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Influence Of Powder Activated Carbon (Pac) In Fly Ash On The Properties Of Concrete, Zahid Hossain, Sumon Roy Oct 2020

Influence Of Powder Activated Carbon (Pac) In Fly Ash On The Properties Of Concrete, Zahid Hossain, Sumon Roy

Data

Class C Fly Ash (CFA) is commonly used as supplementary cementitious material (SCM) in producing concrete by ready-mix concrete contractors in Arkansas. However, CFA can be used as a partial replacement of Ordinary Portland Cement (OPC) if it meets certain ASTM requirements. It is believed that the presence of powder activated carbon (PAC) in CFA increases the demand of the air-entraining agent (AEA) to achieve specified air content, and this is a concern to transportation agencies such as the Arkansas Department of Transportation (ARDOT) and concrete producers in recent years. Thus, the main goal of this research is to assess …

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Influence Of Powder Activated Carbon (Pac) In Fly Ash On The Properties Of Concrete, Zahid Hossain, Sumon Roy Oct 2020

Influence Of Powder Activated Carbon (Pac) In Fly Ash On The Properties Of Concrete, Zahid Hossain, Sumon Roy

Publications

Class C Fly Ash (CFA) is commonly used as supplementary cementitious material (SCM) in producing concrete by ready-mix concrete contractors in Arkansas. However, CFA can be used as a partial replacement of Ordinary Portland Cement (OPC) if it meets certain ASTM requirements. It is believed that the presence of powder activated carbon (PAC) in CFA increases the demand of the air-entraining agent (AEA) to achieve specified air content, and this is a concern to transportation agencies such as the Arkansas Department of Transportation (ARDOT) and concrete producers in recent years. Thus, the main goal of this research is to assess …

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Holistic Network-Level Assessment Of Pavement Flood Damages, Yong-Cheol Lee, Kunhee Choi Ph.D, Moeid Shariatfar Oct 2020

Holistic Network-Level Assessment Of Pavement Flood Damages, Yong-Cheol Lee, Kunhee Choi Ph.D, Moeid Shariatfar

Publications

After recent catastrophic flood disasters in Louisiana in 2016 and Texas in 2017, roadways in Region 6 areas suffer not only from the flood-inundation, but also from the long-term recovery processes that incur enormous maintenance costs. To assess the impacts of flooding disasters on roadways, various studies have investigated sampled roadway damages with pavement engineering techniques such as a direct damage analysis using cores/bores. However, current methods are time-consuming and labor-intensive. In addition, even though existing methods provide a detailed damage analysis of pavement in a particular location for a particular time period, there is still a large practical knowledge …

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Investigating The Impacts Of Truck Platooning On Transportation Infrastructure In The South-Central Region, Hany Hassan Ph.D, Samer Dessouky, Alireza Talebpour, Md Adilur Rahim Oct 2020

Investigating The Impacts Of Truck Platooning On Transportation Infrastructure In The South-Central Region, Hany Hassan Ph.D, Samer Dessouky, Alireza Talebpour, Md Adilur Rahim

Data

Truck platooning is an essential application of connected and autonomous vehicles, where several trucks are connected to each other forming a platoon. It is envisioned that truck platooning can assist in minimizing transportation challenges related to freight movements in the US by improving traffic operation, safety and reducing fuel consumption and emission. One of the most valuable truck corridors in the US is in the South-central region. This study investigates the impacts of truck platooning on US highways in that region using both corridor and network-level simulation analysis. Also, the impact of truck platooning on the pavement was quantified using …

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Advanced Modeling And Design Methodology For Pavements Using Plasticity-Based Shakedown Theory, Shengli Chen, Chao Sun, Xu Wang, Zhiming Zhang Oct 2020

Advanced Modeling And Design Methodology For Pavements Using Plasticity-Based Shakedown Theory, Shengli Chen, Chao Sun, Xu Wang, Zhiming Zhang

Data

Pavement design is a process intended to find the most economical combination of layer thickness and material type for the pavement, taking into account the properties of the subgrade soil and the traffic to be carried during the service life of the road. The currently prevalent methods of pavement analysis and design, however, are more or less empirical in U.S., which possess the shortcoming that the important type of pavement distress of rutting related to the accumulation of plastic or permanent deformations cannot be effectively considered. This project proposes an exploratory study on the application of the plasticity theory-based shakedown …

