Digital Commons Network^™

Integrated Processing Of Municipal Solid Waste For Maximizing Waste Reduction, Carbon Recovery And Fuel Production, Kameron J. King

Civil & Environmental Engineering Theses & Dissertations

Nationally and internationally, waste generation is increasing and along with it negative environmental impacts. Many people think waste ends at disposal; however, environmental impacts have already begun. Unfortunately, 50% of waste ends up in a landfill which is the third largest source of human related methane emissions and a leading cause of global climate change. This study investigated a novel waste management strategy in hopes of mitigating negative environmental effects caused by conventional waste management practices. The novelty of the study lies in the development of an integrated method of hydrothermal carbonization and an anaerobic digestion (HTC + AD) process …

Hydrothermal Processes For Extraction And Conversion Of Biomass To Produce Biofuels And Value-Added Products, Anuj Hemant Thakkar

Civil & Environmental Engineering Theses & Dissertations

An integrated biorefinery approach based on subcritical hydrothermal processes was developed to maximize utilization of biomass components by producing multiple products. Biomass from various sources like agricultural waste (lignocellulose), food waste (spent yeast), and dedicated cultivation (micro-algae) was used in this research.

Corn stover (agricultural waste) was hydrothermally pretreated to remove lignin and xylan while preserving most of the glucan. The pretreated corn stover was utilized to produce levulinic acid (thermochemically) and fermentable sugars (biochemically). The solid residue generated during levulinic acid production was utilized to produce biocarbon electrode material. The results generated from the experiments were used for designing …

Estimating The Risk Of Future Plastic Marine Debris Resulting From The Urban Coastal Built Environment, Kelly C. Jones

OES Theses and Dissertations

The growing urban built environment in the coastal zone poses an unknown risk to the marine biosphere as a source of marine debris. Plastic, since its introduction in the mid- 1900s, is now used in nearly all aspects of human life. Growth in human population and urbanization in coastal zones has resulted in the accumulation of large stocks of plastic in the coastal built environment, and these stocks are still growing exponentially. The coastal zone is exposed to a number of hazards including storms, tsunamis, and sea level rise, and most of these hazards are expected to change in the …

Covid-19, Technology, And The Math Classroom: Changes, Obstacles, And Victories Integrating Digitally, Lauren Fifield Bellamy

Teaching & Learning Theses & Dissertations

Secondary math teachers faced new experiences and struggles this past virtual school year due to the global COVID-19 pandemic. Nine secondary math teachers from a school division in southeastern Virginia participated in this qualitative single case study. Data collection included individual semi-structured interviews and technology integration artifacts. Through a three round coding process, ten themes emerged to answer the following three research questions: 1) In terms of curriculum, teaching methods, and assessments, how did teachers describe their pedagogical change in virtual learning? 2) How do teachers perceive student performance has changed within the virtual learning space? 3) From teachers’ perspectives, …

Genetically Engineered Thermosynechococcus Elongatus Bp1: Assessment Of Potential Biorisks And Biofuel Production, Thu Ho Anh Nguyen-Jones

Chemistry & Biochemistry Theses & Dissertations

According to the International Energy Outlook 2019, released by the U.S. Energy Information Administration, it is projected that the energy consumption will increase up to 50% between 2018 and 2050 worldwide. As fossil fuel being a finite source of energy with the risk of depletion, many countries are now facing an energy security crisis. Therefore, it is important to develop other renewable and sustainable energy sources that will allow countries to shift away from depending on fossil fuels. Among several types of renewable energy, biofuel production using genetically engineered cyanobacteria is capturing much interest due to its many advantages. Different …

Synthesis And Characterization Of 4,6-Protected Glucosamine Derivatives And Branched Glycoconjugates, Jonathan Bietsch

Chemistry & Biochemistry Theses & Dissertations

Low molecular weight gelators (LMWGs) are small molecules that self-assemble in appropriate solvents to form three dimensional networks that immobilize the solvent, creating a supramolecular gel. The self-assembly of LMWGs occurs through non-covalent interactions such as hydrogen bonding, aromatic interactions, donor-acceptor interactions, Van der Waals interactions, hydrophobic forces, halogen bonding, etc. Due to self-assembly occurring through reversible non-covalent interactions, supramolecular gels can undergo a gel to solution transformation. Because of this, these materials can be sensitive to external stimuli such as temperature changes, pH changes, and other stimuli that effect non-covalent interactions. This makes the synthesis of LMWG’s an appealing …

