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2012

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Articles 15901 - 15930 of 19478

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Modification Of Turbulent Transport With Continuous Variation Of Flow Shear In The Large Plasma Device, David A. Schaffner, T. A. Carter, G. D. Rossi, D. S. Guice, J. E. Maggs, S. Vincena, B. Friedman Jan 2012

Modification Of Turbulent Transport With Continuous Variation Of Flow Shear In The Large Plasma Device, David A. Schaffner, T. A. Carter, G. D. Rossi, D. S. Guice, J. E. Maggs, S. Vincena, B. Friedman

Physics Faculty Research and Scholarship

Continuous control over azimuthal flow and shear in the edge of the Large Plasma Device (LAPD) has been achieved using a biasable limiter which has allowed a careful study of the effect of flow shear on pressure-gradient-driven turbulence and transport in the LAPD. The LAPD rotates spontaneously in the ion diamagnetic direction; positive limiter bias first reduces, then minimizes (producing a near-zero shear state), and finally reverses the flow into the electron diamagnetic direction. Degradation of particle confinement is observed in the minimum shearing state and a reduction in the turbulent particle flux is observed with increasing shearing in both …

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Automated System To Improve Levelness Of Reconstructed Soil, Venkata Srikiran Bodapati, Larry G. Wells Jan 2012

Automated System To Improve Levelness Of Reconstructed Soil, Venkata Srikiran Bodapati, Larry G. Wells

Biosystems and Agricultural Engineering Faculty Publications

Extraction of coal, ores, and minerals from the earth by surface mining has occurred for many years and has always presented a significant challenge with regard to restoration of productive soil to mined areas. Federal and state regulations require that land should be returned to pre-mine productivity or reclaimed as per specific standards following mining. Excessive compaction of reconstructed soil caused by traffic of heavy earth moving equipment has been an enduring challenge regarding successful restoration of soil. A mechanical system was previously designed and developed to reconstruct soil to a depth of 1.22 m (48 in.) while completely avoiding …

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Parsing The Relationship Between Baserunning And Batting Abilities Within Lineups, Ben S. Baumer, James Piette, Brad Null Jan 2012

Parsing The Relationship Between Baserunning And Batting Abilities Within Lineups, Ben S. Baumer, James Piette, Brad Null

Statistical and Data Sciences: Faculty Publications

A baseball team's offensive prowess is a function of two types of abilities: batting and baserunning. While each has been studied extensively in isolation, the effects of their interaction is not well understood. We model offensive output as a scalar function f of an individual player's batting and baserunning profile z. Each of these profiles is in turn estimated from Retrosheet data using heirarchical Bayesian models. We then use the SimulOutCome simulation engine as a method to generate values of f(z) over a fine grid of points. Finally, for each of several methods of taking the extra base, we graphically …

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The Variations Of Geomagnetic Energy And Solar Irradiance And Their Impacts On Earth's Upper Atmosphere, Yanshi Huang Jan 2012

The Variations Of Geomagnetic Energy And Solar Irradiance And Their Impacts On Earth's Upper Atmosphere, Yanshi Huang

Physics Dissertations - Archive

The primary energy sources of Earth's upper atmosphere are the solar irradiance and geomagnetic energy including Joule heating and particle precipitation. Various data and models are utilized to investigate the variations of energy inputs and their influences on the coupled thermosphere-ionosphere system. First, the Flare Irradiance Spectral Model (FISM) has been used and the data show that the solar irradiance enhancement has wavelength dependence during flare events, and it increased largest in the XUV range. NCAR Thermosphere-Ionosphere-Electrodynamics General Circulation Model (TIE-GCM) simulations for the X17.2-class flare event on October 28th, 2003 (X17.2) show that the impact of solar irradiance enhancement …

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Multi Person Tracking And Querying With Heterogeneous Sensors, Shahina Ferdous Jan 2012

Multi Person Tracking And Querying With Heterogeneous Sensors, Shahina Ferdous

Computer Science and Engineering Dissertations - Archive

Tracking the location of a user is considered to be the most fundamental step for creating a context aware application, such as activity monitoring in an assistive environment. This problem becomes very challenging if there are multiple people involved in this scenario. The reason is that any multi-person environment, such as a hospital, demands simultaneous identification and localization mechanisms, thus making the system very complex. In this dissertation, we present a novel, less-intrusive system that uses RFIDs and sensors deployed at various locations of an assistive apartment to continuously track and identify every person in a multi-person assistive environment. Our …

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Prescribed Grazing On Pasturelands, Lynn E. Sollenberger, Carmen T. Agouridis, Eric S. Vanzant, Alan J. Franzluebbers, Lloyd B. Owens Jan 2012

Prescribed Grazing On Pasturelands, Lynn E. Sollenberger, Carmen T. Agouridis, Eric S. Vanzant, Alan J. Franzluebbers, Lloyd B. Owens

Biosystems and Agricultural Engineering Faculty Publications

No abstract provided.

