [έθνος] meaning race or ethni... | https://en.wikipedia.org/wiki/Paleoethnobotany |
Paleohydrology , or palaeohydrology , is the scientific study of the movement, distribution, and quality of water on Earth during previous periods of its history. The discipline uses indirect evidence to infer changes in deposition rates, the existence of flooding, changes in sea levels, changes in groundwater levels a... | https://en.wikipedia.org/wiki/Paleohydrology |
Paleomycology is the study of fossil fungi . [ 1 ] Paleomycology is considered a subdiscipline of paleobotany , centered on mushrooms, fungal spores, and hyphae preserved in sediment layers and rock. [ 2 ] Fungi have been found in the palaeoecological record as far back as the Paleozoic era, with evidence of influencin... | https://en.wikipedia.org/wiki/Paleomycology |
Paleophycology (also once known as paleoalgology ) is the subdiscipline of paleobotany that deals with the study and identification of fossil algae and their evolutionary relationships and ecology. [ 1 ] [ 2 ]
The field is very important in the science of paleolimnology as the algae leave many indicators of fossil eco... | https://en.wikipedia.org/wiki/Paleophycology |
Paleosalinity (or palaeosalinity) is the salinity of the global ocean or of an ocean basin at a point in geological history.
From Bjerrum plots , it is found that a decrease in the salinity of an aqueous fluid will act to increase the value of the carbon dioxide-carbonate system equilibrium constants, (pK*). This mean... | https://en.wikipedia.org/wiki/Paleosalinity |
Paleostress is a term used in geology (specifically in the fields of structural geology and tectonics ) to indicate mechanical stress that has affected rock formations in the geological past.
In practice, a paleostress tensor may be quantified based on the measurement of certain geological structures (e.g. faults ), w... | https://en.wikipedia.org/wiki/Paleostress |
Paleostress inversion refers to the determination of paleostress history from evidence found in rocks, based on the principle that past tectonic stress should have left traces in the rocks. [ 1 ] Such relationships have been discovered from field studies for years: qualitative and quantitative analyses of deformation s... | https://en.wikipedia.org/wiki/Paleostress_inversion |
Palaeozoology or paleozoology ( Greek : παλαιόν , palaeon "old" and ζῷον , zoon "animal") is the branch of paleontology and evolutionary biology that specifically deal with the study of prehistoric organisms from the kingdom Animalia and the recovery and identification of their fossil remains from geological (or even a... | https://en.wikipedia.org/wiki/Paleozoology |
In mathematics , Paley graphs are undirected graphs constructed from the members of a suitable finite field by connecting pairs of elements that differ by a quadratic residue . The Paley graphs form an infinite family of conference graphs , which yield an infinite family of symmetric conference matrices . Paley graphs ... | https://en.wikipedia.org/wiki/Paley_graph |
Paligenosis ( /pɑːliːdʒɛnoʊsɪs/ ) is a cellular program in which mature, quiescent, cells revert to a stem cell-like progenitor state in response to injury as a means to restore tissue damage. In 2018, paligenosis was first formally named and described as a three-stage series of defined molecular and cellular events th... | https://en.wikipedia.org/wiki/Paligenosis |
Palinstrophy is the curl of the vorticity . It is defined as 1 2 ( ∇ × ω ) , {\displaystyle {\frac {1}{2}}\left(\nabla \times \omega \right),} where ω {\displaystyle \omega } is the vorticity.
Palinstrophy is mainly used in turbulence study, where there is a need to quantify how vorticity is transferred from one direc... | https://en.wikipedia.org/wiki/Palinstrophy |
The Palisa-Wolf-Star Map or Palisa-Wolf-Star Atlas ( German : Palisa-Wolf-Sternatlas ) is a map series produced between 1900 and 1916 as well as published between 1900 and 1931, which shows the entire starry sky visible in Europe in 210 large-scale sheets.
It was published at the suggestion of the Viennese astronomer ... | https://en.wikipedia.org/wiki/Palisa-Wolf-Star_Map |
In histopathology , a palisade is a single layer of relatively long cells, arranged loosely perpendicular to a surface and parallel to each other. [ 1 ] A rosette is a palisade in a halo or spoke-and-wheel arrangement, surrounding a central core or hub. [ 2 ] A pseudorosette is a perivascular radial arrangement of neop... | https://en.wikipedia.org/wiki/Palisade_(pathology) |
Palivizumab , sold under the brand name Synagis , is a monoclonal antibody produced by recombinant DNA technology used to prevent severe disease caused by respiratory syncytial virus (RSV) infections. [ 2 ] [ 4 ] It is recommended for infants at high-risk for RSV due to conditions such as prematurity or other medical p... | https://en.wikipedia.org/wiki/Palivizumab |
Palladacycle , as a class of metallacycles , refers to complexes containing at least one carbon- palladium bond. Palladacycles are invoked as intermediates in catalytic or palladium mediated reactions. They have been investigated as pre-catalysts for homogeneous catalysis and synthesis .
