2,234 research outputs found
Latino Youth and the Pathway to College
Outlines the pathway to and through postsecondary education for Latinos, and looks at a number of variables that offer insight into how motivated and prepared these students are for postsecondary work
Latino High School & Baccalaureate Graduates: A Comparison
Part of a series that documents the challenges facing Latino students as they progress through the educational system. Examines the primary differences between Latino and white students for those who completed a BA and other levels of education
From Middle School to the Workforce: Latino Students in the Educational Pipeline
Part of a series that documents the challenges facing Latino students as they progress through the educational system. Analyzes 1988-2000 NELS data to track students from eighth grade through high school, postsecondary education, and on to the workforce
Pathways to the Bachelor's Degree for Latino Students
Part of a series that documents the challenges facing Latino students as they progress through the educational system. Focuses on students who attained a BA, and the major factors that had an impact on their ability to navigate the educational system
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Connecting school and home: Examining parental and school involvement in readiness for college through multilevel SEM
Parental involvement is widely acknowledged as a critical factor influencing the college choice process among families. What is not clear, though, is whether this parental driven factor also takes place at the school level along with school related factors. Using a national sample of 9th grade students drawn from about 900 schools, we found that parental involvement also operates at the school context along with a high school’s academic press. Moreover, at both individual- and school-level contexts, parental involvement creates a “college-going” cultural capital in the form of attainment of milestones towards college
Microstructure and Mechanical Properties of AA6082-T6 by ECAP Under Warm Processing
An AA6082 alloy deformed by equal channel angular pressing (ECAP) was studied. Microstructural evolution of the alloy processed by ECAP with different passes were evaluated by using optical microscope, scanning electron microscopy coupled with an electron backscattered diffraction (EBSD) detector and X-ray diffraction. Texture analysis showed the apparition of two types of textures, one associated with shearing deformation and the second due to the recrystallization phenomena. Mechanical strength properties measured by tensile tests increased in the first ECAP pass, and then progressively diminished due to the presence of concurrent softening phenomena. Calorimetric analysis indicated a slightly increase in the recrystallization temperature of the deformed specimens. Also, the stored energy increased with increasing ECAP passes due to the production of new dislocations. The average geometrically necessary dislocation density, measured by EBSD, increased with increasing ECAP passes. However, the rate of increase slows down with the progress of ECAP passes.Fil: Khelfa, T.. Northwestern Polytechnical University; China. University of Sfax; TĂşnezFil: Muñoz Bolaños, Jairo Alberto. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de FĂsica de Rosario. Universidad Nacional de Rosario. Instituto de FĂsica de Rosario; Argentina. Universidad PolitĂ©cnica de Catalunya; EspañaFil: Li, F.. Northwestern Polytechnical University; ChinaFil: Cabrera -Marrero, J. M.. Universidad PolitĂ©cnica de Catalunya; EspañaFil: Khitouni, M.. University of Sfax; TĂşne
The Geology of Chile
6 páginas.-- Book review of "The Geology of Chile", by Teresa Moreno and Wes
Gibbons (eds.) (2007). Geological Society. London
(United Kingdom). 414 pages, 286 figures including
maps, charts and pictures; 27, 5 x 21 cm, ISBN 978-1-
86239-219-9 (hardback) and ISBN 978-1-86239-220-5
(softback).Peer reviewe
Propagation of gravity waves and spread F in the low-latitude ionosphere over Tucumán, Argentina, by continuous Doppler sounding: first results
Results of systematic analysis of propagation directions and horizontal velocities of gravity waves (GWs) and spread F structures in low-latitude ionosphere (magnetic inclination ~27°) in Tucumán region, Argentina, are presented. Measurements were carried out by multipoint continuous Doppler system during 1 year from December 2012 to November 2013. It was found that meridian propagation of GWs dominated and that southward propagation prevailed in the local summer. Oblique spread structures observed in Doppler shift spectrograms and associated with spread F propagated roughly eastward at velocities from ~70 to ~180 m/s and were observed at night from ~ September to ~ March. The velocities were computed for 182 events and the azimuths for 64 events. Continuous Doppler sounding makes it possible to analyze more events compared to optical observations often used for propagation studies since the measurements do not depend on weather.Fil: Chum, J.. Institute of Atmospheric Physics; RepĂşblica ChecaFil: Miranda Bonomi, Fernando Alberto. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y TecnologĂa. Departamento de Electricidad, ElectrĂłnica y ComputaciĂłn. Laboratorio de Telecomunicaciones; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Fišer, J.. Institute of Atmospheric Physics; RepĂşblica ChecaFil: Cabrera, M. A.. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y TecnologĂa. Departamento de Electricidad, ElectrĂłnica y ComputaciĂłn. Laboratorio de Telecomunicaciones; Argentina. Universidad TecnolĂłgica Nacional. Facultad Regional Tucuman; ArgentinaFil: Ezquer, Rodolfo Gerardo. Universidad TecnolĂłgica Nacional. Facultad Regional Tucuman; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y TecnologĂa. Departamento de FĂsica. Laboratorio de Ionosfera; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Burešová, D.. Institute of Atmospheric Physics; RepĂşblica ChecaFil: LaštoviÄŤka, J.. Institute of Atmospheric Physics; RepĂşblica ChecaFil: Baše, J.. Institute of Atmospheric Physics; RepĂşblica ChecaFil: Hruška, F.. Institute of Atmospheric Physics; RepĂşblica ChecaFil: Molina, Maria Graciela. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y TecnologĂa. Departamento de Ciencias de la ComputaciĂłn; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Ise, Juan Eduardo. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y TecnologĂa. Departamento de Electricidad, ElectrĂłnica y ComputaciĂłn. Laboratorio de Telecomunicaciones; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Cangemi, JosĂ© Ignacio. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y TecnologĂa. Departamento de Electricidad, ElectrĂłnica y ComputaciĂłn. Laboratorio de Telecomunicaciones; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Ĺ indelářová, T.. Institute of Atmospheric Physics; RepĂşblica Chec
Bayesian approach and Naturalness in MSSM analyses for the LHC
The start of LHC has motivated an effort to determine the relative
probability of the different regions of the MSSM parameter space, taking into
account the present, theoretical and experimental, wisdom about the model.
Since the present experimental data are not powerful enough to select a small
region of the MSSM parameter space, the choice of a judicious prior probability
for the parameters becomes most relevant. Previous studies have proposed
theoretical priors that incorporate some (conventional) measure of the
fine-tuning, to penalize unnatural possibilities. However, we show that such
penalization arises from the Bayesian analysis itself (with no ad hoc
assumptions), upon the marginalization of the mu-parameter. Furthermore the
resulting effective prior contains precisely the Barbieri-Giudice measure,
which is very satisfactory. On the other hand we carry on a rigorous treatment
of the Yukawa couplings, showing in particular that the usual practice of
taking the Yukawas "as required", approximately corresponds to taking
logarithmically flat priors in the Yukawa couplings. Finally, we use an
efficient set of variables to scan the MSSM parameter space, trading in
particular B by tan beta, giving the effective prior in the new parameters.
Beside the numerical results, we give accurate analytic expressions for the
effective priors in all cases. Whatever experimental information one may use in
the future, it is to be weighted by the Bayesian factors worked out here.Comment: LaTeX, 19 pages, 3 figure
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