Design, Synthesis And Characterization Of Carbohydrate Based Macrocycles, Photo Responsive Derivatives, And Glycoconjugates Based Low Molecular Weight Gelators, Surya Bahadur Adhikari

Chemistry & Biochemistry Theses & Dissertations

Functional glycoconjugates are important classes of compounds with many applications in different research fields. Our lab has been studying the synthesis and applications of different classes of glycoconjugates ranging from macrocycles to sugar heterocycle derivatives. Due to the importance of these compounds, our research is based on development of synthetic methods for various carbohydrate derivatives. This dissertation includes introduction and overview of projects, followed by the synthesis and studies of several different series of glycomacrolactones. The second project focuses on two classes of photoresponsive molecules, the coumarins and diarylethenes. The third project involves the synthesis and self-assembling properties of isoxazole-based …

Emotion Regulation Variability And Relationship Functioning In Emerging Adulthood, Laura B. Kenneally

Psychology Theses & Dissertations

Emotion regulation is a transdiagnostic factor that functions as a crucial contributor to individual well-being and social functioning. Research seeking to identify adaptive or maladaptive strategies of emotion regulation has often focused on individual strategies, though emerging evidence suggests that what constitutes “adaptive” regulation is often context-dependent. Having a large repertoire of emotion regulation strategies that one is willing to use at different rates has been termed “emotion regulation variability,” and has been linked to positive individual outcomes. While the benefits of emotion regulation variability have been demonstrated on an individual level, the impact on romantic relationships has yet to …

Phytoplankton Community Response To Upwelling Events: Distribution And Abundance Investigated Using Genomic Methods, Sveinn V. Einarsson

OES Theses and Dissertations

Upwelling events are known to support blooms of phytoplankton, important primary producers at the base of the oceanic food web. Phytoplankton community structure changes in response to upwelling support higher trophic level growth and increased efficiency of carbon export from the euphotic zone. While these events occur globally, this study examined upwelling in coastal regions, where alongshore winds can drive Ekman transport and upwelling of deeper waters. The two upwelling regimes examined were the California Current System and the Alaskan Beaufort Sea. In the California Current System, the relative diatom community composition was examined using 18S sequencing to determine how …

Among Us, Kaixin Chen

Theses

The networked society provides an extremely complex environment where we are free to swim, and to sink. In this thesis, I used different materials and forms to visualize this concept. The final work is a series of human faces floating from the water surface with steady gaze. Affected by the background of my sculpture and oil painting, I explored how to combine the two, and drew a 3D portrait, then completely transformed from two-dimensional to three-dimensional, and produced a set of installations with repeated face elements. With the experience and emotional response to working three-dimensionally, I once again returned to …

Modeling The Speed And Timing Of American Sign Language To Generate Realistic Animations, Sedeeq Al-Khazraji

Theses

While there are many Deaf or Hard of Hearing (DHH) individuals with excellent reading literacy, there are also some DHH individuals who have lower English literacy. American Sign Language (ASL) is not simply a method of representing English sentences. It is possible for an individual to be fluent in ASL, while having limited fluency in English. To overcome this barrier, we aim to make it easier to generate ASL animations for websites, through the use of motion-capture data recorded from human signers to build different predictive models for ASL animations; our goal is to automate this aspect of animation synthesis …

Illinois State University, One Hundred And Sixty-Second Annual Commencement, December 2021, Illinois State University

Commencement Programs

Illinois State University
One Hundred and Sixty-Second Annual Commencement
December 2021

Restoring Female Agency: Wicked As A Feminist Fairy-Tale Revision, Erica Nicole Fox

Masters Theses

One method of promoting gender equality that has gained popularity in recent years involves revising the fairy tales, primarily the ones compiled and revised by Charles Perrault, Hans Christian Anderson, and the Grimm brothers, to create versions in which the female characters have agency and purpose outside of furthering patriarchal gender ideals. The primary goal of the feminist fairy-tale revision is to give the female characters agency, not because they are women, but because they are functioning characters within the story. While there are many authors who attempt to create fairy-tale revisions that embody a feminist perspective, not all are …

