showing 36 of ~574560 from 574555 documents

In vivo achilles tendon loading' during jumping in humans

1995

Elastic behaviour of the human tendomuscular system during jumping was investigated by determination of the in vivo Achilles tendon force. A buckle-type transducer was implanted under local anaesthesia around the right Achilles tendon of an adult subject. After calibration, the Achilles tendon force was recorded together with the triceps surae muscle electromyogram activity and high speed filming and ground reaction force during: a maximal vertical jump from a squat position, a maximal vertical jump from an erect standing position with a preliminary counter-movement, and repetitive submaximal hopping on the spot. Jumping heights were 33, 40 and 7 cm in the squat, the counter movement, and t…

AdultMalemusculoskeletal diseasesMaterials sciencePhysiologyPhysical ExertionSquatmedicine.disease_causeAchilles TendonVertical jumpJumpingTriceps surae musclePhysiology (medical)medicineHumansOrthopedics and Sports MedicineGround reaction forceMuscle SkeletalAchilles tendonElectromyographyWork (physics)Public Health Environmental and Occupational HealthGeneral MedicineAnatomymusculoskeletal systemElasticityBiomechanical PhenomenaTendonmedicine.anatomical_structureEuropean Journal of Applied Physiology and Occupational Physiology

Rumex bolosii - eine neue endemische Art aus dem Rif-Gebirge (Marokko)

1995

5 p.

GenusBotanyPlant ScienceBiologyRumexbiology.organism_classificationEcology Evolution Behavior and Systematics

Accuracy of the colour coded doppler examination and phlebography in diagnosis of vein diseases

1995

Phlebology : the journal of venous disease

Compresión del nervio cubital por quiste sinovial en el canal epitrócleo-olecraneano

1995

Se presenta un caso de compresión del nervio cubital por un quiste sinovial a nivel del canal epitrócleo-olecraneano. El tratamiento fue quirúrgico y consistió en la resección del ganglión asociada a la exoneurolisis y transposición anterior del nervio. La evolución fue satisfactoria, produciéndose una mejoría progresiva de sus síntomas preoperatorios. A rare case of cubital nerve compression due to a synovial cyst in the epitrochlear groove is presented. It was treated surgically by cyst resection and exoneurolisis together with anterior transposition of the nerve. The follow-up was satisfactory, with gradual improvement of the previous symptoms.

Medicina clínicaUNESCO::CIENCIAS MÉDICAS:CIENCIAS MÉDICAS [UNESCO]Ciencias de la salud

Plantas : Un caso especial de evolución y morfogénesis

1995

Este trabajo versa sobre teoría evolutiva (especialmente mecanismos evolutivos y evolución mortologica) y paleobotánica. Las plantas fósiles conservan muy bien su estructura histológica. y por ello poseen un alto contenido de información, la evolución dc ¡as 1>1 a ntas tiene aspectos específicos: no l>ay secuestro (le la línea gerrn i nial (WLISMANN) y la poliploidía es un mecanismo de aislamiento reproductivo frecuente Los conceptos de la Morfodinámica de SEI LACHER son útiles para eí>tender las ¡iniilaciones en la evolución (le las plantas La heterocron ja es otro canipo a tener en cuenta. -Miquel.De.Renzi@uv.es

MorfodinámicaTeoría evolutiva; Morfodinámica; Heterecronía; Limitaciones evolutivas; Paleobotánica:CIENCIAS DE LA VIDA::Paleontología [UNESCO]Teoría evolutivaLimitaciones evolutivasHeterecroníaUNESCO::CIENCIAS DE LA VIDA::PaleontologíaPaleobotánica

Estudio epidemiológico de las fracturas trocantéreas en pacientes mayores de 65 años: área de Salud III, Zaragoza

