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Primary is a term used in organic chemistry to classify various types of compounds (e.g. alcohols , alkyl halides, amines) or reactive intermediates (e.g. alkyl radicals, carbocations ).
Primary central atoms compared with secondary , tertiary and quaternary central atoms. | https://en.wikipedia.org/wiki/Primary_(chemistry) |
A primary alcohol is an alcohol in which the hydroxy group is bonded to a primary carbon atom. It can also be defined as a molecule containing a “–CH 2 OH” group. [ 1 ] In contrast, a secondary alcohol has a formula “–CHROH” and a tertiary alcohol has a formula “–CR 2 OH”, where “R” indicates a carbon-containing group.... | https://en.wikipedia.org/wiki/Primary_alcohol |
Primary and secondary antibodies are two groups of antibodies that are classified based on whether they bind to antigens or proteins directly or target another (primary) antibody that, in turn, is bound to an antigen or protein .
A primary antibody can be very useful for the detection of biomarkers for diseases such a... | https://en.wikipedia.org/wiki/Primary_and_secondary_antibodies |
In organic chemistry , a primary carbon is a carbon atom which is bound to only one other carbon atom. [ 1 ] It is thus at the end of a carbon chain . In case of an alkane , three hydrogen atoms are bound to a primary carbon (see propane in the figure on the right). A hydrogen atom could also be replaced by a hydroxy g... | https://en.wikipedia.org/wiki/Primary_carbon |
Primary energy ( PE ) is the energy found in nature that has not been subjected to any human engineered conversion process. It encompasses energy contained in raw fuels and other forms of energy, including waste, received as input to a system . Primary energy can be non-renewable or renewable .
Total primary energy su... | https://en.wikipedia.org/wiki/Primary_energy |
Primary growth in plants is growth that takes place from the tips of roots or shoots. It leads to lengthening of roots and stems and sets the stage for organ formation. It is distinguished from secondary growth that leads to widening. Plant growth takes place in well defined plant locations. Specifically, the cell divi... | https://en.wikipedia.org/wiki/Primary_growth |
A primary metabolite is a kind of metabolite that is directly involved in normal growth, development, and reproduction. It usually performs a physiological function in the organism (i.e. an intrinsic function). A primary metabolite is typically present in many organisms or cells. It is also referred to as a central met... | https://en.wikipedia.org/wiki/Primary_metabolite |
Primary nutritional groups are groups of organisms , divided in relation to the nutrition mode according to the sources of energy and carbon, needed for living, growth and reproduction. The sources of energy can be light or chemical compounds; the sources of carbon can be of organic or inorganic origin. [ 1 ]
The term... | https://en.wikipedia.org/wiki/Primary_nutritional_groups |
An autotroph is an organism that can convert abiotic sources of energy into energy stored in organic compounds , which can be used by other organisms . Autotrophs produce complex organic compounds (such as carbohydrates , fats , and proteins ) using carbon from simple substances such as carbon dioxide, [ 1 ] generally ... | https://en.wikipedia.org/wiki/Primary_producer |
In ecology , primary production is the synthesis of organic compounds from atmospheric or aqueous carbon dioxide . It principally occurs through the process of photosynthesis , which uses light as its source of energy, but it also occurs through chemosynthesis , which uses the oxidation or reduction of inorganic chemi... | https://en.wikipedia.org/wiki/Primary_production |
A primary standard in metrology is a standard that is sufficiently accurate such that it is not calibrated by or subordinate to other standards. Primary standards are defined via other quantities like length, mass and time . Primary standards are used to calibrate other standards referred to as working standards. [ 1... | https://en.wikipedia.org/wiki/Primary_standard |
Primary succession is the beginning step of ecological succession where species known as pioneer species colonize an uninhabited site, which usually occurs in an environment devoid of vegetation and other organisms.