In the 1960s, Arthur C. Cope a... | https://en.wikipedia.org/wiki/Palladacycle |
Palladium(II) bis(acetylacetonate) is a compound with formula Pd(C 5 H 7 O 2 ) 2 . This yellow solid is the most common palladium complex of acetylacetonate . This compound is commercially available and used as a catalyst precursor in organic synthesis . The molecule is relatively planar with idealized D 2h symmetry . ... | https://en.wikipedia.org/wiki/Palladium(II)_bis(acetylacetonate) |
Palladium(II) nitrate is the inorganic compound with the formula Pd(NO 3 ) 2 .(H 2 O) x where x = 0 or 2. The anhydrous and dihydrate are deliquescent solids. According to X-ray crystallography , both compounds feature square planar Pd(II) with unidentate nitrate ligands. The anhydrous compound, which is a coordinat... | https://en.wikipedia.org/wiki/Palladium(II)_nitrate |
Palladium hexafluoride is an inorganic chemical compound of palladium metal and fluorine with the chemical formula PdF 6 . [ 1 ] It is reported to be a still hypothetical compound . [ 2 ] This is one of many palladium fluorides .
Fluorination of palladium powder with atomic fluoride at 900–1700 Pa. [ 3 ]
Palladium he... | https://en.wikipedia.org/wiki/Palladium_hexafluoride |
In organometallic chemistry , palladium-NHC complexes are a family of organopalladium compounds in which palladium forms a coordination complex with N -heterocyclic carbenes (NHCs). They have been investigated for applications in homogeneous catalysis , [ 4 ] particularly cross-coupling reactions . [ 1 ] [ 4 ] [ 5 ]
T... | https://en.wikipedia.org/wiki/Palladium–NHC_complex |
In the Andean mining tradition pallaqueo , palleo [ 1 ] or pirquineo [ 2 ] is the hand selection of rock fragments with ore for further processing . [ 3 ] [ 4 ] Usually, pallaqueo is done in piles of discarded material with little planning, randomly and without authorization. [ 5 ] [ 3 ] However, historically in places... | https://en.wikipedia.org/wiki/Pallaqueo |
A pallet inverter or pile turner is a machine that is used to turn over full pallet loads of packages or products. [ 1 ] [ 2 ] [ 3 ] The term pallet inverter is also used to cover machines that turn the palletised load through 90 degrees only.
The reasons for needing to turn over a pallet are varied. The primary reaso... | https://en.wikipedia.org/wiki/Pallet_inverter |
A palletizer or palletiser is a machine which provides automatic means for stacking cases of goods or products onto a pallet .
Manually placing boxes on pallets can be time consuming and expensive; it can also put unusual stress on workers. [ 1 ] The first mechanized palletizer was designed, built, and installed in 19... | https://en.wikipedia.org/wiki/Palletizer |
The Palmer-Bowlus flume , is a class of flumes commonly used to measure the flow of wastewater in sewer pipes and conduits. The Palmer-Bowlus flume has a u-shaped cross-section and was designed to be inserted into, or in line with, pipes and u-channels found in sanitary sewer applications. [ 1 ]
As a long-throated flu... | https://en.wikipedia.org/wiki/Palmer-Bowlus_Flume |
The Palmer drought index , sometimes called the Palmer drought severity index ( PDSI ), or the Palmer Z index , is a regional drought index commonly used for monitoring drought events and studying areal extent and severity of drought episodes. [ 1 ] The index uses precipitation and temperature data to study moisture su... | https://en.wikipedia.org/wiki/Palmer_drought_index |
Palmetto Pass (often referenced as PAL PASS ) is an electronic toll-collection system used on all toll roads in South Carolina. It was originally administered by the South Carolina Department of Transportation and is now operated by the Connector 2000 Association, which operates the Southern Connector.
