A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.
Muscular contractions characterized by increase in tension without change in length.
Contraction of the UTERINE MUSCLE.
Contractile activity of the MYOCARDIUM.
The process of pictorial communication, between human and computers, in which the computer input and output have the form of charts, drawings, or other appropriate pictorial representation.
A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.
Unstriated and unstriped muscle, one of the muscles of the internal organs, blood vessels, hair follicles, etc. Contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei. Smooth muscle fibers are bound together into sheets or bundles by reticular fibers and frequently elastic nets are also abundant. (From Stedman, 25th ed)
Use of electric potential or currents to elicit biological responses.
A subtype of striated muscle, attached by TENDONS to the SKELETON. Skeletal muscles are innervated and their movement can be consciously controlled. They are also called voluntary muscles.
Muscle contraction with negligible change in the force of contraction but shortening of the distance between the origin and insertion.
Sequential operating programs and data which instruct the functioning of a digital computer.
The physiological narrowing of BLOOD VESSELS by contraction of the VASCULAR SMOOTH MUSCLE.
A basic element found in nearly all organized tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes.
A field of biology concerned with the development of techniques for the collection and manipulation of biological data, and the use of such data to make biological discoveries or predictions. This field encompasses all computational methods and theories for solving biological problems including manipulation of models and datasets.
A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research.
Computer-based representation of physical systems and phenomena such as chemical processes.
The nonstriated involuntary muscle tissue of blood vessels.
That phase of a muscle twitch during which a muscle returns to a resting position.
A state arrived at through prolonged and strong contraction of a muscle. Studies in athletes during prolonged submaximal exercise have shown that muscle fatigue increases in almost direct proportion to the rate of muscle glycogen depletion. Muscle fatigue in short-term maximal exercise is associated with oxygen lack and an increased level of blood and muscle lactic acid, and an accompanying increase in hydrogen-ion concentration in the exercised muscle.
Recording of the changes in electric potential of muscle by means of surface or needle electrodes.
A comprehensive map of the physical interconnections of an organism's neural networks. This modular organization of neuronal architecture is believed to underlie disease mechanisms and the biological development of the CENTRAL NERVOUS SYSTEM.
Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.
A white crystal or crystalline powder used in BUFFERS; FERTILIZERS; and EXPLOSIVES. It can be used to replenish ELECTROLYTES and restore WATER-ELECTROLYTE BALANCE in treating HYPOKALEMIA.
The motor activity of the GASTROINTESTINAL TRACT.
The cartilaginous and membranous tube descending from the larynx and branching into the right and left main bronchi.
In INFORMATION RETRIEVAL, machine-sensing or identification of visible patterns (shapes, forms, and configurations). (Harrod's Librarians' Glossary, 7th ed)
Drugs used to cause constriction of the blood vessels.
The portion of an interactive computer program that issues messages to and receives commands from a user.
A movement, caused by sequential muscle contraction, that pushes the contents of the intestines or other tubular organs in one direction.
Methods for determining interaction between PROTEINS.
A musculomembranous sac along the URINARY TRACT. URINE flows from the KIDNEYS into the bladder via the ureters (URETER), and is held there until URINATION.
Contractile tissue that produces movement in animals.
Precursor of epinephrine that is secreted by the adrenal medulla and is a widespread central and autonomic neurotransmitter. Norepinephrine is the principal transmitter of most postganglionic sympathetic fibers and of the diffuse projection system in the brain arising from the locus ceruleus. It is also found in plants and is used pharmacologically as a sympathomimetic.
The relationship between the dose of an administered drug and the response of the organism to the drug.
A neurotransmitter found at neuromuscular junctions, autonomic ganglia, parasympathetic effector junctions, a subset of sympathetic effector junctions, and at many sites in the central nervous system.
Elements of limited time intervals, contributing to particular results or situations.
The species Oryctolagus cuniculus, in the family Leporidae, order LAGOMORPHA. Rabbits are born in burrows, furless, and with eyes and ears closed. In contrast with HARES, rabbits have 22 chromosome pairs.
A set of statistical methods used to group variables or observations into strongly inter-related subgroups. In epidemiology, it may be used to analyze a closely grouped series of events or cases of disease or other health-related phenomenon with well-defined distribution patterns in relation to time or place or both.
Databases containing information about PROTEINS such as AMINO ACID SEQUENCE; PROTEIN CONFORMATION; and other properties.
An alkaloid, originally from Atropa belladonna, but found in other plants, mainly SOLANACEAE. Hyoscyamine is the 3(S)-endo isomer of atropine.
An alpha-1 adrenergic agonist used as a mydriatic, nasal decongestant, and cardiotonic agent.
Theoretical construct used in applied mathematics to analyze certain situations in which there is an interplay between parties that may have similar, opposed, or mixed interests. In a typical game, decision-making "players," who each have their own goals, try to gain advantage over the other parties by anticipating each other's decisions; the game is finally resolved as a consequence of the players' decisions.
The excretory duct of the testes that carries SPERMATOZOA. It rises from the SCROTUM and joins the SEMINAL VESICLES to form the ejaculatory duct.
The distal and narrowest portion of the SMALL INTESTINE, between the JEJUNUM and the ILEOCECAL VALVE of the LARGE INTESTINE.
A potent vasodilator agent with calcium antagonistic action. It is a useful anti-anginal agent that also lowers blood pressure.
The portion of the descending aorta proceeding from the arch of the aorta and extending to the DIAPHRAGM, eventually connecting to the ABDOMINAL AORTA.
The state of activity or tension of a muscle beyond that related to its physical properties, that is, its active resistance to stretch. In skeletal muscle, tonus is dependent upon efferent innervation. (Stedman, 25th ed)
A slowly hydrolyzed CHOLINERGIC AGONIST that acts at both MUSCARINIC RECEPTORS and NICOTINIC RECEPTORS.
The rotational force about an axis that is equal to the product of a force times the distance from the axis where the force is applied.
Statistical formulations or analyses which, when applied to data and found to fit the data, are then used to verify the assumptions and parameters used in the analysis. Examples of statistical models are the linear model, binomial model, polynomial model, two-parameter model, etc.
A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain.
The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)
A stable prostaglandin endoperoxide analog which serves as a thromboxane mimetic. Its actions include mimicking the hydro-osmotic effect of VASOPRESSIN and activation of TYPE C PHOSPHOLIPASES. (From J Pharmacol Exp Ther 1983;224(1): 108-117; Biochem J 1984;222(1):103-110)
The smaller subunits of MYOSINS that bind near the head groups of MYOSIN HEAVY CHAINS. The myosin light chains have a molecular weight of about 20 KDa and there are usually one essential and one regulatory pair of light chains associated with each heavy chain. Many myosin light chains that bind calcium are considered "calmodulin-like" proteins.
A group of intracellular-signaling serine threonine kinases that bind to RHO GTP-BINDING PROTEINS. They were originally found to mediate the effects of rhoA GTP-BINDING PROTEIN on the formation of STRESS FIBERS and FOCAL ADHESIONS. Rho-associated kinases have specificity for a variety of substrates including MYOSIN-LIGHT-CHAIN PHOSPHATASE and LIM KINASES.
Organized activities related to the storage, location, search, and retrieval of information.
Devices capable of receiving data, retaining data for an indefinite or finite period of time, and supplying data upon demand.
The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.
Theoretical representations that simulate the behavior or activity of systems, processes, or phenomena. They include the use of mathematical equations, computers, and other electronic equipment.
Auditory and visual instructional materials.
A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company.
Neurons which activate MUSCLE CELLS.
A biochemical messenger and regulator, synthesized from the essential amino acid L-TRYPTOPHAN. In humans it is found primarily in the central nervous system, gastrointestinal tract, and blood platelets. Serotonin mediates several important physiological functions including neurotransmission, gastrointestinal motility, hemostasis, and cardiovascular integrity. Multiple receptor families (RECEPTORS, SEROTONIN) explain the broad physiological actions and distribution of this biochemical mediator.
A methylxanthine naturally occurring in some beverages and also used as a pharmacological agent. Caffeine's most notable pharmacological effect is as a central nervous system stimulant, increasing alertness and producing agitation. It also relaxes SMOOTH MUSCLE, stimulates CARDIAC MUSCLE, stimulates DIURESIS, and appears to be useful in the treatment of some types of headache. Several cellular actions of caffeine have been observed, but it is not entirely clear how each contributes to its pharmacological profile. Among the most important are inhibition of cyclic nucleotide PHOSPHODIESTERASES, antagonism of ADENOSINE RECEPTORS, and modulation of intracellular calcium handling.
Theory and development of COMPUTER SYSTEMS which perform tasks that normally require human intelligence. Such tasks may include speech recognition, LEARNING; VISUAL PERCEPTION; MATHEMATICAL COMPUTING; reasoning, PROBLEM SOLVING, DECISION-MAKING, and translation of language.
The smooth muscle coat of the uterus, which forms the main mass of the organ.
A meshlike structure composed of interconnecting nerve cells that are separated at the synaptic junction or joined to one another by cytoplasmic processes. In invertebrates, for example, the nerve net allows nerve impulses to spread over a wide area of the net because synapses can pass information in any direction.
A class of drugs that act by selective inhibition of calcium influx through cellular membranes.
