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Improving Pedestrian Safety Using Video Data, Surrogate Safety Measures And Deep Learning, Shile Zhang Jan 2021

Improving Pedestrian Safety Using Video Data, Surrogate Safety Measures And Deep Learning, Shile Zhang

Electronic Theses and Dissertations, 2020-2023

The research aims to improve pedestrian safety at signalized intersections using video data, surrogate safety measures and deep learning. Machine learning (including deep learning) models are proposed for predicting pedestrians' potentially dangerous situations. On the one hand, pedestrians' red-light violations can expose the pedestrians to motorized traffic and pose potential threats to pedestrian safety. Thus, the prediction of pedestrians' crossing intention during red-light signals is carried out. The pose estimation technique is used to extract features on pedestrians' bodies. Machine learning models are used to predict pedestrians' crossing intention at intersections' red-light, with video data collected from signalized intersections. Multiple …


Examining The Effects Of Implementation Of I-Ready To Fidelity On Reading And Its Effects On Free Or Reduced Lunch Students In Seven Middle Schools, Ryan Martin Jan 2021

Examining The Effects Of Implementation Of I-Ready To Fidelity On Reading And Its Effects On Free Or Reduced Lunch Students In Seven Middle Schools, Ryan Martin

Electronic Theses and Dissertations, 2020-2023

The purpose of this study was to contribute to the literature and to policy and practice in the educational field on how individual student diagnostic scores was affected in the area of reading. This study specifically examined full or partial fidelity of implementation of the iReady reading instructional and computerized program was applied in seven middle schools in a school district in Central Florida for all students in intensive reading courses. Additionally, this study contributed to how individual student diagnostic scores was affected in the area of reading for students on free or reduced lunch. Data were analyzed from the …


Critical Modding: A Design Framework For Exploring Representation In Games, Kenton Howard Jan 2021

Critical Modding: A Design Framework For Exploring Representation In Games, Kenton Howard

Electronic Theses and Dissertations, 2020-2023

In this project, I created a framework for exploring problems with representations of marginalized characters in video games called "critical modding." The main goal of this project was to provide a method for addressing issues with portrayals of queer characters in video games through modification of a game's narrative and gameplay systems. I also created a video game prototype called Life in the Megapocalypse as a digital tool for engaging in critical modding. In addition, I created classroom assignments based on the game prototype aimed at helping people learn more about problems with portrayals of queer characters in games through …


Qualitative Reconceptualizations Of Success In Physics From A Feminist Lens, Brian Zamarripa Roman Jan 2021

Qualitative Reconceptualizations Of Success In Physics From A Feminist Lens, Brian Zamarripa Roman

Electronic Theses and Dissertations, 2020-2023

To address the critical issue of the underrepresentation of women in physics, the Physics Education Research community has focused on exploring the factors contributing to student success; however, few studies have explored the meaning of success in physics as seen by women and other marginalized populations. This study, guided by Feminist Standpoint Theory and Critical Race Nepantlera Methodologies, incorporates qualitative methods to explore the central question, "how do women in physics conceptualize the meaning of success in physics?" We begin with an analysis of metaphors of success in physics constructed by nine women studying physics at a single institution, followed …


Atomic-Scale Simulation Of Dissipation And Adhesion During Interactions Between Mineral Surfaces, Baochi Doan Jan 2021

Atomic-Scale Simulation Of Dissipation And Adhesion During Interactions Between Mineral Surfaces, Baochi Doan

Electronic Theses and Dissertations, 2020-2023

Adhesion and dissipation during surface interactions are important phenomena with wide applications in materials science, including cold-spray technology for additive manufacturing and stiction in MEMS (Mircro ElectroMechanical Systems). In planet formation theories, energy dissipation in collisions between mineral grains is important to the formation of dust-grain aggregates and planetesimals. Early contact mechanics theories such as Hertz and Johnson-Kendall-Roberts have laid theoretical foundations for understanding these phenomena. Recently, there are breakthroughs in using non-equilibrium thermodynamics methods to elucidate dissipation. For example, the Green-Kubo method can calculate transport coefficients based on the Fluctuation-Dissipation theorem, and Jarzynski equality can be used to determine …


Trauma, Resilience, And Empowerment: Post-Genocide Experiences Of Yezidi Women, Tutku Ayhan Ergin Jan 2021