1995

Se presenta un estudio epidemiológico de las fracturas trocantéreas en pacientes mayores de 65 años tratadas en nuestro Servicio y de Cirugía Ortopédica y Traumatología del Hospital Clínico Universitario de Zaragoza entre los años 1980-1993, haciendo hincapié en los últimos 4 años. Como parámetros de referencia hemos utilizado la edad, sexo, lado afectado, mecanismo de producción, clasificación, estancia hospitalaria, demora en la intervención, tratamiento efectuado, mortalidad y morbilidad. Observamos la elevada incidencia de trauma menor en el mecanismo de producción, la inversión del índice cervicotrocantéreo y en general la elevada incidencia en la población a riesgo, lo que han hecho d…

Medicina clínicaUNESCO::CIENCIAS MÉDICAS:CIENCIAS MÉDICAS [UNESCO]Ciencias de la salud

Monasterio de San Miguel de los Reyes, alias San Bernardo de Rascanya

1995

La comunidad de monjes jerónimos del monasterio de San Miguel de los Reyes, extramuros de Valencia, surgió en 1546 sobre el cenobio cisterciense de San Bernardo de Rascanya o de la Huerta, fundado en el último tercio del siglo XIV. Junto al cambio de orden monástica e intitulación había un proyecto de monumentalizar el cenobio. No obstante, siempre se tuvieron en cuenta las obras preexistentes y en la medida de lo posible éstas fueron asumidas. El análisis de la obra medieval no sólo se justifica como contribución al estudio de la arquitectura en sus monumentos desaparecidos, sino por la influencia que esta construcción ejerció en el monasterio de época moderna que hoy se conserva. Se canal…

JerónimosArquitectura medievalMonasteriosUNESCO::HISTORIA::Historia por épocas::Historia antiguaArquitectura renacentistaArquitectura religiosa:HISTORIA::Historia por épocas::Historia antigua [UNESCO]Distribución interiorCistercienses

Learning of regular expressions by pattern matching

1995

We consider the problem of restoring regular expressions from good examples. We describe a natural learning algorithm for obtaining a “plausible” regular expression from one example. The algorithm is based on finding the longest substring which can be matched by some part of the so far obtained expression. We believe that the algorithm to a certain extent mimics humans guessing regular expressions from the same sort of examples. We show that for regular expressions of bounded length successful learning takes time linear in the length of the example, provided that the example is “good”. Under certain natural restrictions the run-time of the learning algorithm is polynomial also in unsuccessf…

PolynomialFinite-state machineRegular languageComputer scienceBounded functionRegular expressionPattern matchingAlgorithmExpression (mathematics)Substring

Study of the β-delayed neutron decay of 17C and 18C

1995

Abstract The β-delayed neutron decays of 17C and 18C have been studied using a time-of-flight array with a high detection efficiency. The 17C and 18C ions were produced by fragmentation of an E A = 69 MeV 22Ne beam. Transitions to several neutron unbound states have been observed for the first time for both decays with total branching ratios of (10.8 ± 2.2)% and (21.4 ± 4.4)%. Half-lives of 193 ± 6 ms and 92 ± 2 ms were found for 17C and 18C, respectively. The results are compared with previous measurements of the β-decays and with shell-model calculations.

PhysicsNuclear and High Energy PhysicsFragmentation (mass spectrometry)NeutronAtomic physicsDelayed neutronIonNuclear Physics A

Modeling Requirements for Future CASE

1995

In this paper we discuss some requirements for future CASE Computer Aided Software/Systems Engineering environments. These requirements include increased modifiability and flexibility as well as support for process and agent models. We claim that they can only be addressed by developing more powerful representation and modeling techniques. As a possible basis for modeling various techniques, we outline a general information architecture for a future CASE environment. In addition, we propose primitive types for specifying techniques, the development process, and agent models, and use these types for modeling an example methodology and examine how the requirements are or can be supported in o…

Flexibility (engineering)Process (engineering)business.industryComputer scienceStrategy and ManagementInformation architectureLibrary and Information SciencesService-oriented modelingPrimitive data typeSoftwareSystems engineeringComputer-aidedBusiness and International ManagementRepresentation (mathematics)businessInformation Resources Management Journal