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Eco-Friendly Stabilization Of Sulfate-Rich Expansive Soils Using Geopolymers For Transportation Infrastructure, Xinbao Yu, Anand Puppala, Miladin Radovic, Sayantan Chakraborty, Jungyeon Jang, Oscar Huang Oct 2020

Eco-Friendly Stabilization Of Sulfate-Rich Expansive Soils Using Geopolymers For Transportation Infrastructure, Xinbao Yu, Anand Puppala, Miladin Radovic, Sayantan Chakraborty, Jungyeon Jang, Oscar Huang

Data

Traditional calcium-based stabilizers, such as lime, to stabilize sulfate-rich expansive soils, are lasting-challenges in geotechnical engineering. The biggest problem with using calcium-based stabilizers is that when calcium and water are exposed to sulfate-rich expansive soils, they form ettringite as an expansive mineral, which causes sulfate-induced heaving. The study aimed to investigate the feasibility of stabilizing sulfate-rich expansive soils using geopolymers for transportation infrastructure. Literature review on sulfate-induced heaving and sulfate-rich soils stabilized with geopolymers suggests a direction for how to stabilize sulfate soils using geopolymers. The engineering tests were conducted to determine the swell, shrinkage, and strength behavior of natural, …

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Holistic Network-Level Assessment Of Pavement Flood Damages, Yong-Cheol Lee, Kunhee Choi Ph.D, Moeid Shariatfar Oct 2020

Holistic Network-Level Assessment Of Pavement Flood Damages, Yong-Cheol Lee, Kunhee Choi Ph.D, Moeid Shariatfar

Data

After recent catastrophic flood disasters in Louisiana in 2016 and Texas in 2017, roadways in Region 6 areas suffer not only from the flood-inundation, but also from the long-term recovery processes that incur enormous maintenance costs. To assess the impacts of flooding disasters on roadways, various studies have investigated sampled roadway damages with pavement engineering techniques such as a direct damage analysis using cores/bores. However, current methods are time-consuming and labor-intensive. In addition, even though existing methods provide a detailed damage analysis of pavement in a particular location for a particular time period, there is still a large practical knowledge …

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Investigating The Impacts Of Truck Platooning On Transportation Infrastructure In The South-Central Region, Hany Hassan Ph.D, Samer Dessouky, Alireza Talebpour, Md Adilur Rahim Oct 2020

Investigating The Impacts Of Truck Platooning On Transportation Infrastructure In The South-Central Region, Hany Hassan Ph.D, Samer Dessouky, Alireza Talebpour, Md Adilur Rahim

Publications

Truck platooning is an essential application of connected and autonomous vehicles, where several trucks are connected to each other forming a platoon. It is envisioned that truck platooning can assist in minimizing transportation challenges related to freight movements in the US by improving traffic operation, safety and reducing fuel consumption and emission. One of the most valuable truck corridors in the US is in the South-central region. This study investigates the impacts of truck platooning on US highways in that region using both corridor and network-level simulation analysis. Also, the impact of truck platooning on the pavement was quantified using …

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A General Superapproximation Result, Susanne C. Brenner Oct 2020

A General Superapproximation Result, Susanne C. Brenner

Faculty Publications

A general superapproximation result is derived in this paper which is useful for the local/interior error analysis of finite element methods.

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F20rs 1st Legislative Week Minutes, Senate Secretary Oct 2020

F20rs 1st Legislative Week Minutes, Senate Secretary

Student Senate Meeting Minutes

No abstract provided.

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F20rs 3rd Legislative Week Minutes, Senate Secretary Oct 2020

F20rs 3rd Legislative Week Minutes, Senate Secretary

Student Senate Meeting Minutes

No abstract provided.

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F20rs 2nd Legislative Week Minutes, Senate Secretary Oct 2020

F20rs 2nd Legislative Week Minutes, Senate Secretary

Student Senate Meeting Minutes

No abstract provided.