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Elderly Onset Of Weakness In Facioscapulohumeral Muscular Dystrophy, Dominic B. Fee Jan 2012

Elderly Onset Of Weakness In Facioscapulohumeral Muscular Dystrophy, Dominic B. Fee

Neurology Faculty Publications

A 77-year-old male is presented. He had onset of proximal weakness 10 years earlier. His course was slowly progressive. Despite having phenotypic features of facioscapulohumeral muscular dystrophy (FSH), genetic testing for this was delayed because of his age of onset, lack of family history, and benign appearing muscle biopsy. This case is one of the oldest onset of weakness in genetically confirmed FSH and highlights the recognized expansion in phenotype that has occurred since the advent of genetic testing.

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Watching Children: A History Of America's Race To Educate Kids And The Creation Of The 'Slow-Learner' Subject, Jeffrey C. Frenkiewich Jan 2012

Watching Children: A History Of America's Race To Educate Kids And The Creation Of The 'Slow-Learner' Subject, Jeffrey C. Frenkiewich

Doctoral Dissertations

On January 25, 2011, United States President Barack Obama delivered his State of the Union address to Congress and to the nation. As part of that address, President Obama articulated his vision for American education and stated that America had "to win the race to educate our kids" (Obama, 2011, state of the union). Mr. Obama's speech and his "Race to the Top" policy stand as statements in a discourse that expects fast-paced education based on universal standards and quantitative measures. Tracing a history of American schooling, one sees that this discourse has been dominant in this society for most …

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Sterol Lipid Metabolism In Down Syndrome Revisited: Down Syndrome Is Associated With A Selective Reduction In Serum Brassicasterol Levels, Gavin Tansley, Daniel T. Holmes, Dieter Lütjohann, Elizabeth Head, Cheryl L. Wellington Jan 2012

Sterol Lipid Metabolism In Down Syndrome Revisited: Down Syndrome Is Associated With A Selective Reduction In Serum Brassicasterol Levels, Gavin Tansley, Daniel T. Holmes, Dieter Lütjohann, Elizabeth Head, Cheryl L. Wellington

Pharmacology and Nutritional Sciences Faculty Publications

Over the past 15 years, insights into sterol metabolism have improved our understanding of the relationship between lipids and common conditions such as atherosclerosis and Alzheimer's Disease (AD). A better understanding of sterol lipid metabolism in individuals with Down Syndrome (DS) may help elucidate how this population's unique metabolic characteristics influence their risks for atherosclerosis and AD. To revisit the question of whether sterol lipid parameters may be altered in DS subjects, we performed a pilot study to assess traditional serum sterol lipids and lipoproteins, as well as markers of sterol biosynthesis, metabolites, and plant sterols in 20 subjects with …

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Aging And Down Syndrome, Elizabeth Head, Wayne Silverman, David Patterson, Ira T. Lott Jan 2012

Aging And Down Syndrome, Elizabeth Head, Wayne Silverman, David Patterson, Ira T. Lott

Pharmacology and Nutritional Sciences Faculty Publications

No abstract provided.

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Ontology Management For Universities, Roland Böving Jan 2012

Ontology Management For Universities, Roland Böving

Theses

What is the 'knowledge' of a university? It is the sum of all experiences and all contributions of students and staff. Knowledge ultimately exists, among other things, in the form of theses, articles, lectures and research reports. The largest knowledge pool of a university is made up, however, of the knowledge and expertise of every single member of the university. As a result of the high rate of turnover of people, knowledge and expertise are on the one hand constantly being lost, but this is replaced by a fresh intake of upcoming young students and lecturers reflecting the spirit of …

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Characterisation Of Crataegus Monogyna Fractions And Assessment Of Their Functional Properties, Eilish Shortle Jan 2012

