Digital Commons Network^™

The Kinematic Relationship Between Plücker Coordinates,  Moments Of Ruled Surfaces, And Real Quaternion Algebra, Selahatti̇n Aslan

Turkish Journal of Mathematics

This paper introduces a new kinematic method for generating ruled surfaces in Euclidean 3-space. We demonstrate that the Plücker coordinate method for straight lines can be extended to ruled surfaces. We prove that the moment of a ruled surface is a unique curve, which is independent of the chosen base curve. Moreover, we introduce a novel and distinctive base curve that is defined as the set of points on the rulings of the ruled surface such that these points are closest to the origin. Thus, we prove that each ruled surface can be generated using a real quaternion and a …

Pgl Orbits On Products Of Flag Varieties, Izzet Coşkun, Abuzer Gündüz

Turkish Journal of Mathematics

In this paper, we study the existence of a dense orbit for the diagonal [[EQUATION]] action on self-products of partial flag varieties. We determine when there exists a dense orbit for flag varieties of the form [[EQUATION]] when [[EQUATION]] or when [[EQUATION]] and [[EQUATION]] for some [[EQUATION]]. We also show that certain infinite families of products do not have a dense orbit.

On Statistical Multiplicative Uniform Convergence, Abdullah Aydin, Recep Türk, İrem Güler

Turkish Journal of Mathematics

This paper introduces a new concept of convergence, called statistical multiplicative uniform convergence, on Riesz algebras. This concept unifies three fundamental convergence types: statistical convergence, multiplicative convergence, and relatively uniform convergence. After establishing basic properties such as uniqueness, linearity, and compatibility with algebraic and lattice operations, we investigate its relationships with order convergence, statistical multiplicative order convergence, and relatively uniform convergence. In particular, we prove that statistical multiplica tive uniform convergence coincides with statistical multiplicative order convergence when an order unit exists. Moreover, for monotone sequences in Archimedean semiprime f-algebras, statistical multiplicative uniform convergence implies order convergence. We also study …

Notes On The Geometry Of Electromagnetic Fields And Maxwell’S Equations Along A Nonnull Curves In Nonflat-3d Space Forms MQ3(C), Fatma Almaz, Cumali̇ Eki̇ci̇

Turkish Journal of Mathematics

In this paper, the directional derivatives in accordance with the orthonormal frame {T^→, N^→, B^→} are defined in M_q³(c), the extended Serret-Frenet relations by using Frenet formulas are expressed. Furthermore, we express the bending elastic energy function for the same particle in M_q³(c) according to curve γ(s, ξ, η) and we tried to interpret it from a geometric perspective of the energy for unit vector fields. Also, Maxwell’s equations are expressed for the electric and magnetic field vectors …

Analysis And Categorization Of Second-Order Linear Partial Dynamic Equations On Time Scales, Svetlin G. Georgiev, Jervin Zen Lobo, Sanket Tikare

Turkish Journal of Mathematics

In this paper, we obtain the canonical form of second-order linear partial dynamic equations in two independent variables on time scales, together with the identity for the characteristic quadratic form. This is then used to classify these equations as hyperbolic, elliptic, or parabolic. We deduce the characteristic equations in each case, determine their roots, and provide the corresponding characteristic curves. In one case, we derive the generalized Beltrami equations on time scales. Suitable examples involving equations of interest are explored, and the developed theory is illustrated through these examples.

Numerical Simulation Of Centrifugal Pump Performance Under Impeller Blade And Suction Diameter Variations, Gunawan Budi Santoso, Susanto -, Akhmad Nuriyanis, Anang Budhi Nugroho, Rizka Noor Miftakhul Ulum, Suyono -

Journal of Mechanical Engineering Science and Technology (JMEST)

The objective of this study is to model variations in pump geometry to obtain optimal performance under the effects of cavitation. The resulting geometric variation models were then simulated using ANSYS Fluent software. The first geometric variation model used a standard 5-blade impeller with suction pipe diameter variations of 2, 2 ½, 2 ¾, 3, 3 ¼, 3 ½, and 4 inches. The second geometric variation model for simulation used a standard 3-inch suction pipe with impeller blade variations of 3, 4, 5, 6, 7, 8, and 9. The simulation results indicated that the number of blades without changes in …

