Digital Commons Network^™

Virucidal N95 Respirator Face Masks Via Ultrathin Surface-Grafted Quaternary Ammonium Polymer Coatings, Mirco Sorci, Tanner D. Fink, Vaishali Sharma, Sneha Singh, Ruiwen Chen, Brigitte L. Arduini, Katharine Dovidenko, Caryn L. Heldt, Edmund F. Palermo, R Helen Zha

Michigan Tech Publications, Part 1

N95 respirator face masks serve as effective physical barriers against airborne virus transmission, especially in a hospital setting. However, conventional filtration materials, such as nonwoven polypropylene fibers, have no inherent virucidal activity, and thus, the risk of surface contamination increases with wear time. The ability of face masks to protect against infection can be likely improved by incorporating components that deactivate viruses on contact. We present a facile method for covalently attaching antiviral quaternary ammonium polymers to the fiber surfaces of nonwoven polypropylene fabrics that are commonly used as filtration materials in N95 respirators via ultraviolet (UV)-initiated grafting of biocidal …

Dancing With The Devil: Carnival And The True Witch Of The Witch Of Edmonton, James B. Barone

Student Theses

The most obvious carnivalesque aspects in Dekker, Ford and Rowley’s The Witch of Edmonton—the Morris dancers and their leader Cuddy Banks, and the shapeshifting demon Dog—have received the bulk of scholarly attention. However, very little has been written about the cagey, pregnant servant girl Winifred, who as I argue in this thesis more fully embodies Carnival’s aspects of rebirth and renewal. Winifred endures the play’s turmoil by inventing and reinventing herself. Her powers of creation are antithetical to the downfalls of the play’s two main characters—Frank Thorney and Elizabeth Sawyer, the play’s eponymous witch—as well as the mischief created by …

Udl In Practice, Trevor Boland

Excellence in Teaching Series

Trevor explored a number of resources and approaches that support universal design. Resources used or recommended by Trevor include:

Measure how long it takes to read a piece of text Readability calculator Convert Word into an Mp3 3 free short self enrol accessibility courses for educators, managers, and all staff. Finding accessible teaching tools Find your Assistive Technology - answer 3 questions Register for a free 3 day online Assistive Technology Event Inclusive Feedback Publication Choice of Assessment - page 71

Transformative Ecoliteracy Development In Postsecondary Education: Cultivating Intentional Relationships Through Garden-Based Learning, Shevawn Armstrong

Dissertations and Theses

Education can play a critical role in empowering learners to address the global, complex, and interconnected sustainability problems humanity currently faces. Ecoliteracy, as an educational aim, may support the cultivation of values, attitudes, and skills required for the development of sustainability solutions and our collective ability to design regenerative ways of living. However, empirical research that explores and supports the development of ecoliteracy in adults is limited. This grounded theory action research study aimed to contribute to this body of knowledge. This study explored how adult ecoliteracy and practical gardening skills may be cultivated through an intentionally designed, holistic, garden-based …

Tax Harmony: The Promise And Pitfalls Of The Global Minimum Tax, Reuven S. Avi-Yonah, Young Ran (Christine) Kim

Law & Economics Working Papers

The rise of globalization has become a double-edged sword for countries seeking to implement a beneficial tax policy. On one hand, there are increased opportunities for attracting foreign capital and the benefits that increased jobs and tax revenue brings to a society. However, there is also much more tax competition among countries to attract foreign capital and investment. As tax competition has grown, effective corporate tax rates have continued to be cut, creating a “race-to-the-bottom” issue.

In 2021, 137 countries forming the OECD/G20 Inclusive Framework on BEPS passed a major milestone in reforming international tax by successfully introducing the framework …

Rockin' Out In The Electronics Lab, Unh Communications And Public Affairs

UNH Today Archive

No abstract provided.

