Digital Commons Network^™

New Country Records, Annotated Checklist And Key To The Dacine Fruit Flies (Diptera: Tephritidae: Dacinae: Dacini) Of Bangladesh, Luc Leblanc, M. Aftab Hossain, Mahfuza Momen, Kajla Seheli

Insecta Mundi

Thirty-four species of dacine fruit flies (Diptera: Tephritidae) were recorded in Bangladesh, based on field surveys carried out between 2013 and 2020. Five species are reported in Bangladesh for the first time: Bactrocera aethriobasis (Hardy), B. limbifera (Bezzi), B. melania (Hardy and Adachi), B. nigrifemorata Li and Wang, and Dacus jacobi David and Sachin. The attraction of B. nigrifemorata to cue-lure is a new male lure association. An annotated checklist and illustrated key to the species are provided.

Systematic field surveys of dacine fruit flies in Bangladesh have been ongoing since 2013, initially focused on rural farmland and village environments …

Immunization Stress Related Response, Pornumpa Bunjoungmanee

Asian Medical Journal and Alternative Medicine

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Gardner-Webb Faculty Members Recognized With Awards, Office Of University Communications

Gardner-Webb NewsCenter Archive

Members of the Gardner-Webb University Faculty were recognized with awards recently at the 2021 Faculty Assembly. Hosted by the Faculty Development of Instruction and Improvement Committee (FDIIC), the program also introduced the first dean of the GWU College of Arts and Sciences, Dr. Shawn Holt, along with six new faculty for the 2021-2022 year.

September 2, 2021: Agenda, University Of North Dakota

University Senate Meeting Minutes

Agenda for the September 2, 2021, meeting of the University Senate. 21 pages

Large Eddy Simulations Of Turbulent And Buoyant Flows In Urban And Complex Terrain Areas Using The Aeolus Model, Akshay A. Gowardhan, Dana L. Mcgufffin, Donald L. Lucas, Stephanie J. Neuscamman, Otto Alvarez, Lee G. Glascoe

Student Publications

Fast and accurate predictions of the flow and transport of materials in urban and complex terrain areas are challenging because of the heterogeneity of buildings and land features of different shapes and sizes connected by canyons and channels, which results in complex patterns of turbulence that can enhance material concentrations in certain regions. To address this challenge, we have developed an efficient three-dimensional computational fluid dynamics (CFD) code called Aeolus that is based on first principles for predicting transport and dispersion of materials in complex terrain and urban areas. The model can be run in a very efficient Reynolds average …

Daily Eastern News: August 27, 2021, Eastern Illinois University

August

No abstract provided.

Mourning Earth; Ritual Expressions Of Ecological Grief, Katlyn Brumfield

Theses - ALL

This thesis considers the potential of grief and mourning to foster meaningful engagement with global ecological crises. I explore this potential through my own studio practice, positioning artworks and creative processes as vehicles for articulating collective experiences of loss, anxiety, and bereavement. To create these artworks, I draw from scientific knowledge, regional folkways, geologic history, and intergenerational experience with an emphasis on local culture. By forming sustained confrontations with the negative emotions of ecological destruction and loss, I advocate for the acceptance of grief as a reality of our time and as a possible means of imagining different ways of …

The Influence Of Trailing Edge Shape And Kinematics On Bio-Inspired Pitching Panels, Justin Thomas King

Dissertations - ALL

Recently, some engineers have turned to the study of swimming and flying animals to provide insight into the design of vehicles that move through air or water. For certain animals swimming in water, thrust is generated primarily by either a caudal fin or fluke located at the posterior end of the swimmer. It has been argued extensively in the existing research literature that biological propulsors of high aspect ration that also display forked, or lunate, planforms are representative of optimized propulsor geometries with respect to propulsive performance. However, recent experimental and computational work on purely pitching panels has demonstrated that …

Interplay Of Geometry And Mechanics: Disordered Spring Networks And Shape-Changing Cerebella, Mahesh Chandrasekhar Gandikota

