An orientation is acyclic if it contains no directed cycle, and is totally cyclic if every edge is contained in some oriented cycle. |
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Other than fluid incompressibility and cyclic averaging, no assumptions are required! |
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In some sense, the cyclic idea still uses inflation to smooth out the universe. |
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In a culture which conceptualizes time as cyclic the idea of rebirth seems natural. |
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As the cyclic activity of our solar orbit governs all life on earth, so our cosmic orbit governs all life in the solar system. |
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Chewing is a cyclic motion of the mandible and tongue apparatus, whereby food is reduced between the maxillary and mandibular teeth. |
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The disorder is characterized by the cyclic recurrence of symptoms during the luteal phase of the menstrual cycle. |
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This enzyme system catalyses the oxidative deamination of primary aromatic amines, long-chain diamines and tertiary cyclic amines. |
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The system's performance in cyclic tests at the University of California, Berkeley, was also astonishing. |
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This action made the situation even worse, because the left cyclic only put us into a sharp angle of bank before impact. |
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Polar bears live in high-latitude environments characterized by cyclic variation in form and extent of sea ice. |
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The evolution of the universe could be cyclic, with regularly repeating periods of expansion and contraction. |
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The basic mode of action is to make the cyclic structure a straight chain molecule. |
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Their search for the perfect beat has resulted in a series of sound experiments packed with cyclic grooves and hypnotic rhythms. |
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He theorized that the structure of these compounds were long, chainlike molecules and not aggregates or cyclic compounds as previously thought. |
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There are three cyclic variations in the orbit, with periods of 23,000, 41,000, and 100,000 years. |
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The oxirane functional group is a subset of organic cyclic ether compounds. |
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Two rotating wall clouds revealed twin low-level mesocyclones on the SW side of a classic, cyclic supercell. |
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When the number of units is between three and ten, sodium metaphosphate forms a cyclic ring of alternating phosphorous and oxygen atoms. |
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He understood that this was an extremely slow cyclic process and that the Earth therefore had to be extremely ancient. |
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While the deal was imperfect, it beat lurking alternatives like another generation split by minefields or another cyclic war of revenge. |
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The cyclic c-AMPB and bicyclic bc-AMPB molecules finally allow the discussion of peptide motion under the action of different constraints. |
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In the general case, the hexagon is no longer cyclic, but the triangles are still equal and centrally symmetric. |
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The theorem states that all central division algebras over algebraic number fields are cyclic algebras. |
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An alicyclic compound is an organic compound that is both aliphatic and cyclic. |
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I don't think it's mania, exactly, and I've yet to observe a cyclic rhythm in Alex's behavior. |
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Relative portions of total aliphatics and cyclic triterpenoids in the wax of intact fruits and of enzymatically isolated cuticles. |
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Muscle contraction results from the cyclic interaction of the myosin head with actin. |
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The syndrome is cyclic with exacerbations and remissions occurring in a randomized pattern. |
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When scaling due to cyclic freezing occurs, often the cause is judged to be de-icing chemicals, particularly calcium chloride. |
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The Quartet is a cyclic composition full of fine music ranging from the eloquent to the virtuosic. |
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By echoing the seasonal bleakness of a northern winter, he leaves unspoken but implicit the possibility of cyclic renewal. |
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The new terror was cyclic, and the cycle took exactly a century to complete. |
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By sharing two oxygen atoms, silicates can form either cyclic or chain structures. |
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Since Tucker hexagons are cyclic, so are the hexagons of the six circumcenters at hand. |
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Before beginning any pharmacologic treatment, the pattern, intensity, and cyclic nature of the patient's migraine must be clarified. |
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A second constraint on the timescale of canyon filling relates to the cyclic stratigraphy documented at the Umberatana syncline example. |
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The molecules we have generated are complex catenanes, wherein the cyclic strands are linked to both of the continuous strands. |
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The ultimate product of the ligations involved in producing the molecules we use is a cyclic molecule or a catenane. |
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When applying predictive techniques to the horoscope the astrologer first looks at the major cyclic energies at work. |