The Convergence Of Grace And Nature: Flannery O'Connor's Catholic Imagination, Katerina Jakub

English Theses, Dissertations, and Student Creative Activity

This thesis explores Flannery O’Connor’s Catholic imagination throughout her fiction, incorporating close readings of O’Connor’s short stories with her letters, essays, and prayer journal. The thesis also draws comparisons between O’Connor’s work and that of Graham Greene and Elizabeth Bishop to explore O’Connor’s unique perspective and style. O’Connor’s fiction flows from her Thomistic theology concerning the relationship between grace and nature, which she emphasizes throughout her writing. The first chapter presents a close reading of Graham Greene’s The End of the Affair paired with O’Connor’s “Greenleaf” and Benedict XVI’s Deus Caristas Est to argue that eros is fundamentally Christian. Greene …

Evaluation Of Missed Doses Of Pharmacologic Venous Thromboembolism Prophylaxis And The Incidence Of Venous Thromboembolism In Patients With Traumatic Orthopedic Injuries, Emily Ball, Ellen C. Omi, Yasmin F. Tootla, James C. Doherty, Katie M. Stephens, Mary Cala, Kelly Keating, Lina Piech

Scientific Day

No abstract provided.

Air Quality And Vehicular Emissions: Evaluating Vehicular Emission Contributions To And Distribution Of Ambient Particulate Matter Pollution With Low-Cost Sensors In Richmond, Virginia, Morgan Malstead

Environmental Studies Senior Seminar Projects

Hazardous air quality prematurely kills millions of people a year and exacerbates underlying health issues for millions more. Unsafe levels of particulate matter are typically associated with newly industrialized and developing countries, however, this is a misconception, especially when considering ambient air pollutants in densely packed urban areas. According to the Airbeam and Purple Air data collected on 07/15/2021, Richmond, Virginia has good air quality with the vast majority of values falling below the United States Environmental Protection Agency annual PM2.5 standard of 12 micrograms per cubic meter (μg/m3). Vehicular emissions may not account for a large percentage of PM2.5 …

Food Justice: An Empirical Analysis Of Food Landscapes And Population Health In A Large U.S. City, Ernest Baskin, Stephen J. Porth

Journal of Management for Global Sustainability

This study examines the challenge of “food justice” by investigating the relationships between food landscapes and the health and wellbeing of local communities in a large urban setting. We identify and discuss the implications of these relationships for advancing the U.N. Sustainable Development Goals of ending hunger, improving health and wellness for all, and promoting sustainable agriculture. Empirical results show that controlling for several health-related variables, rates of obesity in a community coincide with the incidence of food outlets with no or low produce available. That is, urban neighborhoods with higher numbers of stores selling mostly unhealthy food options and …

Whether In War-Torn Ukraine, Laos Or Spain, Kids Have Felt Compelled To Pick Up Crayons And Put Their Experiences To Paper, Paul Morrow

Materials from the University of Dayton Magazine Website

The drawings and paintings of children often express a mix of horror, fear, hope and beauty in times of war. Paul Morrow, fellow in the University of Dayton Human Rights Center, explains.

An Iterative Approach For Estimating The Sound Speed And Attenuation Constant Of Air In A Standing Wave Tube, Zhuang Mo, Guochenhao Song, Kang Hou, J Stuart Bolton

Publications of the Ray W. Herrick Laboratories

n the present work, an iterative method based on the four-microphone transfer matrix approach was developed for evaluating the sound speed and attenuation constant of air within a standing wave tube. In particular, when the air inside the standing wave tube is treated as the material under test, i.e., as if it were a sample of porous material, the transfer matrix approach can be used to identify the air’s acoustic properties. Note that the wavenumber within the tube is complex owing to the formation of a visco-thermal boundary layer on the inner circumference of the tube. Starting from an assumed …

Acoustical Properties Of Granular Aerogel Agglomerates, Amrutha Dasyam, Yutong Xue, Bhisham Sharma, J Stuart Bolton