Direct neutrino mass measurements

1995

The paper reports on recent progress and developments since the neutrino '92 conference in the search for finite neutrino masses by direct mass measurements. Regarding the mass of μ - and τ -neutrino experiments have been finished and come up with somewhat improved upper bounds; the negative m 2 -value for the μ -neutrino could be removed mostly. Indications of a 17 keV neutrino component in β -decay spectra have been disproved by a number of alternative experiments as well as by reanalysis of part of the original data. Regarding the electron neutrino mass, measurements by magnetic spectrometers are phasing out in favour of electrostatic filters with magnetic guiding fields. These experimen…

PhysicsNuclear and High Energy PhysicsParticle physicsPhysics::Instrumentation and DetectorsSolar neutrinoSolar neutrino problemAtomic and Molecular Physics and OpticsMuon captureNuclear physicsNeutrino detectorMeasurements of neutrino speedHigh Energy Physics::ExperimentNeutrinoNeutrino oscillationElectron neutrinoNuclear Physics B - Proceedings Supplements

La influencia de los atributos intangibles en la variable precio

1995

UNESCO::CIENCIES ECONÓMICASEconomics Finance:CIENCIES ECONÓMICAS [UNESCO]

Production of representative wine extracts for chemical and olfactory analysis

1995

International audience

[SDV] Life Sciences [q-bio][SDV]Life Sciences [q-bio]ComputingMilieux_MISCELLANEOUS

Wärmeleitfähigkeit halbfester pharmazeutischer Hilfsstoffe und Formulierungen

1995

ChemistryDrug DiscoveryPharmaceutical ScienceArchiv der Pharmazie

Learning from good examples

1995

The usual information in inductive inference for the purposes of learning an unknown recursive function f is the set of all input /output examples (n,f(n)), n ∈ ℕ. In contrast to this approach we show that it is considerably more powerful to work with finite sets of “good” examples even when these good examples are required to be effectively computable. The influence of the underlying numberings, with respect to which the learning problem has to be solved, to the capabilities of inference from good examples is also investigated. It turns out that nonstandard numberings can be much more powerful than Godel numberings.

AlgebraTransduction (machine learning)Inductive transferComputational learning theoryInductive biasbusiness.industryAlgorithmic learning theoryUnsupervised learningMulti-task learningArtificial intelligenceInstance-based learningbusinessMathematics

Modifications of head turning and circling movement following sulpiride microinjections into nucleus accumbens in the rat

1995

The aim of this study was to determine whether a relationship exists between nucleus accumbens D2 receptors, circling behavior, and its first stage, the head turning. Rats were unilaterally lesioned in the substantia nigra with 6-hydroxydopamine and afterward treated with d-amphetamine IP following bilateral intraaccumbens microinjections (1, 5, 10 micrograms/0.5 microliters) of sulpiride, a D2 receptor antagonist. Computer-assisted video analysis allowed the study of some parameters (number of turns, type of turn, head turning duration, degree and speed) characterizing rotatory activity. Sulpiride microinfusion resulted in a dose-dependent decrease of the number of turns and head rotation …

MaleDextroamphetamineMicroinjectionsRotationDopamine AgentsSubstantia nigraNucleus accumbensNucleus Accumbenschemistry.chemical_compoundDopamineBasal gangliamedicineAnimalsRats WistarOxidopamineMicroinjectionDose-Response Relationship DrugGeneral NeuroscienceSympathectomy ChemicalRatsDopamine D2 Receptor AntagonistschemistryMicroinjectionsDopamine AntagonistsStereotyped BehaviorSulpirideSulpiridePsychologyHeadNeuroscienceOxidopaminemedicine.drugBrain Research Bulletin

