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Type of sediment wave
Cyclic steps are rhythmic bedforms associated with Froude super-critical flow instability. They are a type of sediment wave, and are created when supercritical
Cyclic_steps
Bedform in channeled environments
or upper flow regime conditions. If the Froude number is high enough, cyclic steps may form instead of antidunes. Antidunes migrate upstream because the
Antidune
1960 jazz composition by John Coltrane
and released on the 1960 album Giant Steps. The composition features a cyclic chord pattern that has come to be known as Coltrane changes. The composition
Giant_Steps_(composition)
Shape with five sides
A cyclic pentagon is one for which a circle called the circumcircle goes through all five vertices. The regular pentagon is an example of a cyclic pentagon
Pentagon
Tableland feature on Mars
event. Aeolis Mensae is also the first region in Mars where submarine cyclic steps, an erosion feature that gives evidence of an ancient ocean, were identified
Aeolis_Mensae
Firearm actions
There are three different measurements for the rate of fire: cyclic, sustained, and rapid. Cyclic is the maximum given rate of fire given only mechanical function
Rate_of_fire
Initiation and propagation of cracks in a material due to cyclic loading
fatigue is the initiation and propagation of cracks in a material due to cyclic loading. Once a fatigue crack has initiated, it grows a small amount with
Fatigue_(material)
Theorem in Euclidean geometry
rectangle of incenters, the quadrilateral case of the cyclic polygon theorem can be proved in a few steps. The equality of the sums of the radii of the two
Japanese theorem for cyclic polygons
Japanese_theorem_for_cyclic_polygons
A cyclic cellular automaton is a kind of cellular automaton rule developed by David Griffeath and studied by several other cellular automaton researchers
Cyclic_cellular_automaton
Biochemical process in photosynthesis
photosynthesis.[citation needed] There are two types: cyclic photophosphorylation and non-cyclic photophosphorylation.[citation needed][clarification needed]
Photophosphorylation
Type of elevator
engineering firm of J & E Hall of Dartford, Kent, installed its first "Cyclic Elevator", using Hart's patent, in a London office block, and the firm is
Paternoster_lift
overall change in position towards the extracellular signals. These cyclic steps ensure fast movement towards a specific stimulus, such as pathogenic
Uropod_(immunology)
Ordering of binary values, used for positioning and error correction
Other names include "cyclic binary code", "cyclic progression code", "cyclic permuting binary" or "cyclic permuted binary" (CPB). The Gray code is sometimes
Gray_code
Form of cooperative multitasking
A cyclic executive is an alternative to a real-time operating system. It is a form of cooperative multitasking, in which there is only one task. The sole
Cyclic_executive
Formulation of classical mechanics
This is a special case of Noether's theorem. Such coordinates are called "cyclic" or "ignorable". For example, a system may have a Lagrangian L(r,θ,s˙,z˙
Lagrangian_mechanics
Acceleration of real-world corrosion failures
Cyclic Corrosion Testing (CCT) has evolved in recent years, largely within the automotive industry, as a way of accelerating real-world corrosion failures
Cyclic_corrosion_testing
Computing joint values of a kinematic chain from a known end position
usually support joint constraints. The most popular heuristic algorithms are cyclic coordinate descent (CCD) and Forward And Backward Reaching Inverse Kinematics
Inverse_kinematics
Impossible object
The Penrose stairs or Penrose steps, also dubbed the impossible staircase, is an impossible object created by Oscar Reutersvärd in 1937 and later independently
Penrose_stairs
Organic chemical transformations
chemical transformations that yield cyclic products through radical intermediates. They usually proceed in three basic steps: selective radical generation,
Radical_cyclization
Molecule consisting of three identical molecules bound together
Cyclotrimerization of formaldehyde affords 1,3,5-Trioxane: 1,3,5-Trithiane is the cyclic trimer of the otherwise unstable species thioformaldehyde. This heterocycle
Trimer_(chemistry)
