Confiabilidad de la escala : Consideración de futuras consecuencias y correlato con tabaquismo y rendimiento académico

Introducción: El uso apropiado de la escala Consideración de Futuras Consecuencias requiere evidencias locales de sus propiedades. Objetivos: poner a prueba la estabilidad de las mediciones con la escala y explorar su correlato con el tabaquismo y rendimiento estudiantil. Método: se aplicó técnica de test y re-test con intervalo de 2 semanas y encuesta a 90 estudiantes universitarios. Se utilizó el promedio de calificaciones en evaluaciones parciales como indicador de rendimiento académico. Resultados: La correlación entre ambas administraciones para CFC Total fue alta y significativa (r = 0,80; p < 0,01; n = 81), al igual que para las sub-escalas (CFC-D r = 0,73; p < 0,01; CFC-P r = 0,76; p < 0,01). No se pudo sostener la hipótesis de relación entre CFC e indicadores de consumo tabáquico y rendimiento académico.Introduction: Appropriate use of the Consideration of Future Consequences (CFC) Scale requires development of empirical properties in specific locales. Objectives: To test the stability of the scale’s scores and explore the relationships between CFC scores and smoking and academic achievement. Method: Test-retest reliability was calculated using a two week interval of survey administration to 90 university students. GPA in psychiatry courses was the index of academic achievement. Results: CFC Total scores at test and retest administrations correlated strongly and significantly (r = 0.80, p < 0.01, n = 81), as did CFC subscale scores (CFC-D r = 0.73, p < 0.01; CFC-P r = 0.76, p < 0.01). Results did not support the hypothesized relationship between CFC and indices of tobacco consumption and academic performance.Facultad de Ciencias Médica

Confiabilidad de la escala : Consideración de futuras consecuencias y correlato con tabaquismo y rendimiento académico

Introducción: El uso apropiado de la escala Consideración de Futuras Consecuencias requiere evidencias locales de sus propiedades. Objetivos: poner a prueba la estabilidad de las mediciones con la escala y explorar su correlato con el tabaquismo y rendimiento estudiantil. Método: se aplicó técnica de test y re-test con intervalo de 2 semanas y encuesta a 90 estudiantes universitarios. Se utilizó el promedio de calificaciones en evaluaciones parciales como indicador de rendimiento académico. Resultados: La correlación entre ambas administraciones para CFC Total fue alta y significativa (r = 0,80; p < 0,01; n = 81), al igual que para las sub-escalas (CFC-D r = 0,73; p < 0,01; CFC-P r = 0,76; p < 0,01). No se pudo sostener la hipótesis de relación entre CFC e indicadores de consumo tabáquico y rendimiento académico.Introduction: Appropriate use of the Consideration of Future Consequences (CFC) Scale requires development of empirical properties in specific locales. Objectives: To test the stability of the scale’s scores and explore the relationships between CFC scores and smoking and academic achievement. Method: Test-retest reliability was calculated using a two week interval of survey administration to 90 university students. GPA in psychiatry courses was the index of academic achievement. Results: CFC Total scores at test and retest administrations correlated strongly and significantly (r = 0.80, p < 0.01, n = 81), as did CFC subscale scores (CFC-D r = 0.73, p < 0.01; CFC-P r = 0.76, p < 0.01). Results did not support the hypothesized relationship between CFC and indices of tobacco consumption and academic performance.Facultad de Ciencias Médica

Confiabilidad de la escala : Consideración de futuras consecuencias y correlato con tabaquismo y rendimiento académico