El Herbario VAB en 1995

1995

BotánicaCiencias biológicasUNESCO::CIENCIAS DE LA VIDA

La tributación ambiental en España

1995

:CIENCIAS JURÍDICAS [UNESCO]Environmental LawUNESCO::CIENCIAS JURÍDICAS

Maximum likelihood estimation for the exponential power function parameters

1995

This paper addresses the problem of obtaining maximum likelihood estimates for the three parameters of the exponential power function; the information matrix is derived and the covariance matrix is here presented; the regularity conditions which ensure asymptotic normality and efficiency are examined. A numerical investigation is performed for exploring the bias and variance of the maximum likelihood estimates and their dependence on sample size and shape parameter.

Statistics and ProbabilityEstimation theoryRestricted maximum likelihoodMaximum likelihood sequence estimationLikelihood principlesymbols.namesakeEstimation of covariance matricesModeling and SimulationStatisticsExpectation–maximization algorithmsymbolsFisher informationLikelihood functionMathematicsCommunications in Statistics - Simulation and Computation

Absence of lightness constancy as a deficit of monochromatic vision

1995

Dark-adapted human subjects arranged a collection of colored papers in a sequence according to their lightness. The sequence of the papers (which appeared gray to the subjects) varied under different illuminant spectra. These variations could be predicted quantitatively from the radiometric data and human scotopic spectral sensitivity. By substitution of natural daylight spectra in the computation it was shown that monochromats cannot perceive lightness reliably under the changing illuminant spectra of our planet. Animals need some degree of lightness constancy to detect figures against a background reliably. This can be achieved only with the help of additional light receptors of different…

LightnessSpectral sensitivityOpticsColoredbusiness.industryDaylightRadiometric dataStandard illuminantScotopic visionMonochromatic colorbusinessMathematics

Catedráticos juristas: formación y carrera

1995

Spanish law professors learned Roman and Canon law from the XVIth to the XVIIIth century. This is a study of their formation, until they obtained a chair in university. Also studied is the abusive role played by « colegiales mayores » and the domination of royal bureaucracy.

Linguistics and LanguageHistoryLiterature and Literary Theorycatedráticos juristas:CIENCIAS JURÍDICAS Y DERECHO [UNESCO]UNESCO::CIENCIAS JURÍDICAS Y DERECHOLanguage and Linguistics

"Raastuvassa tavataan" : Suomen kaupunkien hallinto- ja oikeuslaitoksen toimintaa ja virkamiehiä suurvalta-aikana

1995

suurvalta-aikakaupungitraastuvanoikeudethistoriavirkamiehetkunnallishallintohallintoSuomimaistraatitoikeushistoriakaupunkihistoriahallintohistoriaoikeuslaitos1600-lukualioikeudet

Orientation et réussite dans les filières scientifiques

1995

International audience; Cet article vise à sensibiliser les enseignants à l'analyse des situations concrètes de la classe à la lueur des apports de la recherche. On y trouve une présentation synthétique de leurs résultats ainsi que des encadrés, centrés sur l'action à mener sur ltrois points décisifs de la vie en classe : la mise en oeuvre du curriculum prescrit : - l'organisation du travail dans la classe, le contenu des programmes et des manuels - Les interactions maitres-élèves, les pratiques d'évaluation, les interactions entre élèves, - les phénomènes d'orientation

Relation élève-enseignantOrganisation du système éducatifProgramme d'enseignementOrientation scolaire[SHS.EDU]Humanities and Social Sciences/Education[SHS.EDU] Humanities and Social Sciences/EducationAuto-sélectionFranceDifférenciation sexuelleRéussite scolaireFilière sciencesRelation élève-élève

Salomon Grumbach, Korrespondent des Vorwärts in Paris. – Das politische Leben Frankreichs, deutschen Sozialdemokraten geschildert von einem sozialdem…

