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Full-Text Articles in Entire DC Network
Implementation Of The Signs Of Suicide Prevention Program With 9th Grade Students In A Public School Setting, Jessica Tennant
Implementation Of The Signs Of Suicide Prevention Program With 9th Grade Students In A Public School Setting, Jessica Tennant
Graduate Theses, Dissertations, and Problem Reports (ETD)
This quality improvement project examined the effectiveness of the use of the Signs of Suicide Prevention Program for educating 9th grade students. Pre-tests and post-tests were administered to twelve participating students which focused on knowledge about depression, suicide and suicide prevention. A t-test was performed to evaluate a difference in pre-test and post-test scores. A single open-ended question was included on the post-test, "Please write 2 things you could do to prevent suicide?" Results were found to be statistically significant (t(11) = 4.432, p=11), 95% confidence interval (-2.49, -0.84). The overall mean difference was -1.67. Additional descriptive data was collected …
Redox Stable Anode Materials For Sofc Application, Tony Thomas
Redox Stable Anode Materials For Sofc Application, Tony Thomas
Graduate Theses, Dissertations, and Problem Reports (ETD)
The common material design for solid-oxide fuel cells (SOFCs) is based on the cermet (ceramic-metal composite) material group, for example anode compositions like nickel with yttria stabilized zirconia (Ni/YSZ). One of the main limitations of these material groups is that they may undergo unwanted thermal expansion during redox cycles, causing dimensional instability at the anode. The state-of-the-art Ni/YSZ anode experiences a linear expansion of up to 1% when oxidized, causing an irreversible microstructural change, decreasing the electrochemical activity. The problem cumulatively increases if the cell design is anode supported as this puts the electrolyte under tension, causing it to crack …
Transitions Within Opioid Therapy And Their Impact On Morbidity, Healthcare Utilization, And Costs, James Douglas Thornton
Transitions Within Opioid Therapy And Their Impact On Morbidity, Healthcare Utilization, And Costs, James Douglas Thornton
Graduate Theses, Dissertations, and Problem Reports (ETD)
In the United States (US), chronic non-cancer pain (CNCP) is prevalent among adults with costs exceeding half a billion dollars annually and can be especially burdensome for working age adults due to lost productivity and negative impacts on quality of life.An estimated 43% of adults experience pain, and the majority of them are working age (22--64 years). Despite lack of robust evidence on the efficacy and effectiveness of opioids relieving CNCP, and currently-available effective non-opioid treatments, many patients still receive opioid therapy. Opioids are associated with significant negative health consequences up to and including addiction to opioids which further increases …
Presidential Executive Orders: The Bureaucracy, Congress, And The Courts, Michael Edward Thunberg
Presidential Executive Orders: The Bureaucracy, Congress, And The Courts, Michael Edward Thunberg
Graduate Theses, Dissertations, and Problem Reports (ETD)
Primary immune deficiencies (PIDs) are genetic disorders that lead to defects in normal immune responses. While the causative gene for many of the more severe defects is known, new defects leading to additional syndromes are being described with increasing frequency. The most common group of PIDs are the primary antibody deficiencies (PADs), which manifest with low serum immunoglobulin levels, defective responses to vaccinations, and, for most, recurrent infections. In this work, we explore the genetic basis of common variable immune deficiency (CVID), the most common symptomatic PID, and related PADs using next-generation sequencing technology. In a large cohort of patients …
Think Twice Before Hitting 'Send': The Strategic Uses Of Information In Marketing Channels, Pui Ying Tong
Think Twice Before Hitting 'Send': The Strategic Uses Of Information In Marketing Channels, Pui Ying Tong
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation examines the growing problem of information overload in the context of marketing channels. Information overload occurs when shared information requires more mental resources to process than the mental resources available to the receiver. This research offers strategies to attenuate information overload and examines the impact of information overload on channel outcomes. Strategic uses of information are proposed and conceptualized as a sender's alteration of information volume, content, and/or timing to assist a receiver in processing information. Hypotheses are developed based on the normative perspective of communication from the organizational communication literature. Data from 244 salespeople are analyzed using …
Using Material Culture Lessons To Cultivate Artistic Behaviors And Enrich Students' Conceptual Understanding In An Urban Middle School Classroom, Emily Turner
Graduate Theses, Dissertations, and Problem Reports (ETD)
