Digital Commons Network^™

Birck Nanotechnology Center Technical Overview, Purdue University Office Of Research, Ron Reger

University General Facility Boilerplate Descriptions

Overview of the Birck Nanotechnology Center infrastructure including the Scifres Nanofabrication Laboratory and a suite of specialized laboratory facilities.

Tacscope: A Miniaturized Vision-Based Tactile Sensor For Surgical Applications, Md Rakibul Islam Prince, Sheeraz Athar, Pokuang Zhou, Yu She

School of Industrial Engineering Faculty Publications

The lack of tactile feedback in robot-assisted minimally invasive surgery (RMIS) limits surgeons’ ability to palpate tissues, a critical technique for locating abnormalities such as tumors. To address this challenge, we introduce TacScope, a novel, vision-based tactile sensor leveraging the magnification properties of a spherical-surface elastomer to provide tactile feedback for advanced clinical applications. TacScope features a robust, low-cost, and easyly fabricate design, enabling seamless integration into surgical robotic setups. It reconstructs high-resolution 3D geometry from variations in particle-density distribution across its elastomer surface, requiring only a single image for calibration. The curved elastomer membrane alters particle-density distribution under …

Mortal Writing: Toward Braver Concepts Of “Better Writers,” Peerness, And Nationality, Enrique Paz, Annalee Roustio

The Writing Center Journal

Reflecting on experiences with two Afghan students writing in response to events following the U.S. withdrawal from Afghanistan in 2021, this essay challenges traditional writing center practices in response to the evolving and urgent writing needs of diverse (international) student populations. Focusing on the intersectional identities of student writers and the geopolitical realities they face, we develop further the call to transform writing centers into “brave spaces.” Deploying this framework of bravery, we call for a reevaluation of the concept of “better writers,” of empathy constructed primarily through peerness, and of the current conceptualization of nationality in writing center scholarship. …

Cerebellar Dysfunction In Glaucoma Patients, Anisha Kasi, Ji Won Bang, Vivek Trivedi, Jeannie Au, Ian Conner, Gadi Wollstein, Joel Schuman, Rakie Cham, Kevin Chan

Wills Eye Hospital Papers

Glaucoma patients often have higher injurious fall rates compared to healthy older adults. However, little is known about the underlying neural mechanisms. Recent evidence shows cerebral changes beyond the visual pathway of glaucoma patients, yet it remains unclear whether the cerebellum, which plays an important role in balance and motor control, is involved in glaucoma. In this study, we sought to investigate cerebellar functional connectivity changes in glaucoma by comparing 32 glaucoma subjects and 10 age-matched healthy control subjects who underwent resting-state functional magnetic resonance imaging at 3 Tesla with eyes closed. After conducting both regions-of-interest and seed-to-voxel analyses, we …

Spartan Daily, October 15, 2025, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily, 2025

Volume 165, Issue 23

Conversion Of Failed Anatomic Total Shoulder Arthroplasty To Reverse Shoulder Arthroplasty Yields Similar Pain And Functional Outcomes To Primary Reverse Shoulder Arthroplasty But Has A Higher Baseplate Failure Rate: A Matched Cohort Study., Kevin A Hao, Trevor G Simcox, Keegan M Hones, Jonathan O Wright, Thomas W Wright, Tyler Lamonica, Bradley S Schoch, Joseph J King

Faculty, Staff and Student Publications

Background: To investigate whether patients who initially underwent anatomic total shoulder arthroplasty (aTSA) for glenohumeral osteoarthritis and were subsequently revised to reverse TSA (rTSA) due to rotator cuff failure or glenoid loosening ultimately attained a similar clinical outcome compared with those who underwent primary rTSA and identify predictors of poor outcomes in the former population.

Methods: We did a single-center retrospective review of 63 shoulders who underwent revision rTSA after primary aTSA that failed due to glenoid component loosening (n = 32), rotator cuff failure (n = 24), or recurrent instability (n = 7). Pain and functional outcomes at minimum …

Correction: Román-Ríos Et Al., Gabriel Román-Ríos, Gabriel Rosario-Ortiz, Marcos J Ramos-Benitez, Ricardo A Mosquera, Wilfredo De Jesús-Rojas

Faculty, Staff and Student Publications

Figure Legend [...].