1995

International audience

[SHS.LITT] Humanities and Social Sciences/Literature[SHS.LITT]Humanities and Social Sciences/Literature[ SHS.LITT ] Humanities and Social Sciences/LiteratureComputingMilieux_MISCELLANEOUS

CAP et BEP : une insertion typée selon la spécialité

1995

International audience; Toutes les études consacrées à l'insertion s'accordent à reconna\ⁱtre que les itinéraires des jeunes sont de plus en plus longs et complexes, où alternent périodes de chômage, d'emplois précaires, de stages .. Le risque de chômage s'avère d'autant plus grand que le niveau de formation est faible, l'écart entre sexes est nettement en défaveur des jeunes filles en ce qui concerne l'accès à l'emploi. La dégradation générale du marché du travail a profondément retenti sur la situation des débutants à leur entrée dans la vie active. Pourtant cette détérioration générale renforce les disparités d'insertion selon le niveau de formation, la spécialité suivie et la région de …

BEPEnquête IVA[SHS.EDU]Humanities and Social Sciences/EducationEnquête IPAInsertion professionnelle[SHS.EDU] Humanities and Social Sciences/EducationEnseignement secondaireFranceCAPEnseignement technique et professionnel court

Les ammonites du Sinémurien de Mandelot (Côte-D'or, France). Approches biostratigraphique, morphologique et ontogénétique

1995

Resume L'etude des faunes d'ammonites du Sinemurien de la coupe inedite de Mandelot a permis d'apporter des precisions,pour une trentaine de taxons, soit sur l'ontogenese, soit la la variabilite ou la position stratigraphique. Ces especes qui, pour l'essentiel, sont des arietitides se rattachent essentiellement aux zones a Semicostatum, Turneri et Obtusum. Certains Coroniceras, Caenisites, Agassiceras, Asteroceras et Epophioceras , sont des formes souvent tres mal connues dont les positions stratigraphiques et les modalites ontogenetiques sont, ici, precisees pour la premiere fois. Ce travail est donc a la fois un element a la connaissance du Sinemurien de la Bourgogne, region du stratotype…

GeographyStratotypebiologySpace and Planetary SciencePaleontologyMesozoicbiology.organism_classificationHumanitiesArietitidaeGeobios

Transcatheter radiofrequency perforation and stent implantation for palliation of pulmonary atresia in a 3060-g infant

1995

In a 3060-g infant with fibromuscular pulmonary atresia an open right ventricular outflow tract was created by means of interventional cardiological methods. Following two inadvertent perforations without sequelae or clinical symptoms, radiofrequency perforation and subsequent balloon dilatation were successfully performed. The implantation of a Palmaz iliac stent led to a predictable communication between the right ventricle and pulmonary artery.

Heart Septal Defects VentricularCardiac Catheterizationmedicine.medical_specialtymedicine.medical_treatmentPerforation (oil well)Coronary Angiographymedicine.arterymedicineHumansVentricular outflow tractmedicine.diagnostic_testbusiness.industryInfant NewbornStentmedicine.diseaseSurgerymedicine.anatomical_structureEchocardiographyPulmonary AtresiaVentricleAtresiaAngiographyPulmonary arteryCatheter AblationFemaleStentsRadiologyCardiology and Cardiovascular MedicinePulmonary atresiabusinessCatheterization and Cardiovascular Diagnosis

Colour doppler sonography in diagnosis of patients with chronic oedema of low extremities

1995

Phlebology : the journal of venous disease

Prinzipien der Selbstorganisation beim Einsatz in Spracherkennungssystemen

1995

In diesem Artikel werden neue Verfahren zur Selbstorganisation vorgestellt und analysiert, deren Grundlagen auf der von [Kohonen 89] vorgestellten Feature Map und dem Self-Organizing Discrete Manifolds-Verfahren von [Martinetz/Schulten 91] basieren.