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He examines orders of elements and proves that there is a subgroup for every number dividing the order of a cyclic group. |
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It puts an end to the cyclic character of the six strophes and opens the door back into quotidian time. |
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One adds support for error detection codes such as checksums and cyclic redundancy codes. |
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With them, the ancients could accurately measure the size of the earth, map it, and chronometrically tick off the cyclic passage of the ages. |
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Benzene is planar and has an uninterrupted cyclic array of three conjugated double bonds arranged in a monocyclic six membered ring. |
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In pericyclic reactions, bonds are made or broken in a concerted cyclic transition state. |
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Interaction is a cyclic process in which two actors alternately listen, think and speak. |
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The cyclic nature of history demands a renaissance after every Dark Age. |
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A highly conserved feature is that the cells of all glands respond to their respective, regulatory tropic hormone with an increase in cyclic nucleotide. |
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They have anchored bimetallic catalysts to the insides of such molecular sieves and have found that they can selectively hydrogenate cyclic polyenes. |
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Equilibrium concepts first came into wide use in geomorphology as an alternative to the cyclic theories of landscape evolution of William Morris Davis. |
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This information is independent both of the orientation chosen for the plane and of the orientation for the polygon specified by the cyclic order of its vertices. |
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Geologists are now investigating whether these groupings correspond to another new source of evidence of cyclic patterns in Earth's recent history. |
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The increase of pore pressure due to cyclic loadings under undrained conditions causes the effective confining pressure and the shear strength of the soil to decrease. |
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The work of Gough has shown that a metal deforms under cyclic strain by slip on the same atomic planes and in the same crystallographic directions as in unidirectional strain. |
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These effectors can assume a vast diversity of chemical forms, ranging from simple inorganic molecules to complex nucleotides such as cyclic adenosine monophosphate. |
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If you follow fashion, then you know it moves in a cyclic pattern. |
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Epoxidation, the conversion of an olefin to a cyclic ether through reaction with hydrogen peroxide, a peracid, or oxygen, is an important chemical technique. |
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At times, the ensemble pieces take on a relentlessly driving momentum, locking into a cyclic repetition that is embellished by individual trills, flourishes or patters. |
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In each cyclic test, we sampled 10 peak values every 1000 cycles and used the average of the 10 values as a representative value at each 1000th cycle. |
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A striking manifestation of this phenomena is the ability to grow crystalline solid-state structures from a solution of cyclic elastin-like oligopeptides by heating. |
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He jabs out a cyclic figure, percussively attacking his keys. |
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Fine-changing the structure, namely, substituting the hydroxyl group in the cyclic imide ring of 4 by a methylester group, triggers accumulation of 5 in the lipid droplets. |
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Cilostazol blocks the activity of the enzyme phosphodiesterase which induces platelet aggregation and prevents the degradation of cyclic adenosine monophosphate. |
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He said that he had detected forward drift and had put in what he perceived as enough aft cyclic to correct the problem, but the drift had continued. |
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The oeuvre includes the formally ingenious Violin Sonata no.l, its finale a set of cyclic variations recapitulating in reverse order the themes of the entire work. |
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The thick sedimentary deposits beneath the world's continental shelves respond to one of the Earth's fundamental cyclic processes, the rise and fall of global sea level. |
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Although there were the usual cyclic downturns, the rural economy on the whole rapidly improved in the twenty years succeeding the suspension of cash payments. |
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However, Brahmagupta in 628 presented formulae for solving a dozen problems involving cyclic quadrilaterals that were not solved in the West before the Renaissance. |
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Postmenopausal women who receive cyclic HRT should where possible be scanned during the postmenstrual phase of their artificial cycle. |
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In scale insects no examples of cyclic parthenogenesis are known and parthenogenesis can be thelytokous, deuterotokous or arrhenotokous. |
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It is well known that a Peano space is a cactoid if and only if each of its true cyclic elements is a 2-sphere. |
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Proposition 1.5.6. Any subgroup of an infinite cyclic group is also an infinite cyclic group. |
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The cyclic changes characterizing endometrioses are particularly apparent in endometriosis of the bladder. |