In contrast, secondary succession occurs on substrates that previously supported vegetation before an e... | https://en.wikipedia.org/wiki/Primary_succession |
Primate Conservation is a journal published by the IUCN Species Survival Commission's Primate Specialist Group about the world's primates. First published as a mimeographed newsletter in 1981, the journal today publishes conservation research and papers on primate species, particularly status surveys and studies on dis... | https://en.wikipedia.org/wiki/Primate_Conservation_(journal) |
Primate cognition is the study of the intellectual and behavioral skills of non-human primates , particularly in the fields of psychology , behavioral biology , primatology , and anthropology . [ 1 ]
Primates are capable of high levels of cognition; some make tools and use them to acquire foods and for social displays... | https://en.wikipedia.org/wiki/Primate_cognition |
Prime95 , also distributed as the command-line utility mprime for FreeBSD and Linux , is a freeware application written by George Woltman . It is the official client of the Great Internet Mersenne Prime Search (GIMPS), a volunteer computing project dedicated to searching for Mersenne primes . It is also used in overclo... | https://en.wikipedia.org/wiki/Prime95 |
In mathematics , an element p of a partial order (P, ≤) is a meet prime element when p is the principal element of a principal prime ideal . Equivalently, if P is a lattice , p ≠ top , and for all a , b in P ,
This algebra -related article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/Prime_(order_theory) |
The prime symbol ′ , double prime symbol ″ , triple prime symbol ‴ , and quadruple prime symbol ⁗ are used to designate units and for other purposes in mathematics , science , linguistics and music .
Although the characters differ little in appearance from those of the apostrophe and single and double quotation marks ... | https://en.wikipedia.org/wiki/Prime_(symbol) |
In algebra , the prime avoidance lemma says that if an ideal I in a commutative ring R is contained in a union of finitely many prime ideals P i 's, then it is contained in P i for some i .
There are many variations of the lemma (cf. Hochster); for example, if the ring R contains an infinite field or a finite field of... | https://en.wikipedia.org/wiki/Prime_avoidance_lemma |
The prime constant is the real number ρ {\displaystyle \rho } whose n {\displaystyle n} th binary digit is 1 if n {\displaystyle n} is prime and 0 if n {\displaystyle n} is composite or 1. [ 1 ]
In other words, ρ {\displaystyle \rho } is the number whose binary expansion corresponds to the indicator function of the se... | https://en.wikipedia.org/wiki/Prime_constant |
Prime editing is a 'search-and-replace' genome editing technology in molecular biology by which the genome of living organisms may be modified. The technology directly writes new genetic information into a targeted DNA site. It uses a fusion protein , consisting of a catalytically impaired Cas9 endonuclease fused to an... | https://en.wikipedia.org/wiki/Prime_editing |
In his 1557 work The Whetstone of Witte , British mathematician Robert Recorde proposed an exponent notation by prime factorisation , which remained in use up until the eighteenth century and acquired the name Arabic exponent notation . The principle of Arabic exponents was quite similar to Egyptian fractions ; large ... | https://en.wikipedia.org/wiki/Prime_factor_exponent_notation |
In mathematics , a prime geodesic on a hyperbolic surface is a primitive closed geodesic , i.e. a geodesic which is a closed curve that traces out its image exactly once. Such geodesics are called prime geodesics because, among other things, they obey an asymptotic distribution law similar to the prime number theorem .... | https://en.wikipedia.org/wiki/Prime_geodesic |
In mathematics , and in particular model theory , [ 1 ] a prime model is a model that is as simple as possible. Specifically, a model P {\displaystyle P} is prime if it admits an elementary embedding into any model M {\displaystyle M} to which it is elementarily equivalent (that is, into any model M {\displaystyle M} ... | https://en.wikipedia.org/wiki/Prime_model |
In number theory , the prime omega functions ω ( n ) {\displaystyle \omega (n)} and Ω ( n ) {\displaystyle \Omega (n)} count the number of prime factors of a natural number n . {\displaystyle n.} The number of distinct prime factors is assigned to ω ( n ) {\displaystyle \omega (n)} (little omega), while Ω ( n ) {\displ... | https://en.wikipedia.org/wiki/Prime_omega_function |
In astronomy , astrology , and geodesy , the prime vertical or first vertical [ 1 ] is the vertical circle passing east and west through the zenith of a specific location, and intersecting the horizon in its east and west points.