Characterisation Of Crataegus Monogyna Fractions And Assessment Of Their Functional Properties, Eilish Shortle

Theses

Hawthorn {Crataegus monogyna) is a herb that has been used medicinally since ancient times. In modern medicine it is known for its cardiotonic properties and is used as a cardiovascular protective, hypotensive and hypocholesterolemic agent. In recent years supercritical fluid extraction (SFE) has become more popular as an extraction method for botanical material as it is an environmentally-friendly method that can produce toxic-free extracts. The optimal SFE extraction conditions for the extraction of antioxidant compounds from both, hawthorn leaf & dower and hawthorn berries, using carbon dioxide, were determined in this study. The optimized extracts were then compared to pre-prepared …

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Late Removal Of Titanium Hardware From The Elbow Is Problematic, Abdo Bachoura, Ruriko Yoshida, Christian Lattermann, Srinath Kamineni Jan 2012

Late Removal Of Titanium Hardware From The Elbow Is Problematic, Abdo Bachoura, Ruriko Yoshida, Christian Lattermann, Srinath Kamineni

Orthopaedic Surgery and Sports Medicine Faculty Publications

A retrospective review of 21 patients that underwent bone screw removal from the elbow was studied in relation to the type of metal, duration of implantation, and the location of the screws about the elbow. Screw failure during extraction was the dependent variable. Five of 21 patients experienced hardware failure during extraction. Fourteen patients had titanium alloy implants. In four cases, titanium screws broke during extraction. Compared to stainless steel, titanium screw failure during removal was not statistically significant (P = 0.61). Screw removal 12 months after surgery was more likely to result in broken, retained screws in general …

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Reservoir Characterization And Seismic Expression Of The Clinton Interval Over Dominion's Gabor Gas Storage Field In North-East Ohio, Scott Michael Bey Jan 2012

Reservoir Characterization And Seismic Expression Of The Clinton Interval Over Dominion's Gabor Gas Storage Field In North-East Ohio, Scott Michael Bey

Browse all Theses and Dissertations

In northeastern Ohio, an interval of interbedded sandstone and shale between the Queenston Shale and the Dayton Formation (both in the Silurian System) has long been referred to as the "Clinton interval". The Clinton interval has produced oil and gas for over a century, but has been converted locally to gas storage. Within the Clinton interval, reservoirs are commonly compartmentalized, in part because the sandstones are discontinuous but also because fractures enhance permeability in portions of otherwise continuous sandstones. The goal of this study is to characterize the Clinton interval within the Gabor gas storage field of Dominion East Ohio …

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Application Of The Human-Machine Interaction Model To Multiple Attribute Task Battery (Matb): Task Component Interaction And The Strategy Paradigm, Craig M. Walters Jan 2012

Application Of The Human-Machine Interaction Model To Multiple Attribute Task Battery (Matb): Task Component Interaction And The Strategy Paradigm, Craig M. Walters

Browse all Theses and Dissertations

The Multiple-Attribute Task Battery (MATB) is composed of four simultaneously running components to which a human operator responds. A prior report has quantified information content as a machine input baud rate using the Hick-Hyman and Fitt's Laws for three of the four components and defines a strategy function. This report covers methods to quantify information content of the fourth component, creating a single metric which describes overall task complexity and evaluates human performance and strategy. Six MATB task-scenarios (combinations of two, three, or all four MATB components) each at two input baud rates are evaluated. Subjects were also provided with …

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Experimental And Numerical Analysis Of Nano-Enhanced Polymer Coated Steel Plates Subjected To Ballistic Loading, Miles Coleman Fowler Jan 2012

Experimental And Numerical Analysis Of Nano-Enhanced Polymer Coated Steel Plates Subjected To Ballistic Loading, Miles Coleman Fowler

Electronic Theses and Dissertations

The following is a summary of research for a portion of the project titled Nano-Enhanced and Bio-Inspired Composite Materials for Mitigation and Protection of TIH Railcars and Stationary Tanks Against High Power Impact. This research investigated several nano-enhanced polymers for their suitability in high-speed impact protection applications. The polymers were tested mechanically to find ideal nano-particle additive percentages then coated onto steel substrates. These coated substrates were impacted using 0.50-caliber projectiles in order to find the ballistic limit (V50) for each combination. Computer modeling in ANSYS AUTODYN was undertaken to calculate a numerical ballistic limit for each plate configuration. The …

