Digital Commons Network^™

Investigation Of The Electron Coefficients Of (Ar, He, N2, O2) Gases In The Ionosphere, Aseel A. Temur, Ala F. Ahmed

Baghdad Science Journal

In this study, the electron coefficients; Mean energy , Mobility and Drift velocity of different gases Ar, He, N2 and O2 in the ionosphere have been calculated using BOLSIG+ program to check the solution results of Boltzmann equation results, and effect of reduced electric field (E/N) on electronic coefficients. The electric field has been specified in the limited range 1-100 Td. The gases were in the ionosphere layer at an altitude frame 50-2000 km. Furthermore, the mean energy and drift velocity steadily increased with increases in the electric field, while mobility was reduced. It turns out that there is a …

An Evaluation Of The Activity Of Prepared Zinc Nanoparticles With Extracted Alfalfa Plant In The Treatment Of Heavy Metals, Zainab Ridha Al-Bahadili, Abbas Ali Salih Al-Hamdani, Farqad Abdullah Rashid, Labeeb Ahmed Al-Zubaidi, Suha Mohamed Ibrahim

Baghdad Science Journal

The alfalfa plant, after harvesting, was washed, dried, and grinded to get fine powder used in water treatment. We used the alfalfa plant with ethanol to make the alcoholic extract characterized by using (GC-Mass, FTIR, and UV) spectroscopy to determine active compounds. Alcoholic extract was used to prepare zinc nanoparticles. We characterized Zinc nanoparticles using (FTIR, UV, SEM, EDX Zeta potential, XRD, AFM). Zinc nanoparticle with Alfalfa extract and alfalfa powder were used in the treatment of water polluted with inorganic elements such as Cr, Mn, Fe, Cu, Cd, Ag by (Batch processing). The batch process with using alfalfa powder …

Land Use Change In Baghdad City And Assessment Of The Jadriyah And Umm Al- Khanazeer Island Important Bird Area (Iba) From 1984 To 2020, Nadheer A. Fazaa, Abdulrahman B. Ali, Ahmad Jm Al-Jabinawi, Richard Francksen, Mark J. Whittingham

Baghdad Science Journal

Land use change, particularly the expansion of urban areas and associated human activities at the expense of natural and semi-natural areas, is a major ecological issue in urban areas around the world. Climate change being a very strong additional driver for changing the temperature and habitat in the cities. This also applies to Baghdad, Iraq, where urbanisation and climate change exerts a major pressure on the natural habitats of the city, and thus may affect the ability of city planners to adapt to future climate change scenarios. Here we present evidence of substantial growth in urban areas, increases in temperature, …

A Security And Privacy Aware Computing Approach On Data Sharing In Cloud Environment, Mustafa Azeez Al Mayyahi, Seyed Amin Hosseini Seno

Baghdad Science Journal

Today, the role of cloud computing in our day-to-day lives is very prominent. The cloud computing paradigm makes it possible to provide demand-based resources. Cloud computing has changed the way that organizations manage resources due to their robustness, low cost, and pervasive nature. Data security is usually realized using different methods such as encryption. However, the privacy of data is another important challenge that should be considered when transporting, storing, and analyzing data in the public cloud. In this paper, a new method is proposed to track malicious users who use their private key to decrypt data in a system, …

Short Text Semantic Similarity Measurement Approach Based On Semantic Network, Naamah Hussien Hameed, Adel M. Alimi, Ahmed T. Sadiq

Baghdad Science Journal

Estimating the semantic similarity between short texts plays an increasingly prominent role in many fields related to text mining and natural language processing applications, especially with the large increase in the volume of textual data that is produced daily. Traditional approaches for calculating the degree of similarity between two texts, based on the words they share, do not perform well with short texts because two similar texts may be written in different terms by employing synonyms. As a result, short texts should be semantically compared. In this paper, a semantic similarity measurement method between texts is presented which combines knowledge-based …

Forecasting Ride-Hailing Across Multiple Model Frameworks, Christopher Stephen Day