Trauma, Resilience, And Empowerment: Post-Genocide Experiences Of Yezidi Women, Tutku Ayhan Ergin

Electronic Theses and Dissertations, 2020-2023

Under what conditions do women become more resilient and empowered in post conflict settings? Utilizing data from multi site fieldwork in northern Iraq, Germany, and the U.S. involving over 160 in depth interviews, this dissertation addresses this question by studying the experiences of Yezidi women who were subject to genocidal violence by the Islamic State in Iraq in 2014. By adopting an intersectional approach, it contributes to feminist research on post conflict dynamics and suggests that how women cope with trauma and achieve positive changes in their lives depends on a variety of factors. Age, history of sexual violence and …


Contextualizing The Acute Responses To Arm Cycling, Nicolas Clark Jan 2021

Contextualizing The Acute Responses To Arm Cycling, Nicolas Clark

Electronic Theses and Dissertations, 2020-2023

The prescription of aerobic exercise modalities engaging the arm musculature have the potential to extend the reach of physical activity and promote cardiorespiratory fitness in individuals with lower body impairment due to excessive body mass, and among individuals seeking to complement and diversify standard leg training. This study compared the acute cardiopulmonary responses obtained during arm cycling and leg cycling performed at different intensities among lean and average (LA) and overfat and obese individuals (OFO). Participants were 37 young and relatively healthy adults. They were tested for mode-specific peak power output and work rate at ventilatory threshold during two randomized …


Exergoeconomic Analysis And Optimization Of Novel Cogeneration Systems For Freshwater Production, Power And Cooling, Sattam Alharbi Jan 2021

Exergoeconomic Analysis And Optimization Of Novel Cogeneration Systems For Freshwater Production, Power And Cooling, Sattam Alharbi

Electronic Theses and Dissertations, 2020-2023

Global consumption of energy and freshwater is increasing continuously due to population growth and improving living standards. The world energy consumption is anticipated to increase by around 50% by 2050 according to the U.S Energy Information Administration (EIA). There is also very limited access to freshwater and cooling in many developing countries. Therefore, developing an efficient energy system, recovering the waste heat (cogeneration system or multigeneration) to produce freshwater and cooling, and using a renewable energy source are promising solutions to meet the energy demand and to reduce environment pollution associated with fossil fuels. In this study, several novel cogeneration …


Self-Governed Iot Networks: A Blockchain-Based Framework, Mehrdad Salimitari Jan 2021

Self-Governed Iot Networks: A Blockchain-Based Framework, Mehrdad Salimitari

Electronic Theses and Dissertations, 2020-2023

In the modern-day, IoT-enabled devices and sensors are growingly deployed in a variety of applications in consumer, commercial, industrial, and infrastructure spaces. Thus, decentralization of such networks for reducing the maintenance and repair costs is significantly gaining attention. In this dissertation, we investigate a variety of mathematical tools and technological advancements to design a secure, fully decentralized, and self-governed IoT network. On this path, the main challenge is ensuring the data integrity in IoT networks, securing the devices against a variety of attack scenarios, and preserving the privacy of the users. We begin by proposing a prospect theoretic method for …


Processing Of 3d Porous Biomaterial Scaffolds To Enhance The In Vitro Breast Cancer Tumor Microenvironment, Zi Wang Jan 2021

Processing Of 3d Porous Biomaterial Scaffolds To Enhance The In Vitro Breast Cancer Tumor Microenvironment, Zi Wang

Electronic Theses and Dissertations, 2020-2023

Tumors contain heterogeneous cell populations within the tumor microenvironment (TME). TME supports tumor progression and development via the function of multiple cell types and cell-extracellular matrix (ECM) interactions. 3D porous biomaterial scaffolds can be a type of in vitro tumor models to mimic TME ECM. Current tumor models lack structural complexity replicating tumor ECM, tunable mechanical properties, and have limited mass exchange between cells and their microenvironment. In this work, we firstly developed scaffolds with a hierarchical pore structure via the Freeze-FRESH(FF) fabrication technique that combines 3D printing and freeze-casting. Later, we studied the effect of varying processing parameters and …


Measurement And Mitigation Of Optical, Recombination And Resistive Losses In Silicon Photovoltaics, Mohammad Jobayer Hossain Jan 2021

Measurement And Mitigation Of Optical, Recombination And Resistive Losses In Silicon Photovoltaics, Mohammad Jobayer Hossain

