Search results for "relation"
showing 10 items of 10542 documents
Poor-Contrast Particle Image Processing in Microscale Mixing
2010
Particle image velocimetry (PIV) often employs the cross-correlation function to identify average particle displacement in an interrogation window. The quality of correlation peak has a strong dependence on the signal-to-noise ratio (SNR), or contrast of the particle images. In fact, variable-contrast particle images are not uncommon in the PIV community: Strong light sheet intensity variations, wall reflections, multiple scattering in densely-seeded regions and two-phase flow applications are likely sources of local contrast variations. In this paper, we choose an image pair obtained in a micro-scale mixing experiment with severe local contrast gradients. In regions where image contrast is…
Monte Carlo estimation of transverse and longitudinal correlation functions in the model
2010
Abstract Monte Carlo simulations of the three-dimensional O ( 4 ) model in the ordered phase are performed to study the Goldstone mode effects. Our data show a distinct scaling region, where the Fourier-transformed transverse correlation function behaves as ∝ k − λ ⊥ with λ ⊥ 2 ( λ ≃ 1.95 ), in disagreement with the standard theoretical prediction λ ⊥ = 2 .
Recognition Of Polychromatic Test By Multi-Channel Correlation Filtering
1989
A wavelength-multichannel correlation technique based on matched filtering is proposed to identify a colour object with a non uniform colour distribution. The filters are matched to the object which is illuminated with different wavelengths. This correlation gives the information of colour distribution in addition to other information usually obtained from image recognition. The theoretical study of this technique, numerical simulations and discussion are presented.
Validación del SCL-27 en población general y en población clínica argentina
2021
Este estudio tuvo como objetivo evaluar la adecuación del uso de la escala SCL-27 (Sympton Checklist-27) en población general y población clínica argentina y su comparación con el SCL-90R. Se utilizaron una muestra intencional de 400 personas de población general y una muestra de 85 pacientes en tratamiento psicológico ambulatorio. Se administraron el SCL-27, la escala Mental Health Continuum- Short Form, la escala de depresión CES-D, la escala de síntomas somáticos de Schaffer y la escala de Satisfacción con la vida. Los resultados indicaron que el SCL-27 muestra una altísima correlación en todas sus dimensiones con la escala original SCL-90-R. Presentó una alta validez convergente con med…
A New Approach To The Identification Of Cognitive Conflicts In The Repertory Grid: An Illustrative Case Study
1992
Abstract The concept of cognitive conflicts and its relation to the success of psychoanalytically oriented psychotherapy are discussed. According to this model of therapy, patients should achieve insight into their conscious as well as unconscious conflicts. Therefore in the present study we assumed that demonstrable cognitive changes would occur over treatment for chronic pain, as measured by Kelly's (1955) Repertory Grid Test. Grids were analyzed with regard to conflicts on the basis of the concept of unbalanced triads. A triad may be described as unbalanced when logical inconsistencies can be demonstrated on the basis of a correlative comparison of three corresponding construct pairs. Co…
Convergence of Agents' and Targets' Reports on Intraorganizational Influence Attempts1
2003
Summary The object of the current study was to determine the convergent and discriminant validity of agents' and targets' reports on intraorganizational influence attempts with a structural equation model using latent state-trait analyses. To explain agent-target convergence, we linked the theory of formal organizations to Correspondent Inference Theory. Managers (agents) were asked to describe how they try to influence their boss, a coworker, and a subordinate. These targets also described how the agent tries to influence them. Both agents and targets rated four types of influence attempts twice within 2½ months, namely, rational persuasion, ingratiation, pressure, and upward appeals. In …
Testosterone and cortisol release among Spanish soccer fans watching the 2010 World Cup Final
2012
This field study investigated the release of testosterone and cortisol of a vicarious winning experience in Spanish fans watching the finals between Spain and the Netherlands in the 2010 FIFA World Cup Soccer. Spanish fans (n = 50) watched the match with friends or family in a public place or at home and also participated in a control condition. Consistent with hypotheses, results revealed that testosterone and cortisol levels were higher when watching the match than on a control day. However, neither testosterone nor cortisol levels increased after the victory of the Spanish team. Moreover, the increase in testosterone secretion was not related to participants' sex, age or soccer fandom, b…
Politica al femminile. Margherita Bontade militante democristiana nella Sicilia dei primi anni della Repubblica
2014
Margherita Bontade è una tra le più singolari figure di donne impegnate in politica nella Sicilia del Secondo Dopoguerra; tra le poche ad aver trovato spazio nella cerchia dei potenti democristiani del tempo, occupati ad opporsi all’avanzata dei partiti del Blocco del Popolo, con la benedizione delle gerarchie della Chiesa Cattolica. Le sue fortune elettorali dipendono, da un lato, al suo stretto legame con la Curia e al rapporto personale con il Cardinale di Palermo Ernesto Ruffini; d’altro lato, all’alleanza politica prima con Bernardo Mattarella e poi con Franco Restivo. La sua fulminante carriera politica che si snoda nell’arco di un ventennio – tra la fine degli anni ’40 e la fine degl…
Real- and redshift-space halo clustering in $f(R)$ cosmologies
2016
We present two-point correlation function statistics of the mass and the halos in the chameleon $f(R)$ modified gravity scenario using a series of large volume N-body simulations. Three distinct variations of $f(R)$ are considered (F4, F5 and F6) and compared to a fiducial $\Lambda$CDM model in the redshift range $z \in [0,1]$. We find that the matter clustering is indistinguishable for all models except for F4, which shows a significantly steeper slope. The ratio of the redshift- to real-space correlation function at scales $> 20 h^{-1} \mathrm{Mpc}$ agrees with the linear General Relativity (GR) Kaiser formula for the viable $f(R)$ models considered. We consider three halo populations cha…
Euclid preparation XV. Forecasting cosmological constraints for the Euclid and CMB joint analysis
2022
The combination and cross-correlation of the upcoming $Euclid$ data with cosmic microwave background (CMB) measurements is a source of great expectation since it will provide the largest lever arm of epochs, ranging from recombination to structure formation across the entire past light cone. In this work, we present forecasts for the joint analysis of $Euclid$ and CMB data on the cosmological parameters of the standard cosmological model and some of its extensions. This work expands and complements the recently published forecasts based on $Euclid$-specific probes, namely galaxy clustering, weak lensing, and their cross-correlation. With some assumptions on the specifications of current and…