In other words, the prime vertical is the vertical circle perpendicular to the meridian , ... | https://en.wikipedia.org/wiki/Prime_vertical |
In mathematics , a primefree sequence is a sequence of integers that does not contain any prime numbers . More specifically, it usually means a sequence defined by the same recurrence relation as the Fibonacci numbers , but with different initial conditions causing all members of the sequence to be composite numbers th... | https://en.wikipedia.org/wiki/Primefree_sequence |
Plymouth Routines In Multivariate Ecological Research (PRIMER) is a statistical package that is a collection of specialist univariate, multivariate, and graphical routines for analyzing species sampling data for community ecology. [ 1 ] Types of data analyzed are typically species abundance , biomass, presence/absence,... | https://en.wikipedia.org/wiki/Primer-E_Primer |
A primer is a short, single-stranded nucleic acid used by all living organisms in the initiation of DNA synthesis . A synthetic primer may also be referred to as an oligo , short for oligonucleotide. DNA polymerase (responsible for DNA replication) enzymes are only capable of adding nucleotides to the 3’-end of an exis... | https://en.wikipedia.org/wiki/Primer_(molecular_biology) |
A primer dimer ( PD ) is a potential by-product in the polymerase chain reaction (PCR), a common biotechnological method. As its name implies, a PD consists of two primer molecules that have attached ( hybridized ) to each other because of strings of complementary bases in the primers. As a result, the DNA polymerase a... | https://en.wikipedia.org/wiki/Primer_dimer |
Primer extension is a technique whereby the 5' ends of RNA can be mapped - that is, they can be sequenced and properly identified.
Primer extension can be used to determine the start site of transcription (the end site cannot be determined by this method) by which its sequence is known. This technique requires a radi... | https://en.wikipedia.org/wiki/Primer_extension |
Primer walking is a technique used to clone a gene (e.g., disease gene) from its known closest markers (e.g., known gene). As a result, it is employed in cloning and sequencing efforts in plants, fungi, and mammals with minor alterations. This technique, also known as "directed sequencing," employs a series of Sanger s... | https://en.wikipedia.org/wiki/Primer_walking |
Priming is the first contact that antigen-specific T helper cell precursors have with an antigen . It is essential to the T helper cells' subsequent interaction with B cells to produce antibodies . [ 1 ] Priming of antigen-specific naive lymphocytes occurs when antigen is presented to them in immunogenic form (capable ... | https://en.wikipedia.org/wiki/Priming_(immunology) |
Priming or a "priming effect" is said to occur when something that is added to soil or compost affects the rate of decomposition occurring on the soil organic matter (SOM), either positively or negatively. Organic matter is made up mostly of carbon and nitrogen , so adding a substrate containing certain ratios of these... | https://en.wikipedia.org/wiki/Priming_(microbiology) |
In phylogenetics , a primitive (or ancestral ) character, trait, or feature of a lineage or taxon is one that is inherited from the common ancestor of a clade (or clade group) and has undergone little change since. Conversely, a trait that appears within the clade group (that is, is present in any subgroup within the ... | https://en.wikipedia.org/wiki/Primitive_(phylogenetics) |
In algebra, a primitive element of a co-algebra C (over an element g ) is an element x that satisfies
where μ {\displaystyle \mu } is the co-multiplication and g is an element of C that maps to the multiplicative identity 1 of the base field under the co-unit ( g is called group-like ).
If C is a bi-algebra , i.e., a... | https://en.wikipedia.org/wiki/Primitive_element_(co-algebra) |
In geochemistry , the primitive mantle (also known as the bulk silicate Earth ) is the chemical composition of the Earth's mantle during the developmental stage between core-mantle differentiation and the formation of early continental crust . The chemical composition of the primitive mantle contains characteristics of... | https://en.wikipedia.org/wiki/Primitive_mantle |
In mathematics , logic , philosophy , and formal systems , a primitive notion is a concept that is not defined in terms of previously-defined concepts. It is often motivated informally, usually by an appeal to intuition or taken to be self-evident . In an axiomatic theory , relations between primitive notions are restr... | https://en.wikipedia.org/wiki/Primitive_notion |
In algebra , the content of a nonzero polynomial with integer coefficients (or, more generally, with coefficients in a unique factorization domain ) is the greatest common divisor of its coefficients. The primitive part of such a polynomial is the quotient of the polynomial by its content. Thus a polynomial is the pro... | https://en.wikipedia.org/wiki/Primitive_part_and_content |
In finite field theory , a branch of mathematics , a primitive polynomial is the minimal polynomial of a primitive element of the finite field GF( p m ) . This means that a polynomial F ( X ) of degree m with coefficients in GF( p ) = Z / p Z is a primitive polynomial if it is monic and has a root α in GF( p m ) such t... | https://en.wikipedia.org/wiki/Primitive_polynomial_(field_theory) |
Primitive recursive arithmetic ( PRA ) is a quantifier -free formalization of the natural numbers . It was first proposed by Norwegian mathematician Skolem (1923) , [ 1 ] as a formalization of his finitistic conception of the foundations of arithmetic , and it is widely agreed that all reasoning of PRA is finitistic. M... | https://en.wikipedia.org/wiki/Primitive_recursive_arithmetic |
In mathematical logic , the primitive recursive functionals are a generalization of primitive recursive functions into higher type theory . They consist of a collection of functions in all pure finite types.