Computation of a cyclic redundancy check is derived from the mathematics of polynomial division, modulo two. In practice, it resembles long division of
Computation of cyclic redundancy checks
Computation_of_cyclic_redundancy_checks
Family of enzymes
serine-threonine kinases whose activity is dependent on cellular levels of cyclic AMP (cAMP). PKA is also known as cAMP-dependent protein kinase (EC 2.7.11
Protein_kinase_A
Mathematical version of an order change
cyclic permutation having only one cycle of length greater than 1). Then the list of disjoint cycles can be seen as the composition of these cyclic permutations
Permutation
Structural units of protein involved in photosynthesis
either to NADPH (noncyclic electron transport) or back to cytochrome b6f (cyclic electron transport): plastocyanin → P700 → P700* → FNR → NADPH ↑ ↓ b6f ←
Photosystem
Interplay between observation, experiment, and theory in science
often presented as a fixed sequence of steps, it actually represents a set of general principles. Not all steps take place in every scientific inquiry
Scientific_method
Open problem on 3x+1 and x/2 functions
conjectured that every rational with an odd denominator has an eventually cyclic parity sequence (Periodicity Conjecture). If a parity cycle has length n
Collatz_conjecture
German general-purpose machine gun
highly reliable and easy to operate. It is most notable for its very high cyclic rate for a gun using full-power service cartridges: it averaged about 1
MG_42
Number that permute or shift cyclically when multiplied by another number
that permute or shift cyclically when they are multiplied by another integer n. Examples are: 142857 × 3 = 428571 (shifts cyclically one place left) 142857
Transposable_integer
Family of chemical compounds
Cyclic(alkyl)(amino) carbenes (CAACs) are a class of stable singlet carbene ligands that feature one amino and one sp3 alkyl group adjacent to the carbene
Cyclic_alkyl_amino_carbenes
Class of organic compounds
readily, they can be opened. Cyclic anhydrides with smaller rings are only of academic interest, e.g., malonic anhydride. Cyclic anhydrides that would give
Organic_acid_anhydride
Carbon fixation process
for autotrophic carbon fixation under harsh circumstances because of the cyclical regeneration of acetyl-CoA. Adaptation to extreme environments: The 3-HP/4-HB
3-Hydroxypropionate/4-hydroxybutyrate cycle
3-Hydroxypropionate/4-hydroxybutyrate_cycle
Hindu festival
souls of one's ancestors and light their way for their journeys in the cyclic afterlife. A mythological interpretation of this festive day is the destruction
Diwali
Property of rewriting systems in mathematics
main theorem. Some of the proofs require non-obvious, or even creative, steps, like applying axiom A2 in reverse, thereby rewriting "1" to "a−1 ⋅ a" in
Confluence (abstract rewriting)
Confluence_(abstract_rewriting)
Class of organic compounds
trapping water with desiccants like aluminium oxide and molecular sieves. Steps assumed to be involved: protonation of the carbonyl oxygen, addition of
Acetal
Two-dimensional Turing machine with emergent behavior
of just two colors, more colors are used. The colors are modified in a cyclic fashion. A simple naming scheme is used: for each of the successive colors
Langton's_ant
Naming convention for stereoisomers of molecules
unambiguously name a stereoisomer, and other systems may be preferable. The steps for naming molecules using the CIP system are often presented as: Identification
Cahn–Ingold–Prelog priority rules
Cahn–Ingold–Prelog_priority_rules
Algorithm for division of polynomials
x_−42−10x2−01x−42−10x2+20x−10_−21x−32 The tangent line is y=(−21x−32) A cyclic redundancy check uses the remainder of polynomial division to detect errors
Polynomial_long_division
Naturally produced monosaccharide
glucose molecule can exist in an open-chain (acyclic) as well as ring (cyclic) form. Glucose is naturally occurring and is found in its free state in
Glucose
reconstitute farms to avoid the prohibition on receiving direct payments, counter-cyclical payments, or average crop revenue election payments when the sum of the
List of acts of the 110th United States Congress
List_of_acts_of_the_110th_United_States_Congress
System for naming organic chemical compounds