Structural And Biological Properties Of Chitosan/Copper Polymetallic Complexes Synthesized From Apis Mellifera-Derved Chitosan, Dilnoza Sohibovna Isomitdinova, Gulnora Akmalovna Ikhtiyarova, Nazira Madusmanovna Kuchkarbayeva, Nafisa Akhrorovna Ergasheva

Technical science and innovation

In this study, a chitosan/copper (Ch/Cu²⁺) polymetallic complex was synthesized from chitosan obtained by the cryogenic method from Apis mellifera bees. The structural and physicochemical properties of the complex were investigated using FTIR, UV-Vis, XRD, TGA, and DLS analyses. FTIR spectra showed shifts in absorption bands at 1400-1339 cm⁻¹ and 1640-1550 cm⁻¹, confirming the coordination of Cu²⁺ ions with amino and hydroxyl groups. UV-Vis spectra revealed absorption peaks in the 410-540 nm range, while XRD analysis indicated new crystalline peaks at 2θ = 24°, 27°, and 37°. Thermal analysis demonstrated high thermal stability of the complex, and DLS confirmed a …

Finessing A Medical Expert’S Qualifications: From Professional Communities’ Boundaries To Personal Character, Patrick Garon-Sayegh

Osgoode Hall Law Journal

This article examines the kinds of arguments that can be made in debates regarding whether or not an expert is properly qualified to critique the work or opinions of another expert. Since these debates routinely occur in both legal and political arenas, a more fine-tuned sense of their argumentative dynamics can be fruitful for reasoning through them. This article is built around the analysis of a decision which concerned the admissibility of a physician’s testimony on the medical standard of care in a malpractice case. A detailed parsing of the arguments in that decision lays the groundwork for a theoretical …

Libel Via Language Models, Peter Wills

Osgoode Hall Law Journal

This article explains how developers and users of large language models (LMs) may be treated by English and Canadian libel law. LMs could be economically significant, and the liability environment they exist in will affect where they are developed, who accumulates wealth from their development, and who bears the burdens of any negative consequences of their development. Understanding the existing liability environment allows both developers and policy makers to make informed decisions—about which jurisdiction to offer services and what to prioritise, for the former, and about whether the existing law serves desired policy ends, for the latter. LMs also raise …

Doing Away With Racial Profiling In Policing Without Doing Away With The Rule Of Law, François Tanguay-Renaud

Osgoode Hall Law Journal

Since the turn of the millennium, Canadian appellate courts have been investing increasingly systematic efforts in demystifying and curtailing racial profiling in policing. These judicial efforts have so far been focused on the application of the legal criteria for arrest and detention as well as their regulation under section 9 of the Canadian Charter of Rights and Freedoms. In this article, I contend that this unidimensional approach is unsound and outline a corrective path forward. First, I argue that the prevailing judicial understanding of what racial profiling is and how it affects the lawfulness of arrests and detentions has the …

“I Just Need Another Set Of Eyes”: Understanding Students’ Idea Of The Writing Center, Isabelle M. Lundin, Neal Lerner

The Writing Center Journal

In this article, we describe writing center clients’ “idea” of the writing center based on interviews with 26 writing center users and qualitative coding of interview transcripts. Participants’ constructs of the writing center provide a lens to better understand how they perceive writing as an activity, the “writing culture” of the institution, the role of the writing center in their writing processes, and, ultimately, if they see writing centers in the way we would expect them to. The tensions we derived from our data are (1) between who and what tutors are and offer: discipline-specific expertise (including the disciplines of …

Structure And Principle Of Operation Of The Vibrational Pressing And Dehydration Unit For Semi-Soft Cheese, Qobiljon Akmal Ugl Muxiddinov, Shakhnoza Abduvaxitovna Sultanova, Azamat Bakir Ugli Usenov

Technical science and innovation

This paper investigates the structural design and operational principles of a vibrational pressing and dehydration unit developed for semi – soft cheese production. The equipment is engineered to optimize whey expulsion and moisture uniformity in curd blocks by combining mechanical pressure with controlled vibration. The unit comprises a stainless – steel vibrating chamber, drainage plates with micro – perforations, and an adjustable frequency–amplitude control system. Vibrations in the range of 20–60 Hz are applied during pressing, promoting more efficient capillary flow and enhancing the separation of whey from curd particles. The process ensures uniform density and texture across the cheese …