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Γ-Unstable Bohr Hamiltonian With Sextic Potential For Odd-A Nuclei, Hadi Sobhani, Hassan Hassanabadi, Dennis Bonatsos, Feng Pan, Jerry P. Draayer Oct 2020

Γ-Unstable Bohr Hamiltonian With Sextic Potential For Odd-A Nuclei, Hadi Sobhani, Hassan Hassanabadi, Dennis Bonatsos, Feng Pan, Jerry P. Draayer

Faculty Publications

In this paper, odd-A nuclei in the vibrational to γ-soft transitional region are studied in the collective model, in which the odd-A system is described by the Bohr Hamiltonian with the quasi exactly solvable sextic β-part potential for the even-even core coupled with a single nucleon in a j=3/2 orbit via the β-independent five-dimensional spin-orbit interaction and the total angular momentum degeneracy breaking term. To test the validity of the coupling scheme, we use the model to reproduce experimentally available level energies and B(E2) values of 187,189,191,193,195Ir. It is clearly shown from both the level energies and the known B(E2) …

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Emergent Symplectic Symmetry In Atomic Nuclei: Ab Initio Symmetry-Adapted No-Core Shell Model, Kristina D. Launey, Tomáš Dytrych, Grigor H. Sargsyan, Robert B. Baker, Jerry P. Draayer Oct 2020

Emergent Symplectic Symmetry In Atomic Nuclei: Ab Initio Symmetry-Adapted No-Core Shell Model, Kristina D. Launey, Tomáš Dytrych, Grigor H. Sargsyan, Robert B. Baker, Jerry P. Draayer

Faculty Publications

Exact symmetry and symmetry-breaking phenomena play a key role in gaining a better understanding of the physics of many-particle systems, from quarks and atomic nuclei, through molecules and galaxies. In nuclei, exact and dominant symmetries such as rotational invariance, parity, and charge independence have been clearly established. Beyond such symmetries, the nature of nuclear dynamics appears to exhibit a high degree of complexity, and only now, we show the fundamental role of an emergent approximate symmetry in nuclei, the symplectic Sp(3,ℝ) symmetry, as clearly unveiled from ab initio studies that start from realistic interactions. In this article, we detail and …

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Assessment Of Surface Hydrological Connectivity In An Ungauged Multi-Lake System With A Combined Approach Using Geostatistics And Spaceborne Sar Observations, Yueqing Chen, Lili Wu, Guangxin Zhang, Y. Jun Xu, Zhiqiang Tan, Sijia Qiao Oct 2020

Assessment Of Surface Hydrological Connectivity In An Ungauged Multi-Lake System With A Combined Approach Using Geostatistics And Spaceborne Sar Observations, Yueqing Chen, Lili Wu, Guangxin Zhang, Y. Jun Xu, Zhiqiang Tan, Sijia Qiao

Faculty Publications

Connectivity metrics for surface water are important for predicting floods and droughts, and improving water management for human use and ecological integrity at the landscape scale. The integrated use of synthetic aperture radar (SAR) observations and geostatistics approach can be useful for developing and quantifying these metrics and their changes, including geostatistical connectivity function (GCF), maximum distance of connection (MDC), surface water extent (SWE), and connection frequency. In this study, we conducted a geostatistical analysis based on 52 wet and dry binary state (i.e., water and non-water) rasters derived from Sentinel-1 A/B GRD products acquired from 2015 to 2019 for …

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Psychological Mechanisms Associated With Food Security Status And Bmi In Adults: A Mixed Methods Study, Candice A. Myers, Robbie A. Beyl, Corby K. Martin, Stephanie T. Broyles, Peter T. Katzmarzyk Oct 2020

Psychological Mechanisms Associated With Food Security Status And Bmi In Adults: A Mixed Methods Study, Candice A. Myers, Robbie A. Beyl, Corby K. Martin, Stephanie T. Broyles, Peter T. Katzmarzyk

Clinical Research Faculty Publications

Objective: This study examined psychological constructs (delay discounting, grit, future time perspective and subjective social status) in relation to food security status and body weight.Design: A simultaneous triangulation mixed methods design was used to collect quantitative and qualitative data. Quantitative data were collected in fifty-six adults. Independent variables included food security status (food secure or food insecure) and BMI category (normal weight or overweight/obese). Participants, matched on race (African American and White), were categorised into four food security status by BMI category groups. Psychological constructs were measured via validated questionnaires. Qualitative data were collected in a subsample of twelve participants …

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Fast Food Patronage And Obesity Prevalence During The Covid-19 Pandemic: An Alternative Explanation, Candice A. Myers, Stephanie T. Broyles Oct 2020

Fast Food Patronage And Obesity Prevalence During The Covid-19 Pandemic: An Alternative Explanation, Candice A. Myers, Stephanie T. Broyles

Population and Public Health Science Faculty Publications

No abstract provided.

