174,995 research outputs found
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[Letter from Ricardo Hernandez to D. Jack Davis, March 31, 1993]
No full textA letter from Ricardo Hernandez to D. Jack Davis, a co-director of the NTIEVA program. The letter is about the funding application to the TCA and includes a list of applicants and their information
One-loop effective potential in M4 x T2 with and without 't hooft flux
No full text43 pages, 3 figures.We review the basic notions of compactification in the presence of a back-
ground flux. In extra-dimentional models with more than five dimensions, Scherk
and Schwarz boundary conditions have to satisfy’t Hooft consistency conditions.
Different vacuum configurations can be obtained, depending whether trivial or
non-trivial’t Hooft flux is considered. The presence of the “magnetic” back-
ground flux provide, in addition, a mechanism for producing four-dimensional
chiral fermions. Particularizing to the six-dimensional case, we calculate the
one-loop effective potential for a U(N) gauge theory on M4 × T 2. We firstly
review the well known results of the trivial ’t Hooft flux case, where one-loop
contributions produce the usual Hosotani dynamical symmetry breaking. Finally
we applied our result for describing, for the first time, the one-loop contributions
in the non-trivial’t Hooft flux case.The work of A.F. Faedo, D. Hernandez and S. Rigolin has been partially
supported by CICYT through the project FPA2006-05423 and by CAM through the
project HEPHACOS, P-ESP-00346. D. Hern´andez acknowledges financial support
from the MEC through FPU grant AP-2005-3603. S.Rigolin aknowledges also the
partial support of an Excellence Grant of Fondazione Cariparo and of the European
Programme “Unification in the LHC era” under the contract PITN-GA-2009-237920
(UNILHC)Peer reviewe
[Braulio Hernandez]
No full textPhotograph of Braulio Hernandez visiting a grave. Text on the back of the photograph reads: "Braulio Hernandez visiting grave of friend killed in battle May 1911." The grave marker to the right reads: "MARIANO RIOS, FALLECIO A LOS 27 ANOS DE EDAD, MAYO 11 DE 1911, El Paso, Texas." The small headstone in the center reads: "Capitan D. Madrid." A car is visible in the background
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Dr. Hector P. Garcia sits between National Queen Priscilla D. Hernandez and a lady guest (photograph)
No full textDr. Hector P. Garcia sits between National Queen Priscilla D. Hernandez and a lady guest
Hernandez Church
No full textOil painting of the Hernandez adobe church in New Mexico against a backdrop of blue sky and foothills. The church is plastered in a light-colored stucco and there is a steeple with a cross at the top.There is a wall with an open doorway extending from the front of the church, creating a courtyard ourside the church entrance
Análisis de la satisfacción de clientes de supermercados. Caso Gran D Obrero
No full textAnálisis de la satisfacción de clientes de supermercados. Caso Gran D Obrer
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
Cultural capital and academic achievement: A mixed-methods study on the perceptions of students, families and school staff of three broad areas that may impact student learning during middle school.
No full textCULTURAL CAPITAL AND ACADEMIC ACHIEVEMENT: A MIXED-METHODS STUDY ON THE PERCEPTIONS OF STUDENTS, FAMILIES, AND SCHOOL STAFF ON THREE BROAD AREAS THAT MAY IMPACT STUDENT LEARNING DURING MIDDLE SCHOOL.
Frank Anthony Hernandez, EdD
University of Pittsburgh, 2017
Students from low socioeconomic status (SES) backgrounds, herein referred to as priority students, have historically struggled to maintain the same academic achievement as students from more advantaged backgrounds. Within the Panther Unified School District, between 40-49% of students qualify as coming from low SES backgrounds. These priority students have historically underperformed when compared to other students from more advantaged backgrounds within the district. The academic struggles of priority students are often increased during times of transition in their K-12 educational career (transition from elementary to middle and middle to high school). The Panther Unified School District graduating class of 2021 has 55 priority students that are in their final year of middle school. This class of students was investigated using a mixed-methods approach to determine which priority students experienced high and low academic achievement in their final two years of middle school and how three broad areas may have influenced their learning in middle school. Methods used included secondary data analysis, a focus group and a learning inventory activity. This study specifically sought to understand how family, school and student factors may have a positive and/or negative influence on the learning of the priority students over their final two years of middle school. Findings indicated that a majority of the priority students were not on track for career or college readiness, that positive and sustained teacher and adult relationships may be a great source of motivation and support for students from low SES backgrounds, and that many of the priority students lacked an ability to act as a self-change agent. This study suggests the value of identifying staff advocates for priority students within schools and that through teacher professional development on understanding the academic and social-emotional needs of many students from low SES backgrounds schools may leverage valuable staff and community resources to improve the academic performance of priority students
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