Theses and Dissertations

The advent of on-demand transport modes such as ride-hailing and microtransit has challenged forecasters to develop new methods of forecasting the use and impacts of such modes. In particular, there is some professional disagreement about the relative role of activity-based transportation behavior models -- which have detailed understanding of the person making a trip and its purpose -- and multi-agent demand simulations which may have a better understanding of the availability and service characteristics of on-demand services. A particular question surrounds how the relative strengths of these two approaches might be successfully paired in practice. Using daily plans generated by …

The Cycle Of Book Publishing Through A Queer Lens, Aly Gilmore

Master of Arts in Professional Writing Capstones

This capstone assesses the current landscape of the publishing industry with regard to Queer authors and stories that have been published within the United States. It will start off with a literature review utilizing secondary research upon the current publishing landscape, as well as the rules that guide how writing craft is constructed and taught. Within this section, I also unpack personal experiences from working in a local bookstore as well as integrating some information from interviews from individuals with connections to the publishing industry. It will conclude with an autoethnography, in which I reflect how my own experiences intertwine …

Tiptoeing Through The Tulips At Seventy: A Memoir, Fran Miele

Master of Arts in Professional Writing Capstones

This is a memoir about my lifetime search for clarity about my gender identity. My primary goal for the project was to catalog the steps I took in the sometimes-tortured and confusing path I followed over the course of my life, from childhood to late adulthood, striving to understand who and what I am in terms of my identity and how, once it was clarified in my mind, coming to terms with it and, at the ripe old age of seventy, taking the steps necessary to affirm it by way of the male-to-female transition. A secondary, incidental goal was …

Courier Of Souls, Brian Cochran

Master of Arts in Professional Writing Capstones

Abriel is a courier in a world plagued by curses cast by spiteful deities, and the only safe haven from curses are the roads themselves, which cause curses to burn. Following in her father’s footsteps, she strives to match his skills as a courier, and respect the legacy of her adoptive father, who saved her from a life of abandonment and rejection.

Investigating Mindfulness And Practice Strategies In The K-12 Music Curriculum, Emily Foltz

Honors Projects

The purpose of this project was to uncover how music educators teach students to practice effectively and to discover effective mindfulness tools and strategies that could be used to enhance music practice. My aim was to uncover methods of mindful practice and integrate them into a model for effective music practice that teachers can incorporate into their instruction. The research questions that guided this project include: 1) How are music educators teaching students to practice effectively? 2) How does mindfulness affect music practice? 3) What are effective strategies for teaching mindful instrumental music practice in the K-12 classroom? Is there …

Placing The Cart Before The Horse: E-Records Policy Experiences And Lessons From Zimbabwe’S Provincial Government, Samson Mutsagondo, Petronella Katekwe

Library Philosophy and Practice (e-journal)

There is remarkable growth in use of electronic records in Zimbabwe. The professional management of such records is brought under spotlight as government ministries in the Midlands province of Zimbabwe manage electronic records without electronic records policies in place. The absence of electronic records policies implies lack of guidance regarding what should be done, how, when, why and by whom. The implementation of electronic records programmes in provincial government ministries before formulating and mobilising policies that guide such programmes is akin to placing the cart before the horse. Developing countries which face similar scenarios may take a leaf from the …

There's A Hole In My Heart: A Case Of An Unrepaired Vsd, Brittany Hartman, Alex Dwyer, Robert Dejoy

Einstein Health Papers

No abstract provided.

Efficacy And Safety Of Pacritinib Vs Placebo For Patients With Severe Covid-19: A Phase 2 Randomized Clinical Trial, John Cafardi, Carole Miller, Howard Terebelo, Chad Tewell, Sadia Benzaquen, David Park, Pamela Egan, Daniel Lebovic, Kristen Pettit, Eric Whitman, Douglas Tremblay, Jonathan Feld, Sarah Buckley, Karisse Roman-Torres, Jennifer Smith, Adam Craig, John Mascarenhas

Einstein Health Papers

IMPORTANCE: The morbidity and mortality associated with COVID-19 remain high despite advances in standard of care therapy, and the role of anti-inflammatory agents that inhibit the interleukin 6/JAK2 pathway is still being elucidated.