Linear POLYPEPTIDES that are synthesized on RIBOSOMES and may be further modified, crosslinked, cleaved, or assembled into complex proteins with several subunits. The specific sequence of AMINO ACIDS determines the shape the polypeptide will take, during PROTEIN FOLDING, and the function of the protein.
Arteries which arise from the abdominal aorta and distribute to most of the intestines.
The field which deals with illustrative clarification of biomedical concepts, as in the use of diagrams and drawings. The illustration may be produced by hand, photography, computer, or other electronic or mechanical methods.
Large, multinucleate single cells, either cylindrical or prismatic in shape, that form the basic unit of SKELETAL MUSCLE. They consist of MYOFIBRILS enclosed within and attached to the SARCOLEMMA. They are derived from the fusion of skeletal myoblasts (MYOBLASTS, SKELETAL) into a syncytium, followed by differentiation.
A diverse superfamily of proteins that function as translocating proteins. They share the common characteristics of being able to bind ACTINS and hydrolyze MgATP. Myosins generally consist of heavy chains which are involved in locomotion, and light chains which are involved in regulation. Within the structure of myosin heavy chain are three domains: the head, the neck and the tail. The head region of the heavy chain contains the actin binding domain and MgATPase domain which provides energy for locomotion. The neck region is involved in binding the light-chains. The tail region provides the anchoring point that maintains the position of the heavy chain. The superfamily of myosins is organized into structural classes based upon the type and arrangement of the subunits they contain.
An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells. Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.
A calcium channel blocker that is a class IV anti-arrhythmia agent.
An amine derived by enzymatic decarboxylation of HISTIDINE. It is a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and also a centrally acting neurotransmitter.
Drugs that selectively bind to and activate alpha adrenergic receptors.
The recording of muscular movements. The apparatus is called a myograph, the record or tracing, a myogram. (From Stedman, 25th ed)
Measurement of the pressure or tension of liquids or gases with a manometer.
A non-steroidal anti-inflammatory agent (NSAID) that inhibits the enzyme cyclooxygenase necessary for the formation of prostaglandins and other autacoids. It also inhibits the motility of polymorphonuclear leukocytes.
The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway.
Compounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction.
Application of statistical procedures to analyze specific observed or assumed facts from a particular study.
The properties, processes, and behavior of biological systems under the action of mechanical forces.
The vessels carrying blood away from the heart.
The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801)
Theoretical representations that simulate the behavior or activity of genetic processes or phenomena. They include the use of mathematical equations, computers, and other electronic equipment.
Voluntary activity without external compulsion.
A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.
Methods developed to aid in the interpretation of ultrasound, radiographic images, etc., for diagnosis of disease.
The muscular membranous segment between the PHARYNX and the STOMACH in the UPPER GASTROINTESTINAL TRACT.
A selective adrenergic alpha-1 antagonist used in the treatment of HEART FAILURE; HYPERTENSION; PHEOCHROMOCYTOMA; RAYNAUD DISEASE; PROSTATIC HYPERTROPHY; and URINARY RETENTION.
Extensive collections, reputedly complete, of facts and data garnered from material of a specialized subject area and made available for analysis and application. The collection can be automated by various contemporary methods for retrieval. The concept should be differentiated from DATABASES, BIBLIOGRAPHIC which is restricted to collections of bibliographic references.
An adenine nucleotide containing three phosphate groups esterified to the sugar moiety. In addition to its crucial roles in metabolism adenosine triphosphate is a neurotransmitter.
21-Amino-acid peptides produced by vascular endothelial cells and functioning as potent vasoconstrictors. The endothelin family consists of three members, ENDOTHELIN-1; ENDOTHELIN-2; and ENDOTHELIN-3. All three peptides contain 21 amino acids, but vary in amino acid composition. The three peptides produce vasoconstrictor and pressor responses in various parts of the body. However, the quantitative profiles of the pharmacological activities are considerably different among the three isopeptides.
Software designed to store, manipulate, manage, and control data for specific uses.
A protein complex of actin and MYOSINS occurring in muscle. It is the essential contractile substance of muscle.
Abrupt changes in the membrane potential that sweep along the CELL MEMBRANE of excitable cells in response to excitation stimuli.
A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
A process that includes the determination of AMINO ACID SEQUENCE of a protein (or peptide, oligopeptide or peptide fragment) and the information analysis of the sequence.
Complex sets of enzymatic reactions connected to each other via their product and substrate metabolites.
Databases devoted to knowledge about specific genes and gene products.
Interacting DNA-encoded regulatory subsystems in the GENOME that coordinate input from activator and repressor TRANSCRIPTION FACTORS during development, cell differentiation, or in response to environmental cues. The networks function to ultimately specify expression of particular sets of GENES for specific conditions, times, or locations.
Agents that inhibit the actions of the parasympathetic nervous system. The major group of drugs used therapeutically for this purpose is the MUSCARINIC ANTAGONISTS.
The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow.
A mammalian neuropeptide of 10 amino acids that belongs to the tachykinin family. It is similar in structure and action to SUBSTANCE P and NEUROKININ B with the ability to excite neurons, dilate blood vessels, and contract smooth muscles, such as those in the BRONCHI.
A 21-amino acid peptide produced in a variety of tissues including endothelial and vascular smooth-muscle cells, neurons and astrocytes in the central nervous system, and endometrial cells. It acts as a modulator of vasomotor tone, cell proliferation, and hormone production. (N Eng J Med 1995;333(6):356-63)
The hollow, muscular organ that maintains the circulation of the blood.
A process fundamental to muscle physiology whereby an electrical stimulus or action potential triggers a myocyte to depolarize and contract. This mechanical muscle contraction response is regulated by entry of calcium ions into the cell.
The artery formed by the union of the right and left vertebral arteries; it runs from the lower to the upper border of the pons, where it bifurcates into the two posterior cerebral arteries.
An involuntary movement or exercise of function in a part, excited in response to a stimulus applied to the periphery and transmitted to the brain or spinal cord.
The spread of response if stimulation is prolonged. (Campbell's Psychiatric Dictionary, 8th ed.)
Region of the body immediately surrounding and including the ELBOW JOINT.
An aminoperhydroquinazoline poison found mainly in the liver and ovaries of fishes in the order TETRAODONTIFORMES, which are eaten. The toxin causes paresthesia and paralysis through interference with neuromuscular conduction.
Comprehensive, methodical analysis of complex biological systems by monitoring responses to perturbations of biological processes. Large scale, computerized collection and analysis of the data are used to develop and test models of biological systems.
The arrangement of two or more amino acid or base sequences from an organism or organisms in such a way as to align areas of the sequences sharing common properties. The degree of relatedness or homology between the sequences is predicted computationally or statistically based on weights assigned to the elements aligned between the sequences. This in turn can serve as a potential indicator of the genetic relatedness between the organisms.
Benzopyrroles with the nitrogen at the number one carbon adjacent to the benzyl portion, in contrast to ISOINDOLES which have the nitrogen away from the six-membered ring.
Drugs that bind to but do not activate alpha-adrenergic receptors thereby blocking the actions of endogenous or exogenous adrenergic agonists. Adrenergic alpha-antagonists are used in the treatment of hypertension, vasospasm, peripheral vascular disease, shock, and pheochromocytoma.
A methylpyrrole-carboxylate from RYANIA that disrupts the RYANODINE RECEPTOR CALCIUM RELEASE CHANNEL to modify CALCIUM release from SARCOPLASMIC RETICULUM resulting in alteration of MUSCLE CONTRACTION. It was previously used in INSECTICIDES. It is used experimentally in conjunction with THAPSIGARGIN and other inhibitors of CALCIUM ATPASE uptake of calcium into SARCOPLASMIC RETICULUM.
The long cylindrical contractile organelles of STRIATED MUSCLE cells composed of ACTIN FILAMENTS; MYOSIN filaments; and other proteins organized in arrays of repeating units called SARCOMERES .
Drugs that bind to but do not activate MUSCARINIC RECEPTORS, thereby blocking the actions of endogenous ACETYLCHOLINE or exogenous agonists. Muscarinic antagonists have widespread effects including actions on the iris and ciliary muscle of the eye, the heart and blood vessels, secretions of the respiratory tract, GI system, and salivary glands, GI motility, urinary bladder tone, and the central nervous system.
A subclass of alpha-adrenergic receptors that mediate contraction of SMOOTH MUSCLE in a variety of tissues such as ARTERIOLES; VEINS; and the UTERUS. They are usually found on postsynaptic membranes and signal through GQ-G11 G-PROTEINS.
Conical muscular projections from the walls of the cardiac ventricles, attached to the cusps of the atrioventricular valves by the chordae tendineae.
The main trunk of the systemic arteries.
The systematic study of the complete DNA sequences (GENOME) of organisms.
A naturally occurring prostaglandin that has oxytocic, luteolytic, and abortifacient activities. Due to its vasocontractile properties, the compound has a variety of other biological actions.
An unstable intermediate between the prostaglandin endoperoxides and thromboxane B2. The compound has a bicyclic oxaneoxetane structure. It is a potent inducer of platelet aggregation and causes vasoconstriction. It is the principal component of rabbit aorta contracting substance (RCS).