Publications of the Ray W. Herrick Laboratories

Granular aerogel agglomerates obtain their unique mechanical and functional properties from their underlying mesoporous structure and intergranular interactions. In this presentation, we focus on the acoustical properties of granular aerogel layers and present experimental results characterizing the absorption behavior of granular silica aerogels with average particle sizes ranging from 5 μm to 2 mm. Our results show that the absorption behavior of granular aerogels strongly depends on the average particle size. To better understand this particle size dependence, we model the granular agglomerates using Biot’s limp and poro-elastic formulation. Finally, we use the developed model to design layered aerogel …

Sex-Specific Mitochondrial Dynamics And Mitophagy Response To Muscle Damage, Hui Ying Luk, Nigel C. Jiwan, Casey R. Appell, Danielle E. Levitt, Jakob L. Vingren

School of Medicine Faculty Publications

Muscle damage imposes stress on mitochondria resulting in mitochondrial fusion, fission, and mitophagy. Testosterone is a regulator of these processes. However, no study has examined the effect of sex-specific resistance exercise (RE)-induced hormonal response on mitochondrial dynamics and mitophagy after muscle damage in untrained men and women. Untrained men and women performed two sessions of 80 unilateral maximal eccentric knee extensions (ECC) followed by upper-body RE (ECC+RE) aimed to induce hormonal changes and maintain a similar lower body demands between conditions or 20 min seated rest (ECC+REST). Vastus lateralis samples were analyzed for gene and protein expression of OPA1, MFN1, …

Assessing The Activity Of Antimicrobial Peptides Against Common Marine Bacteria Located In Rotifer (Brachionus Plicatilis) Cultures, Chelsea Woods, Lindsey Woolley, Gavin Partridge, Mengqi Chen, Evan F. Haney, Robert E.W. Hancock, Nicky Buller, Andrew Currie

Fisheries Research Articles

Rotifers are used as the first feed for marine fish larvae and are grown in large cultures that have high loads of organic matter and heterotrophic bacteria; these bacteria are passed on to the developing fish larvae and can potentially lead to bacterial infections. A modified minimum inhibitory concentration (MIC) protocol for antimicrobial peptides was used to determine the potency of ten antimicrobial peptides (AMPs) in artificial seawater relevant to a rotifer culture (salinity of 25‰) against common marine pathogens. All of the AMPs had antimicrobial activity against the bacterial isolates when the salt concentration was approximately zero. However, in …

Cloudbots: Autonomous Atmospheric Explorers, Akash Binoj

Honors Scholar Theses

The CloudBot is an autonomous weather balloon that operates on the principle of variable buoyancy to ascend and descend in the atmosphere. This project aims to develop a device that will collect atmospheric measurements and communicate them mid-flight. The apparatus consists of a helium-filled balloon, the robotic payload, and an air cell. The fixed-volume helium balloon at the top provides an upwards buoyancy force, while the air cell at the bottom can hold a variable amount of pressure to adjust the weight of the CloudBot. By doing so, it is able to travel in storm conditions and collect valuable atmospheric …

Identification Of Burning Temperature Of Burnt Rocks In Northern Shaanxi Based On Thermoacoustic Emission Technology, Sun Qiang, Wang Shaofei, Ge Zhenlong, Wei Shaoni, Ding Xiaoying

Coal Geology & Exploration

The identification of the burning temperature of burnt rocks has important guiding significance for the formation and evolution of burnt rocks. Based on the thermal Kaiser effect, the threshold temperature of burnt rock in Zhangjiamao, Shenmu, Northern Shaanxi Province is predicted through the acoustic emission (AE) acumulated energy and the changes of parameters RA (rise time/amplitude) and AF (average frequency) during heat treatment. The results show that the thermoacoustic emission characteristics of burnt rocks can effectively identify the burning temperature of burnt rocks, and it is basically consistent with the petrographic analysis of the temperature experienced by the burnt rocks. …

Growing Racial Diversity In Rural America: Results From The 2020 Census, Kenneth M. Johnson, Daniel Lichter

Carsey Publications

In this brief, authors Kenneth Johnson and Daniel Lichter report that although population declines were widespread between 2010 and 2020, rural America became more racially and ethnically diverse. In part, the recent uptick in racial diversity in rural America is a consequence of White population decline.