Within art education there is a contradiction between learning opportunities currently provided within the middle school art classroom, specifically in relation to media, and authentic contemporary artistic behavior and practice. Art educators focus instruction on traditional forms of media (i.e. drawing & painting) while evading contemporary art and artists. Much of what contemporary art is today is represented through everyday objects/materials and educators must provide students with an opportunity to experience both inquiry and contemporary art-making through media outside of the canon. Our personal identity, culture, and reality are composed of material forms, which often go unnoticed due to the …
Analytical Modelling Of The Effects Of Different Gas Turbine Cooling Techniques On Engine Performance = Analytische Modellierung Der Wirkungen Von Verschiedenen Kuhlungskonfigurationen Der Turbinenschaufeln Auf Der Gasturbinenleistung, Selcuk Can Uysal
Graduate Theses, Dissertations, and Problem Reports (ETD)
In this research, MATLAB SimulinkRTM was used to develop a cooled engine model for industrial gas turbines and aero-engines. The model consists of uncooled on-design, mean-line turbomachinery design and a cooled off-design analysis in order to evaluate the engine performance parameters by using operating conditions, polytropic efficiencies, material information and cooling system details. The cooling analysis algorithm involves a 2nd law analysis to calculate losses from the cooling technique applied. The model is used in a sensitivity analysis that evaluates the impacts of variations in metal Biot number, thermal barrier coating Biot number, film cooling effectiveness, internal cooling effectiveness and …
Performance Practice And Overview Of Selected Piano Works Of Barbara Kolb, Chiao Su Joyce Wang
Performance Practice And Overview Of Selected Piano Works Of Barbara Kolb, Chiao Su Joyce Wang
Graduate Theses, Dissertations, and Problem Reports (ETD)
Barbara Kolb (b. 1939), one of the many lesser-known American avant-gardes, composed several unique works that symbolize what we consider American Art Music of late 1970s. Kolb survived with short periods of college institutional teaching and sustained her musical life mostly with commissions, scholarships, and award recognitions for her tremendous compositional output. The biographical information in this study gives several perspectives of Kolb's personal life: her persistence to pursue a career in music and also to maintain a private life. To serve as a reference for piano instructors or performers, this work journals performance challenges, options, and technical concerns with …
Secrets And Lies: A Profile-Based Examination Of Youth And Parent Information Management Strategies And Adolescent Electronic Cigarette Use, Desiree N. Williford
Secrets And Lies: A Profile-Based Examination Of Youth And Parent Information Management Strategies And Adolescent Electronic Cigarette Use, Desiree N. Williford
Graduate Theses, Dissertations, and Problem Reports (ETD)
Introduction: The use of electronic cigarettes is growing among adolescents residing in the United States, tripling in prevalence over the past few years. Yet, electronic cigarettes are relatively new and there is limited research on parent and youth behavior and information management strategies as they relate to adolescent use of electronic cigarettes. Objective: The current study had a primary goal of utilizing a profile-based analytic procedure (cluster analysis) to explore patterns among these variables and investigate relations to adolescent use of electronic cigarettes. Method: A total of 562 high school students between the ages of 13 and 18 years (M …
Exploring The Power Of County-Level Regional Classifications On Predicting Sex-Specific All-Cause Mortality In The United States, Julia Kay Wolf
Exploring The Power Of County-Level Regional Classifications On Predicting Sex-Specific All-Cause Mortality In The United States, Julia Kay Wolf
Graduate Theses, Dissertations, and Problem Reports (ETD)
Sex-specific mortality rates have been found to differ across regions of the United States; however, these areas are typically the broad Census Bureau regions (i.e., Midwest, Northeast, South, and West) that do not consider sociological factors known to affect health. By testing the predictive capabilities of theoretically driven regional classifications distinguished at county-level, I explore whether there are more accurate ways of assessing mortality differences across the United States. Specifically, I use the US Census Bureau divisions and regional groupings produced by Joel Garreau (1981) and Colin Woodard (2011) to predict sex-specific, age-adjusted, all-cause mortality for 2008-2012 (centered on 2010). …
Glow Discharge Mass Spectrometric Determination Of Selected Biological Species, Xiaqing Xu
Glow Discharge Mass Spectrometric Determination Of Selected Biological Species, Xiaqing Xu
Graduate Theses, Dissertations, and Problem Reports (ETD)
Glow discharge mass spectrometry (GDMS) is widely used for trace elemental analysis of solid samples. A glow discharge source employs cathodic sputtering to release cathode species to the gas phase and subsequent collisional ionization of the sputtered species in the plasma. Ions representing the cathode material are differentiated by mass-to-charge values and then recorded by mass spectrometry. A pulsed radio frequency (RF) glow discharge time-of-flight mass spectrometry (GD-TOF MS) is employed in this study for its unique advantages, including the capability of direct analysis of nonconducting solids, temporal separation of ionization mechanisms, and the ability to acquire a complete spectrum …
