Search results for "tract"

showing 10 items of 9251 documents

Joint second-order parameter estimation for spatio-temporal log-Gaussian Cox processes

2018

We propose a new fitting method to estimate the set of second-order parameters for the class of homogeneous spatio-temporal log-Gaussian Cox point processes. With simulations, we show that the proposed minimum contrast procedure, based on the spatio-temporal pair correlation function, provides reliable estimates and we compare the results with the current available methods. Moreover, the proposed method can be used in the case of both separable and non-separable parametric specifications of the correlation function of the underlying Gaussian Random Field. We describe earthquake sequences comparing several Cox model specifications.

spatio-temporal pair correlation functionEnvironmental EngineeringGaussianminimum contrast methodnon-separable covariance function010502 geochemistry & geophysics01 natural sciencesPoint processGaussian random fieldSet (abstract data type)010104 statistics & probabilitysymbols.namesakeCorrelation functionEnvironmental Chemistry0101 mathematicsSafety Risk Reliability and Qualityearthquakes0105 earth and related environmental sciencesGeneral Environmental ScienceWater Science and TechnologyParametric statisticsMathematicslog-Gaussian Cox processesEstimation theoryContrast (statistics)symbolsEarthquakes Log-Gaussian Cox processes Minimum contrast method Non-separable covariance function Spatio-temporal pair correlation functionSettore SECS-S/01 - StatisticaAlgorithm
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SPSS: Análisis de distractores

2014

Mostra com fer l'analisi de distractors d'una prova. Realizar el análisis de distractores de una prueba estandarizada. It shows how to realise the distractor analysis of a standarized test.

spssstatistical analysisUNESCO::CIENCIAS ECONÓMICAS::Economía sectorial::EducaciónUNESCO::CIENCIAS ECONÓMICAS::Economía sectorial::Finanzas y segurosdistractor analysisUNESCO::MATEMÁTICAS::Estadística ::Análisis de datos
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La valeur partenariale : vers une mesure opérationnelle.

2007

L’objectif de cet article est de proposer une mesure operationnelle de la valeur partenariale. Cette mesure est illustree par une application a un certain nombre de firmes europeennes du secteur automobile. Cette application met en evidence l’interet de la demarche pour construire un diagnostic financier permettant de mieux mettre en relation la conception contractuelle de la firme et l’approche strategique.

stakeholder valuefinancial diagnosis.diagnostic financier.Accounting[SHS.GESTION]Humanities and Social Sciences/Business administrationdiagnostic financier[SHS.GESTION] Humanities and Social Sciences/Business administrationconception contractuelle de la firme[ SHS.GESTION ] Humanities and Social Sciences/Business administrationcontractual perspective of the firmFinancevaleur partenariale
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Riflessioni sulla conventio in D. 2.14.1.3

2019

The author proposes a new interpretation of the well-known Ulpian’s and Pedius’ words contained in D. 2.14.1.3, which is based on the idea that ‘conventio’, despite its common assumption as equivalent of ‘consensus’ (in the abstract sense of subjective element of a contract), rather alludes to the content of the ‘consensus’ as the objective result of a coinciding perception and will (‘in idem sentire’) between the contracting parties.

stipulatioPediuUlpianus.consensuSettore IUS/18 - Diritto Romano E Diritti Dell'Antichita'contractuConventio
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Stability of stochastic nonlinear systems with state-dependent switching

2013

In this paper, the problem of stability on stochastic systems with state-dependent switching is investigated. To analyze properties of the switched system by means of Itô’s formula and Dynkin’s formula, it is critical to show switching instants being stopping times. When the given active-region set can be replaced by its interior, the local solution of the switched system is constructed by defining a series of stopping times as switching instants, and the criteria on global existence and stability of solution are presented by Lyapunov approach. For the case where the active-region set can not be replaced by its interior, the switched systems do not necessarily have solutions, thereby quasi-…

stochastic systemsStability (learning theory)Mathematical proofnonlinear control systemsSet (abstract data type)State-dependent switching; Stochastic systems; Switched systems; Control and Systems Engineering; Computer Science Applications1707 Computer Vision and Pattern Recognition; Electrical and Electronic EngineeringExponential stabilityControl theoryElectrical and Electronic EngineeringSwitched systemsMathematicsLyapunov methodsStochastic systemsSeries (mathematics)Stochastic processApplied MathematicsComputer Science Applications1707 Computer Vision and Pattern Recognitionstate-dependent switchingstabilityComputer Science ApplicationsNonlinear systemControl and Systems EngineeringState dependentswitched systemscontrol system synthesisState-dependent switching
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Clinical and radiographical evaluation of non-syndromic hypodontia and hyperdontia in permanent dentition