Exploring The World Of Medical Exoskeleton Robots: A Classification Guide, Javlonbek Rakhmatillaev, Vytautas Bučinskas

Technical science and innovation

This article describes the classification of exoskeletons. This classification is based on the use of exoskeletons in the medical field, shape, power source, generation, parts related to the human body, structural material, and control forms based on sensor and actuator devices. In addition, examples of each category are given. The main goal is to comprehensively evaluate medical exoskeletons, pay special attention to their functions and goals, conduct scientific research, and further develop these devices. As a result, a completely new type of classification of medical exoskeletons was developed. The developed new type of classification serves as an important guide in …

Measures To Improve The Structure And Operating Principle Of Perovsite Light-Emitting Devices, Latofat Utkir Qizi Shuhratova, Rustam Rashidovich Kabulov, Farrux Anvar Ugli Akbarov, Anvar Akbarovich Alimov

Technical science and innovation

Since the discovery of the unique properties of perovskite materials, these materials have been used as active layers in various optoelectronic devices. In particular, perovskite-based light-emitting diodes (LEDs) have attracted the attention of many researchers as a highly efficient and versatile technology for lighting and display devices. Perovskite-based LEDs allow for tunable light emission and can be manufactured at low cost and with flexible fabrication technology. These advantages make them suitable for use in devices ranging from modern displays to wearable electronics. Despite their potential, solving problems such as material stability and industrial scale is one of the current challenges …

Methodology For Creating An Intelligent Mechatron Module Based On A Synergistic Approach, Nurbek Rustamovich Matyokubov, Temurbek Omonboyevich Rakhimov

Technical science and innovation

This article is devoted to the methodology of creating an intelligent mechatron module based on a synergistic approach. Creating a multi-coordinate intelligent mechatron module and expanding the functional capabilities of the controlled object based on them, allows to optimize the dynamic characteristics. Also, the methodology for creating an intelligent mechatronic module based on a synergistic approach allows for the integration of electrical, magnetic, and mechanical components into a single circuit, the integration of technical parameter modification, and the integration of processing functions into a single information-measuring module. In addition, the article proposes a Eurorhythm scheme for expressing how …

Racial Profiling And The Rule Of Law: A Reply, Terry Skolnik, Jeanne Mayrand-Thibert, Fernando Belton

Osgoode Hall Law Journal

THIS VOLUME OF THE OSGOODE HALL LAW JOURNAL (OHLJ) contains two articles—and two replies—that explore racial profiling and the law. This academic exchange comes at a crucial moment. In Attorney General of Québec v Luamba (“Luamba”), the Court of Appeal of Quebec affirmed that the statutory police power to conduct roving traffic stops is unconstitutional because it results in arbitrary detentions and unconstitutional discrimination, neither of which were justifiable in a free and democratic society.

Twenty Minutes Of Corsi Block Tapping Task Training Does Not Improve Mental Rotation In Adults With Stroke, Sarah A. Kettlety, Giuliet L. Kibler, Andrew Hooyman, Christina K. Holl, Sydney Y. Schaefer, Kristan A. Leech

Physical Therapy Faculty Articles and Research

Background: Visuospatial function is commonly impaired post-stroke and is associated with motor learning and recovery. A single, twenty-minute Corsi Block Tapping Task (CBTT) training session improved visuospatial function in young neurotypical adults; however, it is unclear whether this training would improve visuospatial function in adults with stroke.

Objective: To understand if a single, twenty-minute CBTT training session improved visuospatial function in adults with stroke compared to a no-training control group of adults with stroke.

Methods: Participants post-stroke were assigned to one of two groups. The training group completed twenty minutes of computerized CBTT training. The control group completed a survey …

Differential Bk Channel Potentiation By Vanzacaftor Enantiomers Enables Therapy For Modulator-Ineligible People With Cystic Fibrosis, Nathalie Baumlin, Sumedha Gunewardena, Scott H Randell, Frank T Horrigan, Matthias Salathe

Faculty, Staff and Students Publications

No abstract provided.