OBJECTIVE: To evaluate the efficacy and safety of the oral JAK2/IRAK1 inhibitor pacritinib vs placebo in the treatment of adults with severe COVID-19.

DESIGN, SETTING, AND PARTICIPANTS: This phase 2, double-blind, placebo-controlled, randomized clinical trial enrolled hospitalized adult patients with severe COVID-19 at 21 centers across the US between June 2020 and February 2021, with approximately 1.5 months of safety follow-up per patient. Data analysis was performed …

Nanoscale Imaging Of Antiferromagnetic Domains In Epitaxial Films Of Cr2O3 Via Scanning Diamond Magnetic Probe Microscopy, Adam Erickson, Syed Qamar Abbas Shah, Ather Mahmood, Ilja Fescenko, Christian H. Binek, Adbelghani Laraoui

Department of Mechanical and Materials Engineering: Faculty Publications

We report direct imaging of boundary magnetization associated with antiferromagnetic domains in magnetoelectric epitaxial Cr₂O₃ thin films using diamond nitrogen vacancy microscopy. We found a correlation between magnetic domain size and structural grain size which we associate with the domain formation process. We performed field cooling, i.e., cooling from above to below the Néel temperature in the presence of a magnetic field, which resulted in the selection of one of the two otherwise degenerate 180° domains. Lifting of such a degeneracy is achievable with a magnetic field alone due to the Zeeman energy of a weak …

Exposure Of Egyptian Rousette Bats (Rousettus Aegyptiacus) And A Little Free-Tailed Bat (Chaerephon Pumilus) To Alphaviruses In Uganda, Rebekah C. Kading, Erin M. Borland, Eric C. Mossel, Teddy Nakayiki, Betty Nalikka, Jeremy P. Ledermann, Mary B. Crabtree, Nicholas A. Panella, Luke Nyakarahuka, Amy T. Gilbert, Julian C. Kerbis-Peterhans, Jonathan S. Towner, Brian R. Amman, Tara K. Sealy, Barry R. Miller, Julius J. Lutwama, Robert M. Kityo, Ann M. Powers

United States Department of Agriculture Wildlife Services: Staff Publications

The reservoir for zoonotic o’nyong-nyong virus (ONNV) has remained unknown since this virus was first recognized in Uganda in 1959. Building on existing evidence for mosquito bloodfeeding on various frugivorous bat species in Uganda, and seroprevalence for arboviruses among bats in Uganda, we sought to assess if serum samples collected from bats in Uganda demonstrated evidence of exposure to ONNV or the closely related zoonotic chikungunya virus (CHIKV). In total, 652 serum samples collected from six bat species were tested by plaque reduction neutralization test (PRNT) for neutralizing antibodies against ONNV and CHIKV. Forty out of 303 (13.2%) Egyptian rousettes …

Safety And Efficacy Of Salvage Therapy With Laser Interstitial Thermal Therapy For Malignant Meningioma Refractory To Cesium-131 Brachytherapy: Illustrative Case, Clifford Yudkoff, Aria Mahtabfar, Keenan Piper, Kevin Judy

Department of Neurosurgery Faculty Papers

BACKGROUND

Anaplastic meningioma are rare, cancerous tumors of the central nervous system that often require multimodal therapy for tumor control. Both laser interstitial thermal therapy (LITT) and brachytherapy with implanted cesium-131 metallic seeds have demonstrated efficacy in the treatment of recurrent and resistant anaplastic meningioma; however, their safety as a dual therapy has never been reported.

