Digital Commons Network^™

Monitoring Damage Occurrence, Post-Peak Crack Propagation And Air Permeability In Concrete Using The Brazilian Indirect Tension Test, Angel M. Padilla

Civil Engineering ETDs

This research aims to investigate the relationship between stress, damage, crack propagation, and permeability evolution in concrete. A novel experimental test method is presented that enables monitoring post-peak cracking behavior of concrete using the Brazilian tension test by slowing crack propagation while concurrently measuring permeability and monitoring damage propagation using acoustic emission techniques. The modified Brazilian test method utilizes spring supports in parallel to the test specimen to off-load the test specimen incrementally to slow down the post-peak crack propagation. A vacuum flow system is attached to the rear side of the concrete during loading to measure apparent air permeability …

Students Awareness About Online Classes During The Pandemic Of Covid 19 With Special Reference To Affiliated Colleges Of Manonmaniam Sundaranar University, Tirunelveli, Dr.P.Balasubramanian Subramanian Bala Subramanian, Shanmugam A.P

Library Philosophy and Practice (e-journal)

“Purpose of education is to moralise and socialise the people,” said Dr B. R. Ambedkar. The role of education in the holistic development of a society is immeasurable because good education shapes people right from their childhood and thus the entire society. That’s why every developed civilisation had given keen importance to education in any form. The way people get educated is a reflection of the culture of that period. It has travelled through rock carvings, manuscripts, papers and today it has reached our smartphones due to the Covid’19 Pandemic situation. So, the researcher attempted to study the College Students …

Bibliometrics Visualization Of Desidoc Journal Of Library & Information Technology And Srels Journal Of Information Management During 2016 - 2020: A Comparative Study, Laltu Aich, Ankit Das

Library Philosophy and Practice (e-journal)

The present study analyses the articles published in DESIDOC Journal of Library and Information Technology (DJLIT) and SRELS Journal of Information Management, the leading UGC-CARE enlisted Indian journals in the field of Library and Information Science (LIS) during the year 2016-2020 which explores the volume wise, issue wise pattern of distribution of articles, authorship pattern of articles, geographical distribution of major contributions and contributors, state wise distribution of articles from India, reference distribution pattern and its authorship pattern. The study reveals that DJLIT (277) has more publications than SRELS Journal (248) during the mentioned period. DJLIT has got maximum contribution …

Sisters Supporting Sisters: Photovoice & Diabetes Discourse Among Church-Based Women In New Mexico, Nina Mock Cooper

Communication ETDs

Within the expansive literature on diabetes in other disciplines, the communication lens focuses on the biomedical perspective and emphasizes doctor-patient and patient-provider relations. While there are limited studies that focus on the psychosocial aspect of diabetes morbidity, there is a gap in the existing literature across disciplines on communication about diabetes using both qualitative and participatory methods that are church-based. Because diabetes disproportionately and adversely impacts communities of color that report high levels of religious influence, there is an dire need for more effective interventions to ameliorate this chronic illness that causes high levels of morbidity and mortality.

The Sisters …

A Corpus-Based Investigation Of Phrasal Complexity In L1, L2 Phd Students, And Expert Writers In Education Field, Hani Albelihi

Language, Literacy, and Sociocultural Studies ETDs

This study compared 11 noun modifiers, adopted from Biber et al.’s (2011) index, in the writing of English native speakers (NS) and non-native speakers (NNS) graduate students in Education field and compare them with the frequencies found in published writings. Also, it investigated how the language background influences NP complexity in academic writing. The findings showed compared to the expert writers, the student writers used different amounts of phrasal modifiers in their dissertations (e.g., premodifying nouns). Then, a Chi-square test and residual analysis were run to explore how language background influences the noun phrases. Four particular noun modifiers were influenced …

Employees Expand Careers Through Data Science Master's Program, Matt Windsor

Browse All News

No abstract provided.