Why Do Location-Based Preference Effects Occur Within Decision Making? Evidence From The Magician’S Force, Gustav Kuhn, Rachael Bulford-Forbes, Liliana Schirru, Meda Valecke, Geoff G. Cole

School of Psychology

Preference research has shown that humans have a bias towards items located in the middle of the visual field and a number of theories have been suggested to explain the phenomenon. The conjuring trick known as the placement force not only exploits this central bias but also shows that the preference is subtly biased to the right of centre. We used the force, together with eye tracking, to test the different theories. In a single experiment, four face-down playing cards were presented on a table in a horizontal row. Participants (n = 137) were asked to select one by pushing …

July 17, 2026 Ereporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

The Lived Experiences Of The Flint Water Crisis And Its Psychological Effects, Joe W. Glenn

Walden Dissertations and Doctoral Studies

The Flint, Michigan, water crisis of 2014, with lead contamination of drinking water, adversely affected predominantly Black, socioeconomically disadvantaged residents. However, no research has investigated residents’ experiences, especially their trust in local and state government leaders. The purpose of this study was to explore the lived experiences of the Flint water crisis and its psychological effects. Rawls’s theory of justice provided the framework for the study. Three research questions guided this qualitative descriptive phenomenological study. Information from eight Flint residents was collected through semi-structured interviews. Data analysis followed Giorgi’s descriptive phenomenological steps. Five strong themes emerged: understanding individual perceptions, views …

Beyond Immersion: A Stage-Based Framework For Cross-Modal Immersive Technologies In Medical Education, Christopher M. Ahmad, Ambrose Loc T. Ngo, Rae-Anne Kastle, Lance Rufino, Shantanu Amin, Brent Evan, Melissa Zolnierz

Student Publications

Background

Immersive technologies such as virtual reality (VR), augmented reality (AR), and point-of-care ultrasound are increasingly used in medical education, yet most studies evaluate these tools in isolation. As a result, the relationships among immersive experience, cognitive workload, technical performance, and downstream diagnostic assessment remain poorly understood. This exploratory secondary analysis applied the Immersive Learning Engagement-Performance (ILEP) conceptual framework to a staged multimodal dataset to examine whether selected immersive psychological variables were associated with downstream Extension Proficiency Composite and exploratory distal diagnostic performance.

Methods

This theory-informed secondary analysis used participant-level data from a prospective staged protocol involving VR, AR, and …

Impact Of Asphalt Binder Chemical Composition On The Performance Of Asphalt Mixture., Sagar Parajuli

LSU Master's Theses

Asphalt binder is composed of four chemical fractions, namely, saturates, aromatics, resins, and asphaltenes (SARA). Binders with the same performance grade (PG) can exhibit different chemical compositions due to variability in crude oil sources and refining processes. The objective of this study was to evaluate how such chemical variations influence the mechanical performance of asphalt mixtures at high, intermediate and low temperatures.

Eighteen 12.5-mm nominal Maximum Aggregate Size mixtures were designed using two aggregate types (limestone and gravel), and three binder grades (PG 67-22, PG 70-22m and PG 76-22m), each from three different sources with varying chemical fractions. A suite …

Seasonal Molecular And Secretory Responses Of Equine Ovarian Follicles To Estradiol And Sulpiride Treatment, Madalyn Autin

LSU Master's Theses

Mares entering seasonal anovulation during winter present a significant challenge for equine breeding programs. Treatment with estradiol cypionate (ECP) and sulpiride in a long-acting vehicle can advance the first ovulation of the season; however, the molecular and secretory mechanisms underlying this response remain unclear. This study compared follicle wall gene expression and endocrine factors (from blood plasma and follicular fluid) among seasonally anovulatory mares responding to ECP-sulpiride (RESP; n = 15, treated with 50 mg ECP and 3 g sulpiride), mares undergoing natural spring transition (ST; n = 16, vehicle-treated only), and mares cycling during the summer ovulatory season (SOV; …

Support The Icc As A Vital Court Of Last Resort For Victims Of Grave International Crimes, Jocelyn Getgen Kestenbaum, Gabor Rona