The voltage differences across a membrane. For cellular membranes they are computed by subtracting the voltage measured outside the membrane from the voltage measured inside the membrane. They result from differences of inside versus outside concentration of potassium, sodium, chloride, and other ions across cells' or ORGANELLES membranes. For excitable cells, the resting membrane potentials range between -30 and -100 millivolts. Physical, chemical, or electrical stimuli can make a membrane potential more negative (hyperpolarization), or less negative (depolarization).
Colloids with a solid continuous phase and liquid as the dispersed phase; gels may be unstable when, due to temperature or other cause, the solid phase liquefies; the resulting colloid is called a sol.
The repeating contractile units of the MYOFIBRIL, delimited by Z bands along its length.
A multistage process that includes cloning, physical mapping, subcloning, determination of the DNA SEQUENCE, and information analysis.
A computer architecture, implementable in either hardware or software, modeled after biological neural networks. Like the biological system in which the processing capability is a result of the interconnection strengths between arrays of nonlinear processing nodes, computerized neural networks, often called perceptrons or multilayer connectionist models, consist of neuron-like units. A homogeneous group of units makes up a layer. These networks are good at pattern recognition. They are adaptive, performing tasks by example, and thus are better for decision-making than are linear learning machines or cluster analysis. They do not require explicit programming.
Filamentous proteins that are the main constituent of the thin filaments of muscle fibers. The filaments (known also as filamentous or F-actin) can be dissociated into their globular subunits; each subunit is composed of a single polypeptide 375 amino acids long. This is known as globular or G-actin. In conjunction with MYOSINS, actin is responsible for the contraction and relaxation of muscle.
Isopropyl analog of EPINEPHRINE; beta-sympathomimetic that acts on the heart, bronchi, skeletal muscle, alimentary tract, etc. It is used mainly as bronchodilator and heart stimulant.
The segment of LARGE INTESTINE between the CECUM and the RECTUM. It includes the ASCENDING COLON; the TRANSVERSE COLON; the DESCENDING COLON; and the SIGMOID COLON.
An enzyme that phosphorylates myosin light chains in the presence of ATP to yield myosin-light chain phosphate and ADP, and requires calcium and CALMODULIN. The 20-kDa light chain is phosphorylated more rapidly than any other acceptor, but light chains from other myosins and myosin itself can act as acceptors. The enzyme plays a central role in the regulation of smooth muscle contraction.
A network of tubules and sacs in the cytoplasm of SKELETAL MUSCLE FIBERS that assist with muscle contraction and relaxation by releasing and storing calcium ions.
Drugs used to cause dilation of the blood vessels.
Signal transduction mechanisms whereby calcium mobilization (from outside the cell or from intracellular storage pools) to the cytoplasm is triggered by external stimuli. Calcium signals are often seen to propagate as waves, oscillations, spikes, sparks, or puffs. The calcium acts as an intracellular messenger by activating calcium-responsive proteins.
Single pavement layer of cells which line the luminal surface of the entire vascular system and regulate the transport of macromolecules and blood components.
The lower right and left chambers of the heart. The right ventricle pumps venous BLOOD into the LUNGS and the left ventricle pumps oxygenated blood into the systemic arterial circulation.
The hemodynamic and electrophysiological action of the HEART VENTRICLES.
Computer-assisted study of methods for obtaining useful quantitative solutions to problems that have been expressed mathematically.
A storage reservoir for BILE secretion. Gallbladder allows the delivery of bile acids at a high concentration and in a controlled manner, via the CYSTIC DUCT to the DUODENUM, for degradation of dietary lipid.
The physiological widening of BLOOD VESSELS by relaxing the underlying VASCULAR SMOOTH MUSCLE.
Drugs that bind to and activate cholinergic receptors.
The second stomach of ruminants. It lies almost in the midline in the front of the abdomen, in contact with the liver and diaphragm and communicates freely with the RUMEN via the ruminoreticular orifice. The lining of the reticulum is raised into folds forming a honeycomb pattern over the surface. (From Concise Veterinary Dictionary, 1988)
The determination of the pattern of genes expressed at the level of GENETIC TRANSCRIPTION, under specific circumstances or in a specific cell.
A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area.
Organic compounds containing the -CO-NH2 radical. Amides are derived from acids by replacement of -OH by -NH2 or from ammonia by the replacement of H by an acyl group. (From Grant & Hackh's Chemical Dictionary, 5th ed)
Freedom from activity.
Skeletal muscle structures that function as the MECHANORECEPTORS responsible for the stretch or myotactic reflex (REFLEX, STRETCH). They are composed of a bundle of encapsulated SKELETAL MUSCLE FIBERS, i.e., the intrafusal fibers (nuclear bag 1 fibers, nuclear bag 2 fibers, and nuclear chain fibers) innervated by SENSORY NEURONS.
Expenditure of energy during PHYSICAL ACTIVITY. Intensity of exertion may be measured by rate of OXYGEN CONSUMPTION; HEAT produced, or HEART RATE. Perceived exertion, a psychological measure of exertion, is included.
A technique of inputting two-dimensional images into a computer and then enhancing or analyzing the imagery into a form that is more useful to the human observer.
Theoretical representations that simulate the behavior or activity of chemical processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment.
An inhibitor of nitric oxide synthetase which has been shown to prevent glutamate toxicity. Nitroarginine has been experimentally tested for its ability to prevent ammonia toxicity and ammonia-induced alterations in brain energy and ammonia metabolites. (Neurochem Res 1995:200(4):451-6)
An eleven-amino acid neurotransmitter that appears in both the central and peripheral nervous systems. It is involved in transmission of PAIN, causes rapid contractions of the gastrointestinal smooth muscle, and modulates inflammatory and immune responses.
Specific languages used to prepare computer programs.
An organ of digestion situated in the left upper quadrant of the abdomen between the termination of the ESOPHAGUS and the beginning of the DUODENUM.
Graphs representing sets of measurable, non-covalent physical contacts with specific PROTEINS in living organisms or in cells.
Cell surface proteins that bind ENDOTHELINS with high affinity and trigger intracellular changes which influence the behavior of cells.
The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object.
A family of biologically active peptides sharing a common conserved C-terminal sequence, -Phe-X-Gly-Leu-Met-NH2, where X is either an aromatic or a branched aliphatic amino acid. Members of this family have been found in mammals, amphibians, and mollusks. Tachykinins have diverse pharmacological actions in the central nervous system and the cardiovascular, genitourinary, respiratory, and gastrointestinal systems, as well as in glandular tissues. This diversity of activity is due to the existence of three or more subtypes of tachykinin receptors.
Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.
A stochastic process such that the conditional probability distribution for a state at any future instant, given the present state, is unaffected by any additional knowledge of the past history of the system.
The genetic complement of an organism, including all of its GENES, as represented in its DNA, or in some cases, its RNA.
Overlapping of cloned or sequenced DNA to construct a continuous region of a gene, chromosome or genome.
Neural tracts connecting one part of the nervous system with another.
A free radical gas produced endogenously by a variety of mammalian cells, synthesized from ARGININE by NITRIC OXIDE SYNTHASE. Nitric oxide is one of the ENDOTHELIUM-DEPENDENT RELAXING FACTORS released by the vascular endothelium and mediates VASODILATION. It also inhibits platelet aggregation, induces disaggregation of aggregated platelets, and inhibits platelet adhesion to the vascular endothelium. Nitric oxide activates cytosolic GUANYLATE CYCLASE and thus elevates intracellular levels of CYCLIC GMP.
Drugs that bind to but do not activate serotonin receptors, thereby blocking the actions of serotonin or SEROTONIN RECEPTOR AGONISTS.
Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)
Information application based on a variety of coding methods to minimize the amount of data to be stored, retrieved, or transmitted. Data compression can be applied to various forms of data, such as images and signals. It is used to reduce costs and increase efficiency in the maintenance of large volumes of data.
Venoms from SNAKES of the viperid family. They tend to be less toxic than elapid or hydrophid venoms and act mainly on the vascular system, interfering with coagulation and capillary membrane integrity and are highly cytotoxic. They contain large amounts of several enzymes, other factors, and some toxins.
The protein complement of an organism coded for by its genome.
One of the two major pharmacological subdivisions of adrenergic receptors that were originally defined by the relative potencies of various adrenergic compounds. The alpha receptors were initially described as excitatory receptors that post-junctionally stimulate SMOOTH MUSCLE contraction. However, further analysis has revealed a more complex picture involving several alpha receptor subtypes and their involvement in feedback regulation.
The region between the sharp indentation at the lower third of the STOMACH (incisura angularis) and the junction of the PYLORUS with the DUODENUM. Pyloric antral glands contain mucus-secreting cells and gastrin-secreting endocrine cells (G CELLS).
Theoretical representations that simulate the behavior or activity of the neurological system, processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment.
The larger air passages of the lungs arising from the terminal bifurcation of the TRACHEA. They include the largest two primary bronchi which branch out into secondary bronchi, and tertiary bronchi which extend into BRONCHIOLES and PULMONARY ALVEOLI.
The deductive study of shape, quantity, and dependence. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.
A phosphoprotein phosphatase that is specific for MYOSIN LIGHT CHAINS. It is composed of three subunits, which include a catalytic subunit, a myosin binding subunit, and a third subunit of unknown function.