2009

Objectives: The purpose of this study was to evaluate the clinical and radiographical characteristics of non-syndromic hypodontia and hyperdontia in the permanent dentition.Study design: This study included 139 patients. Clinical and radiographical examinations were carried out by two examiners. Number and localization of missing or supernumerary teeth, and pathologies associated with the teeth, were recorded. Other teeth in the mouth were also examined for the presence of additional dental anomalies.Results: A total of 256 congenitally missing teeth were observed in 102 patients, and 73 supernumerary teeth were observed in 37 patients. The rate of missing teeth was much higher in females (…

stomatognathic diseasesUNESCO:CIENCIAS MÉDICASrespiratory tract diseases
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Ultrastructure of posterior sternal glands of Macrotermes annandalei (Silvestri): new members of the sexual glandular set found in termites (Insecta)

2004

0362-2525 (Print) Comparative Study Journal Article; In female alates of Macrotermes annandalei, two types of abdominal glands are involved in the secretion of sex pheromone. Tergal glands are found at the anterior margin of tergites 6-10 and posterior sternal glands (PSGs) are located at the anterior margin of sternites 6-7. The cytological features of both types of glands are quite similar. The fine structural organization of PSGs is studied more precisely and described for the first time. The glandular cuticle is pitted with narrow apertures corresponding to the openings of numerous subcuticular pouches. Several Class 3 glandular units open in each pouch. One canal cell and one secretory…

stomatognathic systemSex Attractants/secretionIsoptera/physiology/*ultrastructureAbdomen/anatomy & histologyAnimalsFemaleScent Glands/secretion/*ultrastructurePhylogeny
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Stretch reflex modulation during exercise and fatigue

2003

stretch reflexshorteningfysiologiaväsymyspohkeetisometriclihaksetliikuntafysiologialiikuntalong-lasting low-intensity eccentric exercisejalatfyysinen kuormittavuuspre-contraction levellengtheningmotor taskfatiguerefleksit
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Modulations of corticospinal excitability following rapid ankle dorsiflexion in skill- and endurance-trained athletes

2022

Abstract Purpose Long-term sports training, such as skill and endurance training, leads to specific neuroplasticity. However, it remains unclear if muscle stretch-induced proprioceptive feedback influences corticospinal facilitation/inhibition differently between skill- and endurance-trained athletes. This study investigated modulation of corticospinal excitability following rapid ankle dorsiflexion between well-trained skill and endurance athletes. Methods Ten skill- and ten endurance-trained athletes participated in the study. Corticospinal excitability was tested by single- and paired-pulse transcranial magnetic stimulations (TMS) at three different latencies following passive rapid ankl…

stretch reflextraining adaptationPhysiologyPyramidal Tractsphysical exercisePhysiology (medical)transcranial magnetic stimulationHumansharjoitteluOrthopedics and Sports MedicineneuroplastisuusMuscle SkeletalmotoriikkaElectromyographytranskraniaalinen magneettistimulaatioPublic Health Environmental and Occupational HealthGeneral MedicineEvoked Potentials MotorTranscranial Magnetic StimulationharjoitusvasteEndurance Traininghermo-lihastoimintaAthletescorticospinal excitabilityrefleksitAnkleurheilijatEuropean Journal of Applied Physiology
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What contexts are favorable for the adoption of the contract teacher policy ?

2010

Education systems in Francophone African countries are undergoing major reforms, consequence of the international commitment to achieve Universal Primary Education (UPE) by 2015. Teachers' recruitment is among the most important reforms for at least two reasons: first, various researches presented it as necessary otherwise UPE will not be achieved; second, the alternative policy proposed is unpopular as new teachers are recruited with lower qualification, receive lower salaries and have a less secure job position. Yet, some governments have succeeded in changing their teacher recruitment scheme and others have not. Conditions allowing a government to make the reform are still uninvestigated…

sub-Saharan AfricaAnalyse politiquePolicy analysis[SHS.EDU] Humanities and Social Sciences/EducationContract teacherEnseignantAfrique subsaharienneContractuelEducation
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