Online Publications

This public statement, issued on International Justice Day (July 17, 2026), affirms support for the International Criminal Court (ICC) as an independent judicial institution and a court of last resort for victims of genocide, crimes against humanity, war crimes, and the crime of aggression. Signed by more than 100 organizations and individuals, including legal scholars, practitioners, human rights advocates, and civil society organizations, the statement expresses concern over efforts to undermine the ICC's independence and functioning. It calls on the United States to reaffirm its longstanding commitment to the rule of law, judicial independence, and international accountability, emphasizing the importance …

Newton Bryan V. City Of Philadelphia

2026 Decisions

USDC for the Eastern District of Pennsylvania

Usa V. Alan Dorsey

2026 Decisions

USDC for the Middle District of Pennsylvania

In Re: Boy Scouts Of America And Delaware Bsa Llc

2026 Decisions

USDC for the District of Delaware

In Re: City Of Chester Pennsylvania

2026 Decisions

USDC for the Eastern District of Pennsylvania

Felishatay Alvarado V. City Of Philadelphia

2026 Decisions

USDC for the Eastern District of Pennsylvania

Association Of New Jersey Rifle And Pistol Clubs I V. Attorney General New Jersey

2026 Decisions

USDC for the District of New Jersey

A Modest Proposal For Discourse Analysis In Nonbinary Communities: Method And Case Study, Nikoli Michael Daigneault

Electronic Theses and Dissertations

While linguists have long used discourse analysis to study language variation in binary and nonnormative gender groups, nonbinary people have often been excluded from analyses or treated without a nonbinary-informed framework. Nevertheless, nonbinary language use can provide key insights into the relationship between gender and language. In this thesis, I propose Nonbinary Discourse Analysis, a set of recommendations and best practices for conducting discourse analysis in nonbinary communities. These methods are informed by previous empirical research on nonnormative gender identities and theoretical work in trans linguistics (Zimman, 2020) and trans epistemologies (Nordmarken, 2019; Raclaw, in press). To demonstrate the methodology, …

Mechanistic Determination Of Host Environmental Impacts On Shigella Virulence, Nicholas E. Dickenson

Funded Research Records

No abstract provided.

Optimising Professional Support For Doctors Who Experience Work Performance Issues: A Realist Evaluation, Nicola Brennan, Ellie Reynolds, Tristan Price, Geoff Wong, Jennifer Cleland, Helen Lloyd, Lyndsey Withers, Thomas Gale

Peninsula Medical School

Background The optimal performance of doctors is critical to delivering high-quality, safe healthcare. However, 6–12% of doctors may experience challenges that impact their work performance. In many countries, including the UK, there is variation in the practice and quality of professional support services between different types of organisations. The aims of our study were (1) to identify why, how, in what contexts and for whom professional support works, (2) to develop a guide for healthcare organisations to use to optimise professional support.Methods We carried out a realist evaluation consistent with Realist And Meta-narrative Evidence Syntheses: Evolving Standards (RAMESES) II standards. …

Injuries In Children Undergoing Subspecialty Abuse Evaluations Because Of Intimate Partner Violence., M Katherine Henry, Gunjan Tiyyagura, Joanne N. Wood, Jan Leonard, Kristine A. Campbell, Daniel M. Lindberg, Angela N. Bachim, Farah W. Brink, Lori D. Frasier, Nancy S. Harper, Claire Hickey, Natalie Laub, John D. Melville, Hannah Sahud, Philip V. Scribano

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND AND OBJECTIVES: Intimate partner violence (IPV) and child physical abuse often co-occur, but the frequency and risk factors for abusive injuries in IPV-exposed children remain unknown. Our objectives were to (1) determine frequency of skeletal surveys (SSs) and neuroimaging use because of IPV and their diagnostic value in children aged less than 24 months evaluated by a child abuse pediatrics specialist (CAP) and (2) identify factors associated with performance of and findings on SS and neuroimaging.