A subclass of muscarinic receptor that mediates cholinergic-induced contraction in a variety of SMOOTH MUSCLES.
A nonapeptide hormone released from the neurohypophysis (PITUITARY GLAND, POSTERIOR). It differs from VASOPRESSIN by two amino acids at residues 3 and 8. Oxytocin acts on SMOOTH MUSCLE CELLS, such as causing UTERINE CONTRACTIONS and MILK EJECTION.
Peptides whose amino and carboxy ends are linked together with a peptide bond forming a circular chain. Some of them are ANTI-INFECTIVE AGENTS. Some of them are biosynthesized non-ribosomally (PEPTIDE BIOSYNTHESIS, NON-RIBOSOMAL).
The study of the generation and behavior of electrical charges in living organisms particularly the nervous system and the effects of electricity on living organisms.
The chemical reactions that occur within the cells, tissues, or an organism. These processes include both the biosynthesis (ANABOLISM) and the breakdown (CATABOLISM) of organic materials utilized by the living organism.
A type of cardiac arrhythmia with premature contractions of the HEART VENTRICLES. It is characterized by the premature QRS complex on ECG that is of abnormal shape and great duration (generally >129 msec). It is the most common form of all cardiac arrhythmias. Premature ventricular complexes have no clinical significance except in concurrence with heart diseases.
The rate dynamics in chemical or physical systems.
A potent calcium channel blockader with marked vasodilator action. It has antihypertensive properties and is effective in the treatment of angina and coronary spasms without showing cardiodepressant effects. It has also been used in the treatment of asthma and enhances the action of specific antineoplastic agents.
Long-lasting voltage-gated CALCIUM CHANNELS found in both excitable and nonexcitable tissue. They are responsible for normal myocardial and vascular smooth muscle contractility. Five subunits (alpha-1, alpha-2, beta, gamma, and delta) make up the L-type channel. The alpha-1 subunit is the binding site for calcium-based antagonists. Dihydropyridine-based calcium antagonists are used as markers for these binding sites.
Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.
A powerful vasodilator used in emergencies to lower blood pressure or to improve cardiac function. It is also an indicator for free sulfhydryl groups in proteins.
A monosynaptic reflex elicited by stimulating a nerve, particularly the tibial nerve, with an electric shock.
An endogenous substance found mainly in skeletal muscle of vertebrates. It has been tried in the treatment of cardiac disorders and has been added to cardioplegic solutions. (Reynolds JEF(Ed): Martindale: The Extra Pharmacopoeia (electronic version). Micromedex, Inc, Englewood, CO, 1996)
The analysis of a chemical substance by inserting a sample into a carrier stream of reagent using a sample injection valve that propels the sample downstream where mixing occurs in a coiled tube, then passes into a flow-through detector and a recorder or other data handling device.
A region of the lower extremity immediately surrounding and including the KNEE JOINT.
Discharge of URINE, liquid waste processed by the KIDNEY, from the body.
The musculofibrous partition that separates the THORACIC CAVITY from the ABDOMINAL CAVITY. Contraction of the diaphragm increases the volume of the thoracic cavity aiding INHALATION.
A specified list of terms with a fixed and unalterable meaning, and from which a selection is made when CATALOGING; ABSTRACTING AND INDEXING; or searching BOOKS; JOURNALS AS TOPIC; and other documents. The control is intended to avoid the scattering of related subjects under different headings (SUBJECT HEADINGS). The list may be altered or extended only by the publisher or issuing agency. (From Harrod's Librarians' Glossary, 7th ed, p163)
Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).
A benzothiazepine derivative with vasodilating action due to its antagonism of the actions of CALCIUM ion on membrane functions.
A specific subtype of muscarinic receptor found in the lower BRAIN, the HEART and in SMOOTH MUSCLE-containing organs. Although present in smooth muscle the M2 muscarinic receptor appears not to be involved in contractile responses.
Journal of Graph Theory. 12 (1): 29-44. doi:10.1002/jgt.3190120105. Paul A. Catlin (1988). "Contractions of graphs with no ... doi:10.1016/S0012-365X(95)00149-Q. Paul A. Catlin (1996). "The reduction of graph families closed under contraction". Discrete ... Catlin, Paul A.; Chen, Zhi-Hong (1991). "Chapter 7: Non-super-Eulerian graphs with large size" (PDF). In Y. Alavi (ed.). Graph ... Paul A. Catlin (1989). "Double cycle covers and the petersen graph". Journal of Graph Theory. 13 (4): 465-483. doi:10.1002/jgt. ...
2. The Hadwiger number of a graph is the order of the largest complete minor of the graph. It is also called the contraction ... The block graph of any graph is a block graph, and every block graph may be constructed as the block graph of a graph.. bond. A ... 1. A universal graph is a graph that contains as subgraphs all graphs in a given family of graphs, or all graphs of a given ... a directed acyclic graph whose underlying undirected graph is a tree.. power. 1. A graph power Gk of a graph G is another graph ...
"Trouble at for-profit colleges in 5 graphs: Here's what's happening". USA TODAY. "For-profit online students drawn by ... "Here's Why Purdue University Is Buying A Massive For-Profit College For $1". Buzzfeed. Retrieved January 1, 2018. Hensley- ...
At the end of a week there's a line graph showing emotional peaks and valleys." "From Management Consulting to Psychiatric ... In Lifetrack therapy the therapist interprets the graphs of the patient's subjective self-rating in weekly therapy sessions on ...
In a graph G = ( V , E ) {\displaystyle G=(V,E)} with n = , V , {\displaystyle n=,V,} vertices, the contraction algorithm ... The basic idea is to perform the contraction procedure until the graph reaches t {\displaystyle t} vertices. procedure contract ... that this contraction procedure avoids a specific cut C {\displaystyle C} in an n {\displaystyle n} -vertex graph is p n , t ... in an undirected graph G = ( V , E ) {\displaystyle G=(V,E)} . Informally speaking, the contraction of an edge merges the nodes ...
Figure 1 gives an example of contraction of vertex A and B. After contraction, the resulting graph may have parallel edges, but ... Consider the inner loop and let Gj denote the graph after j edge contractions, where j ∈ {0,1,...,n − 3}. Gj has n − j vertices ... Recall that the contraction of two nodes, u and v, in a (multi-)graph yields a new node u ' with edges that are the union of ... So the min cut in a disconnected graph is 0. Now, assume G is connected. Let V=L∪R be the partition of V induced by C : C={ {u, ...
They rely on efficient external storage sorting algorithms and on graph contraction techniques for reducing the graph's size ... while maintaining the invariant that the MST of the contracted graph plus T gives the MST for the graph before contraction. In ... 1 and solving the MST problem on the new graph. A path in the maximum spanning tree is the widest path in the graph between its ... it identifies a forest F consisting of the minimum-weight edge incident to each vertex in the graph G, then forms the graph G 1 ...
Matt Essert (January 12, 2014). "Here's the Cool Graph Reddit Fans Should Show Haters Who Still Claim It's Not a Legit News ...
... invariant is a type of graph invariant that satisfies a generalized deletion-contraction formula. Any evaluation of the Tutte ... A graph function f is TG-invariant if: f ( G ) = { c , V ( G ) , if null x f ( G / e ) if e is a loop y f ( G ∖ e ) if e is a ... Goodall, Andrew (2008). "Graph polynomials and Tutte-Grothendieck invariants: an application of elementary finite Fourier ... For more details see: Tutte, W. T. (2008). "A ring in graph theory". Mathematical Proceedings of the Cambridge Philosophical ...
The edge contraction G / u v {\displaystyle G/uv} of graph G {\displaystyle G} is the graph obtained by merging the vertices u ... It is also the most general graph invariant that can be defined by a deletion-contraction recurrence. Several textbooks about ... His original terminology for graph invariants that satisfy the deletion-contraction recursion was W-function, and V-function if ... He showed that if G is a plane graph and G → m {\displaystyle {\vec {G}}_{m}} is its directed medial graph, then T G ( x , x ...
Figure 1 gives an example of contraction of vertex A and B. After contraction, the resulting graph may have parallel edges, but ... Recall that the contraction of two nodes, u and v, in a (multi-)graph yields a new node u ' with edges that are the union of ... Consider the inner loop and let Gj denote the graph after j edge contractions, where j ∈ {0, 1, …, n − 3}. Gj has n − j ... Input: A graph G(V,E) Output: A cut partitioning the vertices into L and R, with the minimum number of edges between L and R. ...
It employs compile-time graph search optimisations to find the optimal contraction sequence between arbitrary number of tensors ... ITensor features automatic contraction of matching tensor indices. It is written in C++ and has higher-level features for ... It offers Einstein notation like syntax and optimizes the contraction order of any network of tensors at runtime so that ... OpenMP execution of tensor contractions/functions. TiledArray is a scalable, block-sparse tensor library that is designed to ...
... is built with a multi-model graph/document engine. OrientDB feels like a graph database first, but there's no reason ... Graph structured data model: native management of graphs. Fully compliant with the Apache TinkerPop Gremlin (previously known ... OrientDB is the third most popular graph database according to the DB-Engines graph database ranking, as of September 2017. The ... It is a Multi-model database, supporting graph, document, key/value, and object models, but the relationships are managed as in ...