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Sedentary Behaviour And Health In Adults: An Overview Of Systematic Reviews, Travis J. Saunders, Travis Mcisaac, Kevin Douillette, Nick Gaulton, Stephen Hunter, Ryan E. Rhodes, Stephanie A. Prince, Valerie Carson, Jean Philippe Chaput, Sebastien Chastin, Lora Giangregorio, Ian Janssen, Peter T. Katzmarzyk, Michelle E. Kho, Veronica J. Poitras, Kenneth E. Powell, Robert Ross, Amanda Ross-White, Mark S. Tremblay, Genevieve N. Healy Oct 2020

Sedentary Behaviour And Health In Adults: An Overview Of Systematic Reviews, Travis J. Saunders, Travis Mcisaac, Kevin Douillette, Nick Gaulton, Stephen Hunter, Ryan E. Rhodes, Stephanie A. Prince, Valerie Carson, Jean Philippe Chaput, Sebastien Chastin, Lora Giangregorio, Ian Janssen, Peter T. Katzmarzyk, Michelle E. Kho, Veronica J. Poitras, Kenneth E. Powell, Robert Ross, Amanda Ross-White, Mark S. Tremblay, Genevieve N. Healy

Population and Public Health Science Faculty Publications

The purpose of this overview of systematic reviews was to determine the relationship between different types and patterns of sedentary behaviour and selected health outcomes in adults and older adults. Five electronic databases were last searched in May, 2019, with a 10-year search limit. Included reviews met the a priori population (community-dwelling adults aged 18 years and older), intervention/exposure/comparator (various types and/or patterns of sedentary behaviour), and outcomes criteria. Eighteen systematic reviews were included in the evidence synthesis. High levels of sedentary behaviour are unfavourably associated with cognitive function, depression, function and disability, physical activity levels, and physical health-related quality …

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Breakfast Skipping And Overweight/Obesity In First Grade Primary School Children: A Nationwide Register-Based Study In Iceland, Anita Aanesen, Peter T. Katzmarzyk, Linda Ernstsen Oct 2020

Breakfast Skipping And Overweight/Obesity In First Grade Primary School Children: A Nationwide Register-Based Study In Iceland, Anita Aanesen, Peter T. Katzmarzyk, Linda Ernstsen

Population and Public Health Science Faculty Publications

Although several studies have revealed an association between skipping breakfast and overweight (OW) or obesity (OB) in older children and adolescents, less is known about that association in younger children. The purpose of our study was to assess the association between skipping breakfast and OW/OB in children in the first grade. The sample included 4360 children (51.5% boys) aged 5.6 to 7.4 years who participated in the annual health examination in Iceland during 2016 and 2017, completed by 91% of all first graders in Iceland. Binary logistic regression analysis with odds ratios (ORs) and 95% confidence intervals (CIs) was used …

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Canadian 24-Hour Movement Guidelines For Adults Aged 18-64 Years And Adults Aged 65 Years Or Older: An Integration Of Physical Activity, Sedentary Behaviour, And Sleep, Robert Ross, Jean Philippe Chaput, Lora M. Giangregorio, Ian Janssen, Travis J. Saunders, Michelle E. Kho, Veronica J. Poitras, Jennifer R. Tomasone, Rasha El-Kotob, Emily C. Mclaughlin, Mary Duggan, Julie Carrier, Valerie Carson, Sebastien F. Chastin, Amy E. Latimer-Cheung, Tala Chulak-Bozzer, Guy Faulkner, Stephanie M. Flood, Mary Kate Gazendam, Genevieve N. Healy, Peter T. Katzmarzyk, William Kennedy, Kirstin N. Lane, Amanda Lorbergs, Kaleigh Maclaren, Sharon Marr, Kenneth E. Powell, Ryan E. Rhodes, Amanda Ross-White, Frank Welsh, Juana Willumsen, Mark S. Tremblay Oct 2020