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Temporal And Spatial Assessment Of Pahs In Water, Sediment, And Oysters As A Result Of The Deepwater Horizon Oil Spill, Meghan Christina Dailey Jan 2012

Temporal And Spatial Assessment Of Pahs In Water, Sediment, And Oysters As A Result Of The Deepwater Horizon Oil Spill, Meghan Christina Dailey

Electronic Theses and Dissertations

On April 20, 2010, BP's Deepwater Horizon oil rig exploded leaking over 200 million gallons of crude oil into the Gulf of Mexico for 84 days. Exposure to oil-associated polycyclic aromatic hydrocarbons (PAHs) in the water and sediment could severely impact the aquatic organisms inhabiting the Gulf of Mexico (i.e. developmental defects, reproductive effects, death, etc.). Therefore, water, sediment and oyster, Crassostrea virginica, samples were collected approximately bimonthly between May 26 and November 30, 2010 from multiple sites along the Gulf Coast, namely, two sites in Mobile Bay (Denton and Sand Reefs at 1 or 0.1 m above the bay …

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The Effects Of Response To Intervention On Third Graders' Reading Achievement, Marlon Demetrius King Jan 2012

The Effects Of Response To Intervention On Third Graders' Reading Achievement, Marlon Demetrius King

Electronic Theses and Dissertations

The purpose of this quantitative study was to examine the effects of the Response to Intervention Three Tier Model on third graders' reading achievement. Two hundred forty-three students participated in this study. Students were from an elementary school in the southeastern region of the United States. The data on the students was collected through V-Port database, a database supported by Cambium Learning Group. Of the three groups engaged in Response to Intervention, data analysis revealed that there was a significant difference between group one, benchmark students and group two, emerging students who received intervention, while no significant difference existed when …

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Donor-Sigma-Acceptor (D-Sigma-A) Molecules With Perylenebisimide Acceptors Having Alkyl Or Peg Swallowtails With Sulfur Or Hydroxyl Anchors: Synthesis And Applications In Langmuir-Blodgett Films, Single Molecule Spectroscopy (Sms), G-Quadruplex Studies And Passivation Of Gold Nanoparticles, Rajesh Kota Jan 2012

Donor-Sigma-Acceptor (D-Sigma-A) Molecules With Perylenebisimide Acceptors Having Alkyl Or Peg Swallowtails With Sulfur Or Hydroxyl Anchors: Synthesis And Applications In Langmuir-Blodgett Films, Single Molecule Spectroscopy (Sms), G-Quadruplex Studies And Passivation Of Gold Nanoparticles, Rajesh Kota

Electronic Theses and Dissertations

Use of single molecules as electronic devices is presently considered a potential alternative to semiconductor-based nanoscale electronics. The ability to study a single molecule or a small group of molecules provides a great opportunity to build electronic devices at the molecular level. It is vital to understand the parameters that control the device properties such as molecular structure, conformation and arrangement at the surface. Ari Aviram and Mark A. Ratner proposed the construction of a single organic molecule as an organic rectifier. Donor-Sigma-Acceptor (D-?-A ) molecules, when arranged with a proper orientation as Langmuir-Blodgett (LB) films and fixed between two …

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The Role Of Emotional Expression On Person Identity Recognition, Kristen Paris Jan 2012

The Role Of Emotional Expression On Person Identity Recognition, Kristen Paris

Electronic Theses and Dissertations

Facial information concerning person identity and emotional expression is vital to human social interaction, and therefore, we find it beneficial to remember the faces we see. Little is known, however, about whether emotional expressions facilitate or inhibit recognition for person identity. The present studies examined the role of emotional expression on person identity recognition by manipulating whether such information was presented at encoding (i.e., initial perception of the actor) or at recognition (i.e., later memory for the actor). In Experiment 1, participants recognized more actors displaying an angry rather than a happy expression, when they initially saw actors display a …

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Impact Of Design Parameters On Detached-Die Tapered Resin Injection Pultrusion, Sudip Ranjit Jan 2012

Impact Of Design Parameters On Detached-Die Tapered Resin Injection Pultrusion, Sudip Ranjit