Typical ECGs measured the electrical currents generated from heart contractions, and displayed them as a two-dimensional graph ...
It achieved faster speeds for most index contractions with an approach based on the graph isomorphism problem rather than ...
Edge contraction or vertex contraction, graph operations used in graph theory. *Tensor contraction, an operation on one or more ... Wound contraction, a stage in wound healing. Other uses[edit]. *Contraction (economics), a general slowdown in economic ... Contraction (logic), a structural rule in proof theory. Medicine[edit]. *Muscle contraction, the physiological condition of a ... Poetic contraction, omission of letters for poetic reasons. *Elision, omission of sounds *Syncope (phonology), omission of ...
Graph database), a graph database Contraction of decimal exponent, for use with values on a logarithmic scale Especially ...
... s are closely related to graph minors, and the restriction and contraction operations by which they are formed ... The graph structure theorem is an important tool in the theory of graph minors, according to which the graphs in any minor- ... One of the important components of graph minor theory is the existence of an algorithm for testing whether a graph H is a minor ... for graphs that are not trees, the branchwidth of the graph is equal to the branchwidth of its associated graphic matroid. The ...
They rely on efficient external storage sorting algorithms and on graph contraction techniques for reducing the graph's size ... while maintaining the invariant that the MST of the contracted graph plus T gives the MST for the graph before contraction.[2] ... Dense graphs[edit]. If the graph is dense (i.e. m/n ≥ log log log n), then a deterministic algorithm by Fredman and Tarjan ... MST on complete graphs[edit]. Alan M. Frieze showed that given a complete graph on n vertices, with edge weights that are ...
One such algorithm is contraction hierarchies. A common example of a graph-based pathfinding algorithm is Dijkstra's algorithm ... Although graph searching methods such as a breadth-first search would find a route if given enough time, other methods, which " ... If a valid path was found in the high-level-graph the next step is to plan the path within each cluster. The submap has 300x200 ... Two primary problems of pathfinding are (1) to find a path between two nodes in a graph; and (2) the shortest path problem-to ...
"Graph Convolutional Networks are Bringing Emotion Recognition Closer to Machines. Here's how". Tech Times. 2019-11-26. ... Popular supervised methods include using or combining pre-defined features, recurrent neural networks (DialogueRNN), graph ... Ghosal, Deepanway; Majumder, Navonil; Soujanya, Poria (Aug 2019). DialogueGCN: A Graph Convolutional Neural Network for Emotion ...
"Remember Your Old Graphing Calculator? It Still Costs a Fortune - Here's Why". Mic (media company). Retrieved 2 October 2015. ... including function graphing, polar/parametric/sequence graphing modes, statistics, trigonometric, and algebraic functions, ... TI-BASIC is the built-in language for TI-83 series calculators, as well as many other TI graphing calculators. TI-BASIC is a ... Released in 1996, it was one of the most popular graphing calculators for students. In addition to the functions present on ...
... is a speed-up method optimized to exploit properties of graphs representing road networks. The speed-up ... In computer science, the method of contraction hierarchies is a speed-up technique for finding the shortest-path in a graph. ... of the input graph have to be contracted in a way which minimizes the number of edges added to the graph by contractions. As ... but they are provided with the graph as input and are able to assign importance to vertices using heuristics. Contraction ...
The order in which a sequence of such contractions and deletions is performed on G does not affect the resulting graph H. Graph ... 3-free graphs are exactly the 2-clique-sums of planar graphs and K5. A graph H is called a topological minor of a graph G if a ... which produces a bipartite graph whenever the starting graph is bipartite. A graph H is a bipartite minor of another graph G ... These graphs are forbidden minors for F: a graph belongs to F if and only if it does not contain as a minor any graph in X. ...
Asano contractions have also been used to study polynomials in graph theory. Let Φ ( z 1 , z 2 , … , z n ) {\displaystyle \Phi ... Since the graph-counting polynomial was obtained from these by Asano contractions, most of the remaining work is computing ... In complex analysis, a discipline in mathematics, and in statistical physics, the Asano contraction or Asano-Ruelle contraction ... Asano contractions can be used in statistical physics to gain information about a system from its subsystems. For example, ...
... an edge contraction operation may result in a graph with multiple edges even if the original graph was a simple graph. However ... In graph theory, an edge contraction is an operation which removes an edge from a graph while simultaneously merging the two ... so that edge contractions performed on simple graphs always produce simple graphs. Let G = ( V , E ) {\displaystyle G=(V,E)} be ... Edge contraction is used in the recursive formula for the number of spanning trees of an arbitrary connected graph, and in the ...
Skowrońska, Mirosława (1985), "The pancyclicity of Halin graphs and their exterior contractions", in Alspach, Brian R.; Godsil ... In the mathematical study of graph theory, a pancyclic graph is a directed graph or undirected graph that contains cycles of ... A maximal planar graph is a planar graph in which all faces, even the outer face, are triangles. A maximal planar graph is node ... Pancyclic graphs are a generalization of Hamiltonian graphs, graphs which have a cycle of the maximum possible length. An n- ...
... this is called edge contraction. The condensation of a directed graph is the quotient graph where the strongly connected ... In graph theory, a quotient graph Q of a graph G is a graph whose vertices are blocks of a partition of the vertices of G and ... a quotient graph is a quotient object in the category of graphs. The category of graphs is concretizable - mapping a graph to ... A graph is trivially a quotient graph of itself (each block of the partition is a single vertex), and the graph consisting of a ...
2. The Hadwiger number of a graph is the order of the largest complete minor of the graph. It is also called the contraction ... The block graph of any graph is a forest.. 3. The block-cut (or block-cutpoint) graph of a graph G is a bipartite graph where ... A forest is a block graph; so in particular the block graph of any graph is a block graph, and every block graph may be ... 1. A universal graph is a graph that contains as subgraphs all graphs in a given family of graphs, or all graphs of a given ...
Contraction of a contributive node and a distributive node. Strictly dependent & strictly independent node. A strictly ... Graph reduction. Removal of one or more nodes from a graph using graph transformations. Residual node. In any contemplated ... A comparison of the utility of the Coates flow graph and the Mason flow graph. M. L. Edwards: S-parameters, signal flow graphs ... it is always possible to reduce a graph of any order... [After reduction] the final graph will be a cascade graph in which the ...
Duration- the amount of time from the start of a contraction to the end of the same contraction. Intensity- a measure of how ... With an IUPC, this is determined by assessing actual pressures as graphed on the paper. Resting Tone- a measure of how relaxed ... Frequency- the amount of time between the start of one contraction to the start of the next contraction. ... the amount of time between the end of one contraction to the beginning of the next contraction. The NICHD nomenclature defines ...
"World Population History Graph" World population graph 10000 BC - AD 1950.. *"Symptoms of The Global Demographic Decline". ... "there's a 70 percent probability the world population will not stabilize this century. Population, which had sort of fallen off ... Population growth graph generated with data supplied by World Bank, via Google ... PopulationLabs.com - World population map and graph. *PopulationData.net - Information and maps about populations around the ...
The graph depicts an increase (that is, right-shift) in demand from D1 to D2 along with the consequent increase in price and ... a rise in price leads to an expansion in supply and a fall in price leads to a contraction in supply. Here as well, the ... In the simplest case an economy can produce just two goods (say "guns" and "butter"). The PPF is a table or graph (as at the ... Demand is often represented by a table or a graph showing price and quantity demanded (as in the figure). Demand theory ...
This graph shows that recidivism is much more likely within the first six months after they are released. The longer the ... "Machine Bias: There's Software Used Across the Country to Predict Future Criminals. And it's Biased Against Blacks" ... In 2001, the Florida Department of Corrections created a graph showing the general recidivism rate of all offenders released ...
Specific graphs of reconstructed CO2 levels over the past ~550, 65, and 5 million years can be seen at File:Phanerozoic Carbon ... "Here's What the Last Common Ancestor of Apes and Humans Looked Like".. ...
... there's around a 50% chance that you will fall into a different personality category compared to the first time you took the ... which will usually include a bar graph and number (Preference Clarity Index) to show how clear they were about each preference ...
And there's no evidence for one, no reason to believe that there is one, and so I don't believe that there is one. And I think ... He worked on problems in combinatorics, graph theory, number theory, classical analysis, approximation theory, set theory, and ... "Stephen Hawking says there's no creator God; the twitterverse reacts", The Washington Post, September 3, 2010, Retrieved April ... And, among other things, also deciding there's no free will, but not in a remotely religious context, and deciding all of this ...
... resulting in graphs that do not show the correlations they claim to show.[109] Despite Svensmark's assertions, galactic cosmic ... "Cosmic ray particle shower? There's an app for that". Ars Technica ...
There's No Precedent in American History.'". The New York Times.. .mw-parser-output cite.citation{font-style:inherit}.mw-parser ... Their graph is reproduced below as Figure 1: German Population Enrolled in Health Insurance (%) 1885-1995.. ...
In the CDC graph below, much of the apparent sharp drop in abortions in 1995 is due to the fact that fewer states reported ... "Here's how many abortion clinics are in each state". Business Insider. Retrieved 2017-07-21 ...