Introducción: El uso apropiado de la escala Consideración de Futuras Consecuencias requiere evidencias locales de sus propiedades. Objetivos: poner a prueba la estabilidad de las mediciones con la escala y explorar su correlato con el tabaquismo y rendimiento estudiantil. Método: se aplicó técnica de test y re-test con intervalo de 2 semanas y encuesta a 90 estudiantes universitarios. Se utilizó el promedio de calificaciones en evaluaciones parciales como indicador de rendimiento académico. Resultados: La correlación entre ambas administraciones para CFC Total fue alta y significativa (r = 0,80; p < 0,01; n = 81), al igual que para las sub-escalas (CFC-D r = 0,73; p < 0,01; CFC-P r = 0,76; p < 0,01). No se pudo sostener la hipótesis de relación entre CFC e indicadores de consumo tabáquico y rendimiento académico.Introduction: Appropriate use of the Consideration of Future Consequences (CFC) Scale requires development of empirical properties in specific locales. Objectives: To test the stability of the scale’s scores and explore the relationships between CFC scores and smoking and academic achievement. Method: Test-retest reliability was calculated using a two week interval of survey administration to 90 university students. GPA in psychiatry courses was the index of academic achievement. Results: CFC Total scores at test and retest administrations correlated strongly and significantly (r = 0.80, p < 0.01, n = 81), as did CFC subscale scores (CFC-D r = 0.73, p < 0.01; CFC-P r = 0.76, p < 0.01). Results did not support the hypothesized relationship between CFC and indices of tobacco consumption and academic performance.Facultad de Ciencias Médica

Exploración de un constructo relevante para la salud: la consideración de futuras consecuencias

Introducción: La consideración de futuras consecuencias es un factor que se relaciona con eventos de salud. Objetivo: explorar la distribución del constructo en población estudiantil y propiedades de escala de medición. Método: Se tomaron datos colectivamente a 120 estudiantes de nivel medio en La Plata, Argentina, con la escala Consideración de Futuras Consecuencias, luego de su traducción al español y retro-traducción al inglés. Resultados: Los valores totales se distribuyeron normalmente (Ẋ= 38,9; DE = 6,4; K-S = 0,06; p = 0,200). El valor del coeficiente alfa de Cronbach para la CFC total fue 0,58. Conclusión: Los hallazgos aportan preliminar sostén de la escala CFC, pero aún no son suficientes como para considerarla completamente confiable en la población estudiada.Facultad de Ciencias Médica

Exploración de un constructo relevante para la salud: la consideración de futuras consecuencias

Introducción: La consideración de futuras consecuencias es un factor que se relaciona con eventos de salud. Objetivo: explorar la distribución del constructo en población estudiantil y propiedades de escala de medición. Método: Se tomaron datos colectivamente a 120 estudiantes de nivel medio en La Plata, Argentina, con la escala Consideración de Futuras Consecuencias, luego de su traducción al español y retro-traducción al inglés. Resultados: Los valores totales se distribuyeron normalmente (Ẋ= 38,9; DE = 6,4; K-S = 0,06; p = 0,200). El valor del coeficiente alfa de Cronbach para la CFC total fue 0,58. Conclusión: Los hallazgos aportan preliminar sostén de la escala CFC, pero aún no son suficientes como para considerarla completamente confiable en la población estudiada.Facultad de Ciencias Médica

Performance of ALICE AD modules in the CERN PS test beam

Two modules of the AD detector have been studied with the test beam at the T10 facility at CERN. The AD detector is made of scintillator pads read out by wave-length shifters (WLS) coupled to clean fibres that carry the produced light to photo-multiplier tubes (PMTs). In ALICE the AD is used to trigger and study the physics of diffractive and ultra-peripheral collisions as well as for a variety of technical tasks like beam-gas background monitoring or as a luminometer. The position dependence of the modules' efficiency has been measured and the effect of hits on the WLS or PMTs has been evaluated. The charge deposited by pions and protons has been measured at different momenta of the test beam. The time resolution is determined as a function of the deposited charge. These results are important ingredients to better understand the AD detector, to benchmark the corresponding simulations, and very importantly they served as a baseline for a similar device, the Forward Diffractive Detector (FDD), being currently built and that will be in operation in ALICE during the LHC Runs 3 and 4.Peer reviewe

Charge separation relative to the reaction plane in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm NN}}= 2.76 TeV