Canadian 24-Hour Movement Guidelines For Adults Aged 18-64 Years And Adults Aged 65 Years Or Older: An Integration Of Physical Activity, Sedentary Behaviour, And Sleep, Robert Ross, Jean Philippe Chaput, Lora M. Giangregorio, Ian Janssen, Travis J. Saunders, Michelle E. Kho, Veronica J. Poitras, Jennifer R. Tomasone, Rasha El-Kotob, Emily C. Mclaughlin, Mary Duggan, Julie Carrier, Valerie Carson, Sebastien F. Chastin, Amy E. Latimer-Cheung, Tala Chulak-Bozzer, Guy Faulkner, Stephanie M. Flood, Mary Kate Gazendam, Genevieve N. Healy, Peter T. Katzmarzyk, William Kennedy, Kirstin N. Lane, Amanda Lorbergs, Kaleigh Maclaren, Sharon Marr, Kenneth E. Powell, Ryan E. Rhodes, Amanda Ross-White, Frank Welsh, Juana Willumsen, Mark S. Tremblay

Population and Public Health Science Faculty Publications

The Canadian Society for Exercise Physiology assembled a Consensus Panel representing national organizations, content experts, methodologists, stakeholders, and end-users and followed an established guideline development procedure to create the Canadian 24-Hour Movement Guidelines for Adults aged 18-64 years and Adults aged 65 years or older: An Integration of Physical Activity, Sedentary Behaviour, and Sleep. These guidelines underscore the importance of movement behaviours across the whole 24-h day. The development process followed the strategy outlined in the Appraisal of Guidelines for Research and Evaluation (AGREE) II instrument. A large body of evidence was used to inform the guidelines including 2 de …

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Metabolic And Energetic Benefits Of Microrna-22 Inhibition, Marc Thibonnier, Christine Esau, Sujoy Ghosh, Edward Wargent, Claire Stocker Oct 2020

Metabolic And Energetic Benefits Of Microrna-22 Inhibition, Marc Thibonnier, Christine Esau, Sujoy Ghosh, Edward Wargent, Claire Stocker

Division of Basic Science Faculty Publications

INTRODUCTION: We previously demonstrated in primary cultures of human subcutaneous adipocytes and in a mouse model of diet-induced obesity that specific microRNA-22-3p antagomirs produce a significant reduction of fat mass and an improvement of several metabolic parameters. These effects are related to the activation of target genes such as KDM3A, KDM6B, PPARA, PPARGC1B and SIRT1 involved in lipid catabolism, thermogenesis, insulin sensitivity and glucose homeostasis. RESEARCH DESIGN AND METHODS: We now report a dedicated study exploring over the course of 3 months the metabolic and energetic effects of subcutaneous administration of our first miR-22-3p antagomir drug candidate (APT-110) in adult …

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Exercise Training Impacts Skeletal Muscle Clock Machinery In Prediabetes, Melissa L. Erickson, H. U.I. Zhang, Jacob T. Mey, John P. Kirwan Oct 2020

Exercise Training Impacts Skeletal Muscle Clock Machinery In Prediabetes, Melissa L. Erickson, H. U.I. Zhang, Jacob T. Mey, John P. Kirwan

Division of Basic Science Faculty Publications

Purpose Disruption of the skeletal muscle molecular clock leads to metabolic disease, whereas exercise may be restorative, leading to improvements in metabolic health. The purpose of this study was to evaluate the effects of a 12-wk exercise intervention on skeletal muscle molecular clock machinery in adults with obesity and prediabetes, and determine whether these changes were related to exercise-induced improvements in metabolic health. Methods Twenty-six adults (age, 66 ± 4.5 yr; body mass index (BMI), 34 ± 3.4 kg·m-2; fasting plasma glucose, 105 ± 15 mg·dL-1) participated in a 12-wk exercise intervention and were fully provided isoenergetic diets. Body composition …