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Their motion is the result of cyclic surges interspersed with longer periods of inactivity, on both hourly and centennial time scales. |
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Therefore, the monolayer could be used to demonstrate the effects of cyclic stretching on interepithelial gap formation. |
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The Milankovitch cycles are a set of cyclic variations in characteristics of the Earth's orbit around the Sun. |
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The count is cyclic, electing or eliminating candidates and transferring votes until all seats are filled. |
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In many cases facies changes and other lithological features in sequences of sedimentary rock have a cyclic nature. |
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This cyclic nature was caused by cyclic changes in sediment supply and the sedimentary environment. |
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Tides are the cyclic rising and falling of local sea levels caused by the tidal forces of the Moon and the Sun acting on the oceans. |
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Recent widespread shellfish kills near the coasts of Oregon and Washington are also blamed on cyclic dead zone ecology. |
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The controls that van Heijst used were von Baumhauer's inventions, the cyclic and collective. |
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The cyclic control is usually located between the pilot's legs and is commonly called the cyclic stick or just cyclic. |
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The control is called the cyclic because it changes the pitch of the rotor blades cyclically. |
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If the pilot pushes the cyclic forward, the rotor disk tilts forward, and the rotor produces a thrust in the forward direction. |
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The cyclic is used to eliminate drift in the horizontal plane, that is to control forward and back, right and left. |
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Displacing the cyclic forward will cause the nose to pitch down, with a resultant increase in airspeed and loss of altitude. |
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Aft cyclic will cause the nose to pitch up, slowing the helicopter and causing it to climb. |
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The interglacials and glacials coincide with cyclic changes in the Earth's orbit. |
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The main driver of this cyclic pattern is thought to be the parasitic nematode worm Trichostrongylus tenuis. |
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It's fascinating to watch these cyclic to-and-fros in science, like the rise and fall of hemlines, but more stimulating, intellectually at least. |
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This section describes the biotransformation of cyclic and acyclic monoterpenes by different fungi. |
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Adaptational responses of the human Achilles tendon by modulation of the applied cyclic strain magnitude. |
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Antimigraine diet may be helpful in children with cyclic vomiting syndrome. |
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These include kinins like PKC and tyrosine kinase, TNF, NF-kappa B, cyclic D, protein API, STAT family agents, etc. |
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Effects of cyclic AMP-elevating hormones and autacoids on LPS-activated rat peritoneal, bronchoalveolar and hepatic macrophages. |
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About two-thirds of women with breast pain have a problem called cyclic mastalgia. |
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In addition, zinc sulfide, cyclic sulfides,and conjugated dienes and trienes form when reversion occurs. |
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Enkephalin and opiate narcotics increase cyclic GMP accumulation in slices of rat neostriatum. |
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Nephrogenous cyclic AMP, adenylate cyclase-stimulating activity, and the humoral hypercalcemia of malignancy. |
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Which, in order to analysis cyclic phenomena, must be a closed curve hence a circular component. |
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Arginine vasopressin is a cyclic nonapeptide synthesized by neurosecretory cells of the central nervous system. |
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Invariant subspaces, cyclic vectors, commutant and extended eigenvectors of some convolution operators. |
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Facile synthesis of orthogonally protected amino acid building blocks for combinatorial N-backbone cyclic peptide chemistry. |
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Aromatic cyanates are low viscosity resins that can crosslink to form polycyanurate networks by forming thermally stable cyclic triazine rings. |
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He also received postdoctoral training in cyclic nucleotide metabolism at the Tennessee Neuropsychiatric Institute and the University of Calgary. |
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Platelet response to cyclic nucleotides is complex and depends on nucleotide concentrations and the timecourse of platelet exposure. |
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For example, it is believed a high degree of cyclization can occur during the cationic polymerization of diene, cyclic and mono olefin monomers. |
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The chlorinated cyclic sulfite diester endosulfan is a cyclodien insecticide possessing a relatively board spectrum of activity. |
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Sildenafil works by affecting the cyclic guanosine monophosphate and vascular smooth muscle. |
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A single rotor has the disadvantage that controlling attitude requires cyclic pitch variation or deflection of the downwash. |
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Toxicity of microcystin LR, a cyclic heptapeptide hepatotoxin from Microcystis aeruginosa, to rats and mice. |