METHODS: We conducted a retrospective study of children aged less than 24 months undergoing CAP consultations because of IPV exposure from February 2021 …

Transcriptomic And Genomic Insights Into Nutrient Stress Responses And Subgenome Evolution In Chenopodium, Ashley Kathleen Marcheschi

Theses and Dissertations

Chenopodium is a diverse genus of nutritionally and ecologically important species in the Amaranthaceae family. This thesis investigates two outstanding questions in the genus: how Chenopodium quinoa responds transcriptionally to nutrient deficiency and how Australian Chenopodium species are related through their subgenomic ancestry and evolutionary history. First, we characterized transcriptomic responses of C. quinoa to deficiencies of twelve essential macro- and micronutrients across leaf and root tissues using RNA sequencing. Leaves showed the strongest responses under nitrogen, potassium, magnesium, and zinc deficiency, while roots responded more evenly across conditions. Recurring responses included suppression of photosynthesis, remodeling of translational machinery, reactive …

Association Between Occupational Stress, Sleep Quality, And Premature Ejaculation Among Indonesian Information Technology Workers, Muhammad Faisal Ratman, Suryo Wibowo, Muhammad Ilyas, Retno Asti Werdhani, Dewi Yunia Fitriani

Occupational and Environmental Medicine Journal of Indonesia

Introduction Premature ejaculation (PE) is a common sexual dysfunction that significantly impacts quality of life. Occupational stress and poor sleep quality are hypothesized as risk factors, particularly among Information and Technology (IT) workers who experience unique occupational stressors. This study aimed to evaluate the proportion of PE, examine the influence of occupational stress and sleep quality on PE, and determine whether sleep quality mediates the relationship between occupational stress and PE among Indonesian IT workers.

Methods This cross-sectional study involved 89 married male IT workers who completed online questionnaires, including the Premature Ejaculation Diagnostic Tool (PEDT), Perceived Occupational Stress (POS) …

Kinds Of Evidence Cited By Councilors In Municipal Council Sessions: The Case Of Santa Fe, Cebu, Philippines, Junald D. Ango

Journal of Public Affairs and Development

This paper explores the practice of evidence-based policymaking (EBPM) in the municipal council of Santa Fe, Cebu, Philippines. Data for this study is based on a content analysis of the minutes of council sessions and committee meetings from July 2022 to August 2024. The use of evidence in policymaking has caught on among policymakers in the Philippines, at both the national and local levels. However, few studies have examined policymakers' use of evidence in municipal governments, especially those in smaller, less urbanized towns. In the case of the Municipality of Santa Fe, at least 13 kinds of evidence were cited …

Depro: Understanding The Role Of Llms In Debugging Competitive Programming Code, Nabiha Parvez, Md Tanvin Sarkar Pallab, Mia Mohammad Imran, Tarannum Shaila Zaman

Computer Science Faculty Research & Creative Works

Debugging consumes a substantial portion of the software development lifecycle, yet researchers do not yet understand well the effectiveness of Large Language Models (LLMs) in this task. Competitive programming offers a rich benchmark for such evaluation, given its diverse problem domains and strict efficiency requirements. We present an empirical study of LLM-based debugging on competitive programming problems and introduce DePro, a test-case-driven approach that assists programmers by correcting existing code rather than generating new solutions. DePro combines brute-force reference generation, stress testing, and iterative LLM-guided refinement to efficiently identify and resolve errors. Experiments on 13 faulty user submissions from Codeforces …

Interstitial Fluid N-Glycans Serve As A Proxy For Serum Biomarker Discovery In A Pilot Study, Radka Saldova, Talus K. Gaymore, Caitriona Walsh, Eder Zavala, Paula M. Mendes

Student Papers, Posters & Projects

Protein glycosylation is the most prevalent post-translational modification and is known to undergo profound alterations in disease. While serum N-glycosylation has been extensively studied, interstitial fluid is gaining prominence as a minimally invasive biomarker source, underscored by the widespread clinical adoption of wearable glucose monitors in diabetic patients. However, the glycomic landscape of interstitial fluid remains largely unexplored. Here, we have performed a comparative analysis of the N-glycome from interstitial fluid and matched plasma from five healthy volunteers using liquid chromatography, mass spectrometry and exoglycosidase digestions. Strikingly, the interstitial fluid N-glycome closely shows overlapping profiles with the plasma of each …

Fort Hays State University Tiger Weekly, July 17, 2026, University Relations

Tiger Weekly Newsletters

No abstract provided.

Infographic: Reasons For Long-Term Student Absence, Dominique Russell

Teacher infographics

As a school, understanding the reasons for student absenteeism in your context is key to providing targeted support. Drawing on data from PISA 2022, new OECD research shows school attendance problems are widespread and increasing. In this infographic, we share the reasons students missed 3 or more consecutive months of schooling.