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Evidence Summaries And Recommendations From The International Evidence-Based Guideline For The Assessment And Management Of Polycystic Ovary Syndrome: Lifestyle Management, Lisa J. Moran, Eliza C. Tassone, Jacqueline Boyle, Leah Brennan, Cheryce L. Harrison, Angelica Lindén Hirschberg, Siew Lim, Kate Marsh, Marie L. Misso, Leanne Redman, Mala Thondan, Chandrika Wijeyaratne, Rhonda Garad, Nigel K. Stepto, Helena J. Teede Oct 2020

Evidence Summaries And Recommendations From The International Evidence-Based Guideline For The Assessment And Management Of Polycystic Ovary Syndrome: Lifestyle Management, Lisa J. Moran, Eliza C. Tassone, Jacqueline Boyle, Leah Brennan, Cheryce L. Harrison, Angelica Lindén Hirschberg, Siew Lim, Kate Marsh, Marie L. Misso, Leanne Redman, Mala Thondan, Chandrika Wijeyaratne, Rhonda Garad, Nigel K. Stepto, Helena J. Teede

Clinical Research Faculty Publications

Lifestyle is fundamental in chronic disease prevention and management, and it has been recommended as a first-line treatment in the Australian polycystic ovary syndrome (PCOS) guideline 2011. The first international evidence-based guideline on PCOS was developed in 2018, which expanded the scope and evidence in the Australian guideline. This paper summarizes the lifestyle recommendations and evidence summaries from the guideline. International multidisciplinary guideline development groups delivered the International Evidence-based Guideline for the Assessment and Management of Polycystic Ovary Syndrome 2018. The process followed the Appraisal of Guidelines for Research and Evaluation II and The Grading of Recommendations, Assessment, Development and …

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Exploring New And Modified Rejection-Type Thresholds Using Cricket Snack Crackers, Ryan Ardoin, Ross Romero, Brian Marx, Witoon Prinyawiwatkul Oct 2020

Exploring New And Modified Rejection-Type Thresholds Using Cricket Snack Crackers, Ryan Ardoin, Ross Romero, Brian Marx, Witoon Prinyawiwatkul

Faculty Publications

Recently, sensory threshold concepts have been expanded to include affective perceptions of foods and beverages, especially measures of product rejection; however, each threshold interpretation depends largely on the methodology employed. By substituting cricket powder for whole-wheat flour in snack crackers (0%, 5%, 10%, 15%, and 20%), we proposed modifications to two existing threshold methodologies: a modified consumer rejection threshold (M-CRT) using a 2-alternative choice (2-AC) preference test with “no preference” option; and a modified hedonic rejection threshold (M-HRT) based on less-than-neutral hedonic scores according to a one-sample t-test. We also proposed two new concepts: a rejection tolerance threshold (RTT) and …

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Low-Income Energy Affordability In An Era Of U.S. Energy Abundance, Marilyn A. Brown, Anmol Soni, Melissa V. Lapsa, Katie Southworth, Matt Cox Oct 2020

Low-Income Energy Affordability In An Era Of U.S. Energy Abundance, Marilyn A. Brown, Anmol Soni, Melissa V. Lapsa, Katie Southworth, Matt Cox

Faculty Publications

In an era of U.S. energy abundance, the persistently high energy bills paid by low-income households is troubling. After decades of weatherization and bill-payment programs, low-income households still spend a higher percent of their income on electricity and gas bills than any other income group. Their energy burden is not declining, and it remains persistently high in particular geographies such as the South, rural America, and minority communities. As public agencies and utilities attempt to transition to a sustainable energy future, many of the programs that promote energy efficiency, rooftop solar, electric vehicles, and home batteries are largely inaccessible to …

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Intervention To Improve Preschool Children’S Fundamental Motor Skills: Protocol For A Parent-Focused, Mobile App–Based Comparative Effectiveness Trial, E. Kipling Webster, Chelsea L. Kracht, Robert L. Newton, Robbie A. Beyl, Amanda E. Staiano Oct 2020

Intervention To Improve Preschool Children’S Fundamental Motor Skills: Protocol For A Parent-Focused, Mobile App–Based Comparative Effectiveness Trial, E. Kipling Webster, Chelsea L. Kracht, Robert L. Newton, Robbie A. Beyl, Amanda E. Staiano