Measurements of charge dependent azimuthal correlations with the ALICE detector at the LHC are reported for Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV. Two- and three-particle charge-dependent azimuthal correlations in the pseudo-rapidity range $|\eta| < 0.8$ are presented as a function of the collision centrality, particle separation in pseudo-rapidity, and transverse momentum. A clear signal compatible with a charge-dependent separation relative to the reaction plane is observed, which shows little or no collision energy dependence when compared to measurements at RHIC energies. This provides a new insight for understanding the nature of the charge dependent azimuthal correlations observed at RHIC and LHC energies.Comment: 12 pages, 3 captioned figures, authors from page 2 to 6, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/286

A note on comonotonicity and positivity of the control components of decoupled quadratic FBSDE

In this small note we are concerned with the solution of Forward-Backward Stochastic Differential Equations (FBSDE) with drivers that grow quadratically in the control component (quadratic growth FBSDE or qgFBSDE). The main theorem is a comparison result that allows comparing componentwise the signs of the control processes of two different qgFBSDE. As a byproduct one obtains conditions that allow establishing the positivity of the control process.Comment: accepted for publicatio

Multiplicity dependence of jet-like two-particle correlations in p-Pb collisions at sNN\sqrt{s_{NN}} = 5.02 TeV

Two-particle angular correlations between unidentified charged trigger and associated particles are measured by the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV. The transverse-momentum range 0.7 $< p_{\rm{T}, assoc} < p_{\rm{T}, trig} <$ 5.0 GeV/$c$ is examined, to include correlations induced by jets originating from low momen\-tum-transfer scatterings (minijets). The correlations expressed as associated yield per trigger particle are obtained in the pseudorapidity range $|\eta|<0.9$. The near-side long-range pseudorapidity correlations observed in high-multiplicity p-Pb collisions are subtracted from both near-side short-range and away-side correlations in order to remove the non-jet-like components. The yields in the jet-like peaks are found to be invariant with event multiplicity with the exception of events with low multiplicity. This invariance is consistent with the particles being produced via the incoherent fragmentation of multiple parton--parton scatterings, while the yield related to the previously observed ridge structures is not jet-related. The number of uncorrelated sources of particle production is found to increase linearly with multiplicity, suggesting no saturation of the number of multi-parton interactions even in the highest multiplicity p-Pb collisions. Further, the number scales in the intermediate multiplicity region with the number of binary nucleon-nucleon collisions estimated with a Glauber Monte-Carlo simulation.Comment: 23 pages, 6 captioned figures, 1 table, authors from page 17, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/161

Centrality dependence of charged particle production at large transverse momentum in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm{NN}}} = 2.76 TeV

The inclusive transverse momentum ($p_{\rm T}$) distributions of primary charged particles are measured in the pseudo-rapidity range $|\eta|<0.8$ as a function of event centrality in Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}=2.76$ TeV with ALICE at the LHC. The data are presented in the $p_{\rm T}$ range $0.15<p_{\rm T}<50$ GeV/$c$ for nine centrality intervals from 70-80% to 0-5%. The Pb-Pb spectra are presented in terms of the nuclear modification factor $R_{\rm{AA}}$ using a pp reference spectrum measured at the same collision energy. We observe that the suppression of high-$p_{\rm T}$ particles strongly depends on event centrality. In central collisions (0-5%) the yield is most suppressed with $R_{\rm{AA}}\approx0.13$ at $p_{\rm T}=6$-7 GeV/$c$. Above $p_{\rm T}=7$ GeV/$c$, there is a significant rise in the nuclear modification factor, which reaches $R_{\rm{AA}} \approx0.4$ for $p_{\rm T}>30$ GeV/$c$. In peripheral collisions (70-80%), the suppression is weaker with $R_{\rm{AA}} \approx 0.7$ almost independently of $p_{\rm T}$. The measured nuclear modification factors are compared to other measurements and model calculations.Comment: 17 pages, 4 captioned figures, 2 tables, authors from page 12, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/284