Rural America remains predominately non-Hispanic White with 35 million White residents constituting 76 percent of the rural population according to the 2020 Census. This represents a decline from 79.8 percent in 2010. The number of rural residents who are members of a racial or ethnic minority increased to 11 million between 2010 and 2020, …

Psychological Status And Work Rehabilitation Outcomes, Mitchell R. Voss, Jennifer Homa

Scientific Day

No abstract provided.

Pediatric Visual Acuity Quality Improvement Project, Jeremy Loescher, Lauren Miller, Gina Schueneman, Elise Halajian, Sanjana Soni, Tatum Scarpato, Philip Gutsell

Scientific Day

No abstract provided.

Chiral Analysis Of Methamphetamine In Hair Samples, Kristen Payes

Student Theses

Methamphetamine (MAMP) is a highly addictive illicit drug typically abused for its nervous system stimulating effects. Conversely, methamphetamine has therapeutic use treating attention deficit hyperactivity disorder, controlling appetite and assisting with weight loss, and is available as the pure l-isomer in over-the-counter (OTC) nasal inhalers due to its decongestant activity. Because l-methamphetamine (l-MAMP) is available in OTC form, forensic guidelines require a sample to contain greater than 20% d-methamphetamine (d-MAMP) when classifying results as consistent with illicit MAMP use. Chiral chromatographic analysis is capable of distinguishing between l-MAMP and d-MAMP. This …

Lifecycle Reactive Transport Modeling For Assessing Integrity In Offshore Energy Systems, Temitope Ayokunle Ajayi

LSU Doctoral Dissertations

Subsurface leaks and spills are a matter of significant concern to the oil and gas industry because of their impact on health, safety and environment. It is thus important to study and assess the integrity of our energy systems and the physico-chemical processes that affect them.

To avoid leakage of fluids from wellbores, barrier materials are used for sealing formation fluids and creating a single flow path through the well. These barrier materials are constantly subjected to subsurface fluid fluxes and temperature, pressure and chemical conditions over the extended periods the wells remain underground. This makes it imperative to assess …

Comparative Studies Between The Murine Immortalized Brain Endothelial Cell Line (Bend.3) And Induced Pluripotent Stem Cell-Derived Human Brain Endothelial Cells For Paracellular Transport, Jiahong Sun, Weijun Ou, Derick Han, Annlia Paganini-Hill, Mark J. Fisher, Rachita K. Sumbria

Pharmacy Faculty Articles and Research

Brain microvascular endothelial cells, forming the anatomical site of the blood-brain barrier (BBB), are widely used as in vitro complements to in vivo BBB studies. Among the immortalized cells used as in vitro BBB models, the murine-derived bEnd.3 cells offer culturing consistency and low cost and are well characterized for functional and transport assays, but result in low transendothelial electrical resistance (TEER). Human-induced pluripotent stem cells differentiated into brain microvascular endothelial cells (ihBMECs) have superior barrier properties, but the process of differentiation is time-consuming and can result in mixed endothelial-epithelial gene expression. Here we performed a side-by-side comparison of the …

Table Of Contents, The Editors

Coal Geology & Exploration

No abstract provided.