The primitive recursive functionals are important in proof theory and constructive mathematics . They are a cen... | https://en.wikipedia.org/wiki/Primitive_recursive_functional |
Primodos was a hormone-based pregnancy test , produced by Schering AG , and used in the 1960s and 1970s that consisted of two pills that contained norethisterone (as acetate) and ethinylestradiol . [ 1 ] [ 2 ] It detected pregnancy by inducing menstruation in women who were not pregnant. The presence or absence of mens... | https://en.wikipedia.org/wiki/Primodos |
In inorganic chemistry , the Primogenic Effect describes the change in excited state manifolds for first row vs second and third row metal complexes. The effect is used to rationalize the ability or inability of certain metal complexes to function as photosensitizers , which in turn is relevant to photocatalysis . [ 1... | https://en.wikipedia.org/wiki/Primogenic_Effect |
In mathematical physics , the primon gas or Riemann gas [ 1 ] discovered by Bernard Julia [ 2 ] is a model illustrating correspondences between number theory and methods in quantum field theory , statistical mechanics and dynamical systems such as the Lee-Yang theorem . It is a quantum field theory of a set of non-inte... | https://en.wikipedia.org/wiki/Primon_gas |
Primordial germ cell (PGC) migration is the process of distribution of primordial germ cells throughout the embryo during embryogenesis .
Primordial germ cells are among the first lineages that are established in development [ 1 ] and they are the precursors for gametes . [ 2 ] It is thought that the process of primor... | https://en.wikipedia.org/wiki/Primordial_germ_cell_migration |
In geochemistry , geophysics and nuclear physics , primordial nuclides , also known as primordial isotopes , are nuclides found on Earth that have existed in their current form since before Earth was formed . Primordial nuclides were present in the interstellar medium from which the Solar System was formed, and were fo... | https://en.wikipedia.org/wiki/Primordial_nuclide |
Primordial soup , also known as prebiotic soup and Haldane soup , is the hypothetical set of conditions present on the Earth around 3.7 to 4.0 billion years ago. It is an aspect of the heterotrophic theory (also known as the Oparin–Haldane hypothesis ) concerning the origin of life , first proposed by Alexander Oparin ... | https://en.wikipedia.org/wiki/Primordial_soup |
In molecular biology, a primosome is a protein complex responsible for creating RNA primers on single stranded DNA during DNA replication .
The primosome consists of seven proteins: DnaG primase , DnaB helicase , DnaC helicase assistant, DnaT , PriA , Pri B , and PriC . At each replication fork , the primosome is uti... | https://en.wikipedia.org/wiki/Primosome |
Prim–Read theory , or Prim–Read defense , was an important development in game theory that led to radical changes in the United States ' views on the value of anti-ballistic missile (ABM) systems. The theory assigns a certain cost to deploying defensive missiles and suggests a way to maximize their value in terms of th... | https://en.wikipedia.org/wiki/Prim–Read_theory |
The Prince Albert I Medal was established by Prince Rainier of Monaco [ 1 ] in partnership with the International Association for the Physical Sciences of the Oceans . The medal was named for Prince Albert I and is given for significant work in the physical and chemical sciences of the oceans. The medal is awarded bian... | https://en.wikipedia.org/wiki/Prince_Albert_I_Medal |
Prince Earl Rouse, Jr. (October 12, 1917 – August 10, 2003) [ 1 ] [ 2 ] was an American physical chemist . He received his PhD from the University of Illinois in 1941.