... as shown in Manufacturing process of EV batteries graph in grey, green and orange color respectively. This shown process does ... "Here's How Electric Cars Will Cause the Next Oil Crisis". Bloomberg News. Retrieved 26 February 2016.. See embedded video. ... "Here's How Electric Cars Will Cause the Next Oil Crisis" (Press release). London and New York: PR Newswire. Retrieved 26 ...
d-Block contractionEdit. Main article: d-block contraction. The d-block contraction is less pronounced than the lanthanide ... A graph comparing the atomic radius of elements with atomic numbers 1-100. Accuracy of ±5 pm. ... Lanthanide contractionEdit. Main article: Lanthanide contraction. The electrons in the 4f-subshell, which is progressively ... Due to lanthanide contraction, the 5 following observations can be drawn: *The size of Ln3+ ions regularly decreases with ...
Consumer Reports magazine says, "If [your owner's manual] says to use regular fuel, do so-there's no advantage to a higher ... Graph of inflation-corrected historic prices, 1970-2005. Highest in 2005. *The Low-Down on High Octane Gasoline ...
... bladder contraction), neurology (Neurovascular coupling) and more. ... "Hemoglobin saturation graph". altitude.org.. *^ King, Michael W. "The Medical Biochemistry Page - Hemoglobin".. ...
tensor contraction. *transpose (2nd-order tensors). *raising and lowering indices. *Hodge star operator ...
There's now many bots waiting for an official flag and it should be someone who cares about such requests. Also elections need ... We published some graphs showing the effect of the event on the Translathon page. We thank the translators for participating ... Important note : there's many contributors who speak english or french and few who speak wolof. As a consequence, the welcome ... We published some graphs showing the effect of the event on the Translathon page. We thank the translators for participating ...
The Delaunay triangulation is a tessellation that is the dual graph of a Voronoi tessellation. Delaunay triangulations are ... Basaltic lava flows often display columnar jointing as a result of contraction forces causing cracks as the lava cools. The ...
"There's been a boom in ghost hunting ever since the Internet took off." Investigators, equipped with electronic gear-like EMF ... A wave pattern of white noise plotted on a graph. Part of a series of articles on the paranormal. ...
"Don't know birdsong? There's a (great) app for that". Telegraph.co.uk. Retrieved 2016-06-08.. ... "Sona-Graph" in 1948. This was adopted by early researchers[93] including C.E.G.Bailey who demonstrated its use for studying ... which then controls muscular contractions of the syrinx.[53][62] ...
"FRED Graph - FRED - St. Louis Fed". fred.stlouisfed.org. Retrieved 9 September 2018.. ... If we want to ensure it's there beyond that, there's an easy fix - just lift the ceiling on income subject to Social Security ... A graph of the US CPI from 1913 (in blue), and its percentage annual change (in red) ...
The GO ontology is structured as a directed acyclic graph, and each term has defined relationships to one or more other terms ... GO term: heart contraction ; GO:0060047 (biological process). Evidence code: Inferred from Mutant Phenotype (IMP). Reference: . ... It is implemented in Java, and uses a graph-oriented approach to display and edit ontologies. OBO-Edit includes a comprehensive ...
A graph of the amount of energy inside the oven per unit volume and per unit frequency interval plotted versus frequency, is ... Energy generated internally by a planet itself due to radioactive decay, tidal heating, and adiabatic contraction due by ... Notice that there are two factors responsible for the shape of the graph. Firstly, longer wavelengths have a larger number of ... The black-body radiation graph is also compared with the classical model of Rayleigh and Jeans. ...
If you think there's an important detail that's missing, you can specify it; but we're probably not going to add a lot more to ... There's an entire article on the capitol rioting, but we shouldn't try to replicate it here, nor directly link to it. There ... I've removed the sentence; there's no citation and certainly no consensus it's appropriate in the lede. 力 (power~enwiki, π, ν) ... If there's something to do to warn people from making similar changes and that doesn't treat the election as officially ...
... enabling them to graph and explore its dynamics on a computer.[5][7] The graph was fractal, it exhibited a pattern in which a ... Fischer, Roland; Hill, Richard; Thatcher, Karen; Scheib, James (1970). "Psilocybin-Induced contraction of nearby visual space ... He was able to graph the data and this became the Novelty Time Wave.[5] ... and attempted to find the best-fit placement when matching the graph to the data field of human history.[7] The last harmonic ...
Arrows are shown in the opposite direction compared to typical dependency graphs, i.e. a. →. b. {\displaystyle a\rightarrow b} ... Room temperature can be measured by means of expansion and contraction of a liquid in a thermometer but high temperatures are ...
There's no need to entirely judge articles by their current state when proposing them for deletion, indeed the album could have ... Got hung up over on the commons trying to make sense out of diffs between graphs, diagrams, illustrations, etchings, engravings ... I appreciate your dilligence on the issue of the Carlos Inzillo photo and, as there's no agreement as to how to interpret the ... To fix this, there's now a script that runs on the Toolserver every hour to generate the results. ...
Dips in this graph show consonant intervals such as 4:5 and 2:3. Other components not modeled by this theory include critical ... at least not by contraction) and correctly reproducing the mathematical ratios of the harmonic series are truly non-dissonant. ...
See Graph: "Top 10 U.S. Plug-in cars (cumulative sales)" In January 209 the Tesla Model 3 (148,046) overtook the Model S ( ... "Here's Why the Tesla Model 3 Is the Coolest Car of 2017". AutoTrader.com. Archived from the original on November 7, 2017 ... See Graph: "Top 10 U.S. Plug-in cars (cumulative sales)" and "U.S. Plug-in Car Sales (cumulative)" ...
Popular vote by province, with graphs indicating the number of seats won. As this is an FPTP election, seat totals are not ... "Despite Election Rhetoric, Seven in Ten (68%) Canadians Say There's 'No Need for an Election', Majority (51%) Says County ...
A graph-based algorithm for the multi-objective optimization of gene regulatory networks European Journal of Operational ... Python implementation of the Graph Contraction Algorithm described in Nghe P, Mulder B & Tans SJ, ... Abstract : Python implementation of the Graph Contraction Algorithm described in Nghe P, Mulder B & Tans SJ, "A graph-based ... Pareto Graph Contraction Algorithm Philippe Nghe 1, 2 Bela M. Mulder 3 Details. ...
We then perform iterative skeletonization over the nodes of the skeleton graph using coupled processes of graph contraction and ... Jiang W., Xu K., Cheng ZQ., Martin R.R., Dang G. (2012) Curve Skeleton Extraction by Graph Contraction. In: Hu SM., Martin R.R ... In the contraction step, the skeleton graph is simplified and regularized with surface clustering: mesh vertices are clustered ... while the positions of nodes in the skeleton graph are updated at the same time. Eventually, the skeleton graph is ...
Subgraphs, contractions, and graph minors[edit , edit source]. Subgraphs[edit , edit source]. Given a graph G. =. (. V. ,. E. ) ... Graph minors[edit , edit source]. Given a graph G. {\displaystyle G}. , and another graph G. ′. {\displaystyle G}. , G. ′. {\ ... of a graph vertex v. {\displaystyle v}. in a connected graph G. {\displaystyle G}. is the maximum graph distance between v. {\ ... Complete Bipartite Graph[edit , edit source]. The complete bipartite graph K. m. ,. n. {\displaystyle K_{m,n}}. is the graph ...
Fear over freedom: Heres what the doom-laded government graphs dont show us ... And yet theres no multimillion pound investigation available for that. So I resent the idea that this seems to once more ...
Fear over freedom: Heres what the doom-laden government graphs didnt show us ... Theres none of the challenging bitterness that comes with learning to like watercress. In short, sticking with iceberg lettuce ... who wants to eat the worlds blandest form of green veg in February when theres curly kale and Swiss chard as vibrant ...
Heres a dumb graph about Steve Jobs stylus hate and Apple Pencil releases * Callum Booth ... In the meantime, heres a few links to help you manage the misinformation as the disease hits its peak:. The Center for Disease ... Heres whats going on with the various vaccine trials… not as much as wed hope at this point. (The Motley Fool). ...
Heres a dumb graph about Steve Jobs stylus hate and Apple Pencil releases * Callum Booth ...
Heres that graph again:. That graph, though, is just a correlation: thats not good enough for many economists. But a new ...
But theres a big problem: This isnt happening. Or at least, its not happening fast enough. A recent peer-reviewed study in ... In theory, theres a simple solution here: The worlds farmers will just need to get better at squeezing more productivity out ... But in some parts of the world, theres a more worrisome prospect - farmers are doing everything they can to squeeze more ... Heres the key graph:. The study takes a careful look at historical improvements in crop yields for corn, rice, wheat and ...
... theres a reason you might be thinking that. This is a graph of the percentage of the population that is employed. The exact ... Heres a graph to show why it feels like this is a lousy recovery. If it feels like the recovery that started over 3 years ago ... This is a graph of the percentage of the population that is employed. The exact description is civilian employment as a percent ... Louis Fed has hundreds of these kinds of graphs readily available? Im feeling like a kid in a candy store. So many yummy ...