Multi-Level Salmon Governance And Adaptation To Institutional Change In Indigenous Fishing Communities In Kamchatka, Russia, Tatiana Degai, Maria Monakhova, Andrey Petrov, Victoria N. Sharakhmatova, Yulia Vasilieva

Faculty Publications

Discussions around salmon governance and management systems in the Pacific remain to be the source of debate and tension between recreational fishers, commercial fishing industry, Indigenous communities, government agencies, as well as the scientists (Chalifour et al., 2022; Day, 2023; Reid et al., 2022). While decades were spent on developing the “correct” salmon governance regimes, these systems still fail to respond to the needs of salmon-dependent communities and salmon populations (Council of Athabascan Tribal Governments, n.d.; Connors, 2023). In multiple contexts multi-level governance is enforced top-down and is imposed with the pretext of achieving “better” management of resources, yet increasing …

Clark Tailings Consolidated Waste Management Area (Ctcwma) Site Investigation Draft Data Summary Report 2024 Surface Water, Groundwater, And Soil Characterization, Woodard & Curran

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Preoperative Brain Mapping Predicts Language Outcomes After Eloquent Tumor Resection, Matthew T Muir, Kyle Noll, Sarah Prinsloo, Hayley Michener, Jeffrey I Traylor, Vinodh A Kumar, Chibawanye I Ene, Sherise Ferguson, Ho-Ling Liu, Jeffrey S Weinberg, Frederick Lang, Brian A Taylor, Stephanie J Forkel, Sujit S Prabhu

Faculty, Staff and Student Publications

When operating on gliomas near critical language regions, surgeons risk either leaving residual tumor or inducing permanent postoperative language deficits (PLDs). Despite the advent of intraoperative mapping techniques, subjective judgments frequently determine important surgical decisions. We aim to inform data-driven surgery by constructing a non-invasive mapping approach that quantitatively predicts the impact of individual surgical decisions on long-term language function. This study included 79 consecutive patients undergoing resection of language-eloquent gliomas. Patients underwent preoperative navigated transcranial magnetic stimulation (TMS) language mapping to identify language-positive sites ("TMS points") and their associated white matter tracts ("TMS tracts") as well as formal language …

Wave Impacts On Vertical Cliffs: Insights From Laboratory Experiments And Field Observations, Yaxiong Shen, Colin N. Whittaker, Catriona F. Thompson, Alison C. Raby, Adam P. Young, Mark E. Dickson

School of Engineering, Computing and Mathematics

Many engineered and natural coastal structures suffer frequent damage from wave impacts. Motivated by field observations of wave impacts on coastal cliffs, we undertake controlled physical experiments with synchronised measurements of wave properties and their impacts on a vertical structure representing a cliff. Laboratory experiments using focused wave groups show that, in the investigated scenarios, large impacts occur within a relatively narrow phase range (−30° to 35°), covering ∼20% of the full phase range. Our irregular wave experiments indicate that ∼30% of waves break onto or near the cliff face, although not all these breaking waves result in large impacts. …

Intrinsic Defects (Vacancies And Antisites) In Neutron Irradiated Cdsip2 Crystals, Timothy D. Gustafson, Elizabeth M. Scherrer, Nancy C. Giles, Kevin T. Zawilski, Peter G. Schunemann, Jonathan E. Slagle, Kent L. Averett, Larry E. Halliburton

Faculty Publications

Cadmium silicon phosphide (CdSiP₂) is a nonlinear optical material widely used in optical parametric oscillators. Intrinsic defects (vacancies and antisites) are responsible for unwanted broad optical absorption bands in these crystals that degrade the performance of the devices. In the present work, optical absorption and electron paramagnetic resonance (EPR) spectra are acquired (at room temperature and 12 K, respectively) from a neutron-irradiated CdSiP₂ crystal. After the irradiation, the crystal is highly absorbing from the band edge near 600 nm to beyond 1.3 μm because of overlapping defect-related absorption bands. Heating to 550 °C removes nearly all the …

2025-10-15 Eduardo Peñalver Steps Down As President Of Seattle U, Natalie Schorr

The Spectator Online

No abstract provided.