Population and Public Health Science Faculty Publications

Background: Preschool age is an important time to master fundamental motor skills (FMS) through structured physical activity, yet many young children lag behind in motor skill development. Objective: The Promoting Lifelong Activity in Youth (PLAY) study is a pilot comparative effectiveness trial to test the acceptability, feasibility, and preliminary effectiveness of a mobile app delivered to parents to promote FMS development in their preschool children (aged 3-5 years). Methods: We conducted a 2-arm, parallel-design, randomized comparative effectiveness trial in 72 parent-child dyads from the southeastern United States. Experts in motor development and developmental psychology developed an app designed to deliver …

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International Reverse Transfer Students: A Critical Analysis Based On Field, Habitus, And Social And Cultural Capital, Yu “April” Chen, Ran Li, Linda Serra Hagedorn Oct 2020

International Reverse Transfer Students: A Critical Analysis Based On Field, Habitus, And Social And Cultural Capital, Yu “April” Chen, Ran Li, Linda Serra Hagedorn

Faculty Publications

Objective: International reverse transfer students are international students who begin their postsecondary journey at a four-year institution but subsequently transfer to a community college. In this qualitative study, we examine the lived experiences of international reverse transfers to understand the reasons for reverse-transfer and to understand the students’ learning experiences. Methods: Using a phenomenological approach, we recruited 10 international reverse transfer students attending one four-year university or one of the two community colleges. We conducted individual interviews with all participants and analyzed transcript data through Bourdieu’s sociological theory of field, habitus, and social and cultural capital. Results: We identified three …

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Gis Tool To Predict Photosynthetically Active Radiation In A Dry Valley, Dimitri Acosta, Peter T. Doran, Madeline Myers Oct 2020

Gis Tool To Predict Photosynthetically Active Radiation In A Dry Valley, Dimitri Acosta, Peter T. Doran, Madeline Myers

Faculty Publications

© Antarctic Science Ltd 2020 Understanding primary productivity is a core research area of the National Science Foundation's Long-Term Ecological Research Network. This study presents the development of the GIS-based Topographic Solar Photosynthetically Active Radiation (T-sPAR) toolbox for Taylor Valley. It maps surface photosynthetically active radiation using four meteorological stations with ∼20 years of data. T-sPAR estimates were validated with ground-truth data collected at Taylor Valley's major lakes during the 2014-15 and 2015-16 field seasons. The average daily error ranges from 0.13 mol photons m-2 day-1 (0.6%) at Lake Fryxell to 3.8 mol photons m-2 day-1 (5.8%) at Lake Hoare. …

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Climate Controls On Erosion In Tectonically Active Landscapes, B. A. Adams, K. X. Whipple, A. M. Forte, A. M. Heimsath, K. V. Hodges Oct 2020

Climate Controls On Erosion In Tectonically Active Landscapes, B. A. Adams, K. X. Whipple, A. M. Forte, A. M. Heimsath, K. V. Hodges

Faculty Publications

Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). The ongoing debate about the nature of coupling between climate and tectonics in mountain ranges derives, in part, from an imperfect understanding of how topography, climate, erosion, and rock uplift are interrelated. Here, we demonstrate that erosion rate is nonlinearly related to fluvial relief with a proportionality set by mean annual rainfall. These relationships can be quantified for tectonically active landscapes, and calculations based on them …

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Correction To: Simulated Temperature Programmed Desorption Of Acetaldehyde On Ceo2(111): Evidence For The Role Of Oxygen Vacancy And Hydrogen Transfer (Topics In Catalysis, (2017), 60, 6-7, (446-458), 10.1007/S11244-016-0703-Y), Chuanlin Zhao, Ye Xu Oct 2020

Correction To: Simulated Temperature Programmed Desorption Of Acetaldehyde On Ceo2(111): Evidence For The Role Of Oxygen Vacancy And Hydrogen Transfer (Topics In Catalysis, (2017), 60, 6-7, (446-458), 10.1007/S11244-016-0703-Y), Chuanlin Zhao, Ye Xu

Faculty Publications

The original version of this article unfortunately contained an error in Fig. 6. The authors would like to correct the error with this erratum. The errors were due to the missing of a factor of 2 in the rate expression for the surface coverage of atomic H when it desorbs as H2, and to incorrect settings for some of the initial coverages, in the microkinetic model. A corrected version is shown here as Fig. 6, with the same caption as before.

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