Why theres an overdose epidemic - in two graphs By Hawre Jalal and Donald S. Burke ... Theres going to be a lot of people taking medicines that They dont even need. Sure everybody should eat a healthy diet. But ... Why theres an overdose epidemic - in two graphs Why theres an overdose epidemic - in two graphs ...
Move Over ROC Curve, Theres a Better Graph for Population Health. A new graph to communicate model…. ...
Theres a disturbing trend in Appalachian country, a distinctive region in the eastern United States, perhaps best known for ... Death Graph: Heres Whats Killing Americans at Every Age. Next Post. Hawaii Sails to Top While West Virginia Struggles. ... Theres a reason why painkillers are called hillbilly heroin. Ive no doubt the author has heard the term, but opted against ... Theres a disturbing trend in Appalachian country, a distinctive region in the eastern United States, perhaps best known for ...
By the way, what program do you use to make those graphs...? ... B Time dilation and length contraction question Jan 28, 2017. B ... Incidentally, this page has a good spacetime diagram for length contraction:. Again note the key point that length in either ... Couple basic time dilation / length contraction questions Nov 22, 2014. Special Relativity Time Dilation Santa question Nov 10 ... but when he got to the length contraction part, he used the formula above instead.. Ive attached an image that I made in ...
Lecture 6: Graph contraction, star contraction, MST algorithms. Reading: CLRS 12, 13. Lecture Notes. *Lecture 7: (Stochastic) ... Topics include distributed and parallel algorithms for: Optimization, Numerical Linear Algebra, Machine Learning, Graph ...
Heres the graph:,/p,,p,,/p,,p,,a href=http://blogs.spectator.co.uk/files/2014/09/Screen-Shot-2014-09-29-at-13.15.43.png,,img ... Pursuit of this crude measure of fairness (the so-called decile graph) actually strengthened the poverty trap, reducing the ... heres the graph for earnings. Not much of a recovery.,/p,,p,,/p,,p,,a href=http://blogs.spectator.co.uk/files/2014/09/Screen- ... Heres the breakdown.,/span,,/p,,p,,/p,,p,,a href=http://blogs.spectator.co.uk/files/2014/09/Screen-Shot-2014-09-29-at-12.52. ...
Edge contraction or vertex contraction, graph operations used in graph theory. *Tensor contraction, an operation on one or more ... Wound contraction, a stage in wound healing. Other uses[edit]. *Contraction (economics), a general slowdown in economic ... Contraction (logic), a structural rule in proof theory. Medicine[edit]. *Muscle contraction, the physiological condition of a ... Poetic contraction, omission of letters for poetic reasons. *Elision, omission of sounds *Syncope (phonology), omission of ...
So Fill, and theres some shapes, and heres my bar graph. So what I want to do is actually go to this first one here, go to ... Theres Daniel, theres Greg, theres Malcolm, all pulled from the database and automatically make this long document for us so ... Now, theres going to be a lot more tools we can to learn, but also theres a lot more creativity that goes into it. So if you ... Well, the last thing that you might want to do with your graph is under this option, says Chart Styles, theres some cool ...
Heres the nut graph on Massachusetts:. And health-care costs have continued to grow rapidly. According to a Rand Corporation ... Theres no way to implement the sort of technocratic change that reformers envision; the politicians will keep sticking their ... Heres what youll see: between 1991 and 2004, Massachusetts had a rate of healthcare inflation that was just slightly above ...
Theres some graphs and *** 3.5 rounded up to 4 Stars ***. Let me start by saying I am not a fan of self help books that feel ... Theres some graphs and evidence based practice throughout and it was easy to understand; just straight up helpful. I related a ... Theres nothing eye-opening in this book. None of the promised helpful advice. Not a recommendation from me. ...more ... Theres no groundbreaking knowledge conveyed here -- we all know exercise is good for us and so is rest -- but the context the ...
Sure enough, the graph above shows lower brain glycogen levels right after exercise, which recover and are supercompensated 3 ... Heres the key graph:. The brain is pretty greedy - under normal circumstances, it uses about 20 percent of the glucose (i.e. ...
Contraction Hierarchies on Grid Graphs Sabine Storandt. Pages 236-247 * - Mastering Left and Right - Different Approaches to a ...
Heres the graph from their 2007 survey:. (The grey and light-green lines represent year-to-year growth in overall inflation ... Unfortunately, 2007 was the last year that KFF/HRET included that graph in their annual survey. Had they included that graph ... For most of this surveys history, it included a very useful graph of the average growth rate of employer-sponsored insurance ...
Heres a most telling graph which emphasizes the most basic reason this hysteria is absurd . By Beers law , changes in CO2s ... Aha! Heres where you provide an explanation for your "temperature moderating mechanism, or thermostat". Theres more about the ... Unless theres a conspiracy of some kind? And they mustve gotten to the radio-isotope dating people as well! Where will it ... Heres how I describe their actions on my Web site:. The Denialists are another matter entirely. They encourage and exploit ...
Heres one of the graphs:. This paper is a work in progress, but I still thought it was noteworthy given all the interest in ... Heres the thing about ad blockers.... Washington Monthly relies on revenue generated from ads... ...
... right side of graph). Percent contraction over 40 h was determined; data are presented as means ± SE. D: collagen gels were ... left side of graph) and allowed to contract for 40 h. Percent contraction was determined at 40 h; data are presented as means ... Hyaluronan-induced ASMC contraction is mediated by PC. A: to determine the effect of high-molecular weight hyaluronan (HMW HA) ... Gels contracted over 40 h, and gel areas were measured at time 0 and at 40 h to calculate percent contraction over time. Data ...
Heres the graph. Look at graph (b):. http://www.physics.sfsu.edu/~bland/courses/490/labs/b4/4diag.html [Broken] ... Now, draw the Feynman graph of this, rotate it by 90 degrees, and you get the graph of Thompson scattering (remember e+ changes ... in the old graph, so its off-shell in the new graph.. See: e- and photon form a virtual Z WRONG! - see below, but this is not ... Heres a great link to the absorption/emission spectra of all the elements known to man:. http://javalab.uoregon.edu/dcaley/ ...
Heres the graph:. Figure 1. Surface Temperature Observational Data and Model Hindcasts. Colored boxes show the range from the ... Theres a chart that plots tree ring data and solar on this page (but it stops too short) : "An experiment onboard shuttle ... Heres what I find interesting:. - The Moberg curve (blue curve) follows the Antarctic curve (red) pretty closely, but it ... Heres a "cold" Sun story from NASA:. Scientists using measurements from NASAs Solar Radiation and Climate Experiment (SORCE) ...
Heres a collection of maps, apps, graphs and other projects from The Gazette data team.. ...
We study the computational complexity of graph planarization via edge contraction. The problem Contract asks whether there ... vant Hof, P., Kamiński, M., Paulusma, D., Szeider, S., Thilikos, D.M.: On graph contractions and induced minors. Discrete ... Planar Graph Hexagonal Grid Incidence Graph Pendant Edge Topological Embedding The first author acknowledges support of Special ... We study the computational complexity of graph planarization via edge contraction. The problem Contract asks whether there ...