OBSERVATIONS

In this report, the authors present a case of a 53-year-old female who received LITT in combination with brachytherapy after surgical and radiation treatment options had been exhausted. The authors discuss the unique safety concern of thermal injury with this treatment combination and …

Surveilling Threat: The Roles Of Ideology And Threat Perceptions In Support For Islamophobic Policy, Aeleah M. Granger, Kimberly B. Kahn, Joel S. Steele

Psychology Faculty Publications and Presentations

After the attacks on 9/11, Muslims in the United States were the targets of increased surveillance by law enforcement on the basis of their religious identity, often resulting in mistreatment and unjustified imprisonment. The current study examined ideologies that are associated with Islamophobia and support for police surveillance of Muslims, as well as specific types of intergroup threat perceptions that mediate these relationships. Participants (N = 603) completed a survey measuring Social Dominance Orientation (SDO), Right-wing Authoritarianism (RWA), Nationalism, intergroup threat perceptions, Islamophobia, and support for an anti-Muslim police surveillance policy. Results demonstrated that higher levels of SDO, RWA, and …

Chimes: December 5, 2022, Calvin University

Chimes

Solar project moving towards 2023 installation by David Ogboro

SPAUD program expanding to meet demand by Grace Buller

Calvin connections win major elections by Katie Rosendale

Betsy DeVos visit spurs engagement, dialogue by Savannah Shustack & Maya Oeverman

Learning in the messy middle: Student experiences of Calvin's political climate by Adelaide Mei & Hadassa Ribeiro

Men's and women's basketball off to strong starts by Lauren Nyong

MLK today: Former Calvin professor's new book on U.S. societal issues by Gabriel Choi

Students arts orgs make space for rest and expression despite challenges by Kipp De Man

Pyridine Modifications Regulate The Electronics And Reactivity Of Fe–Pyridinophane Complexes, Magy A. Mekhail, Kristof Pota, Sugam Kharel, David M. Freire, Kayla N. Green

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

12-Membered pyridinophanes are the focus of many studies as biological mimics, chelators, and catalytic precursors. Therefore, the desire to tune the reactivity of pyridinophanes to better control the applications of derivative metal complexes has inspired many structure–activity relationship studies. However, the separation of structural versus electronic changes imparted by ligand modification has made these structure–activity relationship studies of transition metal catalysts challenging to define. In this work we show that 4-substitution of the pyridine ring in 12-membered tetra-aza pyridinophanes successfully provides a regulatory handle on the electronic properties of the metal center and, therefore, the catalytic C–C coupling activity of …

Introducción: Turismo En Las Tierras De Los Mayas, Cristina Oehmichen

Maya America: Journal of Essays, Commentary, and Analysis

Spanish Introductory Note

A Rebel Territory Behind The Tourist Scene: Negotiating National Belonging And Indigeneity In Quintana Roo, Mélissa Elbez

Maya America: Journal of Essays, Commentary, and Analysis

When we think of tourism or migration, we think of international mobility. However, the history of Quintana Roo teaches us that tourism and migration can be forces of nationalization. This article invites us to revisit the history of the southeast Yucatan peninsula, in order to understand the mechanisms that presided over its inclusion into the Mexican nation and the logic of the resistance movement that was opposed to it. Furthermore, this article delves into the ritual practices, social organization and territoriality inherited from the Cast War, that are kept alive by the rebels’ descendants (Cruzoob), unbeknownst to the gaze of …

Las Vías De La Mayanización: Turismo, Tren Maya Y Representaciones De La Mayanidad En La Península De Yucatán, Marco Almeida Poot, Samuel Jouault, Yassir Rodríguez Martínez

Maya America: Journal of Essays, Commentary, and Analysis

En este trabajo se analiza cómo diversos actores sociales, autoidentificados o no como mayas, activan variadas representaciones de la mayanidad ante el Proyecto Tren Maya en su fase de construcción, tanto para gobernar la diversidad y promover el desarrollo, como para obtener beneficios económicos principalmente de actividades vinculadas al turismo. Con este propósito, se ofrece la ruta conceptual que nos permite hablar de representaciones de la mayanidad. Posteriormente, se exponen tres ejemplos que visibilizan los tipos de representación, así como las estrategias concretas de los actores ante el Proyecto Tren Maya.