Phytoremediation Of Some Polluted Soils By Sudan Grass (Sorghum Sodanese L.)., Elsaid El-Hadidi, Ahmed Taha, Sally Abo El-Ezz

Mansoura Engineering Journal

A pot experiment was carried out in Soil Dep., College of Agric. Mans. Univ., to study the effect of using sudan grass for remediation of some polluted soils in Dakahlia governorate .Ten plant seeds per pot were sown on 25August,2014 and harvested on 10 October,2014. The experimental soils were taken from ten polluted locations to represent polluted soils in Dakahlia govrnorate from different sources i.e. (sewage, industry, traffic and agricultural drainage pollutions) as follows: Talkha fertilizer company adjacent area; El-Mansoura Sewage Station area; El-Mansoura Melting companies area; Town refuse - Sandob area; El-Mansoura Ratingat factory; El-Serw station Agric. Drainage; Gedilah …

University Recognizes Employees For 25 Years Of Service, Staff Report

University of Mississippi News

No abstract provided.

Tactile Materials In Practice: Understanding The Experiences Of Teachers Of The Visually Impaired, Mahika Phutane, Julie Wright, Brenda Veronica Castro, Lei Shi, Simone R. Stern, Holly Lawson, Shiri Azenkot

Special Education Faculty Publications and Presentations

Teachers of the visually impaired (TVIs) regularly present tactile materials (tactile graphics, 3D models, and real objects) to students with vision impairments. Researchers have been increasingly interested in designing tools to support the use of tactile materials, but we still lack an in-depth understanding of how tactile materials are created and used in practice today. To address this gap, we conducted interviews with 21 TVIs and a 3-week diary study with eight of them. We found that tactile materials were regularly used for academic as well as non-academic concepts like tactile literacy, motor ability, and spatial awareness. Real objects and …

Racial Diversity Of Texas School Teachers, Julie Ann Olguin-Phillips

Electronic Theses and Dissertations

There is a growing gap between the racial demographics of public-school teachers and their students. Teachers with demographic backgrounds similar to a school’s student population are often successful, particularly in Title 1 schools with high proportions of minority students; however, teacher turnover is high. The students in Texas public schools are a growing minority-majority population. Changes in the student body racial composition and other school-related variables could influence teacher workforce demographics. The focus of discussion of this quantitative research study is to determine the factors that predict the racial diversity of teachers in Texas high schools. The research questions addressed …

[Review Of] What Is A Complex System? By James Ladyman And Karoline Wiesner. New Haven (Connecticut): Yale University Press. $35.00 (Paper). Xi + 169 P.; Ill.; Index. Isbn: 978-0-300-25110-4. 2020., Joseph Robert Burger

Biology Faculty Publications

No abstract provided.

Twelve-Month Specific Igg Response To Sars-Cov-2 Receptor-Binding Domain Among Covid-19 Convalescent Plasma Donors In Wuhan, Cesheng Li, Ding Yu, Xiao Wu, Hong Liang, Zhijun Zhou, Yong Xie, Taojing Li, Junzheng Wu, Fengping Lu, Lu Feng, Min Mao, Lianzhen Lin, Huanhuan Guo, Shenglan Yue, Feifei Wang, Yan Peng, Yong Hu, Zejun Wang, Jianhong Yu, Yong Zhang, Jia Lu, Haoran Ning, Huichuan Yang, Daoxing Fu, Yanlin He, Dongbo Zhou, Tao Du, Kai Duan, Demei Dong, Kun Deng, Xia Zou, Ya Zhang, Rong Zhou, Yang Gao

Division of Basic Science Faculty Publications

To investigate the duration of humoral immune response in convalescent coronavirus disease 2019 (COVID-19) patients, we conduct a 12-month longitudinal study through collecting a total of 1,782 plasma samples from 869 convalescent plasma donors in Wuhan, China and test specific antibody responses. The results show that positive rate of IgG antibody against receptor-binding domain of spike protein (RBD-IgG) to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the COVID-19 convalescent plasma donors exceeded 70% for 12 months post diagnosis. The level of RBD-IgG decreases with time, with the titer stabilizing at 64.3% of the initial level by the 9th month. …