Investigation And Statistical Modeling Of The Mechanical Properties Of Additively Manufactured Lattices, Derek G. Spear, Anthony N. Palazotto

Faculty Publications

This paper describes the background, test methodology, and experimental results associated with the testing and analysis of quasi-static compression testing of additively manufactured open-cell lattice structures. The study aims to examine the effect of lattice topology, cell size, cell density, and surface thickness on the mechanical properties of lattice structures. Three lattice designs were chosen, the Diamond, I-WP, and Primitive Triply Periodic Minimal Surfaces (TPMSs). Uniaxial compression tests were conducted for every combination of the three lattice designs, three cell sizes, three cell densities, and three surface thicknesses. In order to perform an efficient experiment and gain the most information …

Identifying Unknown Sources Of Nitrate In Two Central Illinois Watersheds, William Andrews

Theses and Dissertations

Nitrate pollution is a major environment problem facing many agriculturally intensive areas around the world. In the midwestern USA, upstream tributaries to the Mississippi River via the Mackinaw and Illinois rivers, local excess nitrate can create problems with the safety of drinking water. In central Illinois, lakes, which are regulated and designated for use as municipal water supply, can periodically exceed EPA drinking water criteria for nitrogen. Lake Bloomington of the Money Creek watershed is the primary source of water for the City of Bloomington, whereas Evergreen Lake of the Six Mile Creek watershed serves as auxiliary supply. Both watersheds …

Impact Of Seawall Type On Mollusc Size And Diversity In South Water Caye Belize: A Case Study, Morgan O. Orand, Ginger R. Fisher

Ursidae: The Undergraduate Research Journal at the University of Northern Colorado

The size and diversity of molluscs on and in front of artificial and natural sea walls in the tropical rocky intertidal of South Water Caye, Belize were investigated with the intent of determining the suitability of artificial surfaces to replace natural seawalls. Four seawalls, three artificial and one natural, were observed over a period of eight days. Mollusc size did not change based on distance from the wall for any of the walls. However, there were some significant differences in the species and number of molluscs in front of each wall as well as on the walls themselves. Measures of …

Flow Cytometry For Identification Of Prdm1-Eyfp Transgenic Mice, Kayla M. Hufford, Olyvia D. Weaver, Nicole M. Young, Aspen E. King, Gregory K. Dekrey

Ursidae: The Undergraduate Research Journal at the University of Northern Colorado

The goal of this study was to determine if flow cytometry could be used to identify transgene carrier mice [B6.Cg-Tg(Prdm1-EYFP)1Mnz/J] by their expression of the enhanced yellow fluorescent protein (eYFP) in peripheral blood lymphocytes. In these mice, eYFP expression is under the control of the Prdm1 gene promoter. Littermates were identified as being either wild type or transgene carriers using a polymerase chain reaction (PCR) analysis of tail tissue. Peripheral blood leukocytes were isolated from each of the mice, and both the percent and mean fluorescence intensity (MFI) were determined for eYFP expression by lymphocytes. We found that blood lymphocytes …

Simulating Cambrian Climate: The Significance Of Atmospheric Co2 Concentration And Continental Position, Grace Cutting

Ursidae: The Undergraduate Research Journal at the University of Northern Colorado

The Cambrian Period began approximately 541 million years ago, and is known for the “Cambrian Explosion”, a time when multicellular life began to rapidly diversify. There is natural historic evidence (isotopes, rock formations, and fossils) that suggests the Cambrian Period experienced a warm climate. However, there is also conflicting evidence that the Cambrian climate may have undergone freezing and thawing cycles, with ice possibly present near the equator. It is critical to understand how ecosystems were able to adapt to past climate changes, especially when analyzing the impacts of modern human activity on climate. Climate model simulations were run to …

Does Gender Matter? Job Stress, Work-Life Balance, Health And Job Satisfaction Among University Teachers In India, Sandip Solanki, Meeta Mandaviya

Journal of International Women's Studies

This study investigates gender differences in the perceived level of stress of university instructors in India. An online cross-sectional survey was completed with 86 respondents comprised of 51 males and 35 females in the state of Gujarat. Results indicate that job stress on work-life balance is significantly stronger for females. Additionally, male respondents scored higher in managing anger at work compared with female respondents and reveal a stronger detachment with work. Further, male respondents have more health-related issues compared with females due to job stress and imbalance in work life, while females exhibit lower career resilience due to family characteristics …

Quality Of Work And Unpaid Reproductive Labour In The South African Labour Market, Odile Mackett