Palmetto Pass ... | https://en.wikipedia.org/wiki/Palmetto_Pass |
Palmitate mediated localization is a biological process that trafficks a palmitoylated protein to ordered lipid domains. [ 1 ]
One function is thought to cluster proteins to increase the efficiency of protein-protein interactions and facilitate biological processes. In the opposite scenario palmitate mediated localiza... | https://en.wikipedia.org/wiki/Palmitate_mediated_localization |
Palmitoylcarnitine is an ester derivative of carnitine involved in the metabolism of fatty acids . During the tricarboxylic acid cycle (TCA), fatty acids undergo a process known as β-oxidation to produce energy in the form of ATP. β-oxidation occurs primarily within mitochondria, however the mitochondrial membrane prev... | https://en.wikipedia.org/wiki/Palmitoylcarnitine |
Palmitoylethanolamide ( PEA ) is an endogenous fatty acid amide , and lipid modulator. [ 2 ]
A main target of PEA is proposed to be the peroxisome proliferator-activated receptor alpha (PPAR-α). [ 3 ] [ 4 ] PEA also has affinity to cannabinoid-like G-coupled receptors GPR55 and GPR119 . [ 5 ] PEA cannot strictly be co... | https://en.wikipedia.org/wiki/Palmitoylethanolamide |
The Palmqvist method , or the Palmqvist toughness test , (after Sven Robert Palmqvist ) is a common method to determine the fracture toughness for cemented carbides . In this case, the material's fracture toughness is given by the critical stress intensity factor K Ic . [ 2 ]
The Palmqvist-method uses the lengths of t... | https://en.wikipedia.org/wiki/Palmqvist_method |
A Palmtop PC is an obsolete, approximately pocket calculator -sized, battery-powered computer in a horizontal clamshell design with integrated keyboard and display. It could be used like a modern subnotebook , but was light enough to be comfortably used handheld as well. Most Palmtop PCs were small enough to be stored ... | https://en.wikipedia.org/wiki/Palmtop_PC |
In probability theory , the Palm–Khintchine theorem , the work of Conny Palm and Aleksandr Khinchin , expresses that a large number of renewal processes , not necessarily Poissonian , when combined ("superimposed") will have Poissonian properties. [ 1 ]
It is used to generalise the behaviour of users or clients in que... | https://en.wikipedia.org/wiki/Palm–Khintchine_theorem |
The Palos Verdes Peninsula , a coastal region of the Los Angeles metropolitan area , has a long history of landslides and land movements. [ 1 ] [ 2 ] [ 3 ] [ 4 ] [ 5 ] [ 6 ] [ 7 ] The Palos Verdes Peninsula is home to the cities of Palos Verdes Estates, [ 8 ] Rancho Palos Verdes, [ 9 ] Rolling Hills [ 10 ] and Rolling ... | https://en.wikipedia.org/wiki/Palos_Verdes_Peninsula_landslides |
Paludiculture is wet agriculture and forestry on peatlands . [ 1 ] Paludiculture combines the reduction of greenhouse gas emissions from drained peatlands through rewetting with continued land use and biomass production under wet conditions. [ 2 ] “Paludi” comes from the Latin “ palu s ” meaning “swamp, morass” and "pa... | https://en.wikipedia.org/wiki/Paludiculture |
Palynology is the study of microorganisms and microscopic fragments of mega-organisms that are composed of acid-resistant organic material and occur in sediments , sedimentary rocks , and even some metasedimentary rocks. Palynomorphs are the microscopic, acid-resistant organic remains and debris produced by a wide vari... | https://en.wikipedia.org/wiki/Palynology |
Palytoxin , PTX [ 3 ] or PLTX [ 4 ] is an intense vasoconstrictor , [ 1 ] and is considered to be one of the most poisonous non- protein substances known, second only to maitotoxin in terms of toxicity in mice. [ 5 ]
Palytoxin is a polyhydroxylated and partially unsaturated compound (8 double bonds) with a long carbon... | https://en.wikipedia.org/wiki/Palytoxin |
The Pan-African Payment and Settlement System (PAPSS) is a Pan-African real-time gross settlement (RTGS) infrastructure for cross-border payments in distinct local currencies. It was publicly launched on January 13, 2022 [ 1 ] by the African Union (AU) and the African Export-Import Bank (Afreximbank) to compliment trad... | https://en.wikipedia.org/wiki/Pan-African_Payment_and_Settlement_System |
Pan-Andromeda Archaeological Survey (PAndAS) is a large-scale astronomical survey using the Canada-France-Hawaii Telescope .
The survey is exploring the structure and content of the Andromeda Galaxy (M31) and its neighbour, the Triangulum Galaxy (M33). Clues to the formation of these galaxies may lie within the vast s... | https://en.wikipedia.org/wiki/Pan-Andromeda_Archaeological_Survey |
Pan-T antigens are antigens found on all T cells .