Rouse is most famous for a 1953 publication [ 3 ] in which he introduced what is now known as the Rouse model of polymer dynamics. He was awarded the B... | https://en.wikipedia.org/wiki/Prince_E._Rouse |
Princes Gate Spring Water is a brand of Welsh mineral water distributed across the United Kingdom. It is owned by Nestlé . The water is sourced from a spring near the hamlet of Princes Gate near Narberth in Pembrokeshire , southwest Wales .
Princes Gate was launched in August 1991, when David and Glyn Jones began bott... | https://en.wikipedia.org/wiki/Princes_Gate_Spring_Water |
The Princeton Sound Lab is a research laboratory in the Department of Computer Science at Princeton University , in collaboration with the Department of Music. The Sound Lab conducts research in a variety of areas in computer music , including physical modeling , audio analysis , audio synthesis , programming language... | https://en.wikipedia.org/wiki/Princeton_Sound_Lab |
A principal in computer security is an entity that can be authenticated by a computer system or network . It is referred to as a security principal in Java and Microsoft literature. [ 1 ]
Principals can be individual people, computers, services, computational entities such as processes and threads, or any group of suc... | https://en.wikipedia.org/wiki/Principal_(computer_security) |
In geometry and linear algebra , a principal axis is a certain line in a Euclidean space associated with a ellipsoid or hyperboloid , generalizing the major and minor axes of an ellipse or hyperbola . The principal axis theorem states that the principal axes are perpendicular , and gives a constructive procedure for fi... | https://en.wikipedia.org/wiki/Principal_axis_theorem |
In mathematics and, more specifically, in theory of equations , the principal form of an irreducible polynomial of degree at least three is a polynomial of the same degree n without terms of degrees n −1 and n −2, such that each root of either polynomial is a rational function of a root of the other polynomial.
The pr... | https://en.wikipedia.org/wiki/Principal_form_of_a_polynomial |
In geometric data analysis and statistical shape analysis , principal geodesic analysis is a generalization of principal component analysis to a non-Euclidean , non-linear setting of manifolds suitable for use with shape descriptors such as medial representations .
This statistics -related article is a stub . You can ... | https://en.wikipedia.org/wiki/Principal_geodesic_analysis |
Principal interacting orbital ( PIO ), based on quantum chemical calculations, provides chemists with visualization of a set of semi-localized dominant interacting orbitals. [ 1 ] The method offers additional perspective to molecular orbitals (MO) obtained from quantum chemical calculations ( DFT for instance), which o... | https://en.wikipedia.org/wiki/Principal_interacting_orbital |
In quantum mechanics , the principal quantum number ( n ) of an electron in an atom indicates which electron shell or energy level it is in. Its values are natural numbers (1, 2, 3, ...).
Hydrogen and Helium , at their lowest energies, have just one electron shell. Lithium through Neon (see periodic table ) have two s... | https://en.wikipedia.org/wiki/Principal_quantum_number |
In mathematics , a principal n -th root of unity (where n is a positive integer ) of a ring is an element α {\displaystyle \alpha } satisfying the equations
In an integral domain , every primitive n -th root of unity is also a principal n {\displaystyle n} -th root of unity. In any ring, if n is a power of 2 , then an... | https://en.wikipedia.org/wiki/Principal_root_of_unity |
In mathematics, a principal subalgebra of a complex simple Lie algebra is a 3-dimensional simple subalgebra whose non-zero elements are regular .
A finite-dimensional complex simple Lie algebra has a unique conjugacy class of principal subalgebras, each of which is the span of an sl 2 -triple .
This algebra -related ... | https://en.wikipedia.org/wiki/Principal_subalgebra |
Principle , in chemistry, refers to a historical concept of the constituents of a substance, specifically those that produce a certain quality or effect in the substance, such as a bitter principle , which is any one of the numerous compounds having a bitter taste.