Electronic Theses and Dissertations, 2020-2023

Today, most of the photovoltaic cells in the market are made of silicon. Great achievements are being attained every year in terms of reducing the price of this kind of cells and improving their efficiency, reliability and durability. However, further improving the cell performance is a challenging task because of the presence of optical, recombination and resistive loss mechanisms in the cell. This work is focused on the measurement and mitigation of these losses. Mitigation of the optical, recombination and resistive losses at first require quantifying those losses and their impacts on the cell performance metrics accurately. Traditionally, solar cells …


Breaking News: The Presence Of Framing In Partisan Cable News Network's Coverage Of Officers Murdering Black Victims, Andrea Smith Jan 2021

Breaking News: The Presence Of Framing In Partisan Cable News Network's Coverage Of Officers Murdering Black Victims, Andrea Smith

Electronic Theses and Dissertations, 2020-2023

This study analyzed how the most partisan cable news networks, FOX News and MSNBC, framed victims and officers in their coverage of cases where officers murder Black victims. In addition, this work investigated how these networks discussed systemic racism within their reports. Using Feagin's white racial frame as a framework, the findings suggest that both networks exhibited anti-black and pro-white framing within their reports, although the frequency and the severity varied across networks. Results also show when counter framing was present, MSNBC still perpetuated the anti-black and pro-white frames. These results have implications for how media should improve their coverage …


Understanding Variation In Sexual Exploitation And Abuse In Un Pkos: The Role Of Military, Police, And Civilian Peacekeepers, Gabriella Cuber Jan 2021

Understanding Variation In Sexual Exploitation And Abuse In Un Pkos: The Role Of Military, Police, And Civilian Peacekeepers, Gabriella Cuber

Electronic Theses and Dissertations, 2020-2023

Apart from perpetuating human rights violations in fragile contexts, sexual exploitation and abuse (SEA) in UN peacekeeping operations (PKOs) reduces the international community's ability to pursue peacebuilding missions, threatens the legitimacy of ongoing missions, and undermines gender equality efforts in the host country. While previous research has investigated patterns of SEA violations by peacekeepers, most studies limit their focus on abuses by military and police personnel. This study expands on these studies by examining SEA violations committed by civilian peacekeepers in addition to military and police personnel, as well as separately. I argue that several other determinants beyond military attributes …


Online Organizational Citizenship Behavior: An Exploration Of New Avenues For Prosocial Behavior In The Digital Age, Sarah Rabon Jan 2021

Online Organizational Citizenship Behavior: An Exploration Of New Avenues For Prosocial Behavior In The Digital Age, Sarah Rabon

Electronic Theses and Dissertations, 2020-2023

Internet use has changed modern workplaces and introduced new options for employee behavior, including organizational citizenship behavior (OCB). While prior research suggests the internet is a unique social environment, and not a simple extension of a traditional in-person workplace, OCB has not been studied in this context. This thesis aimed to identify and document the nature of online OCB and identify how it differs in form and function from traditional in-person OCB. This thesis used a mixed methods approach, with self-report data from 201 participants. Results indicate workers engage in OCB online at a lower rate than in person. Some …


Fabrication Of High-Frequency Piezoelectric Resonant Micro-Accelerometers Based On Capacitive Loading Effect, Ankesh Todi Jan 2021

Fabrication Of High-Frequency Piezoelectric Resonant Micro-Accelerometers Based On Capacitive Loading Effect, Ankesh Todi

Electronic Theses and Dissertations, 2020-2023

In this thesis, a high-frequency resonant accelerometer is presented. This novel sensor was designed to operate in 10's of MHz frequency range utilizing an out-of-plane capacitive mechanism for acceleration sensing. The sensor is comprised of a 2-port RF MEMS piezoelectric resonator, operating at 27MHz, and a Capacitive Mass-spring structure. One of the resonator ports is electrically connected to the variable capacitor in the mass-spring structure. The acceleration is measured utilizing a piezoelectric stiffening mechanism, where a change in the termination impedance of a piezoelectric resonant body would result in a shift in the resonance frequency of the resonator. The acceleration …


The Motuporamines Act Through Rho1 And Rac To Control Actin Dynamics In Drosophila, Corey Seavey Jan 2021