Journal of International Women's Studies

Since the 1970s and 1980s, women’s increased labour force participation has caught the attention of scholars, governments, labour unions and organisations such as the ILO. The increase in female labour force participation has accompanied the globalisation and liberalisation of product and labour markets around the world. As a result of these changing characteristics around the labour force, particularly as it relates to growing precariousness in the labour market, the ILO developed the Decent Work Agenda to set a standard with which to measure workplace vulnerability. They also listed gender equality as a cross-cutting goal of the Agenda and recognise the …

Late Embryogenesis Abundant Proteins And Mitochondrial Membranes From An Animal Extremophile: Insights Into Severe Water Stress, John Marcus Anderson

LSU Doctoral Dissertations

This dissertation focuses on two major topics germane to mechanisms by which animals tolerate extreme water stress. First, the impact of transgenic expression of late embryogenesis abundant proteins (LEA) on water stress tolerance of the fruit fly Drosophila melanogaster was investigated. The overall aim was to extend current understanding of the protective properties of LEA proteins documented with isolated cells to a desiccation-sensitive organism during exposure to drying and hyperosmotic stress. Four lines of D. melanogaster were created that expressed transgenes encoding selected LEA proteins originally identified in embryos of the extremophile Artemia franciscana. After 80% tissue water loss, …

Disability Injustice: A Latino’S Creative Autoethnographic Testimonio On The Organizational Culture Of Higher Education, Leonel A. Diaz Jr.

Organization, Information and Learning Sciences ETDs

Using creative autoethnographic testimonio (CAT), a story is told about the injustices within the learning environment and work environment of higher education toward a person with disabilities: sleep apnea, learning disabilities, negative mental health. The author explores the health difficulties of addressing sleep deprivation while attending graduate school and working full-time as a professional. With sleep apnea impacting his health, his mental health declines. As his health declines, there is an increase in discrimination, hostility, oppression, bullying, and toxic masculinity. Initially, the medical system dismisses his declining health and refuses to look further into it. Once he receives medical care …

Photovoltages In Polycrystalline Mosaic Solar Cells, Steluta A. Dinca, Eric A. Schiff

Chemistry - All Scholarship

In some thin-film solar cells the light-absorbing layer is a mosaic of crystalline grains whose boundaries run from the back to the front of the cell. We used the semiconductor modeling software Sesame to do numerical calculations of the optoelectronic properties of such cells assuming that recombination of minority photocarriers occurs primarily at the grain boundaries. The work complements analytical results for diffusion-limited recombination at grain boundaries and dislocations. We chose idealized n-CdS/p-CdTe solar cells for illustration. We find that the open-circuit voltage, V_oc, under illumination declines logarithmically with increasing ratio D/θ², where D is the …

User Engagement And Usability Of Suicide Prevention Apps: Systematic Search In App Stores And Content Analysis., Chelsey Wilks, Carol Chu, Donggun Sim, Josh Lovell, Peter Gutierrez, Thomas Joiner, Ronald Kessler, Matthew Nock

Psychology Faculty Works

Background: People with suicidal thoughts are more inclined to seek technology-delivered interventions than in-person forms of treatment, making mobile apps for suicide prevention an ideal platform for treatment delivery. This review examines apps designed for suicide prevention, with a specific focus on user engagement. Objective: This study aims to update the literature and broadly evaluate the landscape of mobile health apps for suicide prevention; examine apps with key features and primary approaches to suicide prevention; and systematically evaluate the engagement, functionality, aesthetics, and information of the apps. Methods: All apps related to suicidal thoughts and behaviors were identified in the …

Religious Leadership: Agents Of Social Change, Jacqueline Carter

Dissertations

Historically, churches in the United States acquired respect as institutions that cultivated spiritual maturity and advocated for social equality in Black communities. Religious leaders represent the voice of reason for communities facing complex social problems, then and today. How educational attainment influences religious leaders’ social action strategies and decisions to engage or disengage in social activism is under explored. Additionally, it is unclear what strategies religious leaders use for social advocacy in their communities. Using andragogy and social cognitive theory as theoretical frameworks, the purpose of this phenomenological study was to explore the educational experiences of religious leaders to understand …

Academic And Demographic Patterns Of Students Placed In Early Algebra I Acceleration, Jill Smith