Electronic Theses and Dissertations

Injection pultrusion is an efficient process for manufacturing composites of continuous lengths with constant cross-section area. The main objective of this study is to compare the performances of the detached-die with the attached-die resin injection chamber configurations. In this work the impact of various geometric design parameters (the length of the injection chamber, slot width, multiple injection slot locations, and part thickness) on the performances and complete wetout of the composite parts for both the attached-die and detached-die configurations is investigated with various chamber lengths and compression ratios. A 3-D finite volume technique is employed to simulate the liquid resin …

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Impact Of Leadership Effectiveness And Organizational Climate On Academic Achievement In Memphis City Schools' Alternative High Schools, Billy J. Walker Jan 2012

Impact Of Leadership Effectiveness And Organizational Climate On Academic Achievement In Memphis City Schools' Alternative High Schools, Billy J. Walker

Electronic Theses and Dissertations

The primary purpose of this study was to conduct an investigation to determine the relationships between leadership effectiveness, organizational climate, and academic achievement in Memphis City Schools' alternative high schools. In this quantitative study, the Leadership Practices Inventory (LPI) was used to gather leadership effectiveness perceptions, and the Gallup Q12 was used to gather organizational climate surveys from the four regional alternative high schools in Memphis City Schools. The survey instruments were distributed to over 120 principals, teachers, and educational support staff with 103 (85.83%) responding. Analysis of variance (ANOVA), two-way analysis of variance (Two-Way ANOVA), and a Pearson's correlation …

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Admicellar Polymerization Of Calcium Carbonate And Its Performance In Drilling Fluids, Poh Lee Cheah Jan 2012

Admicellar Polymerization Of Calcium Carbonate And Its Performance In Drilling Fluids, Poh Lee Cheah

Electronic Theses and Dissertations

Admicellar polymerization using sodium dodecylsulfate (SDS) template to form ultrafilm polystyrene on commercial calcium carbonate (CaCO3 ) of various particle sizes was studied. Adsorption isotherms of SDS decrease after the critical micelle concentration (CMC) of SDS was observed. This is explained by the phase behavior of SDS with calcium ion. The solubility product constants (Ksp) for calcium dodecylsulfate (Ca(DS) 2) were calculated as 1.55x10?9M3 at 30°C and 8.58x10?9M3 at 50°C. At SDS concentrations above the CMC, precipitation of Ca(DS)2 was governed by the critical ratio of calcium ion concentration bound onto anionic micelles which was 0.22 at 30°C and 0.20 …

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Only Nixon Could Go To China: L. Q. C. Lamar And The Politics Of Reconciliation, Richard Brian Wilson Jan 2012

Only Nixon Could Go To China: L. Q. C. Lamar And The Politics Of Reconciliation, Richard Brian Wilson

Electronic Theses and Dissertations

Lucius Quintus Cinncinatus Lamar was a statesman with an almost unmatched career, serving on the President's Cabinet, in Congress, and on the Supreme Court. Lamar's work in government spanned one of the most tumultuous times in American history, and his transformation from secessionist to advocate for reconciliation in the post-Civil War period illustrates the complexity of politics at that time. This thesis examines Lamar's life and provides an historiographic survey of Lamar scholarship to date. From this review, the thesis moves to new and necessary areas of inquiry, including Lamar's relationship with black Reconstruction politicians, his role in the early …

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Agricultural Land And Energy Use Implications Of Changes In Energy Prices, Stephen Michael Randall Jan 2012

Agricultural Land And Energy Use Implications Of Changes In Energy Prices, Stephen Michael Randall

Dissertations

Field level farm management decisions such as crop rotation, tillage, and nitrogen application are impacted by the energy and other input costs, by the land quality, and by the anticipated grain prices. These decisions can significantly impact the acres planted, the yield, and the crop production, as well as both the fertilizer and energy use. This study develops an Excel based profit-maximizing optimization model for these farm management decisions, all varying by the field level Corn Suitability Rating land quality indicator for the agricultural land in the State of Iowa. The model developed for this analysis incorporates production costs, production …

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Genetic And Evolutionary Biometrics:Multiobjective, Multimodal, Feature Selection/Weighting For Tightly Coupled Periocular And Face Recognition, Aniesha Alford Jan 2012

Genetic And Evolutionary Biometrics:Multiobjective, Multimodal, Feature Selection/Weighting For Tightly Coupled Periocular And Face Recognition, Aniesha Alford