The Motuporamines Act Through Rho1 And Rac To Control Actin Dynamics In Drosophila, Corey Seavey

Electronic Theses and Dissertations, 2020-2023

Given that most cancer patients die from metastatic disease, there is an urgent need to develop drugs that inhibit the spread of tumors. Studies show that the motuporamines activate the small GTPase RhoA to prevent cancer cell migration, but little is known about the mechanism of action of dihydromotuporamine C (Motu33) and its synthetic derivative Motu-(CH2)-33. In the present study, I investigated the biomolecular processes of these compounds in Drosophila by reducing the gene dose of positive and negative regulators of actin dynamics. Consistent with previous findings, reduced gene dose of Rho1 (the Drosophila RhoA ortholog) attenuates motuporamine activity confirming …


A Quasi-Experimental Study Of The Relationship Between Teaching Intensive Reading Using Novels And Student Skills In English Language Arts, Sarah Brevoort Jan 2021

A Quasi-Experimental Study Of The Relationship Between Teaching Intensive Reading Using Novels And Student Skills In English Language Arts, Sarah Brevoort

Electronic Theses and Dissertations, 2020-2023

Many research-based reading interventions exist, but little literature examines teaching secondary reading using entire novels as an intervention. This quasi-experimental study examined the relationship between whether entire novels were included in secondary intensive reading and students' English language arts skills. Data were collected through an online survey of eight reading teachers from one Florida school district. Data collected by the survey were teacher qualifications, inclusion of entire novels in reading curriculum, and implementation of research-based teaching strategies. Survey data, Florida Standards Assessment of English Language Arts (FSA ELA) student scores, student demographics and reading placement data were analyzed to answer …


"Do You Hear What I Say?" A Phenomenological Exploration Of International Students' Oral Communication Experiences With Pechakucha Oral Presentations In A Us English For Academic Purposes Program., Van Thi Hong Le Jan 2021

"Do You Hear What I Say?" A Phenomenological Exploration Of International Students' Oral Communication Experiences With Pechakucha Oral Presentations In A Us English For Academic Purposes Program., Van Thi Hong Le

Electronic Theses and Dissertations, 2020-2023

With the importance of oral communication skills and digital literacy skills for 21st-century learners (Partnership for 21st Century Skills, 2006), there is an increasing tendency to incorporate technology in language learning and teaching. In this trend, PechaKucha Presentation (PKP), a unique, fast-paced format of giving presentations, has recently been advocated for its benefits in developing learners' oral communication skill in various contexts (Angelina, 2019; Coskun, 2017; Mabuan, 2017). This paper presented a study that explored seven international students' speaking and listening experiences with PKP activities while completing the English for Academic Purposes (EAP) program prior to their undergraduate programs in …


Parameter Calibration And Optimization In Smart Grid For Synchronous Generators And Converters, Seyyed Rashid Khazeiynasab Jan 2021

Parameter Calibration And Optimization In Smart Grid For Synchronous Generators And Converters, Seyyed Rashid Khazeiynasab

Electronic Theses and Dissertations, 2020-2023

In power systems, monitoring, protection, and control are usually model based; an accurate dynamic model for either synchronous generators or power electronic converters is essential. Besides, renewable energies, smart loads, energy storage, and new market behavior add new sources of uncertainty to power systems. Therefore, planning in real-time and developing high-quality models is crucial to adapt to uncertainties. In this thesis, we propose a framework for validating and calibrating power system models using novel methods. At the first step, we developed the nonlinear sensitivity-based method to find the critical parameters. Then, we propose an Approximate Bayesian Computation (ABC) based method …


Design-Based Research Toward A Professional Development Program, Karl Miehl Jan 2021

Design-Based Research Toward A Professional Development Program, Karl Miehl

Electronic Theses and Dissertations, 2020-2023

The purpose of this dissertation in practice was twofold; The first purpose was to design a Professional Development (PD) program for a specialized group of civilian employees working in a large military organization, and the second purpose was to evaluate and refine that PD program using mixed-methods empirical research. The study focused on a group of approximately 100 Instructional System Specialists and Research Psychologists. These employees are highly educated, with the majority holding advanced degrees in their respective fields, yet they lacked a clear path to career development within their organization. Following the tenets of design-based research, a PD program …


Dynamic Analysis Of The Implementation Of The Blockchain Technology In The Supply Chain, Rehab Ali Jan 2021