Learning About Stability Of Risk Preferences, Levon Barseghyan, Francesca Molinari, Joshua C. Teitelbaum

Georgetown Law Faculty Publications and Other Works

Classical theories posit that risk preferences are stable across decision contexts. Two branches of empirical literature assess this claim. Structural approaches examine within-person consistency of model-based estimates of risk aversion, while “model-free” approaches examine within-person correlations of risky choices. We elucidate the latent structure underlying the model-free approach. Using this structure, we develop a new approach to assessing preference stability that has stronger testable implications, and we partially identify features of stability and heterogeneity of risk preferences. Our study illustrates a general principle: partial identification through minimal assumptions grounded in economic theory robustly bridges fully structural and model-free methods.

First Use Of The Ku-F600 Automated Analyzer For Descriptive Epidemiology Of Blastocystis Sp. In Erbil, Iraq., Hana Hakim Qadir, Hemdad Hawez Mawlood

Polytechnic Journal

Blastocystis is a common protozoan parasite of the gastrointestinal tract. This study aimed to determine the prevalence, risk factors, and potential pathogenicity of Blastocystis sp. in Erbil province, Iraq, using the KU-F600 Automated Feces Analyzer (AFA).Notably, this is the first study to use this device in Iraq. A total of 580 fecal specimens were collected from patients attendending Mehrabani Surgical Hospital. Samples were tested using the KU-F600 AFA, which incorporates AI-based examination of microscopically identified parasites. demographic and clinical data were collected through questionnaires. All the statistical calculations were performed by GraphPad Prism 10. The prevalence of Blastocystis sp. was …

Graphrag-Enabled Local Large Language Model For Gestational Diabetes Mellitus: Development Of A Proof-Of-Concept, Edmund Evangelista, Fathima Ruba, Salman Bukhari, Amril Nazir, Ravishankar Sharma

All Works

Background: Gestational diabetes mellitus (GDM) is a prevalent chronic condition that affects maternal and fetal health outcomes worldwide, increasingly in underserved populations. While generative artificial intelligence (AI) and large language models (LLMs) have shown promise in health care, their application in GDM management remains underexplored. Objective: This study aimed to investigate whether retrieval-augmented generation techniques, when combined with knowledge graphs (KGs), could improve the contextual relevance and accuracy of AI-driven clinical decision support. For this, we developed and validated a graph-based retrieval-augmented generation (GraphRAG)–enabled local LLM as a clinical support tool for GDM management, assessing its performance against open-source LLM …

Iran And Its Proxies: Attribution And State Responsibility, Jennifer Maddocks

International Law Studies

Iran has invested heavily in proxy militias since the regime's founding in 1979. In the decades that followed, groups such as Hezbollah in Lebanon, Shi'a militias in Iraq and Syria, and the Houthis in Yemen have projected Iran's influence across the region. Today, Iran's proxy network is considerably weakened due to Israel's military actions following October 7, 2023, and the fall of the Assad regime in Syria. Yet the Houthis' attacks on Israel and against Red Sea shipping demonstrate how Iran's support to these groups continues to facilitate their conduct in violation of international law. This article examines Iran's potential …

The Effect Of Genially Based Gamification Learning Models On Student Analysis Thinking Skills In Mathematics, Rosiana Liwayanti, Ida Fiteriani, Ajo Dian Yusandika

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

Berpikir analisis adalah kemampuan untuk menguraikan suatu permasalahan menjadi bagian-bagian yang lebih kecil, kemudian menghubungkannya kembali secara logis sehingga dapat diperoleh pemahaman yang lebih mendalam. Penelitian ini dilatarbelakangi oleh tingkat keterampilan analisis berpikir siswa yang kurang memuaskan, khususnya dalam matematika, serta rendahnya tingkat partisipasi aktif selama pembelajaran. Model pembelajaran gamifikasi dengan memanfaatkan platform Genially menjadi salah satu pilihan inovatif yang dapat diterapkan. Penelitian ini bertujuan untuk mengkaji pengaruh penerapan model pembelajaran gamifikasi berbasis Genially terhadap kemampuan berpikir analitis siswa kelas V pada mata pelajaran matematika di MIN 1 Bandar Lampung. Jenis penelitian yang digunakan adalah eksperimen dengan metode Quasi Experiment …