Dissertations

The Genetic & Evolutionary Computation (GEC) research community has seen the emergence of a new subarea, referred to as Genetic & Evolutionary Biometrics (GEB), as GECs have been applied to solve a variety of biometric problems. In this dissertation, we present three new GEB techniques for multibiometric recognition: Genetic & Evolutionary Feature Selection (GEFeS), Weighting (GEFeW), and Weighting/Selection (GEFeWS). Instead of selecting the most salient individual features, these techniques evolve subsets of the most salient combinations of features and/or weight features based on their discriminative ability in an effort to increase accuracy while decreasing the overall number of features needed …

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Cognitive Profiles And The Impact Of Medication On Children With Attention Deficit Hyperactivity Disorder, Lucy J. Wimpenny Jan 2012

Cognitive Profiles And The Impact Of Medication On Children With Attention Deficit Hyperactivity Disorder, Lucy J. Wimpenny

PCOM Psychology Dissertations

Attention Deficit Hyperactivity Disorder (ADHD) is one of the most frequently diagnosed disorders in children and adolescents. Individuals with ADHD often display behavioral symptoms, including inattention and/or impulsivity, which can also lead to struggles in the school setting. Current research has suggested that deficits in processing speed and working memory are common in individuals diagnosed with ADHD and are often seen on measures of cognitive ability. Positive outcomes have been associated with the use of psychostimulant medication to treat the symptoms of ADHD, although little research has supported this form of treatment to improve cognitive functioning in individuals diagnosed with …

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Examining Gender And Socio-Economic Status On The Emotional Intelligence Of Early Adolescents, Alicea J. Davis Jan 2012

Examining Gender And Socio-Economic Status On The Emotional Intelligence Of Early Adolescents, Alicea J. Davis

PCOM Psychology Dissertations

The purpose of this study was to examine emotional intelligence and its impact on the maturational process of male and female early-adolescent youth. Demographic variables, such gender, socio-economic status, ethnicity, and educational status were, valued against emotionality factors such as intrapersonal stress, interpersonal stress, adaptability, general mood, and overall emotional intelligence (EQ). The study utilized a non-experimental, correlational design examining archival data. The participants consisted of approximately, early adolescent fifth-grade students aged 10-13 years. The participants were administered the Bar-On Emotional Quotient Inventory (BarOn EQ-I:YV) and a demographic questionnaire. Descriptive statistics were used to describe the population sample. A Pearson …

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Executive Functions In The Schools: What Do Teachers Know About Executive Functions And How They Impact Student Progress?, Larissa Morgan-Borkowsky Jan 2012

Executive Functions In The Schools: What Do Teachers Know About Executive Functions And How They Impact Student Progress?, Larissa Morgan-Borkowsky

PCOM Psychology Dissertations

The current study surveyed middle school teachers on their knowledge, attitudes, beliefs, and expectations regarding executive functions in relation to students’ academic success. The results of this study indicated that teachers perceived themselves as knowledgeable of executive functions. A disconnect was found between teacher responses to an open-ended question regarding abilities and skills required for academic success and their endorsements of specific questions regarding executive functions. Motivation, problem-solving, and basic academic skills were indicated as being most important for success, but two of these are considered capacities students possess intrinsically. When asked about specific executive functions however, they rated them …

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The Polarizing Impact Of Science Literacy And Numeracy On Perceived Climate Change Risks, Donald Braman, Dan M. Kahan, Ellen Peters, Maggie Wittlin, Paul Slovic, Lisa Larrimore Ouellette, Gregory N. Mandel Jan 2012

The Polarizing Impact Of Science Literacy And Numeracy On Perceived Climate Change Risks, Donald Braman, Dan M. Kahan, Ellen Peters, Maggie Wittlin, Paul Slovic, Lisa Larrimore Ouellette, Gregory N. Mandel

GW Law Faculty Publications & Other Works

Seeming public apathy over climate change is often attributed to a deficit in comprehension. The public knows too little science, it is claimed, to understand the evidence or avoid being misled. Widespread limits on technical reasoning aggravate the problem by forcing citizens to use unreliable cognitive heuristics to assess risk. An empirical study found no support for this position. Members of the public with the highest degrees of science literacy and technical reasoning capacity were not the most concerned about climate change. Rather, they were the ones among whom cultural polarization was greatest. This result suggests that public divisions over …

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