A Review：Geological Feasibility And Technological Applicability Of Underground Coal Gasification, Jiang Xiuming, Wu Caifang

Coal Geology & Exploration

Underground coal gasification (UCG) is a potential new method of coal utilization, which is of great significance for alleviating China’s energy crisis, ensuring national energy security, and achieving carbon peaking and carbon neutrality goals. It has always been valued by countries all over the world. On the suitability of UCG resource conditions, the feasibility of process and technology, and the controllability of environmental impact, this paper summarizes the development status of UCG technology, and clarifies the coal resource reserves suitable for UCG technology, different standards of geological area selection and location selection technology, the development history and applicable conditions of …

Spatial Distribution Of Harmful Trace Elements In Chinese Coals, Cao Qingyi, Ren Wenying, Liang Chaoming, Zhang Yufei, Yang Liu

Coal Geology & Exploration

The potential impact of harmful trace elements in coal on the ecological environment and human health is one of the hot topics in the fields of geochemistry and energy environment. Geochemical mapping plays an important role in the deep understanding of geochemical processes and their changing laws. However, previous studies have not provided the national geochemical maps of harmful trace elements in Chinese coals. In this study, the content data of 1 167 Be, 1 315 Co, 1 406 Cu, 1 191 Mo, 1 247 Th, and 1 390 Zn in Chinese coal samples are analyzed, and their average contents …

Accumulation Mode Of Middle-Low Rank Coalbed Methane In Houxia Basin，Xinjiang, Tu Zhimin, Che Yanqian, Li Peng, Lin Wenji

Coal Geology & Exploration

There are successful cases of large-scale CBM development of low-rank coal abroad. Though China is rich in low-rank CBM resources, their exploration and development progress is slow. Considering the low exploration degree and for the purpose of further understanding the accumulation conditions of medium-low rank CBM and guiding exploration practice in Houxia Basin, seismic and geological analysis, as well as coal petrography analysis and drainage production data of drilled wells are carried out in the study area. The results show that the coal seams are characterized by complex structure, large thickness (4.1-24.3 m), stable development, large difference in gas content …

Eefficient Fracturing Technology And Fine Drainage System Of Ultra-Deep Coalbed Methane In Southeast Chongqing：A Case Study Of Ny1 Well, Fang Dazhi, Cheng Zehu, Li Jiaxin

Coal Geology & Exploration

According to the results of China’s new round of coalbed methane (CBM) resource evaluation, the CBM development mainly focuses on medium and shallow coal seams, and the geological conditions of deep-ultra deep coal reservoirs are more complicated. Thus, the reservoir fracturing technology and drainage management technology are two major factors in the development of CBM wells for deep coal reservoirs. In the area of southeast Chongqing, the coal seam of Longtan Formation is as deep as nearly 2 000 m, and there is no experience in ultra-deep CBM well development in this area. The NYI well is taken as an …

Ground Development Technology And Engineering Application Of Cbm In Coal Mine Goafs： A Case Study Of Jincheng Mining Area In Qinshui Basin, Zhou Xianjun, Li Guofu, Li Chao, Wang Zheng, Li Jiangbiao

Coal Geology & Exploration

There are still rich CBM resources in goafs after coal mining, and the resource evaluation, development and utilization have dual significance of environmental protection and resources. In recent years, ground drilling has been actively explored in Jincheng, Xishan and Yangquan mining areas in Shanxi Province to extract CBM in the goafs. However, in the process of ground development of CBM, due to water accumulation in the goafs, confined water gushing from overlying strata and other reasons, there is no gas production or low gas extraction from ground drilling. Taking Yuecheng Coal Mine in Jincheng, Shanxi as an example, this paper …

Geological Structure Detection With Tunnel Transient Electromagnetic Kirchhoff 2d Migration Imaging, Qi Zhipeng, Guo Jianlei, Sun Naiquan, Li Xiu, Fan Yanan

Coal Geology & Exploration

The green construction of tunnel requires not only predicting disaster anomalies such as water inrush and mud inrush in front of tunnel face, but also identifying geological structure to support disaster warning and prevention. The traditional transient electromagnetic interpretation method can only provide resistivity information, which not meet the requirements of tunnel geological disaster management. Therefore, virtual wavefield imaging technology is introduced into the tunnel detection to achieve comprehensive interpretation of the electrical information and structures of disaster anomalies. Firstly, transient electromagnetic data is transformed into virtual wave field. Then, the resistivity imaging method was used to calculate the resistivity …