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The most toxic parts are the small aromatic solvents and the complex sheets of cyclic structures called polycyclic aromatic hydrocarbons. |
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Cram developed the cyclic urea unit as a particularly strong ligand for ammoniums, as it is a strong hydrogen-bond acceptor. |
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The first was an open study of 1600 women who had cyclic mastalgia premenstrually. |
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Epicontinental shallow sea sediments have a complex cyclic structure in which siliciclastic and carbonate sediments alternate recurrently. |
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Mammalian sEH converts epoxides or three membered cyclic ethers to their corresponding diols through the addition of a water molecule. |
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The former leads to an increase in cyclic adenosine monophosphate and the latter to hyperpolarization, both of which result in relaxation. |
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When a material crystallizes and melts during a cyclic deformation, the material produces a substantial hysteresis loop. |
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I checked the exterior angle of a cyclic quadrilateral and found that it did not equal the interior opposite angle. |
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It was also a strong sign, say the researchers, that the fissioning of uranium in at least one part of the Oklo mine operated in a cyclic fashion. |
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Vitamin-K antagonists, such as warfarin, act differently to direct thrombin inhibitors by interfering with the cyclic interconversion of vitamin K and its 2,3 epoxide. |
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Diagenetically, the geochemical analysis indicates a cyclic type of the sedimentation during the deposition of the limestone in an epeiric platform. |
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It features two-axis functionality with cyclic force trim and a Stability and Command Augmentation System available at all speeds with altitude and heading preselects. |
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The smooth muscle relaxation effect is produced through the activation of guanyalate cyclase and resulting increase in intracellular cyclic guanosine 3-5-monophosphate. |
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Lactic acid is polymerized through a condensation reaction to low molecular weight PLA, which is then depolymerized to form lactide, the cyclic dimer of lactic acid. |
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Effects of sildenafil on the relaxation of human corpus cavemosum tissue in vitro and on the activities of cyclic nucleotide phosphodiesterase isozymes. |
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This curing temperature is lowered with crosslinking catalysts such as cyclic aliphatic tertiary amine and a heteroaryl or a tertiary nucleophilic organophosphorus compound. |
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The free element condition and cyclic versus noncyclic stress. |
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Experiments were based on eight multiparous, non-lactating, cyclic Nili-Ravi buffaloes, 4-10 years old and with a body weight in the range of 450-600 kg. |
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At the cellular level, circadian rhythms originate from self-sustained, autoregulated, cyclic expressions of clock genes, which constitute the molecular clock. |
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Three new cyclic diarylheptanoids and other phenolic compounds from the bark of Myrica rubra and their melanogenesis inhibitory and radical scavenging activities. |
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This lends itself to the ongoing problem where the symptoms of these conditions influence each other bidirectionally and lead to a cyclic pattern of disease processes. |
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Theory of cyclic ageing and rejuvenescence of plants, Moscow. |
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Intestinal microflora stimulates myoelectric activity of rat small intestine by promoting cyclic initiation and aboral propagation of migrating myoelectric complex. |
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Aker maintained that the criticisms of the cove's geography were unfounded, because the configuration of the sandbars in the cove was cyclic over the decades. |
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The accepted fundamental thermodynamic temperature scale is the Kelvin scale, based on an ideal cyclic process envisaged for a Carnot heat engine. |
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Shock, impact, or repeated cyclic stresses can cause the laminate to separate at the interface between two layers, a condition known as delamination. |
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Coordinating these two inputs, down collective plus aft cyclic or up collective plus forward cyclic, will result in airspeed changes while maintaining a constant altitude. |
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A swashplate controls the collective and cyclic pitch of the main blades. |
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If the pilot pushes the cyclic to the side, the rotor disk tilts to that side and produces thrust in that direction, causing the helicopter to hover sideways. |
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Most of these cyclic changes are caused by astronomic cycles. |
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Note that we can represent any cyclic event with a one-handed clock. |
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Metals under continual cyclic loading can suffer from metal fatigue. |
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In fruit flies the cyclic AMP system seems to be especially active in brain regions called mushroom bodies, toadstool-shaped extrusions of neurons in the fruit fly brain. |
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This cyclic conflict is known as the Second Hundred Years' War. |
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The ideal net work sought was one which contained only monosulfidic crosslings and lacked modification of the rubber chains by cyclic sulfide groups. |
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