They include CD2 , CD3 , CD5 and CD7 . [ 1 ]
This biochemistry article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/Pan-T_antigens |
Pan-assay interference compounds ( PAINS ) are chemical compounds that often give false positive results in high-throughput screens . [ 1 ] PAINS tend to react nonspecifically with numerous biological targets rather than specifically affecting one desired target. [ 2 ] A number of disruptive functional groups are share... | https://en.wikipedia.org/wiki/Pan-assay_interference_compounds |
In the fields of molecular biology and genetics , a pan-genome ( pangenome or supragenome ) is the entire set of genes from all strains within a clade . More generally, it is the union of all the genomes of a clade. [ 2 ] [ 3 ] [ 4 ] [ 5 ] The pan-genome can be broken down into a "core pangenome" that contains genes pr... | https://en.wikipedia.org/wiki/Pan-genome |
The PanCam (Panoramic Camera) assembly is a set of two wide angle cameras for multi-spectral stereoscopic panoramic imaging, and a high resolution camera for colour imaging that has been designed to search for textural information or shapes that can be related to the presence of microorganisms on Mars . This camera ass... | https://en.wikipedia.org/wiki/PanCam |
The Pan Africa Chemistry Network (PACN) connects chemists across Africa . [ 1 ] It was launched in London on 21 November 2007 and in Nairobi on 27 May 2008 by the Royal Society of Chemistry . [ 2 ] The PACN works to connect chemists across Africa and has five centres of excellence in analytical chemistry in Kenya , Eth... | https://en.wikipedia.org/wiki/Pan_Africa_Chemistry_Network |
The Pan American Association of Anatomy ( PAA ) is a public, nonprofit, scientific organization that brings together professionals engaged in the study of Anatomy and related sciences in the American continent.
The Pan American Association of Anatomy (PAA) was created in July 1966 in Mexico City at the 1st Pan America... | https://en.wikipedia.org/wiki/Pan_American_Association_of_Anatomy |
Pan Britannica Industries Ltd ( PBI ) was a household and agrochemical formulation company incorporated in 1932 [ 1 ] and based at Britannica House, Stewardstone Road, Waltham Abbey and with a distribution presence in Wisbech in Cambridgeshire . PBI was, in common with many other UK household names, both a manufacturer... | https://en.wikipedia.org/wiki/Pan_Britannica_Industries |
The pan amalgamation process is a method to extract silver from ore, using salt and copper(II) sulfate in addition to mercury . The process was widely used from 1609 through the 19th century; it is no longer used.
The patio process had been used to extract silver from ore since its invention in 1557. One drawback of ... | https://en.wikipedia.org/wiki/Pan_amalgamation |
Pan evaporation is a measurement that combines or integrates the effects of several climate elements: temperature, humidity, rain fall, drought dispersion, solar radiation, and wind. Evaporation is greatest on hot, windy, dry, sunny days; and is greatly reduced when clouds block the sun and when air is cool, calm, and ... | https://en.wikipedia.org/wiki/Pan_evaporation |
A pan trap is a type of insect trap used to sample the abundance and diversity of insects, primarily used to capture small Hymenoptera . [ 1 ] Pan traps are typically constructed with a bowl with shallow sides filled with water and soap or a preservative and killing agent. Yellow is the most commonly used color, [ 2 ] ... | https://en.wikipedia.org/wiki/Pan_trap |
The Panama Canal fence is a term used for a variety of barriers built by the United States in the Panama Canal Zone to control movement in the zone for a variety of enforcement purposes. [ 1 ] [ 2 ] The Canal Zone, primarily consisting of the Panama Canal , a strip of land running from the Pacific Ocean to the Caribbea... | https://en.wikipedia.org/wiki/Panama_Canal_fence |
Panbiogeography , originally proposed by the French-Italian scholar Léon Croizat (1894–1982) in 1958, [ 1 ] [ 2 ] is a cartographical approach to biogeography that plots distributions of a particular taxon or group of taxa on maps, and connects the disjunct distribution areas or collection localities together with line... | https://en.wikipedia.org/wiki/Panbiogeography |
Pancratistatin ( PST ) is a natural compound initially extracted from spider lily , [ 1 ] a Hawaiian native plant of the family Amaryllidaceae [ 2 ] (AMD).
Pancratistatin occurs naturally in Hawaiian spider lily, a flowering plant within the family Amaryllidaceae . Pancratistatin is mostly found in the bulb tissues of... | https://en.wikipedia.org/wiki/Pancratistatin |
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