5-Ht Recruits Distinct Neurocircuits To Inhibit Hunger-Driven And Non-Hunger-Driven Feeding, Yanlin He, Xing Cai, Hailan Liu, Krisitine M. Conde, Pingwen Xu, Yongxiang Li, Chunmei Wang, Meng Yu, Yang He, Hesong Liu, Chen Liang, Tingting Yang, Yongjie Yang, Kaifan Yu, Julia Wang, Rong Zheng, Feng Liu, Zheng Sun, Lora Heisler, Qi Wu, Qingchun Tong, Canjun Zhu, Gang Shu, Yong Xu

Division of Basic Science Faculty Publications

Obesity is primarily a consequence of consuming calories beyond energetic requirements, but underpinning drivers have not been fully defined. 5-Hydroxytryptamine (5-HT) neurons in the dorsal Raphe nucleus (5-HTDRN) regulate different types of feeding behavior, such as eating to cope with hunger or for pleasure. Here, we observed that activation of 5-HTDRN to hypothalamic arcuate nucleus (5-HTDRN → ARH) projections inhibits food intake driven by hunger via actions at ARH 5-HT2C and 5-HT1B receptors, whereas activation of 5-HTDRN to ventral tegmental area (5-HTDRN → VTA) projections inhibits non-hunger-driven feeding via actions at 5-HT2C receptors. Further, hunger-driven feeding gradually activates ARH-projecting 5-HTDRN …

Genomics And Transcriptomics Landscapes Associated To Changes In Insulin Sensitivity In Response To Endurance Exercise Training, Louise Y. Takeshita, Peter K. Davidsen, John M. Herbert, Philipp Antczak, Matthijs K.C. Hesselink, Patrick Schrauwen, S. John Weisnagel, Jeremy M. Robbins, Robert E. Gerszten, Sujoy Ghosh, Mark A. Sarzynski, Claude Bouchard, Francesco Falciani

Division of Basic Science Faculty Publications

Despite good adherence to supervised endurance exercise training (EET), some individuals experience no or little improvement in peripheral insulin sensitivity. The genetic and molecular mechanisms underlying this phenomenon are currently not understood. By investigating genome-wide variants associated with baseline and exercise-induced changes (∆) in insulin sensitivity index (Si) in healthy volunteers, we have identified novel candidate genes whose mouse knockouts phenotypes were consistent with a causative effect on Si. An integrative analysis of functional genomic and transcriptomic profiles suggests genetic variants have an aggregate effect on baseline Si and ∆Si, focused around cholinergic signalling, including downstream calcium and chemokine signalling. …

Campus Community Invited To ‘Meet The Deans’ Of The Gwu College Of Arts & Sciences, Office Of University Communications

Gardner-Webb NewsCenter Archive

The campus community is invited to “Meet the Deans” of the Gardner-Webb University College of Arts & Sciences (CoA&S) on Thursday, Dec. 2, from 3 to 5 p.m. in Tucker Student Center. Dr. Shawn Holt, dean, and Dr. Jennifer Buckner, recently named associate dean, will greet guests and provide information about the CoA&S. Sweet treats and warm beverages will be served, and fun crafts will also be provided.

The Neglected “R”: Replicability, Replication, And Writing Center Research, Susanne Hall, Holly Ryan

The Writing Center Journal

This article makes an argument for the value of both replicable research and replication research in writing center studies. In their discussion of replicability, the authors argue that writing about empirical research so that this research can be replicated will improve the quality of communication in writing center studies whether or not replication studies are subsequently undertaken. The authors further provide for researchers specific guidance on how to create replicable studies, focusing on best practices for describing data sets and sampling, sharing surveys and interview protocols, detailing coding efforts, establishing infrastructure to share data sets, and writing about statistics. Further, …

College Of Natural Sciences Newsletter, December 2021, College Of Natural Sciences

College of Natural Sciences Newsletters and Reports

Volume 2, Issue 12

Page 1 Dean's Message
Page 2 Awards & Recognition
Page 2 Media Coverage of CNS
Page 3 Media Coverage Cont.
Page 4 Science as Art Competition
Page 5 Open PRAIRIE Data
Page 5 Grants Awarded in CNS

Impact Of Oncotype Dx Testing On Er+ Breast Cancer Treatment And Survival In The First Decade Of Use, Evelien Schaafsma, Baoyi Zhang, Merit Schaafsma, Chun Yip Tong, Lanjing Zhang, Chao Cheng