Dissertations

In the United States, there had been a push for Algebra for All in the early 1990’s in an effort to increase performance on international assessments and provide equity for low-income students and students of color. As the number of students in eighth grade Algebra I increased, a small number of students enrolled in seventh grade Algebra I also increased. The purpose of this quantitative study is to identify and evaluate demographic and academic patterns of students placed in this early acceleration at the middle school level looking at the continuation of acceleration, higher achievement, and an increase in the …

Performance Evaluation Of A Prestressed Belitic Calcium Sulfoaluminate Cement (Bcsa) Concrete Bridge Girder, Nick Markosian, Raed Tawadrous, Mohammad Mastali, Robert J. Thomas, Marc Maguire

Durham School of Architectural Engineering and Construction: Faculty Publications

Belitic calcium sulfoaluminate (BCSA) cement is a sustainable alternative to Portland cement that offers rapid setting characteristics that could accelerate throughput in precast concrete operations. BCSA cements have lower carbon footprint, embodied energy, and natural resource consumption than Portland cement. However, these benefits are not often utilized in structural members due to lack of specifications and perceived logistical challenges. This paper evaluates the performance of a full-scale precast, prestressed voided deck slab bridge girder made with BCSA cement concrete. The rapid-set properties of BCSA cement allowed the initial concrete compressive strength to reach the required 4300 psi release strength at …

Using Silicon-Vacancy Centers In Diamond To Probe The Full Strain Tensor, Kelsey M. Bates, Matthew W. Day, Christopher L. Smallwood, Rachel C. Owen, Tim Schröder, Edward Bielejec, Ronald Ulbricht, Steven T. Cundiff

Faculty Research, Scholarly, and Creative Activity

An ensemble of silicon vacancy (SiV−) centers in diamond is probed using two-pulse correlation spectroscopy and multidimensional coherent spectroscopy. Two main distinct families of SiV− centers are identified, and these families are paired with two orientation groups by comparing spectra from different linear polarizations of the incident laser. By tracking the peak centers in the measured spectra, the full diamond strain tensor is calculated local to the laser spot. Measurements are made at multiple points on the sample surface, and variations in the strain tensor are observed.

U.S. Medical School Admissions And Enrollment Practices: Status Of Lgbtq Inclusivity, Reid M. Gamble, Andrew M. Pregnall, Angie Deng, Jesse M. Ehrenfeld, Jan Talley

Faculty and Staff Publications

Context:

The failure to collect information on lesbian, gay, bisexual, transgender, and queer (LGBTQ) identity in healthcare and medical education is a part of a systemic problem that limits academic medical institutions' ability to address LGBTQ health disparities.

Objectives:

To determine whether accurate sexual and gender minority (SGM) demographic data is being consistently collected for all US medical schools during admissions and enrollment, and whether differences exist between collection practices at osteopathic and allopathic schools.

Methods:

Secure, confidential electronic were sent via email in July 2019 to 180 osteopathic (n=42) and allopathic (n=138) medical schools identified through the American Association …

Computer Adaptive Testing For The Assessment Of Anomia Severity, Gerasimos Fergadiotis, Marianne Casilio, William D. Hula, Alexander Swiderski

Speech and Hearing Sciences Faculty Publications and Presentations

Anomia assessment is a fundamental component of clinical practice and research inquiries involving individuals with aphasia, and confrontation naming tasks are among the most commonly used tools for quantifying anomia severity. While currently available confrontation naming tests possess many ideal properties, they are ultimately limited by the overarching psychometric framework they were developed within. Here, we discuss the challenges inherent to confrontation naming tests and present a modern alternative to test development called item response theory (IRT). Key concepts of IRT approaches are reviewed in relation to their relevance to aphasiology, highlighting the ability of IRT to create flexible and …

The Rise Of Creative Class In Library: A Chinese Perspective, Lingdan Song

Proceedings of the IATUL Conferences

Library has responded to the rapid change of social development by expanding its role from a physical place of collections to a space supporting the creative process. Florida proposed 3T (technology, talent and tolerance) to be key factors triggering creativity for a region. Based on this theory, this paper elaborates on the academic library as “creative center” who offers attractions for the patrons by exploring specific examples in China, concluding the Chinese library advancing innovation from these three dimensions. Automatic Mapping System between DDC and CLC, Academic Resource Map, the people-oriented atmosphere and activity fostering creativity, like the maker spaces, …

