Search results for "Statistical analysi"
showing 10 items of 394 documents
Les pistes dinosauroïdes du Trias moyen français : interprétation et réévaluation de la nomenclature
2005
Resume De nombreuses traces de pieds dinosauroides, associees parfois avec la main, ont ete recoltees depuis 1960 dans les diverses formations greseuses de la base du Trias de la bordure orientale du Massif Central. Les niveaux a ichnites, dates par les donnees palynologiques, micropaleontologiques et palichnologiques sont compris dans l'intervalle Anisien-Ladinien inferieur. L'interpretation paleontologique de ces empreintes conduit a evoquer des Reptiles bipedes, digitigrades, aux membres posterieurs parasagittaux, ayant des mains pentadactyles et des pieds fontionnellement tridactyles II–IV, dont l'architecture osseuse est celle des Dinosaures Ceratosaures du Trias superieur. Les squelet…
Chemomechanical preparation by hand instrumentation and by Mtwo engine-driven rotary files, an ex vivo study
2011
Objective: To compare the disinfecting efficacy of the sodium hypochlorite irrigation by root canal preparation with stainless steel hand files, taper 0.02 and nickel-titanium Mtwo files with taper 0.04-0.06. Study Design: 40 extracted human teeth were sterilized, and then inoculated with Enterococcus faecalis (ATCC 29212). After 6 day incubation time the root canals were prepared by hand with K-files (n=20) and by engine-driven Mtwo files (VDW, Munich, Germany) (n=20). Irrigation was carried out with 2.5% NaOCl in both cases. Samples were taken and determined in colony forming units (CFU) from the root canals before and after the preparation with instruments #25 and #35. Results: Significa…
Alteraciones osteoarticulares en el músico adulto mayor de instrumentos viento-madera
2021
espanolRESUMEN Objetivo: Valorar si existen cambios a nivel bucodental en adultos mayores, instrumentistas de viento-madera por el uso del instrumento a lo largo de mas de 35 anos de profesion y compararlos con un grupo control. Metodologia: Estudio de tipo observacional, descriptivo de corte transversal, entre musicos profesionales, adultos mayores, de 60 anos o mas, con mas de 35 anos de profesion y que toquen instrumentos de "viento-madera". La muestra inicial de estudio estaba formada por 57 musicos. El instrumento de recogida de datos utilizado se ha elaborado de forma exclusiva. El analisis estadistico se llevo a cabo mediante SPSS Statistics 23.0. Resultados: Media de edad 63 ± 1,28 …
The University of Valencia’s computerized word pool
1988
This paper presents the University of Valencia’s computerized word pool. This is a database that includes 16,109 Spanish words, together with 11 psychological variables for limited groups of items. The purpose behind the creation of this database was to have available a large quantity of verbal stimuli in a well-controlled system, ready for automatic selection. The description includes a summary of statistics on each of the 11 psychological variables, together with a correlational and factor analysis of them. This statistical analysis produces results close to those obtained for equivalent English material.
Influence of nicotine on machined- and anodized-surface implants. Histometric analysis
2017
Background The nicotine may generate a influence on bone repair and longevity of dental implants. This fact makes studies to improve the surface of the implants are constantly conducted. This study aimed to evaluate the influence of subcutaneous nicotine injection in the osseointegration process on different implant surfaces, through histomorphometric analysis. Material and Methods Therefore, twenty-two male rabbits were randomly distributed into two groups according to the subcutaneous injections: (1) nicotine, 3 mg/day/kg and (2) 0.9% NaCI, 3 mL/day/kg, three times a day. Subgroups were then designated - machined and anodized dental implants were installed in the right and left tibia bone…
Tourism Activity of Member States and Romania's Place within the First Five Years after EU Accession
2013
Abstract This paper is a brief statistical analysis of the evolution of tourism in the EU-27 in the first five years after Romania's accession. The analysis was based on official data published by Eurostat regarding the tourist accommodation capacity by categories, the number of arrivals and overnight stays of tourists and non-residents. I highlighted each time Romania's place within Member States, preferring graphics that are more suggestive than synthetic data tables. In conclusions I have highlighted the changes occurred in Romania, far from those expected after five years as a member of the European Union.
Upper limits on the isotropic gravitational-wave background from Advanced LIGO and Advanced Virgo's third observing run
2021
We report results of a search for an isotropic gravitational-wave background (GWB) using data from Advanced LIGO's and Advanced Virgo's third observing run (O3) combined with upper limits from the earlier O1 and O2 runs. Unlike in previous observing runs in the advanced detector era, we include Virgo in the search for the GWB. The results are consistent with uncorrelated noise, and therefore we place upper limits on the strength of the GWB. We find that the dimensionless energy density $\Omega_{\rm GW}\leq 5.8\times 10^{-9}$ at the 95% credible level for a flat (frequency-independent) GWB, using a prior which is uniform in the log of the strength of the GWB, with 99% of the sensitivity comi…
Computational Techniques for the Analysis of Small Signals in High-Statistics Neutrino Oscillation Experiments
2020
The current and upcoming generation of Very Large Volume Neutrino Telescopes – collecting unprecedented quantities of neutrino events – can be used to explore subtle effects in oscillation physics, such as (but not restricted to) the neutrino mass ordering. The sensitivity of an experiment to these effects can be estimated from Monte Carlo simulations. With the high number of events that will be collected, there is a trade-off between the computational expense of running such simulations and the inherent statistical uncertainty in the determined values. In such a scenario, it becomes impractical to produce and use adequately-sized sets of simulated events with traditional methods, such as M…
Socio-emotional Problems Experienced by Deaf and Hard of Hearing Students in Ethiopia
2015
This study compares the socio-emotional problems experienced by deaf and hard of hearing (DHH) students with those of hearing students in Ethiopia. The research involved a sample of 103 grade 4 students attending a special school for the deaf, a special class for the deaf and a regular school. Socio-emotional problems were measured using Goodman's self-report measure, the Strengths and Difficulties Questionnaire for children and adolescents. Participants were selected from seven towns in Ethiopia. The results show that, compared to the hearing sample, the DHH students experienced more severe socio-emotional problems across all dimensions, regardless of whether they were in special classes o…
Search for heavy neutrinos with the T2K near detector ND280
2019
This paper reports on the search for heavy neutrinos with masses in the range 140<MN<493 MeV/c2 using the off-axis near detector ND280 of the T2K experiment. These particles can be produced from kaon decays in the standard neutrino beam and then subsequently decay in ND280. The decay modes under consideration are N→ℓ±απ∓ and N→ℓ+αℓ−β(−)ν(α,β=e,μ). A search for such events has been made using the Time Projection Chambers of ND280, where the background has been reduced to less than two events in the current dataset in all channels. No excess has been observed in the signal region. A combined Bayesian statistical approach has been applied to extract upper limits on the mixing elements of heav…