Dissertations - ALL

This thesis reports work in three topics - I) isotropic strain-induced rigidity transitions in under-constrained spring networks II) uniaxial strain-induced stiffening transitions in semiflexible networks with area-conserving inclusions and III) non-linearities in the buckling without bending morphogenesis model for growing cerebella. All models are two dimensional and we employ either discrete and continuum models to study these systems.In I), motivated by the rigidity transitions in isotropically strained disordered spring networks, we study rigidity transitions in isotropically strained area-conserving random polygonal loops. We find a crossover transition in these loops. We also provide arguments towards showing convexity as a necessary condition …

The Impact Of The Classroom Climate In Introductory Science, Engineering, And Mathematics Courses On The Persistence Desires And Academic Outcomes Of White Women And Women Of Color In Engineering, Shannon Hitchcock Schantz

Dissertations - ALL

This dissertation utilized survey research to examine the classroom climate in introductory science, engineering, and mathematics courses and its impact on students' desire to remain in engineering, academic success, academic confidence, and enjoyment of their major. Data were collected from 161 engineering students that completed their second year of coursework at a private research university in the northeast. Using Astin's (1991) college impact theory and an intersectional feminist framework (Crenshaw, 1991), the study used hierarchical multiple regression analyses to examine how students' background characteristics and perceptions of supportive or chilly classroom experiences predicted the academic outcome variables. An increase in …

Evaluating The Controls Of Neogene Exhumation In The Tropical Northern Andes (Colombia), Nicolas Perez Consuegra

Dissertations - ALL

Understanding how tectonic and climatic forces influence erosion and shape mountains is important to understand the evolution of the landscapes through earth's history. This dissertation aims to determine how do tectonic processes and climate variability interact to shape Earth's tropical mountains. In chapter 1, I studied the Eastern Cordillera of the Northern Andes, a mountain range located in Colombia in the tropics of South America. To obtain exhumation rates, I used thermochronology, which is a method that records—over timescales of millions of years—the rate at which rocks located at great depths within the Earth cool as they are transported to …

Analysis Of Rock Varnish From The Mojave Desert By Handheld Laser-Induced Breakdown Spectroscopy, Russell S. Harmon, Daria Khashchevskaya, Michelle Morency, Lewis A. Owen, Morgan Jennings, Jeffrey R. Knott, Jason M. Dortch

Faculty, Staff, and Affiliated Publications--KGS

Laser-induced breakdown spectroscopy (LIBS) is a form of optical emission spectroscopy that can be used for the rapid analysis of geological materials in the field under ambient environmental conditions. We describe here the innovative use of handheld LIBS for the in situ analysis of rock varnish. This thinly laminated and compositionally complex veneer forms slowly over time on rock surfaces in dryland regions and is particularly abundant across the Mojave Desert climatic region of east-central California (USA). Following the depth profiling examination of a varnished clast from colluvial gravel in Death Valley in the laboratory, our in situ analysis of …

Triangle Journal News, Volume 13, Number 1

Triangle Journal News, 1990-2006

Editors: Allen Cook, John Stilwell, Angela Lamb. Columnists/Contributors: Paula Martinac,Bruce Allen, Romeo San Vicente, Shannon Yarbrough, Angela Lamb, Jim Maynard. Production: Allen Cook, Bob Dumais, John Stilwell. Advertising: Bob Dumais, Allen Cook. National Advertising: Rivendell Marketing Company.

Special thanks to Rhodes College and the Paul Barret Jr. Library for providing initial scanning of this collection.

Triangle Journal News, Volume 13, Number 3

Triangle Journal News, 1990-2006

Editors: Allen Cook, John Stilwell, Angela Lamb. Columnists/Contributors: Paula Martinac,Bruce Allen, Romeo San Vicente, Shannon Yarbrough, Angela Lamb, Jim Maynard. Production: Allen Cook, Bob Dumais, John Stilwell. Advertising: Bob Dumais, Allen Cook. National Advertising: Rivendell Marketing Company.

Special thanks to Rhodes College and the Paul Barret Jr. Library for providing initial scanning of this collection.