Preparation Of Sicnfs Composite Anode By Electrophoretic Deposition (Epd), Meng Yao
Preparation Of Sicnfs Composite Anode By Electrophoretic Deposition (Epd), Meng Yao
Graduate Theses, Dissertations, and Problem Reports (ETD)
Recently, lithium ion batteries (LIBs) have been widely used in the field of portable electronic devices and electric vehicles due to high adaptability, high working voltage and low toxicity. However, traditional electrode materials have greatly limited the future of LIBs because of their low theoretical specific capacities; meanwhile, new electrode materials always need to be prepared by complicated and expensive methods, indicating the small probability of large-scale promotion. In this study, the Si/CNFs composite film anode without any binder by a simple and effective method - electrophoretic deposition (EPD) - is developed, which exhibits improved electrochemical properties.;This thesis is firstly …
Buying Thebes: Promoting A Cultural Commonwealth In Contemporary Anglophone Adaptations Of Greek Tragedy, Phillip Zapkin
Buying Thebes: Promoting A Cultural Commonwealth In Contemporary Anglophone Adaptations Of Greek Tragedy, Phillip Zapkin
Graduate Theses, Dissertations, and Problem Reports (ETD)
This project argues that theatrical adaptations of Greek tragedy exemplify the functioning of a cosmopolitan cultural commonwealth. Dramatists like Christine Evans, Colin Teevan, David Greig, Marina Carr, Femi Osofisan, Moira Buffini, and Yael Farber enact intercultural collaborations to reshape material from a cultural common and make that material meaningful for contemporary audiences. This collaborative ethos of drawing from shared source material undermines the logic of neoliberal late capitalism, which is premised on property ownership and individualist competition. "Buying Thebes" contributes to adaptation studies scholarship by theorizing a political economy of adaptation, combining both a formal reading of adaptation as an …
An Insulating Constriction Dielectrophoresis Based Microfluidic Device For Protein Biomolecules Concentration, Peng Zhang
Graduate Theses, Dissertations, and Problem Reports (ETD)
Sample enrichment or molecules concentration has been considered as an essential step for sample processing and biomarker detection recently in many applications involving miniaturized devices aiming at biosensing and bioanalysis, including the development of specialized tests for the detection of specific proteins and antibodies in human blood with the help of microfluidic and lab-on-a-chip devices. Among all the means involved to achieve this aim, dielectrophoresis (DEP) is increasingly employed in molecule manipulation and concentration because it is non-destructive and ensures high efficiency. However, there are still constraints on implementing the required functions using the dielectrophoresis technique in the devised micro-scale …
Selected Topics In Image Super-Resolution: Guided Image And Learning Representation, Wentian Zhou
Selected Topics In Image Super-Resolution: Guided Image And Learning Representation, Wentian Zhou
Graduate Theses, Dissertations, and Problem Reports (ETD)
Obtaining high-resolution images is a fundamental challenge for many vision related tasks. It is highly desirable to develop effective and efficient super-resolution algorithms to enhance the spatial resolution of acquired images. However, estimating high-resolution images is an ill-posed problem where a large set of possible solutions exist. To make this inverse problem more tractable, it is often necessary to constrain the targeted high-resolution image with a priori information (i.e., in model-based approaches) or to assume the availability of additional training data (i.e., in learning-based approaches). In this dissertation, we propose to (i) use simultaneous-sparse-coding and machine learning techniques to incorporate …
The Transformation Of Occupations: A Case Study Of Professionalism In Cocktail Bartending, Jacqueline Fowler
The Transformation Of Occupations: A Case Study Of Professionalism In Cocktail Bartending, Jacqueline Fowler
Graduate Theses, Dissertations, and Problem Reports (ETD)
One focus in the sociology of work and occupations literature concerns the phenomena by which occupations transform into skilled professions. This study focuses on a craft cocktail bar and the attending cocktail bartenders as a case study of occupational professionalization. Cocktail bartenders are uniquely suited for this type of inquiry, as many aspects of their occupation carry the markers of professionalism, such as mastery of a skill, a deep understanding of their field, and their potential to be cultural intermediaries.;This study utilizes observation and interviews to elucidate how bartenders define themselves, their work, and their occupation as a whole. By …
Social Capital Structure And Dynamics In Stream Restoration: A Social Network Analysis Approach To The Upper Shavers Fork, West Virginia, Paul J. Kinder Jr.