Les écoles d'art en France : évolution des structures d'offres et des effectifs

1995

Offre de formation[SHS.EDU] Humanities and Social Sciences/EducationStructureÉtudiantÉcole d'artÉvolutionFranceEffectifEnseignement supérieur

Las comunidades pesqueras ante la crisis de las pesquerías y el cambio económico

1995

En este artículo se analizan tres comunidades pesqueras distantes entre sí: Benicarló en el Maestrat, Torrevieja en el litoral meridional y, finalmente, el Palmar en l'Albufera. Los sistemas de pesca empleados son diferentes. En Benicarló predomina el arrastre, mientras que en Torrevieja hay un mayor número de embarcaciones de cerco. El Palmar es otra cosa, sus hombres pescan al redolí y al involant en las aguas dulces del lago. En el primer apartado se expone sucintamente la evolución demográfica y profesional de las tres comunidades y algunos aspectos de su estructura actual, lo que nos permite, tal como se expone en los siguientes apartados, contextuar las estrategias adoptadas por los p…

GeografíaUNESCO::HISTORIAGeociencias. Medio ambienteGrupo B:HISTORIA [UNESCO]

L. Planius Russinus en las costas de Dénia

1995

lcsh:Clcsh:Archaeologylcsh:CC1-960lcsh:Auxiliary sciences of history

Drets de justícia i masos: hipòtesi sobre els orígens de la pagesia de remença

1995

UNESCO::HISTORIAHumanidadesGrupo C:HISTORIA [UNESCO]Historia

Movimientos migratorios actuales en el País Valenciano

1995

La actual composición de la población valenciana está condicionada por los movimientos demográficos espaciales acontecidos especialmente en décadas pasadas y, en menor medida, en la actualidad. En la primera parte del trabajo de investigación que presentamos se analiza dicha estructura según lugar de origen de la población actual (mediante la explotación del Censo de Población de 1991), es decir, se realiza una visión estática de la misma. A continuación se lleva a cabo un análisis más dinámico a través del estudio de los movimientos migratorios del último periodo intercensal (1981- 1991).

GeografíaUNESCO::HISTORIAGeociencias. Medio ambienteGrupo B:HISTORIA [UNESCO]

Coordination and profit rate maximization

1995

We study the effects over the coordination between firms of the choice of another objectivefunction for the firm: the profit rate maximization which seems to be closer to business practice than the classical pure profit maximization. After recalling the effect of the new objective function over the optimum (the optimal production is lower), two cases are considered : perfect competition (the price signal disappear), and duopoly-oligopoly (the functions of reactions may vanish). (FR) Nous étudions les effets sur la coordination inter-firmes du choix d'une autre fonction objectif pour la firme: la maximisation du taux de profit qui semble être plus proche de la pratique des affaires que la cl…

Control theoryCoordinationStatisticsMaximizationProfit[ SHS.ECO ] Humanities and Social Sciences/Economies and financesMicroeconomic behaviours of fishermen[SHS.ECO]Humanities and Social Sciences/Economics and Finance[SHS.ECO] Humanities and Social Sciences/Economics and FinanceProfit rateOperational researchRecherche opérationnelleAutomatique

Estudio comparativo de la fijación con o sin cemento en Prótesis Total de Rodilla

1995

Revisamos retrospectivamente una serie de 86 pacientes portadores de 110 prótesis totales modulares de rodilla colocadas como tratamiento de la gonartrosis. Se analizan los resultados obtenidos en los pacientes a los que se le realizó una fijación híbrida cementada (componente femoral no cementado y componente tibial y patelar cementado) respecto a los que se le realizó una prótesis de anclaje biológico sin ningún tipo de cementación. El análisis de la función clínica, movilidad de la rodilla, estudio radiológico y complicaciones de ambas series no demuestran diferencias significativas entre ambos grupos con un periodo de seguimiento de 45 meses (r=12-60). We have retrospectively review 86 …

Medicina clínicaUNESCO::CIENCIAS MÉDICAS:CIENCIAS MÉDICAS [UNESCO]Ciencias de la salud