Implications Of Sensory Processing And Attentional Differences Associated With Autism In Academic Settings: An Integrative Review, Courtney Mallory, Brandon Keehn

Purdue University Libraries Open Access Publishing Fund

The impact of classroom environments on student engagement and academic performance is well-documented. Autism spectrum disorder (ASD) is associated with atypical sensory processing and attentional impairments, which may lead to challenges in successfully accessing educational material within these settings. These symptoms may help explain why students with ASD show discrepancies between intellectual ability and academic performance. Given the increasing number of students with ASD present in classrooms, understanding strengths and weaknesses in sensory processing and attention is necessary in order to design better classroom environments and develop more efficacious accommodations and interventions to support optimal student success. Therefore, the objectives …

The Relationship Between Diet Quality, Micronutrient Content And Sleep Indices In Children Ages 9-11, Nicholas Joseph Marino

Theses - ALL

Physiological factors such as metabolism, circadian rhythms, and hormone production play an important role in sleep quality. The physiology of sleep is significantly modified by externally mediated factors, such as socioeconomic status and the quality of nutrition. Sleep actigraphy records from a sub-sample of school-age participants in the Syracuse Lead Study (n=125) were used to evaluate the impact of diet on sleep quality and efficiency. Sleep duration, efficiency, latency, and fragmentation were extracted from actigraphy records over 5 consecutive weekdays. Healthy Eating Index 2015 (HEI-2015) scores and component sub-scores were calculated from two 24-hour recalls per participant collected through the …

Observations Of Post-Wildfire Landcover Trends In Boreal Alaska Using A Suite Of Remote Sensing Approaches, Eric John Deutsch

Theses - ALL

Wildfires are a common occurrence in the boreal ecosystems of the Pacific Northwest. Studies suggest that anthropogenic climate change has fostered more frequent and higher severity fires in recent decades in these forests, which may result in substantial changes in vegetation structure and ecosystem functioning. However, large-scale studies examining the linkages between changing boreal wildfire regimes and vegetation structure have historically been limited in spatial scope due to the broad area and inaccessibility of many boreal regions, including the Alaskan interior. The development and advancement of satellite remote sensing instruments and geospatial analysis techniques provide researchers with unmatched abilities to …

Preoperative Computed Tomography Of Intrahepatic Mass-Forming Cholangiocarcinomas: Morphologic Features And Enhancement Patterns Correlation With Clinicopathologic Factors And Clinical Outcomes, Wirana Angthong, Thararat Thana-Arak, Wichet Piyawong

Asian Medical Journal and Alternative Medicine

Purpose: To evaluate preoperative morphologic features and enhancement patterns of intrahepatic mass-forming cholangiocarcinomas (IMCC) on CT and to determine the relationship between CT features, clinicopathologic factors, and clinical outcomes.
Materials and methods: Twenty patients with pathologically confirmed IMCC were included. Two radiologists independently evaluated the CT features and then reached consensus decisions. Histopathologic data and clinical outcomes after surgical resection were collected. Statistically significant CT parameters were identified through univariate analyse.

Results: Patients with negative preoperative CEA had longer disease free rate (DFR) than those with positive CEA (13.8 vs. 3.5 months; P = 0.014). Patients with tumors < 5 cm) had longer DFR than patients with tumors > 5 cm …

Rgb Indices And Canopy Height Modelling For Mapping Tidal Marsh Biomass From A Small Unmanned Aerial System, Grayson R. Morgan, Cuizhen Wang, James T. Morris

Faculty Publications

Coastal tidal marshes are essential ecosystems for both economic and ecological reasons. They necessitate regular monitoring as the effects of climate change begin to be manifested in changes to marsh vegetation healthiness. Small unmanned aerial systems (sUAS) build upon previously established remote sensing techniques to monitor a variety of vegetation health metrics, including biomass, with improved flexibility and affordability of data acquisition. The goal of this study was to establish the use of RGB-based vegetation indices for mapping and monitoring tidal marsh vegetation (i.e., Spartina alterniflora) biomass. Flights over tidal marsh study sites were conducted using a multi-spectral camera on …

A 10-Year Post-Analysis Of The Maya Health Toolkit For Medical Providers, Lorenna Garcia-Bochas

Master of Science in Integrative Biology Theses

Researchers have often overlooked America's Indigenous community when conducting health disparities research. In Central and South America, The World Bank 2015 report identifies 774 indigenous groups living today (Davis-Castro, n.d.). One of the oldest known is the Maya people. The Maya have been through various cultural struggles, from the Spanish conquistadors of the past to current anti-indigenous discrimination, violence, and rhetoric. The historical conflict and prejudice have contributed to why many Maya migrate north to the United States for a better opportunity and a more peaceful life for their families. In doing so, they face many health risks to their …