The idea of chemical principles developed out of the ... | https://en.wikipedia.org/wiki/Principle_(chemistry) |
In mathematical statistics , the Kullback–Leibler ( KL ) divergence (also called relative entropy and I-divergence [ 1 ] ), denoted D KL ( P ∥ Q ) {\displaystyle D_{\text{KL}}(P\parallel Q)} , is a type of statistical distance : a measure of how much a model probability distribution Q is different from a true probabili... | https://en.wikipedia.org/wiki/Principle_of_Minimum_Discrimination_Information |
In physics, the principle of covariance emphasizes the formulation of physical laws using only those physical quantities the measurements of which the observers in different frames of reference could unambiguously correlate.
Mathematically, the physical quantities must transform covariantly , that is, under a certain ... | https://en.wikipedia.org/wiki/Principle_of_covariance |
The principle of distributivity states that the algebraic distributive law is valid , where both logical conjunction and logical disjunction are distributive over each other so that for any propositions A , B and C the equivalences
and
hold.
The principle of distributivity is valid in classical logic , but both vali... | https://en.wikipedia.org/wiki/Principle_of_distributivity |
In classical logic , intuitionistic logic , and similar logical systems , the principle of explosion [ a ] [ b ] is the law according to which any statement can be proven from a contradiction . [ 1 ] [ 2 ] [ 3 ] That is, from a contradiction, any proposition (including its negation ) can be inferred; this is known as d... | https://en.wikipedia.org/wiki/Principle_of_explosion |
In user interface design and software design , [ 1 ] the principle of least astonishment ( POLA ), also known as principle of least surprise , [ a ] proposes that a component of a system should behave in a way that most users will expect it to behave, and therefore not astonish or surprise users. The following is a cor... | https://en.wikipedia.org/wiki/Principle_of_least_astonishment |
In organic chemistry , the principle of least motion is the hypothesis that when multiple species with different nuclear structures could theoretically form as products of a given chemical reaction , the more likely to form tends to be the one requiring the least amount of change in nuclear structure or the smallest ch... | https://en.wikipedia.org/wiki/Principle_of_least_motion |
The principle of maximum caliber ( MaxCal ) or maximum path entropy principle , suggested by E. T. Jaynes , [ 1 ] can be considered as a generalization of the principle of maximum entropy . It postulates that the most unbiased probability distribution of paths is the one that maximizes their Shannon entropy . This entr... | https://en.wikipedia.org/wiki/Principle_of_maximum_caliber |
In the history of science , the principle of maximum work was a postulate concerning the relationship between chemical reactions , heat evolution, and the potential work produced there from. The principle was developed in approximate form in 1875 by French chemist Marcellin Berthelot , in the field of thermochemistry ... | https://en.wikipedia.org/wiki/Principle_of_maximum_work |
The principle of minimum energy is essentially a restatement of the second law of thermodynamics . It states that for a closed system , with constant external parameters and entropy , the internal energy will decrease and approach a minimum value at equilibrium. External parameters generally means the volume, but may... | https://en.wikipedia.org/wiki/Principle_of_minimum_energy |
In physics , the principle of relativity is the requirement that the equations describing the laws of physics have the same form in all admissible frames of reference .
For example, in the framework of special relativity , the Maxwell equations have the same form in all inertial frames of reference . In the framework ... | https://en.wikipedia.org/wiki/Principle_of_relativity |
In biological nomenclature , the principle of typification is one of the guiding principles. [ 1 ]
The International Code of Zoological Nomenclature provides that any named taxon in the family group, genus group, or species group have a name-bearing type which allows the name of the taxon to be objectively applied. Th... | https://en.wikipedia.org/wiki/Principle_of_typification |
Principles of Mathematical Analysis , colloquially known as " PMA " or " Baby Rudin ," [ 1 ] is an undergraduate real analysis textbook written by Walter Rudin . Initially published by McGraw Hill in 1953, it is one of the most famous mathematics textbooks ever written.
As a C. L. E. Moore instructor , Rudin taught th... | https://en.wikipedia.org/wiki/Principles_of_Mathematical_Analysis |
The Prins reaction is an organic reaction consisting of an electrophilic addition of an aldehyde or ketone to an alkene or alkyne followed by capture of a nucleophile or elimination of an H + ion. [ 1 ] [ 2 ] [ 3 ] The outcome of the reaction depends on reaction conditions. With water and a protic acid such as sulfuric... | https://en.wikipedia.org/wiki/Prins_reaction |
Print-through is a generally undesirable effect that arises in the use of magnetic tape for storing analog information, in particular music , caused by contact transfer of signal patterns from one layer of tape to another as it sits wound concentrically on a reel.