  • And it remains NP -complete when generalized for a fixed genus (instead of planar graphs). (springer.com)
  • Extract planar graphs and hyper-graphs of co-occurrence relationships, and tracks contextual statistics for each relationship. (microsoft.com)
  • The primary topics in this part of the specialization are: asymptotic ('Big-oh') notation, sorting and searching, divide and conquer (master method, integer and matrix multiplication, closest pair), and randomized algorithms (QuickSort, contraction algorithm for min cuts). (coursera.org)
  • graphs, cuts, and the contraction algorithm. (coursera.org)
  • Topics include distributed and parallel algorithms for: Optimization, Numerical Linear Algebra, Machine Learning, Graph analysis, Streaming algorithms, and other problems that are challenging to scale on a commodity cluster. (stanford.edu)
  • Lecture 6: Graph contraction, star contraction, MST algorithms. (stanford.edu)
  • Each vertex has degree two, so this is also a regular graph. (wikibooks.org)
  • V is the vertex set whose elements are the vertices, or nodes of the graph. (wikibooks.org)
  • We study the computational complexity of graph planarization via edge contraction. (springer.com)
  • Courcelle, B.: The monadic second-order logic of graphs III: tree-decompositions, minor and complexity issues. (springer.com)
  • Narrowing the Complexity Gap for Colouring (Cs, Pt)-Free Graphs. (fishpond.com.au)
  • Transitive closure and metric inequality of weighted graphs: detecting protein interaction modules using cliques. (rwth-aachen.de)
  • Before you can draw the graph of an inequality, you need to know its solution. (factmonster.com)
  • To graph this solution, you'll draw an open dot (since the inequality symbol does not contain "or equal to") at -3 and sketch a dark arrow from that dot that extends to the right (since the inequality sign, like an arrowhead, points to the right), as shown in Figure 7.2. (factmonster.com)
  • Graphs without nontrivial collapsible subgraphs" (PDF). (wikipedia.org)
  • We then perform iterative skeletonization over the nodes of the skeleton graph using coupled processes of graph contraction and surface clustering. (springer.com)
  • In the contraction step, the skeleton graph is simplified and regularized with surface clustering: mesh vertices are clustered, while the positions of nodes in the skeleton graph are updated at the same time. (springer.com)
  • So a graph is just, so a graph -- to repeat -- has nodes and edges. (mit.edu)
  • So there's a graph with four nodes. (mit.edu)
  • The Tutte polynomial of a graph or a matroid, named after W. T. Tutte, has the important universal property that essentially any multiplicative graph or network invariant with a deletion and contraction reduction must be an evaluation of it. (hindawi.com)
  • It can be used to make standard 3-lead EKG tracings to record electrical activity in the heart, or to collect surface EMG recordings to study contractions in muscles in your arm, leg or jaw. (vernier.com)
  • Eventually, the skeleton graph is automatically simplified to an approximately-centered curve skeleton. (springer.com)
  • Here's a graph showing temperature going back 65 million years. (envirolink.org)
  • In theory, there's a simple solution here: The world's farmers will just need to get better at squeezing more productivity out of existing farmland. (washingtonpost.com)
  • We assume knowledge of graph theory as in [ 8 ] and matroid theory as in [ 9 ]. (hindawi.com)
  • Paul Allen Catlin ((1948-06-25)June 25, 1948 - (1995-04-20)April 20, 1995) was a mathematician, professor of mathematics and Doctor of Mathematics, known for his valuable contributions to graph theory and number theory. (wikipedia.org)
  • He held a Doctorate in Mathematics degree from Ohio State University, authored over fifty academic papers in number theory and graph theory. (wikipedia.org)
  • Journal of Graph Theory. (wikipedia.org)
  • Graph Theory, Combinatorics, and Applications. (wikipedia.org)
  • As a result, voluntary contractions have a huge amount of variability (especially in untrained subjects), so it may simply be that the effects of nitrate on muscle are too subtle to show up in voluntary contractions. (runnersworld.com)
  • Foster and Rahmstorf tease out and remove the short-term variability due to ENSO, solar cycles and volcanic eruptions and find that after this adjustment all five time series match much more closely than before (see graph). (realclimate.org)
  • What's wrong with Ohio's economy, in 5 graphs Ohio Gov. John Kasich keeps saying we're on the verge of a recession, but economic indicators don't really show that. (cincinnati.com)
  • These graphs also show us what a recession would look like. (cincinnati.com)
  • The graphs really do show what I've imagined the bass guitar signal would typically look like in both time and frequency domains. (talkbass.com)
  • Lecture 12: Graphs, network. (mit.edu)
  • This is a linear graph of the data that was presented differently in a discussion at this post . (nonprofitupdate.info)
  • Here's a collection of maps, apps, graphs and other projects from The Gazette data team. (thegazette.com)
  • here's the data. (newmatilda.com)
  • With just 3-4 simple lines of script, you can load your social media data, extract complex features, and generate a graph among arbitrary features. (microsoft.com)
  • The EKG Sensor is fully supported with LabQuest 2 (version 2.8.5) , a standalone data logger with built-in graphing and analysis software. (vernier.com)
  • Regression, in this context, basically means finding a line-of-best-fit through a series of points which represent data on a graph. (madinamerica.com)
  • There's one chart often used to argue to the contrary, but it's got some serious problems, and ignores most of the data. (skepticalscience.com)
  • Many times, as researchers in Combinatorics, we face the task of computing an evaluation of the Tutte polynomial of a family of graphs or matroids. (hindawi.com)
  • That graph, though, is just a correlation: that's not good enough for many economists. (economist.com)
  • Here's the correlation matrix for my (simulated) Labour and Conservative vote shares. (medium.com)
  • but there's almost no correlation between the Conservative and Labour vote shares. (medium.com)
  • By some estimates, calcium handling eats up 30-50% of the ATP used in muscle contraction, so a change in calcium sensitivity could indeed explain why nitrate makes endurance exercise more efficient. (runnersworld.com)
  • Mechanistically, we demonstrate that the effect of PC on ASMC contraction is, to a small extent, due to their effect on Sonic Hedgehog signaling and, to a larger extent, due to their effect on calcium influx and membrane depolarization. (nih.gov)
  • Restricted Bipartite Graphs: Comparison and Hardness Results. (fishpond.com.au)
  • The results for the three age groups are set out in graph form and are designated Figures 1, 2, and 3. (madinamerica.com)
  • There's a lot more to be done, of course, and merely throwing money at the problem or ordering things from the top down won't work: It takes training and coordination with those who live in villages to obtain such results. (bloggernews.net)
  • Looking at a historical graph of the stock market, the most obvious downturns, such as during the early 1980s and late 2000s, coincide with the sharpest periods of economic contraction. (investopedia.com)
  • A simple undirected graph with three vertices and three edges. (wikibooks.org)
  • E is the edge set whose elements are the edges, or connections between vertices, of the graph. (wikibooks.org)
  • An undirected graph is one in which edges have no orientation. (wikibooks.org)
  • A drawing of a labelled graph on 6 vertices and 7 edges. (wikibooks.org)
  • The problem Contract asks whether there exists a set S of at most k edges that when contracted produces a planar graph. (springer.com)
  • That's shown in the graph (above right), in which the green line traces the declining proportion of atmospheric C13. (hubpages.com)
  • That wouldn't seem to justify your insinuation that there's something untoward about the Foster and Rahmstorf analysis. (realclimate.org)
  • Discussion Graph Tool (DGT) is an easy-to-use analysis tool that provides a domain-specific language extracting co-occurrence relationships from social media and automates the tasks of tracking the context of relationships and other best practices. (microsoft.com)
  • Read more about our tool and using it for deeper contextual analyses in our ICWSM 2014 paper, "Discussion Graphs: Putting Social Media Analysis in Context", by Kıcıman, Counts, Gamon, De Choudhury and Thiesson. (microsoft.com)
  • Here's what you'll see: between 1991 and 2004, Massachusetts had a rate of healthcare inflation that was just slightly above the US average, though the gap widened somewhat towards the end of that period. (theatlantic.com)
  • Here's what's going on with the various vaccine trials… not as much as we'd hope at this point. (thenextweb.com)
  • Column: Is Facebook's graph search worth its salt? (newsday.com)
  • On Monday, Facebook began the official rollout of its Graph Search feature, which many Facebook users have been using in beta version since late winter. (newsday.com)
  • Mark Zuckerberg has said that Graph Search is different from Web search because it fulfills a different need for Internet users. (newsday.com)
  • In a news release, two Facebook executives who introduced Graph Search on the site wrote: "Graph Search and Web search are very different. (newsday.com)
  • Here's the question, though: Is Graph Search actually useful? (newsday.com)
  • Nonnegative Matrix Factorization for Combinatorial Optimization: Spectral Clustering, Graph Matching, and Clique Finding. (rwth-aachen.de)
  • The deletion and contraction operations are natural reductions for many network models arising from a wide range of problems at the heart of computer science, engineering, optimization, physics, and biology. (hindawi.com)
  • I have now tested 3 separate lots of Titanium Innovations batteries, and have revised the graph above with the run closest to the 'average' performance. (candlepowerforums.com)
  • If it feels like the recovery that started over 3 years ago isn't really going anywhere, there's a reason you might be thinking that. (nonprofitupdate.info)
  • They further predict it will be the warmest La Niña year on record (those are the blue years in the bar graph above). (realclimate.org)
  • According to the BOM itself (see the fine print on that graph), our rainfall has increased by about 6mm a decade over the last 100 years. (joannenova.com.au)
  • A declining number of people who were employed, shown in the second graph. (cincinnati.com)
  • The nadirs shown on the graph coincide with economic troughs or transitions from contraction back to expansion. (investopedia.com)
  • Oh, all right then, what I'm actually thinking is: who wants to eat the world's blandest form of green veg in February when there's curly kale and Swiss chard as vibrant alternatives? (telegraph.co.uk)
  • Here is a graph showing the increase for various regions. (newmatilda.com)
  • The active ingredient appears to be nitrate, which somehow reduces the oxygen cost of muscle contractions. (runnersworld.com)
  • After 7 days, they did a series of muscle tests, including maximal voluntary contractions and various electrically stimulated muscle contractions. (runnersworld.com)
  • How does nitrate affect muscle contraction? (runnersworld.com)
  • Why, then, was there no effect on voluntary muscle contractions? (runnersworld.com)
  • The EKG Sensor measures electrical signals produced during muscle contractions, and can be used to make standard 3-lead EKG tracings or surface EMG recordings. (vernier.com)
  • Pursuit of this crude measure of fairness (the so-called 'decile graph') actually strengthened the poverty trap, reducing the incentive for people to move from welfare to work. (spectator.co.uk)
  • In this work, we compile known formulas for the Tutte polynomial of some families of graphs and matroids. (hindawi.com)
  • These increase during expansion, recede during contraction, and bottom out during a trough. (investopedia.com)
  • Take the idea of the social graph , or a global mapping of relationships. (thesocietypages.org)
  • Even though the invariant is #P-hard to compute in general, there are many occasions when we face the task of computing the Tutte polynomial for some families of graphs or matroids. (hindawi.com)
  • Here we survey some of the best known formulas for some interesting families of graphs and matroids. (hindawi.com)
  • This may also provide tools for computing the Tutte polynomials of new families of graphs or matroids. (hindawi.com)
  • There's more profit if you can create the content, control its use, and then distribute it without having to share royalties. (blogspot.com)