chains if composed of the same elements. For cyclic systems: Identification of the parent cyclic ring. The cyclic system must obey these rules, in order of
IUPAC nomenclature of organic chemistry
IUPAC_nomenclature_of_organic_chemistry
Type of packaging
cyclic olefin resins do not contain chlorine or other halogens in their molecular structure, being composed solely of carbon and hydrogen. Cyclic olefin
Blister_pack
cellulose fibrils. The pscA (exoC) locus is involved in the synthesis of both cyclic glucan and acid succinoglycan. The att locus is involved in the cell surface
Plant_transformation_vector
Formula for the area of a quadrilateral
quadrilateral. It works on both convex and concave quadrilaterals, whether it is cyclic or not. The German mathematician Carl Anton Bretschneider discovered the
Bretschneider's_formula
Theorem classifying finite simple groups
result of group theory stating that every finite simple group is either cyclic, or alternating, or belongs to a broad infinite class called the groups
Classification of finite simple groups
Classification_of_finite_simple_groups
Computer network protocol
as with CC-C. In contrast to CC-A and CC-B, the complete communication (cyclic and acyclic) between controller and device takes place on Ethernet layer
Profinet
Algorithm for shuffling a finite sequence
Fisher–Yates shuffle, known as Sattolo's algorithm, may be used to generate random cyclic permutations of length n instead of random permutations. The original Fisher–Yates
Fisher–Yates_shuffle
Biological molecules constituting nucleic acids
addition, nucleotides participate in cell signaling (cyclic guanosine monophosphate or cGMP and cyclic adenosine monophosphate or cAMP) and are incorporated
Nucleotide
Corrosion test method
does not create, replicate or accelerate real-world corrosive conditions. Cyclic corrosion testing is better suited to this. The apparatus for testing consists
Salt_spray_test
Chemical compound
α-Amanitin (alpha-Amanitin) is a cyclic peptide of eight amino acids. It is possibly the most deadly of all the amatoxins, toxins found in several species
Α-Amanitin
Error-correcting codes
original view Reed–Solomon code cyclic. Reed–Solomon codes in the BCH view are always cyclic because BCH codes are cyclic. Designers are not required to
Reed–Solomon_error_correction
Compound containing rings with delocalized pi electrons
arenes are organic compounds "with a chemistry typified by benzene" and "cyclically conjugated." The word "aromatic" originates from the past grouping of
Aromatic_compound
Symbolic representation of cyclic existence
teaching aid and meditation tool symbolically representing saṃsāra (or cyclic existence). It is found on the walls of Tibetan Buddhist temples and monasteries
Bhavacakra
Chemical group with the structure RC(OR')3
Lewis acids such as BF3. The group is base stable and can be cleaved in two steps under mild conditions. Mildly acidic hydrolysis yields the ester of
Ortho_ester
Energy-carrying molecule in living cells
ATP-induced shift in equilibrium conformation and reactivate PFK1, including cyclic AMP, ammonium ions, inorganic phosphate, fructose 1,6-bisphosphate and fructose
Adenosine_triphosphate
German general-purpose machine gun
a heavier bolt (950 g (33.51 oz) for a slower 700–900 rounds per minute cyclic rate of fire, compared to 550 g (19.40 oz)), and a new friction ring buffer
MG3_machine_gun
Data used to detect errors in other data
algorithms most used in practice, such as Fletcher's checksum, Adler-32, and cyclic redundancy checks (CRCs), address these weaknesses by considering not only
Checksum
Family of toxins
Amatoxins are a subgroup of at least nine related cyclic peptide toxins found in three genera of deadly poisonous mushrooms (Amanita, Galerina and Lepiota)
Amatoxin
Chemical compound
organic compound with molecular formula (CH2)3CO. It is a four-membered cyclic ketone (cycloalkanone). It is a colorless volatile liquid at room temperature
Cyclobutanone
Mathematical puzzle game
all disks at peg B is reached halfway, i.e. after (3n − 1) / 2 moves. In Cyclic Hanoi, we are given three pegs (A, B, C), which are arranged as a circle
Tower_of_Hanoi
Type of recurrent dynamical network
converge toward a pattern that may either be fixed-point (a single state), cyclic (with regularly recurring states), chaotic (locally but not globally unstable)