Dependence On Humidity And Aerosol Composition Of The Gas-Particle Partitioning Of Weakly And Moderately Polar Vocs, Jeonghyeon Ahn, Guiying Rao, Eric P. Vejerano

Faculty Publications

Volatile organic compounds (VOCs) dominate the class of pollutants that accumulate in the atmosphere and indoors. Assessing the gas-particle partitioning of VOCs is important to determine their fate, transport, and adverse health impacts. This work is a companion to our earlier study on the temperature dependence of VOC partitioning. Here, we report our measurement of the gas-particle partition coefficient (Kp) for weakly polar (trichloroethylene, TCE) and moderately polar (n-butanol, n-BuOH) VOCs under varying relative humidity (RH) levels onto organic and inorganic aerosols. Kp of TCE was four to five orders of magnitude lower than those …

Trihalomethanes In Water Supply System And Water Distribution Networks, Sornsiri Sriboonnak, Phacharapol Induvesa, Suraphong Wattanachira, Pharkphum Rakruam, Adisak Siyasukh, Chayakorn Pumas, Aunnop Wongrueng, Eakalak Khan

Civil and Environmental Engineering and Construction Faculty Research

The formation of trihalomethanes (THMs) in natural and treated water from water supply systems is an urgent research area due to the carcinogenic risk they pose. Seasonal effects and pH have captured interest as potential factors affecting THM formation in the water supply and distribution systems. We investigated THM occurrence in the water supply chain, including raw and treated water from water treatment plants (coagulation, sedimentation, sand filtration, ClO2-disinfection processes, and distribution pipelines) in the Chiang Mai municipality, particularly the educational institute area. The effects of two seasons, rainy (September–November 2019) and dry (December 2019–February 2020), acted as surrogates for …

Proven Inhibitory Effect On Lipopolysaccharides- Induced Nitric Oxide Production Of Zanthoxylum Rhetsa Under Accelerated Condition And Stability Affecting Factors, Chureeporn Imphat, Pakakrong Thongdeeying, Arunporn Itharat, Sumalee Panthong, Sunita Makchuchit

Asian Medical Journal and Alternative Medicine

Introduction: Zanthoxylum rhetsa preparations were used in ethnomedicine for the treatments of muscle and tendon spasms. The essential oil from its fruit has been reported for its anti-inflammatory activity and previous study has shown that the hexane extract of Z.rhetsa pericarp showed highest in vitro anti-inflammatory effect. Nitric oxide (NO) is an inflammatory mediator associated with osteoarthritis. Therefore, in vitro production inhibition of NO in RAW264.7 macrophages was performed. The accelerated stability test and the forced degradation test were studied to estimate storage life and to ensure appropriate conditions for its activity.

Methods: The hexane extracts obtained from the pericarp …

Blood–Brain Barrier Breakdown And Astrocyte Reactivity Evident In The Absence Of Behavioral Changes After Repeated Traumatic Brain Injury, Celeste Dunn, Nasya Sturdivant, Sara Venier, Syed Ali, Jeffery Wolchok, Kartik Balachandran

Biomedical Engineering Faculty Publications and Presentations

Repeated traumatic brain injuries (TBIs) cause debilitating effects. Without understanding the acute effects of repeated TBIs, treatment options to halt further degeneration and damage cannot be developed. This study sought to examine the acute effects of blood–brain barrier (BBB) dysfunction, edema, inflammation and behavioral changes after either a single or double TBI using a C57BL/6 mouse model. We examined the effects of one or two TBIs, of either a mild or moderate severity. Double injuries were spaced 7 days apart, and all analysis was performed 24 h post-injury. To examine edema and inflammation, protein levels of glial fibrillary acidic protein …

Deciphering The Role Of Ion Channels In Early Defense Signaling Against Herbivorous Insects, Akanksha Gandhi, Rupesh R. Kariyat, Amaravadhi Harikishore, Marzieh Ayati, Anirban Bhunia, Nirakar Sahoo

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)