Dynamic Analysis Of The Implementation Of The Blockchain Technology In The Supply Chain, Rehab Ali

Electronic Theses and Dissertations, 2020-2023

Blockchain technology is a new digital technology that has been disrupting the way businesses are performing. It is a decentralized and distributed ledger that enables transactions of any form of value. As blockchain technology provides visibility, transparency, and security through the multi-agent system, the supply chain sector is one of its critical and promising applications. In a highly dynamic environment, the supply chain's efficiency needs to be measured from a blockchain perspective. As the main benefit of blockchain technology is the visibility and real-time access to data, blockchain technology's preeminent affected areas within the supply chain are the responsiveness to …


Evaluating Source Water Quality, Pretreatment, And Particulate Mass Transport In A Nanofiltration Membrane Process, Courtney Powell Jan 2021

Evaluating Source Water Quality, Pretreatment, And Particulate Mass Transport In A Nanofiltration Membrane Process, Courtney Powell

Electronic Theses and Dissertations, 2020-2023

This document details the source and occurrence of particulates in a nanofiltration (NF) process, considers the implementation of additional pretreatment to improve feedwater quality, and investigates the impact of submicron particles on membrane performance. Much of this research was performed in cooperation with the City of Boynton Beach (City) at the West Water Treatment Plant (WTP) and stemmed from particulate fouling concerns in the pretreatment and NF membrane processes. The water quality of the individual wells that supply the West WTP was evaluated to identify the source of particulates which overload the pre-filters (5-μm cartridge filters) and may contribute to …


The Effect Of Polyelectrolyte Modification Of Ultrafiltration Membranes On Fouling Resistance And Rejection Of Contaminants Of Emerging Concern, Kunal Olimattel Jan 2021

The Effect Of Polyelectrolyte Modification Of Ultrafiltration Membranes On Fouling Resistance And Rejection Of Contaminants Of Emerging Concern, Kunal Olimattel

Electronic Theses and Dissertations, 2020-2023

This research attempted to leverage the unique properties of poly (allylamine hydrochloride) (PAH)/poly (acrylic acid) (PAA) bilayer coatings to enhance antifouling and antimicrobial properties of a commercially available ultrafiltration (UF) membrane as well as the removal of PFOA and PFOS—the two CECs that most frequently represent the class of PFAS. The effects of selected water matrix components (humic acids [HA] and cations) on PFOA and PFOS removals were also investigated when using the functionalized membrane. PAH/PAA films were first deposited on the membrane using a fluidic layer by layer (LbL) technique and then crosslinked, followed by embedding of the silver …


Hotspot Cooling Performance For Confined Jet Impingement Cooling, Tanvir Ahmed Chowdhury Jan 2021

Hotspot Cooling Performance For Confined Jet Impingement Cooling, Tanvir Ahmed Chowdhury

Electronic Theses and Dissertations, 2020-2023

The current trend in microelectronics is to manufacture devices with increased computational powers and reduced size. These devices with increased power densities are consequently subject to extreme thermal loads. Thermal management of these power loads is extremely challenging. The presence of the hotspots can make this challenge even more difficult. Jet impingement cooling is one of the top candidates for removing such extreme heat fluxes in microelectronics. Jet impingement cooling can achieve heat transfer coefficients (HTCs) due to its normal incident flow-field and ability to thin the local thermal boundary layer in the stagnation region. This dissertation presents the hotspot …


Remediation Of Roadway Runoff Nutrients: Querying Sources Delivery Mechanism, Efficacy Of Stormwater Best Management Practices, And Stormwater Routing Through Karst Geology, Mohammad Shokri Jan 2021

Remediation Of Roadway Runoff Nutrients: Querying Sources Delivery Mechanism, Efficacy Of Stormwater Best Management Practices, And Stormwater Routing Through Karst Geology, Mohammad Shokri

Electronic Theses and Dissertations, 2020-2023

Stormwater road runoff is a widespread non-point source of contaminants such as nutrients, which endangers water bodies, especially in vulnerable karst areas such as Florida. While roadside vegetated filter strips (VFSs) and stormwater basins are generally accepted best management practices (BMPs) for stormwater management, uncertainties about VFS nutrient removal are reported and stormwater basins are concerned of facilitating contaminant transport. In this dissertation, the application and efficacy of engineered infiltration media was tested as a subgrade for the enhanced nutrient removal from roadway runoff. Results of field-scale laboratory testing indicated that a VFS with engineered biosorption activated media (BAM) outperformed …