Print-through is a category of noise caused by contact... | https://en.wikipedia.org/wiki/Print-through |
PrintNightmare is a critical security vulnerability affecting the Microsoft Windows operating system. [ 2 ] [ 5 ] The vulnerability occurred within the print spooler service. [ 6 ] [ 7 ] There were two variants, one permitting remote code execution (CVE-2021-34527), and the other leading to privilege escalation (CVE-20... | https://en.wikipedia.org/wiki/PrintNightmare |
Print Screen (often abbreviated Print Scrn , Prnt Scrn , Prnt Scr , Prt Scrn , Prt Scn , Prt Scr , Prt Sc , Pr Sc , or PS ) is a key present on most PC keyboards . It is typically situated in the same section as the break key and scroll lock key. The print screen may share the same key as system request .
Under comman... | https://en.wikipedia.org/wiki/Print_Screen |
In computing , a print job is a file or set of files that has been submitted to be printed with a printer .
Jobs are typically identified by a unique number, and are assigned to a particular destination, usually a printer . Jobs can also have options associated with them such as media size, number of copies and priori... | https://en.wikipedia.org/wiki/Print_job |
A printed circuit board ( PCB ), also called printed wiring board ( PWB ), is a laminated sandwich structure of conductive and insulating layers, each with a pattern of traces, planes and other features (similar to wires on a flat surface) etched from one or more sheet layers of copper laminated onto or between sheet ... | https://en.wikipedia.org/wiki/Printed_circuit_board |
Printer cable refers to the cable that carries data between a computer and a printer .
There are many different types of cables, for example:
Parallel port printers have been slowly phased out, and are now difficult to find for the most part, being considered as an obsolete legacy port on most new computers. Those wh... | https://en.wikipedia.org/wiki/Printer_cable |
The Prior Analytics ( Ancient Greek : Ἀναλυτικὰ Πρότερα ; Latin : Analytica Priora ) is a work by Aristotle on reasoning , known as syllogistic , composed around 350 BCE. [ 1 ] Being one of the six extant Aristotelian writings on logic and scientific method, it is part of what later Peripatetics called the Organon .
T... | https://en.wikipedia.org/wiki/Prior_Analytics |
Priority is a principle in biological taxonomy by which a valid scientific name is established based on the oldest available name. It is a decisive rule in botanical and zoological nomenclature to recognise the first binomial name (also called binominal name in zoology) given to an organism as the correct and acceptabl... | https://en.wikipedia.org/wiki/Priority_(biology) |
In real-time computing , the priority ceiling protocol is a synchronization protocol for shared resources to avoid unbounded priority inversion and mutual deadlock due to wrong nesting of critical sections . In this protocol each resource is assigned a priority ceiling, which is a priority equal to the highest priority... | https://en.wikipedia.org/wiki/Priority_ceiling_protocol |
In ecology , a priority effect refers to the impact that a particular species can have on community development as a result of its prior arrival at a site. [ 1 ] [ 2 ] [ 3 ] There are two basic types of priority effects: inhibitory and facilitative. An inhibitory priority effect occurs when a species that arrives first... | https://en.wikipedia.org/wiki/Priority_effect |
The priority heuristic is a simple, lexicographic decision strategy that helps decide for a good option.