Evaluation And Analysis Of Open Access Electronic Resources In Higher Education Libraries In Portugal, Jose Carlos De Carvalho, Maria Joao Amante, Maria Angeles Zulueta

Proceedings of the IATUL Conferences

In this work, it is given public knowledge of a model that was built along the research carried out, with a view to evaluate the information resources in Open Access (OA) and present the results obtained by its application on a comparative study at the level of Higher Education Libraries (universities and polytechnics, public and private) in Portugal, more exactly concerning the Online Public Access Catalogs (OPAC) and Institutional Repositories (IR). For the construction of this model and its application to the Higher Education Libraries in Portugal, 3 dimensions with 9 indicators each were designed, in a total of 27, …

International Visibility Of Thesis And Dissertations From Ulisboa Through The Institutional Repositories: Gateway For Open Science, Tatiana Sanches, Luiza Baptista Melo, Silvia Costa Lopes, Susanna Oliveira Henriques

Proceedings of the IATUL Conferences

Institutional repositories of universities are initiatives that integrate the concept of Open Science, enhancing the free circulation of academic and scientific production. The current University of Lisbon (ULisboa) results from the fusion of the former University of Lisbon and Technical University of Lisbon, in 2013. Currently, ULisboa comprises 18 schools. Since the fusion, University of Lisbon still has two independent institutional repositories based on DSpace – the Repositório.UL and the UTL Repository. Focused on the collection of theses and dissertations, the aim of the following study is to look at the scientific production of ULisboa and analyse the international visibility …

Library And Faculty Partnering To Increase Open Access Publishing Among Researchers, Cristina Sousa Lopes, Teresa Oliveira Ramos, Palmira Seixas, Luis Miguel Costa, Ana Freitas

Proceedings of the IATUL Conferences

This paper aims to describe the collaboration of FEUP’s Library with faculty in the course unit “Publishing and Scientific Writing” for third-cycle students. It contributed to U.Porto Journal of Engineering, a new open-access journal of the Faculty of Engineering, indexed in DOAJ, OpenAIRE and Scopus. This study also reports the course unit’s lifecycle from its design, development and implementation as a face-to-face format until its present evolution to an online offer. Throughout the last decades, academic libraries have reinforced their educational role as active partners in teaching, learning and research activities within their institutions. In this course, FEUP’s Library is …

Comparative Study Of Leachate Characterization: Implication For Sustainable Environmental Management, Osakpolor Marvellous Omorogieva, Victory Itua Igberase

School of Earth, Environmental, & Marine Sciences Faculty Publications

Understanding the sources of environmental stressors, the role of geology, climate and technology would provide a guide to solving the problems posed by such stressor. The study examine the sources of wastes in Ikhueniro open dumpsite located in Benin city, Nigeria and characterize the leachate emanating from it. This will assist in adequate design of managerial scheme to tackle the menace posed by it while putting into consideration the role of geology, climate and technology. The key objectives are to carry out field study, characterize wastes in the dumpsite and collect raw leachate emanating from the wastes heap in order …

Water Wave Scattering By Impermeable And Perforated Plates, Hui Liang, Siming Zheng, Yanlin Shao, Kie Hian Chua, Yoo Sang Choo, Deborah Greaves

School of Engineering, Computing and Mathematics

No abstract provided.

Creation Of Hand Sensors And Orthotics To Capture And Replicate Human Movement And Forces, Edward Frank Austin Jr.

LSU Doctoral Dissertations

Paralysis is a debilitating condition affecting as many as 5.4 million in the United States. Upper extremity paralysis/paresis is the most debilitating form of paralysis due to the robust kinematic patterns in our hands and wrist. These forces and movements available at our hand allow us to manipulate objects as small as a sewing needle yet still lift multiple grocery bags at one time on a daily basis. Inability to use the upper extremities usually necessitates 24-hour assistance. Therefore, it is imperative to build devices that are biomimetic to assist those with upper extremity paralysis. To accomplish this feat, this …