Dartmouth Scholarship

Background: The Oncotype DX breast recurrence score has been introduced more than a decade ago to aid physicians in determining the need for systemic adjuvant chemotherapy in patients with early-stage, estrogen receptor (ER)+, lymph node-negative breast cancer. Methods: In this study, we utilized data from The Surveillance, Epidemiology, and End Results (SEER) Program to investigate temporal trends in Oncotype DX usage among US breast cancer patients in the first decade after the introduction of the Oncotype DX assay. Results: We found that the use of Oncotype DX has steadily increased in the first decade of use and that this increase …

Natural Regeneration Dynamics And Survival Influenced By Abiotic And Biotic Factors In A Bottomland Hardwood Forest, Lydia J. Voth Rurup

Electronic Theses and Dissertations

Riparian ecosystems are vital to the landscape, providing critical services including water filtration and purification, flood and erosion control, carbon sequestration, biodiversity support, and aesthetic value. Bottomland hardwood forests, however, are threatened by invasive species, land loss/conversion, inconsistent or absence of harvesting disturbances, and altered hydrological patterns, leading to reduced success of desired, native species. This research assessed regeneration dynamics and one-year survival in a seasonally-flooded bottomland hardwood forest at Boggy Slough Conservation Area in East Texas to identify abiotic and biotic factors important for successful establishment of native regeneration. Areas sampled included two that were previously treated with herbicide …

Exploring That Fulbright Magic: A Transcendental Phenomenological Study Of Fulbright-Mescyt Alumni Who Return To The Dominican Republic, Joshabel De La Cruz

Dissertations

International higher education graduates may experience challenges related to reentry to their home countries as their expectations upon returning home may not match their reality (Alandejani, 2013; Butcher, 2002, Gaw, 2000). This study utilizes a transcendental phenomenological approach to understand the lived experiences of seven Fulbright-MESCYT alumni who completed U.S. graduate degree programs and returned home to the Dominican Republic (DR) between 2015 and 2018. The Fulbright-MESCYT Program in the DR is a joint initiative of the U.S. Embassy in Santo Domingo and the Dominican Ministry of Higher Education, Science and Technology (MESCYT) and adds funding for up to 10 …

Structured To Fail: Lessons From The Trump Administration’S Faulty Pandemic Planning And Response, Alejandro E. Camacho, Robert L. Glicksman

Michigan Journal of Environmental & Administrative Law

The Trump Administration’s response to the COVID-19 pandemic is a stark reminder that poorly designed government can be a matter of life and death. This article explains how the Administration’s careless and delayed response to the crisis was made immeasurably worse by its confused and confusing reallocation of authority to perform or supervise tasks essential to reducing the virus’s ravages.

After exploring the rationale for and impact of prior federal reorganizations responding to public health crises, the article shows how a combination of unnecessary and unhelpful overlapping authority and a thoughtless mix of centralized and decentralized authority contributed to the …

A Solution To The Hard Problem Of Soft Law, Keagan Potts

Michigan Journal of Environmental & Administrative Law

Administrative Agencies often rely on guidance documents to carry out their statutory mandate. Over the past few decades, the Food and Drug Administration (FDA) has been criticized for using soft law guidance documents to exercise powers beyond those authorized by Congress. Since attacks on the use of guidance documents persist and agencies need soft law to respond quickly and flexibly to rapid technological growth, it is essential to develop a solution that preserves this crucial regulatory mechanism and prevents its abuse. The most likely alternative to soft law guidance is formal regulation, which must be developed through the notice-and-comment process. …

Degradative Tubular Lysosomes Link Pexophagy To Starvation And Early Aging In C. Elegans, D A. Dolese, M P. Junot, B Ghosh, T J. Butsch, D A. Dolese, K A. Bohnert

Faculty Publications

Organelle-specific autophagy directs degradation of eukaryotic organelles under certain conditions. Like other organelles, peroxisomes are subject to autophagic turnover at lysosomes. However, peroxisome autophagy (pexophagy) has yet to be analyzed in a live-animal system, limiting knowledge on its regulation during an animal's life. Here, we generated a tandem-fluorophore reporter that enabled real-time tracking of pexophagy in live Caenorhabditis elegans. We observed that pexophagy occurred at a population of non-canonical, tubular lysosomes specifically during starvation and aging. Remarkably, in these contexts, tubular lysosomes were the predominant type of lysosome in the intestine, transforming from vesicles. Though we found that peroxisomes were …