Social Capital Structure And Dynamics In Stream Restoration: A Social Network Analysis Approach To The Upper Shavers Fork, West Virginia, Paul J. Kinder Jr.
Graduate Theses, Dissertations, and Problem Reports (ETD)
Streams are common pool resources embedded in watersheds representing complex socio-ecological systems that provide ecological goods and services as well as economic and social benefits. They have been referred to as the lifeblood of civilization. Streams, however, are among the most vulnerable natural resources globally to anthropocentric impacts and are all too often in need of restoration. While the primary objective of stream restoration is to bring back healthy ecological functions, other benefits and outcomes from restoration efforts exist, but are often overlooked. These benefits and outcomes relate to effective natural resource governance systems, which rely on social networks comprised …
Engineered Inks For Environment-Friendly Additive Manufacturing Of Hierarchical Microstructures, Maria Alejandra Torres Arango
Engineered Inks For Environment-Friendly Additive Manufacturing Of Hierarchical Microstructures, Maria Alejandra Torres Arango
Graduate Theses, Dissertations, and Problem Reports (ETD)
Novel material synthesis and green engineering innovations in manufacturing are important enablers of new technologies. Here, a range of functional materials systems and their processing through additive manufacturing are investigated. The materials studied consist of Ag, ZnO and TiO2 based inks for additive manufacturing with potential application across multiple technological fields.;In particular, the synthesis of multi-functional emulsion inks, and their deposition through continuous-flow direct writing are investigated. Highlights of this work include the study of the curing/sintering conditions of such ink systems aiming for fundamental insights in their synthesis at low-temperatures (below 150°C), compatible with flexible polymeric substrates. Also, the …
The Quest For A Key Gene Controlling Acquisition Of Cell Competence During In Vitro Organogenesis In Tomato, Chanaka Roshan Abeyratne
The Quest For A Key Gene Controlling Acquisition Of Cell Competence During In Vitro Organogenesis In Tomato, Chanaka Roshan Abeyratne
Graduate Theses, Dissertations, and Problem Reports (ETD)
Plants show a remarkable capacity for vegetative propagation through de novo organogenesis. Unlike their wild relatives, most commercially important crop species lack this ability, which is largely attributed to their inability to acquire regeneration competence by dedifferentiation of somatic cells. In vitro micropropagation relies heavily on overcoming such regeneration recalcitrance for its success in biotechnology and clonal propagation in agriculture. Here, we investigate a key locus (Regeneration1) responsible for acquisition of competence that confers high rates of de novo shoot and root organogenesis in tomato. In vitro shoot regeneration assay was performed in several Solanum pennellii introgression lines into S. …
Performance Of The Horizontal Wells In A Naturally Fractured Carbonate Reservoir, Fuad Al-Bayati
Performance Of The Horizontal Wells In A Naturally Fractured Carbonate Reservoir, Fuad Al-Bayati
Graduate Theses, Dissertations, and Problem Reports (ETD)