Plants and insect herbivores are in a relentless battle to outwit each other. Plants have evolved various strategies to detect herbivores and mount an effective defense system against them. These defenses include physical and structural barriers such as spines, trichomes, cuticle, or chemical compounds, including secondary metabolites such as phenolics and terpenes. Plants perceive herbivory by both mechanical and chemical means. Mechanical sensing can occur through the perception of insect biting, piercing, or chewing, while chemical signaling occurs through the perception of various herbivore-derived compounds such as oral secretions (OS) or regurgitant, insect excreta (frass), or oviposition fluids. Interestingly, ion …

Self-Organization In Models Of Cyclically Sheared Suspensions, Jikai Wang

Dissertations - ALL

This thesis presents a study of random self-organized systems using computer-simulated models inspired by cyclically-sheared non-Brownian suspensions of monodisperse spherical particles in a density-matched fluid. When driven at low Reynolds number, such systems have vanishing thermal fluctuations and only short-range interactions between individual particles. Nevertheless, they show intriguing collective behaviors at large length scales, such as a strong suppression of fluctuations in the number density. Such self-organized "hyperuniform" states can useful in industrial applications where well-controlled states can ease the processing of such materials.In Chapter 2, we propose a new way of generating hyperuniform suspensions, by incorporating slow gravity-driven sedimentation …

Vitamin D Modulates Rett Syndrome Phenotypes And Underlying Cellular Pathways In An Mecp2-Mutant Mouse Model, Mayara De Cassia Ribeiro

Dissertations - ALL

Rett syndrome (RTT) is a progressive and severe X-linked neurodevelopmental disorder caused by mutations in the transcriptional regulator MECP2. There is currently no effective treatment for RTT. Female RTT patients develop relatively normally during the first 6-18 months of life, after which they undergo a period of rapid regression, losing the ability to talk, walk and purposefully use their hands, in addition to suffering from deceleration of head growth, and onset of repetitive, autistic behaviors. RTT symptoms can be partially reversed by the re-expression of Mecp2 in adult mice, suggesting the potential for post-symptomatic therapeutic intervention. Among the many dysfunctions …

The Case For Intersectionality: An Intersectional Look At Disability In The Labor Market, Jennifer D. Brooks

Dissertations - ALL

While approximately 10% of adults ages 18 to 64 living in the United States identify as having a disability, workers with disabilities make up only 3% of the labor force (Livermore and Schimmel Hyde 2020; Paul et al. 2020). When compared to their non-disabled counterparts, those with disabilities have lower employment rates and earnings, are more likely to work in precarious and low wage jobs and report higher levels of workplace discrimination (BLS 2020; Maroto and Pettinicchio 2014b; Robert and Harlan 2006). Yet, recent evidence suggests that disabled people's labor market disadvantages may be disproportionately experienced by those with multiple …

Computational Methodologies For The Simulation And Analysis Of Low-Frequency Vibrations In Molecular Crystals, Sara Jean Dampf

Dissertations - ALL

Quantum mechanical models are used to calculate a host of physical phenomena in molecular solids ranging from mechanical elasticity to the energetic stability ordering of polymorphs. However, with the many software packages and methodologies available, it can be difficult to select the most suitable model for the problem at hand without prior knowledge. A promising approach for evaluating the performance of solid-state models is the comparison of the simulations to experimentally measured low-frequency (sub-200 cm-1) vibrational spectra. As this region is dominated by weak intermolecular forces and shallow potential energy surfaces, even slight miscalculations in the solid-state packing arrangements can …

Molecular Interfaces And Heterogeneous Bubble Nucleation From Heated Surfaces At Nanoscale, Manish Gupta

Dissertations - ALL

Heat transfer from a solid surface to fluid occurs in numerous applications, such as boilers, refrigerators, power electronics, etc., and include various underlying phenomena of thin-film evaporation, boiling, condensation, surface wetting, and droplet evaporation. Several studies show that heat transfer can be enhanced significantly by incorporating micro and nanoscale features onto surfaces. Phase change heat transfer plays an important role in dissipating energy from hot surfaces and distributing it to bulk liquid due to high latent heat of liquids. Boiling, a phase change heat transfer phenomenon, happens when the surface is heated to a temperature above the saturation temperature of …