Brave Storytelling: Diasporic Indigenous Students, Vulnerability, And The Arts, Luis Javier Pentón Herrera

Maya America: Journal of Essays, Commentary, and Analysis

In this article, I explore how vulnerability is imposed on diasporic Indigenous students in U.S. classrooms and how, through the arts, language and literacy educators can remove these vulnerabilities. For this, I weave elements of storytelling to first introduce Mariela and diasporic Indigenous students. Then, I share two examples of how my diasporic Indigenous students used poetry and drawing in our high school English for Speakers of Other Languages (ESOL) classroom to overcome vulnerabilities imposed on them by our school system. For clarification, throughout this manuscript, I use the term diasporic Indigenous students to describe Indigenous students who migrated to …

Introduction: Tourism In The Lands Of The Maya, Cristina Oehmichen

Maya America: Journal of Essays, Commentary, and Analysis

English Introductory Note

Conjuro De Las Nueve Palabras, Donny Limber De Atocha Brito May

Maya America: Journal of Essays, Commentary, and Analysis

Conjuro de las Nueve Palabras es un poema original de Donny Limber de Atocha Brito May. Este poema en español ha sido traducido del maya yucateco que también aparece en este número de América Maya.

Biographies/Biografías, Cristina Oehmichen, Adriana Cruz-Manjarrez

Maya America: Journal of Essays, Commentary, and Analysis

Author Biographies

Effects Of Antecedent Precipitation Amount And Covid-19 Lockdown On Water Quality Along An Urban Gradient, Daniel Ramirez, Heejun Chang, Katherine Gelsey

Geography Faculty Publications and Presentations

Water quality is affected by multiple spatial and temporal factors, including the surrounding land characteristics, human activities, and antecedent precipitation amounts. However, identifying the relationships between water quality and spatially and temporally varying environmental variables with a machine learning technique in a heterogeneous urban landscape has been understudied. We explore how seasonal and variable precipitation amounts and other small-scale landscape variables affect E. coli, total suspended solids (TSS), nitrogen-nitrate, orthophosphate, lead, and zinc concentrations in Portland, Oregon, USA. Mann–Whitney tests were used to detect differences in water quality between seasons and COVID-19 periods. Spearman’s rank correlation analysis was used to …

Apocalypse Eternal: "The Road" And "Parable" Series As Pilgrimage, Caleb Gurule

Senior Honors Theses

Octavia Butler’s Parable of the Sower and Cormac McCarthy’s The Road represent two different views on how humans create meaning in a postapocalyptic world. The authors’ writings utilize the critical dystopia genre, in which the protagonists’ surroundings are bleak but the possibility of redemption remains. As Butler’s Lauren Olamina travels from her burned-down home to a place where she can begin a new community with her religion, Earthseed, as the foundational structure, she brings together a group of diverse and useful people who aid her in her pilgrimage to a better place. The protagonist’s identity as a mentally impaired black …

Caribbean Reef-Building Coral-Symbiodiniaceae Network: Identifying Symbioses Critical For System Stability In A Changing Climate, Shaman Patel

All HCAS Student Capstones, Theses, and Dissertations

Increasing global ocean temperatures and frequency of marine heatwaves pose dire consequences for coral reefs. High temperatures often lead to disruptions in coral symbiosis resulting in coral bleaching, increasing the mortality of corals. However, corals can potentially avoid bleaching peril by associating with thermally tolerant symbionts. Here we provide a tool for understanding symbiosis network stability of Caribbean reef-building corals. We created a network of Caribbean hermatypic corals and their associated Symbiodiniaceae phylotypes. A bleaching model was applied to this network to test for resilience and robustness (R50) to thermal stress. It was also layered with trait data for coral …

Tennessee Education Lottery Corporation For The Year Ended June 30, 2022, Tennessee. Comptroller Of The Treasury.

Financial and Compliance Audit Reports

No abstract provided.