About 60 percent of the world's proven oil reserves and 40 percent of gas reserves are trapped in carbonate reservoirs. Recovery rates are relatively low in carbonate reservoirs, and it is extremely challenging to predict due to the heterogeneous nature of these reservoirs. The majority of carbonate reservoirs contain fractures which may vary in size from millimeters to kilometers. A typical example of this type of reservoirs is oil and gas fields in the northern Iraq. These fields are almost all developed by vertical wells. This study will investigate the use of horizontal wells to enhance the productivity in one …
Novel Mechanisms Controlling The Expression Of The Antidiabetic Hepatokine Fibroblast Growth Factor 21, Kimberly M. Alonge
Novel Mechanisms Controlling The Expression Of The Antidiabetic Hepatokine Fibroblast Growth Factor 21, Kimberly M. Alonge
Graduate Theses, Dissertations, and Problem Reports (ETD)
The incidence of obesity has increased at an alarming rate during the past thirty years. Current therapies for the treatment and prevention of obesity and metabolic syndrome are ineffective and/or produce undesirable side effects. Fibroblast growth factor 21 (FGF21) is a liver derived hormone that mediates adaptive changes in hepatic glucose and lipid metabolism by elevating energy expenditure and reducing lipid storage. Pharmacological administration of FGF21 analogs in both animal and human models induces striking reversals of obesity and type 2 diabetes. However, the activity of FGF21 analogs exhibit short half-lives in blood circulation and are unsuitable for current treatment. …
Three Essays On International Mobility And Economic Development, Imran Arif
Three Essays On International Mobility And Economic Development, Imran Arif
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation contains research on three topics in economic development. The main argument of this dissertation is that when societies interact, they learn new ideas, superior technologies, and new production processes from each other. Any barriers to this interaction can hurt the diffusion of ideas across nations. Chapter 1 tests the relationship between international travel and institutions. This paper features a neglected channel of institution convergence among countries, i.e., international travel. International travel clearly increases human interaction over space and exposes societies to foreign influences, foreign ideas, and foreign institutions. Does international travel promote institutional change in a traveler's home …
Carbon Dioxide Capture Using Amine Functionalized Carbonaceous Materials From Bio-Refinery Waste Streams, Emmanuel Atta-Obeng
Carbon Dioxide Capture Using Amine Functionalized Carbonaceous Materials From Bio-Refinery Waste Streams, Emmanuel Atta-Obeng
Graduate Theses, Dissertations, and Problem Reports (ETD)
One of the greatest challenges in the world today is to replace exhaustible fossil fuel resources with renewable alternatives that will satisfy the increasing worldwide energy and chemical demands in a sustainable way. Using renewable precursors has a low impact on environmental health since it reduces pollution, greenhouse gas emissions and limits global warming and problems associated with waste management. Lignocellulosic biomass is the most available feedstock for developing sustainable chemicals and energy. A major challenge to the efficiency of the forest biorefinery industry is lack of suitable technologies for the conversion of its waste or by-products (lignin and hemicelluloses) …
Electrical Percolation Threshold Of Magnetostrictive Inclusions In Piezo-Electric Matrix Composite As A Function Of Relative Particle Size, Antoine Joseph Bedard Jr.
Electrical Percolation Threshold Of Magnetostrictive Inclusions In Piezo-Electric Matrix Composite As A Function Of Relative Particle Size, Antoine Joseph Bedard Jr.