In psychology, priority heuristics correctly predict classic violations of expected utility theory such as the Allais paradox , the four-fold pattern, the certainty effect , the possibility effect, or intransitivit... | https://en.wikipedia.org/wiki/Priority_heuristic |
In real-time computing , priority inheritance is a method for eliminating unbounded priority inversion . Using this programming method, a process scheduling algorithm increases the priority of a process (A) to the maximum priority of any other process waiting for any resource on which A has a resource lock (if it is hi... | https://en.wikipedia.org/wiki/Priority_inheritance |
Prismane or 'Ladenburg benzene' is a polycyclic hydrocarbon with the formula C 6 H 6 . It is an isomer of benzene , specifically a valence isomer . Prismane is far less stable than benzene. The carbon (and hydrogen) atoms of the prismane molecule are arranged in the shape of a six-atom triangular prism —this compound i... | https://en.wikipedia.org/wiki/Prismane |
The prismanes are a class of hydrocarbon compounds consisting of prism -like polyhedra of various numbers of sides on the polygonal base. Chemically, it is a series of fused cyclobutane rings (a ladderane , with all- cis /all- syn geometry) that wraps around to join its ends and form a band, with cycloalkane edges. The... | https://en.wikipedia.org/wiki/Prismanes |
A prismatic compass is a navigation and surveying instrument which is extensively used to find out the bearing of the traversing and included angles between them, waypoints (an endpoint of the course) and direction. [ 1 ] Compass surveying is a type of surveying in which the directions of surveying lines are determined... | https://en.wikipedia.org/wiki/Prismatic_compass |
In solid geometry , a prismatic surface is a polyhedral surface generated by all the lines that are parallel to a given line and that intersect a polygonal chain in a plane that is not parallel to the given line. [ 1 ] The polygonal chain is the directrix of the surface; the parallel lines are its generators (or elemen... | https://en.wikipedia.org/wiki/Prismatic_surface |
Privacy by design is an approach to systems engineering initially developed by Ann Cavoukian and formalized in a joint report on privacy-enhancing technologies by a joint team of the Information and Privacy Commissioner of Ontario (Canada), the Dutch Data Protection Authority , and the Netherlands Organisation for Appl... | https://en.wikipedia.org/wiki/Privacy_by_default |
Meta Platforms Inc. , or Meta for short (formerly known as Facebook ), has faced a number of privacy concerns. These stem partly from the company's revenue model that involves selling information collected about its users for many things including advertisement targeting. Meta Platforms Inc. has also been a part of man... | https://en.wikipedia.org/wiki/Privacy_concerns_with_Facebook |
The term private-collective model of innovation was coined by Eric von Hippel and Georg von Krogh in their 2003 publication in Organization Science . [ 1 ] This innovation model represents a combination of the private investment model and the collective-action innovation model.
In the private investment model innovato... | https://en.wikipedia.org/wiki/Private-collective_model_of_innovation |
PrivateBin is a self-hosted and open-source pastebin software that deletes pasted text after a visit. It can be configured to not delete the paste after first view, at which point there is an option of commenting and replying to the paste, like in a forum . [ 2 ] All pastes on PrivateBin are encrypted with a password. ... | https://en.wikipedia.org/wiki/PrivateBin |
A Private Shared Wireless Network ( PSWN ) is a wide area wireless radio telecommunications network developed and provided by different entities specifically for the use of public safety, utilities, [ 1 ] [ 2 ] machine to machine , and business communications. Its broad area coverage allows for a greater signal range a... | https://en.wikipedia.org/wiki/Private_Shared_Wireless_Network |
Private cloud computing infrastructure is a category of cloud computing that provides comparable benefits to public cloud systems, such as self-service and scalability , but it does so via a proprietary framework. In contrast to public clouds, which cater to multiple entities, a private cloud is specifically designed f... | https://en.wikipedia.org/wiki/Private_cloud_computing_infrastructure |
In computer networking, a private message , personal message , or direct message (abbreviated as PM or DM ) refers to a private communication, often text-based, sent or received by a user of a private communication channel on any given platform. Unlike public posts, PMs are only viewable by the participants. Long a fun... | https://en.wikipedia.org/wiki/Private_message |
The Prix Georges Lemaître is an award created in 1995, in celebration of the centenary of the birth in 1894 of Georges Lemaître . The Association des Anciens et Amis de l'Université catholique de Louvain (Association of the Alumni and Friends of the Université catholique de Louvain ) initiated the award, [ 1 ] as well ... | https://en.wikipedia.org/wiki/Prix_Georges_Lemaître |
The Prix Pierre Guzman ( Pierre Guzman Prize ) was the name given to two prizes, one astronomical and one medical. Both were established by the will of Anne Emilie Clara Goguet (died June 30, 1891), wife of Marc Guzman, and named after her son Pierre Guzman. [ 1 ]
This prize was a sum of 100,000 francs, to be given t... | https://en.wikipedia.org/wiki/Prix_Guzman |
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