Attractor_network
of messages in the system. Termination is handled by each node in three steps : Send signals on all incoming edges except the first edge. (Each node will
Dijkstra–Scholten_algorithm
Reference model for enterprise architecture
execution of architecture planning activities. The process is iterative and cyclic. Each step checks with Requirements. Phase C involves some combination of
TOGAF
Class of compact connected topological spaces
multiplicative additive cyclic abelian dihedral nilpotent solvable Glossary of group theory List of group theory topics Finite groups Cyclic group Zn Symmetric
Solenoid_(mathematics)
Figurate number
Six triangular pyramids with n steps fit in a cuboid of size n(n + 1)(n + 2)
Triangular_number
Rock formation in the Vermilion Cliffs National Monument in Arizona, US
eolian sandstone composed of rhythmic and cyclic alternating grainflow and windripple laminae. The rhythmic, cyclic alternating laminae represent periodic
The_Wave_(Arizona)
required to synthesize molybdopterin (MPT) from precursor Z (now known as cyclic pyranopterin monophosphate). Molydopterin is subsequently complexed with
Molybdopterin_synthase
Substitution reaction in organic chemistry involving free radicals
free radicals as a reactive intermediate. The reaction involves several steps: The overall reaction (equation 1) substitutes X in the substrate A−X to
Radical_substitution
Problem of inverting exponentiation in groups
exponential function. In group-theoretic terms, the powers of 10 form a cyclic group G under multiplication, and 10 is a generator for this group. The
Discrete_logarithm
Chemical compound
configuration at the phosphine. For example, cyclic chiral tertiary phosphine oxides can be reduced to cyclic tertiary phosphines. Phenylsilane combines
Phenylsilane
Chemical compound found in some species of mushrooms
dimethyltryptamine nor psilocin are intermediates. The sequence of the intermediate steps has been shown to involve four enzymes (PsiD P0DPA6, PsiH P0DPA7, PsiK P0DPA8
Psilocybin
Test for prion disease
Protein misfolding cyclic amplification (PMCA) is an amplification technique (conceptually like polymerase chain reaction (PCR) but not involving nucleotides)
Protein misfolding cyclic amplification
Protein_misfolding_cyclic_amplification
Chinese five elements
which indicates the foreordained destiny (運; yùn) of a dynasty; hence, the cyclic succession of the elements also indicates dynastic transitions. Zou Yan
Wuxing_(Chinese_philosophy)
End times in Norse mythology
is "a case of reduplication of the anthropogeny, understandable from the cyclic nature of the Eddic eschatology." Simek says that Hoddmímis holt "should
Ragnarök
Simple curve of Euclidean geometry
A cyclic polygon is any convex polygon about which a circle can be circumscribed, passing through each vertex. A well-studied example is the cyclic quadrilateral
Circle
Statistics concept
unique positive-definite symmetric square root S1/2. We can again use the "cyclic property" of the trace to write det ( Σ ) − n 2 exp ( − 1 2 tr ( S 1
Estimation of covariance matrices
Estimation_of_covariance_matrices
Irish novelist and poet (1882–1941)
characters' identities interplay and are transformed. Giambattista Vico's cyclical view of history—in which civilisation rises from chaos, passes through
James_Joyce
Hydrocarbon compound (C6H6)
of petroleum and is one of the elementary petrochemicals. Because of the cyclic continuous pi bonds between the carbon atoms and satisfying the rules of
Benzene
Iterative algorithm on numbers
the end result is reached in a fairly small number of steps (within seven iterations or steps). Note that the numbers α and β have the same digit sum
Kaprekar's_routine
To identify peptides binding a target
RNA-programmed incorporation of multiple N-methyl-amino acids into linear and cyclic peptides". Chemistry & Biology. 15 (1): 32–42. doi:10.1016/j.chembiol.2007
MRNA_display
Heterocyclic ligand that can complex molybdenum to form a Mo-cofactor
8‑dihydroguanosine 5'‑triphosphate (3',8‑cH2GTP), (ii) the formation of cyclic pyranopterin monophosphate (cPMP) from the 3',8‑cH2GTP, (iii) the conversion
Molybdopterin
Base-20 numeral system
primitive roots, vigesimal has infinitely many cyclic primes, but the fraction of primes that are cyclic is not necessarily ~37.395%. An UnrealScript program