Graduate Theses, Dissertations, and Problem Reports (ETD)
Magnetoelectric (ME) composites can be produced by placing magnetostrictive particles in a piezoelectric-matrix. Ferrite magnetostrictive (H) particles, if allowed to percolate, can short the potential difference generated in the piezoelectric (E) phase. This work focuses on modeling an ME composite as bi-disperse hard shells with the magnetostrictive H particles scaled to 100nm where particle dynamics is used to explore relationships among relative particle size, particle affinity, and electrical percolation with the goal of maximizing the percolation threshold. It was found that the two factors that increase the H to H intra-phase percolation threshold are: (1) the size of H particles …
Interactions Between Euwallacea Ambrosia Beetles, Their Fungal Symbionts And The Native Trees They Attack In The Eastern United States, Matthew C. Berger
Interactions Between Euwallacea Ambrosia Beetles, Their Fungal Symbionts And The Native Trees They Attack In The Eastern United States, Matthew C. Berger
Graduate Theses, Dissertations, and Problem Reports (ETD)
In a globalized world, wood products are constantly being shipped from one location to another, along with tiny hitchhikers in the form of insects and microorganisms. Euwallacea validus is a fungus-farming ambrosia beetle native to East Asia that likely made its way to the United States in wood packaging materials in the latter half of the twentieth century. E. validus cultivates two fungal symbionts in the U.S., an unnamed Fusarium sp. (AF-4) and Raffaelea subfusca. Fusarium symbionts of Euwallacea ambrosia beetles as well as Raffaelea symbionts of closely related ambrosia beetles have incited widespread disease on more than one-hundred hosts …
Narrow Representation? The Impact Of Implicitly And Explicitly Racial Issues On Opinion And Representation, Franchesca V. Nestor
Narrow Representation? The Impact Of Implicitly And Explicitly Racial Issues On Opinion And Representation, Franchesca V. Nestor
Graduate Theses, Dissertations, and Problem Reports (ETD)
My dissertation combines knowledge from the opinion, racial and ethnic politics, and representation literatures to examine Black and Latino opinion and representation on racially salient issues. I theorize that representation of Blacks and Latinos is a "narrow" representation, much more in line with Black and Latino opinion on issues that are explicitly, rather than implicitly, racial. To test this theory, I build upon the literature by considering intersectional identity and multiple methods of representation. In Chapter 2, I examine two questions: when do income and racial group differences occur on racially salient issues, and if splits occur between respondents of …
Fit To Be Tied: Social Network Structures And Evaluation Apprehension, Andrew L. Nicholson
Fit To Be Tied: Social Network Structures And Evaluation Apprehension, Andrew L. Nicholson
Graduate Theses, Dissertations, and Problem Reports (ETD)
In everyday life, people are typically connected to others, and these variably strong connections facilitate social influence related to a range of phenomena, from shaping body image and, impacting self-esteem to shaping behaviors through exhibiting social norms. Although the strongest ties (those most intimate and influential) can be very important to a person, there can also be a fear of judgement (i.e., evaluation apprehension) in those relationships. In online social networks, the relationship between tie strength and evaluation apprehension may emerge differently than in offline spaces due to affordances of social media, the asynchronous nature of computer-mediated communication, and the …
Enhancing Student Perceptions Of Middle Eastern People And Culture Through Music, Dance, Folk Literature, Culture, And Virtual Field Trips, Jason A. Noland
Enhancing Student Perceptions Of Middle Eastern People And Culture Through Music, Dance, Folk Literature, Culture, And Virtual Field Trips, Jason A. Noland
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study aimed to build on previous research by creating a multidisciplinary unit of study incorporating music, dance, folk literature, and cultural highlights that originate from the Middle East - coupled with virtual field trips to areas in the region to give greater depth to the students' understanding of the Middle East and its people. The study was completed with rural upper-elementary students in West Virginia who were participating in a summer program aimed at low-income students to assist them in increasing or maintaining reading levels over summer break, as well as providing two meals a day. Initial and endpoint …
Beyond Oraldigital: Ghanaian Electronic Literature As A Paradigm For African Digital Textuality, Kwabena Opoku-Agyemang
Beyond Oraldigital: Ghanaian Electronic Literature As A Paradigm For African Digital Textuality, Kwabena Opoku-Agyemang
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation speaks to a massive dearth of research in African electronic literature (African e-lit), a discipline that boasts a growing number of works but little scholarship. With African literature incorporating digital technology into its creative process, and with electronic literary criticism focusing on areas outside its predominantly western cannon, African e-lit positions itself as an important area of scholarly endeavor. After considering the implications of placing African e-lit as the direction in which both African literature and electronic literature take, this dissertation looks at three different genres of African e-lit in the context of oral literature. There are analyses …
The Influence Of Police Profanity On Public Perception Of Excessive Force, Christina Patton
The Influence Of Police Profanity On Public Perception Of Excessive Force, Christina Patton
Graduate Theses, Dissertations, and Problem Reports (ETD)
Previous research has examined elements of police performance impacting community policing and police-citizen relationships, but no study has considered the impact of police use of profanity during arrest on public rating of force. Police profanity may negatively bias police-citizen interactions, and this bias could shape later interactions with community members, decrease the quality of police-community relations, or even result in public outcry over excessive use of force (White, Cox, & Baseheart, 1994). Further, profanity increases recipient physiological arousal in some settings (LaPointe, 2006) and aggressive behavior, which may exacerbate risk to the officer during an arrest and lead to more …