Ultraviolet Solar Blind Ga2o3-Based Photodetectors, Isa Hatipoglu Jan 2021

Ultraviolet Solar Blind Ga2o3-Based Photodetectors, Isa Hatipoglu

Electronic Theses and Dissertations, 2020-2023

Detection within the deep ultraviolet (DUV) region (˜200-280 nm) offers unique fundamental advantages to probe certain optical traces. Therefore, many applications have emerged including flame and missile detection, and non-line of sight and space-to-space communication. Ga2O3 has become a natural choice for DUV detection owing to its intrinsic ultra-wide optical bandgap (˜4.85 eV), extrinsic n-type dopability, and excellent chemical and physical stability. However, Ga2O3 has no viable p-type doping to date, and fabricated photodetectors show only partial coverage of the entire solar-blind region (˜200-245nm). Furthermore, there is a limited understanding of how various growth parameters for ß-Ga2O3 and its alloys …


The Effects Of A Remote Based Exercise Intervention On Psychosocial Factors In Young Adults With Autism Spectrum Disorder, Juan Mayo Jan 2021

The Effects Of A Remote Based Exercise Intervention On Psychosocial Factors In Young Adults With Autism Spectrum Disorder, Juan Mayo

Electronic Theses and Dissertations, 2020-2023

AIM: The aim for this study was to identify the effects of physical activity (PA) on the psychosocial factors (PA self-efficacy, enjoyment of PA, perceived stress, and depression) amongst young adults with Autism Spectrum Disorder (ASD) through the use of a 12-week remotely prescribed exercise program. METHODSs: This quasi-experimental study consisted of a 12-week remote-based exercise intervention (and a no-exercise control group) for young adults (18 – 35 years) with ASD. Participants were recruited through the Center for Autism and Related Disabilities (CARD), an organization that provides resources to individuals with ASD and their families. The exercise program occurred twice …


Incongruous Surrealism Within Narrative Animated Film, Daniel Mccabe Jan 2021

Incongruous Surrealism Within Narrative Animated Film, Daniel Mccabe

Electronic Theses and Dissertations, 2020-2023

A pop music video is a form of media containing incongruous surrealistic imagery with a narrative structure supplied by song lyrics. The lyrics' presence allows filmmakers to digress from sequential imagery through introduction of nonlinear visual elements. I will analyze these surrealist film elements through several post-modern philosophies to better understand how this animated audio-visual synthesis resides in the larger world of art theory and its relationship to the popular music video. This analysis coincides with the practical and theoretical experimentation evident in the film companion to this thesis, Slapper the Cat: A Musical Cartoon. A long-form animated music video …


Examining The Values In Our Valued Practices: Universal Design Principles As A Catalyst For Tutor Reflection, Eric Wisz Jan 2021

Examining The Values In Our Valued Practices: Universal Design Principles As A Catalyst For Tutor Reflection, Eric Wisz

Electronic Theses and Dissertations, 2020-2023

Recent writing center scholarship has discussed the roles of valued practices in writing centers and the implications Universal Design (UD) for writing center work. This thesis extends such lines of inquiry by bringing these two conversations together to explore the potential of UD principles as a catalyst for writing center tutor reflection on valued tutoring practices. In a semester long study, data were collected in the form of individual and dialogic tutor reflection through surveys, individual interviews, reflective writing prompts, and a focus group. The data were analyzed to examine how tutors formed their tutoring practices and how they understood …


Initiation Of Alcohol Use In College Students, Gabrielle Lynch Jan 2021

Initiation Of Alcohol Use In College Students, Gabrielle Lynch

Electronic Theses and Dissertations, 2020-2023

Alcohol use contributes to widespread harm in college students, and postponing initiation of drinking can reduce negative consequences and risk for developing an alcohol use disorder (Palmer et al., 2010). This study focused on variables related to initiation of alcohol use among new students, and maintenance of abstinence among those who chose not to drink. Data was collected from 467 first year college students, 7.5% of whom initiated alcohol use in college, 33% had never consumed alcohol, and 59.5% started drinking before starting college. Several a- priori hypotheses were supported. Perceptions of peer drinking/attitudes mediated the relationship between academic involvement …