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Open Access Publications from the University of California

Department of Education - Open Access Policy Deposits

This series is automatically populated with publications deposited by UCLA Department of Information Studies researchers in accordance with the University of California’s open access policies. For more information see Open Access Policy Deposits and the UC Publication Management System.

Cover page of From Invisible to Visible: Documenting the Voices and Resilience of Central American Students in U.S. Schools

From Invisible to Visible: Documenting the Voices and Resilience of Central American Students in U.S. Schools

(2018)

Historically, scholars have researched and discussed Central Americans in fields such as sociology, migration studies, and anthropology. However, there is a limited amount of literature in the field of education and more so in higher education, that addresses the unique experiences of Central Americans in the U.S. educational system (Torres, 2004). As an part of a larger study, this paper documents and analyzes the testimonios of thirty-five first and second generation Central American youth who have attended high school and college in the U.S. By applying a Critical Race Theory (CRT) analysis (in conjunction with other frameworks) to the testimonios of the thirty-five youth, we find that amidst severe class, race, and gender discrimination in schools, the youth are able to be extremely resilient. Through their testimonios, we also argue that it is important for education systems to pay closer to attention to the heterogeneity of the Latinx population in the U.S. to not further marginalization already marginalized communities.

Cover page of The Persistence and Success of Latino Men in Community College

The Persistence and Success of Latino Men in Community College

(2021)

Guided by a phenomenological approach, this qualitative study examines the resilience and cultural wealth of Latino men as they navigate the transfer process at a two-year community college. This study conducted four semi-structured interviews to highlight how, despite facing difficult circumstances, individual factors along with their aspirational and navigational capital positively impact Latino men in higher education. Ultimately, this study aims for four things (a) to add to the limited amount of research of Latino men in community college (b) to display the success of Latino men in higher education (c) to challenge deficit notions of Latino men in higher education and (d) to provide findings that will inform the community college sector of the Latino men transfer experience.

Cover page of U.S. Central Americans: reconstructing memories, struggles, and communities of resistance

U.S. Central Americans: reconstructing memories, struggles, and communities of resistance

(2018)

U.S. Central Americans: Reconstructing Memories, Struggles, and Communities of Resistance is a critical anthology focusing on the narratives, experiences, and complexities of the Central American diaspora. Historically, scholarly work has addressed Central Americans through the eyes of “outsiders”, trauma, war, and violence; while this anthology highlights those very real and traumatic histories, it also centralizes the histories of Central American resilience and resistance. At a time when Central American youth are migrating to the U.S. alone and the presidential administration sees Central American youth and their families as bargaining chips in immigration policy, this anthology presents us with a critical examination of the U.S. interventions that have propelled migration to the U.S. Within a U.S. context, the contributing authors examine questions of identity, cultural production, gendered experiences, and transnationalism. Although the anthology is not grounded in the field of education, it is a valuable contribution to any scholar who is invested in Latinx student success and equity by providing the language and analysis necessary to understand the complexities and heterogeneity of Latinxs in the U.S.

Cover page of EDUCACIÓN

EDUCACIÓN

(2015)

EDUCACIÓN is a piece that brings my work as an artist, educator, activist, and scholar together. It is a re-interpretation of the original border crossing sign displayed on the Interstate 5 near the San Diego-Tijuana border.

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Cover page of Book Review: Strategies of Segregation: Race, Residence, and the Struggle for Educational Equality. By David G. García.

Book Review: Strategies of Segregation: Race, Residence, and the Struggle for Educational Equality. By David G. García.

(2023)

Through in-depth archival research, David G. García offers a historical narrative on the educational inequalities in Oxnard, CA in between 1903 and 1974.

Cover page of Deep Generative Models for Fast Photon Shower Simulation in ATLAS

Deep Generative Models for Fast Photon Shower Simulation in ATLAS

(2024)

The need for large-scale production of highly accurate simulated event samples for the extensive physics programme of the ATLAS experiment at the Large Hadron Collider motivates the development of new simulation techniques. Building on the recent success of deep learning algorithms, variational autoencoders and generative adversarial networks are investigated for modelling the response of the central region of the ATLAS electromagnetic calorimeter to photons of various energies. The properties of synthesised showers are compared with showers from a full detector simulation using geant4. Both variational autoencoders and generative adversarial networks are capable of quickly simulating electromagnetic showers with correct total energies and stochasticity, though the modelling of some shower shape distributions requires more refinement. This feasibility study demonstrates the potential of using such algorithms for ATLAS fast calorimeter simulation in the future and shows a possible way to complement current simulation techniques.

Software Performance of the ATLAS Track Reconstruction for LHC Run 3

(2024)

Charged particle reconstruction in the presence of many simultaneous proton–proton (pp) collisions in the LHC is a challenging task for the ATLAS experiment’s reconstruction software due to the combinatorial complexity. This paper describes the major changes made to adapt the software to reconstruct high-activity collisions with an average of 50 or more simultaneous pp interactions per bunch crossing (pile-up) promptly using the available computing resources. The performance of the key components of the track reconstruction chain and its dependence on pile-up are evaluated, and the improvement achieved compared to the previous software version is quantified. For events with an average of 60pp collisions per bunch crossing, the updated track reconstruction is twice as fast as the previous version, without significant reduction in reconstruction efficiency and while reducing the rate of combinatorial fake tracks by more than a factor two.

Search for the nonresonant production of Higgs boson pairs via gluon fusion and vector-boson fusion in the bb¯τ+τ− final state in proton-proton collisions at s=13  TeV with the ATLAS detector

(2024)

A search for the nonresonant production of Higgs boson pairs in the HH→bb¯τ+τ− channel is performed using 140  fb−1 of proton-proton collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. The analysis strategy is optimized to probe anomalous values of the Higgs boson self-coupling modifier κλ and of the quartic HHVV (V=W,Z) coupling modifier κ2V. No significant excess above the expected background from Standard Model processes is observed. An observed (expected) upper limit μHH<5.9(3.3) is set at 95% confidence-level on the Higgs boson pair production cross section normalized to its Standard Model prediction. The coupling modifiers are constrained to an observed (expected) 95% confidence interval of −3.1<κλ<9.0 (−2.5<κλ<9.3) and −0.5<κ2V<2.7 (−0.2<κ2V<2.4), assuming all other Higgs boson couplings are fixed to the Standard Model prediction. The results are also interpreted in the context of effective field theories via constraints on anomalous Higgs boson couplings and Higgs boson pair production cross sections assuming different kinematic benchmark scenarios. © 2024 CERN, for the ATLAS Collaboration 2024 CERN

Measurement of the VH,H → ττ process with the ATLAS detector at 13 TeV

(2024)

A measurement of the Standard Model Higgs boson produced in association with a W or Z boson and decaying into a pair of τ-leptons is presented. This search is based on proton-proton collision data collected at s=13 TeV by the ATLAS experiment at the LHC corresponding to an integrated luminosity of 140 fb−1. For the Higgs boson candidate, only final states with at least one τ-lepton decaying hadronically (τ→hadrons+ντ) are considered. For the vector bosons, only leptonic decay channels are considered: Z→ℓℓ and W→ℓνℓ, with ℓ=e,μ. An excess of events over the expected background is found with an observed (expected) significance of 4.2 (3.6) standard deviations, providing evidence of the Higgs boson produced in association with a vector boson and decaying into a pair of τ-leptons. The ratio of the measured cross-section to the Standard Model prediction is μVHττ=1.28−0.29+0.30(stat.)−0.21+0.25(syst.). This result represents the most accurate measurement of the VH(ττ) process achieved to date.