Vigesimal
Algorithms and methods of plotting the Mandelbrot set on a computing device
subtract from n is in the interval [0, 1). For the coloring we must have a cyclic scale of colors (constructed mathematically, for instance) and containing
Plotting algorithms for the Mandelbrot set
Plotting_algorithms_for_the_Mandelbrot_set
Layer for end-to-end network communication
AppleTalk, and Fibre Channel. ATP, AppleTalk Transaction Protocol CUDP, Cyclic UDP DCCP, Datagram Congestion Control Protocol FCP, Fibre Channel Protocol
Transport_layer
Family of ion channel proteins
(February 2008). "Structure of the transmembrane regions of a bacterial cyclic nucleotide-regulated channel". Proceedings of the National Academy of Sciences
Cation_channel_superfamily
Subdiscipline of chemistry, focusing on carbon compounds
groups present. Such compounds can be "straight-chain", branched-chain or cyclic. The degree of branching affects characteristics, such as the octane number
Organic_chemistry
Method of exchanging cryptographic keys
Bob agree on a natural number n and a generating element g in the finite cyclic group G of order n. (This is usually done long before the rest of the protocol;
Diffie–Hellman_key_exchange
Deformation mechanism in crystallines
slip lines", is similar to that of those arising from cyclic loading, but the resultant steps are usually more localised and have lower heights. They
Slip_bands_in_metals
Chemical compound
which stabilises the incoming amine through a hydrogen-bonded 7-membered cyclic transition state. Because of the extraordinary coupling efficiency of HATU
HATU
Mathematical decision making technique similar to Analytic Hierarchy Process
(primitive or imprimitive [cyclic]) or it is reducible with one being a simple or a multiple root and whether the system is cyclic or not. Two kinds of outcomes
Analytic_network_process
Structure to allow fish to migrate upriver around barriers
A fish ladder, also known as a pescalator, fishway, fish pass, fish steps or fish cannon, is a waterway structure on or around artificial and natural
Fish_ladder
Polymerisation of glucose molecules into glycogen
adenylate cyclase. The latter enzyme causes the formation of cyclic AMP from ATP; two molecules of cyclic AMP bind to the regulatory subunit of protein kinase
Glycogenesis
Lake in California and Nevada, US
and the melting snow, communities returned to higher elevations. This cyclical pattern of movement sustained Washoe society for generations. Cave Rock
Lake_Tahoe
Drug used to treat asthma
of phosphodiesterase, inhibiting phosphodiesterase degradation action of cyclic 3′,5′-adenosine monophosphate (cAMP). This resulted accumulation of cAMP
Anti-asthmatic_agent
Law stating that bone adapts to mechanical loading
duration, magnitude, and rate of loading, and it has been found that only cyclic loading can induce bone formation. When loaded, fluid flows away from areas
Wolff's_law
Dwarf avatar of Vishnu
वामन, lit. 'Dwarf', IAST: Vāmana), also known as Trivikrama (lit. 'three steps'), Urukrama (lit. 'far-stepping'), Upendra (lit. 'Indra’s younger brother/Superior
Vamana
Biological process to convert light into chemical energy
NADPH. The light-dependent reactions are of two forms: cyclic and non-cyclic. In the non-cyclic reaction, the photons are captured in the light-harvesting
Photosynthesis
Computer expansion bus standard
3-way interlaced forward error correction (FEC) is used in addition to cyclic redundancy check (CRC). A fixed 256 byte Flow Control Unit (FLIT) block
PCI_Express
Group that is also a differentiable manifold with group operations that are smooth
we give the general definition of the Lie algebra of a Lie group (in 4 steps): Vector fields on any smooth manifold M can be thought of as derivations
Lie_group
Numerical linear algebra algorithm
element once, in some predetermined order. It has been shown that this cyclic Jacobi attains quadratic convergence, just like the classical Jacobi. The
Jacobi_eigenvalue_algorithm
Phenomenon in chemistry
branching steps which end with more than one active species being produced. The photolysis of hydroperoxides is the main example. Termination steps in which
Photo-oxidation_of_polymers
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