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University Studies Annual Assessment 2022-2023, Portland State University. University Studies Program

University Studies Annual Assessment Reports

Annual in-depth examination and assessment of Portland State University's general education model, the University Studies Program. The tools and methods used to assess student learning are faculty driven and developed.

Structural Basis For Dna Proofreading, Gina Buchel, Ashok Nayak, Karl Herbine, Azadeh Sarfallah, Viktoriia Sokolova, Angelica Zamudio-Ochoa, Dmitry Temiakov

Department of Biochemistry and Molecular Biology Faculty Papers

DNA polymerase (DNAP) can correct errors in DNA during replication by proofreading, a process critical for cell viability. However, the mechanism by which an erroneously incorporated base translocates from the polymerase to the exonuclease site and the corrected DNA terminus returns has remained elusive. Here, we present an ensemble of nine high-resolution structures representing human mitochondrial DNA polymerase Gamma, Polγ, captured during consecutive proofreading steps. The structures reveal key events, including mismatched base recognition, its dissociation from the polymerase site, forward translocation of DNAP, alterations in DNA trajectory, repositioning and refolding of elements for primer separation, DNAP backtracking, and displacement …

Timeliness In Deterministic Network Data Transfer With An Mqtt Publisher For A Mobile Truck Platoon Scenario, Akram Sheriff, Pascal Thubert, Frank Brockners

Defensive Publications Series

Techniques are presented herein that support the guaranteed and timely delivery of operational technology (OT) messages across any technology-agnostic, wireless Internet of things (IoT) gateway (within a cluster, a truck platoon, a mobility as a service (MaaS) use case, etc.) when the primary node that is running an MQTT publisher (having an active network connection to an MQTT broker or MQTT server) becomes unavailable. Under such an arrangement, an MQTT broker could, depending upon the MaaS or other use case, be running in an edge layer (in an edge-native mode, in a fog layer, or in a cloud layer as …

An Ensemble Dnn Model For Automatic Detection Of Covid-19 From Cxr Scans, Hagar Hesham Eldawoudy, Mohamed Abdelazim Mohamed, Eman Abdelhalim

Mansoura Engineering Journal

The new coronavirus 2019 (COVID-19) pandemic has been destructive to human life and has resulted in a significant number of deaths globally. Detecting COVID-19 as early as possible is a critical way to prohibit the virus from quickly passing among people. RT-PCR is a method used for COVID-19 detection, but it is very expensive and isn’t an accurate method due to its sensitivity of 60–70%. For these reasons, deep learning and imaging techniques are combined by doctors, scientific experts, and professionals for accurate and rapid COVID-19 detection. In this work, we propose a stacked ensemble model based on Linear Regression …

Ai Love, Hannah R. Turner

Critical Humanities

Hannah Turner is an Appalachian poet who often writes of personal insecurities, self-discovery, and ascension beyond the ordinary. Hannah enjoys incorporating conversations of worldly phenomenon into her poems. There is much beauty all around us. As poetry enables a writer to communicate the beauty that underlies even the greatest misfortunes, Hannah has identified the medium of expression as being opportunistic for a lyrical delivery while making mention of emotional human encounters. She is a B.S./Ph.D. Biomedical Research student at Marshall University in Huntington, WV, and a native of Matewan, WV. She draws support from both living and passed family members, …

The New Old Logic Of Ai: A Review Of Mark Coeckelbergh’S The Political Philosophy Of Ai And Calvin Lawrence’S Hidden In White Sight, Steven Wandler

Critical Humanities

The New Old Logic of AI: A Review of Mark Coeckelbergh’s The Political Philosophy of AI and Calvin Lawrence’s Hidden in White Sight by Steven Wandler, St. Catherine University

Aesthetics After The Ontological Turn: An Ecological Approach To Artificial Creativity, Miguel Carvalhais, Diniz C. Ribeiro

Critical Humanities

The development of chatbots and other generative systems powered by AI, particularly the latest version of ChatGPT, rekindled many discussions on topics such as intelligence and creativity, even leading some to suggest that we may be undergoing a “fourth narcissistic wound”. Starting from Margaret Boden’s approach to creativity, we will argue that if computational systems have always excelled at combinatorial creativity, current AI systems stand out at exploratory creativity but are perceived as still falling flat regarding transformational creativity. This paper explores some of the reasons for this, including how, despite the immensity of the conceptual space that results from …

Humanities In The Time Of Chatgpt And Other Forms Of Ai, Puspa Damai, Barbara Postema

Critical Humanities

Humanities in the time of ChatGPT and other forms of AI

Enhancing Dissemination At Medical Conferences: A Cross-Disciplinary Approach For Learners, Raquel Lamarche, Jasmine R. Marcelin

Graduate Medical Education Research Journal

Empowering novice authors, particularly trainees and learners, this perspective piece integrates a cross-disciplinary approach to bolster scholarly dissemination at medical conferences. Through a tripartite methodology — Innovate, Implement, and Influence — the article first delves into innovation, offering four essential heuristics sourced from diverse fields, guiding the germination of ideas. Next, it demystifies the transformation of these ideas into research abstracts through a structured blueprint. The finale encompasses strategies to create compelling presentations that resonate with audiences. Woven throughout is an emphasis on craftsman-like precision in idea execution, fostering relationships, and engaging genuinely with content while maintaining audience-centricity. This blueprint …

Perceptions Of Medical Students By Using Internal Medicine Educational Environment Measure (Imeem) In A Rural Affiliated Teaching Hospital, Sirayut Waramit

Graduate Medical Education Research Journal

Background and Objectives: Students’ perception of the educational setting is an important source for improving and applying changes to the medical educational environment. This study aimed to determine how medical students perceive the important factors of the learning environment in Internal Medicine at a rural affiliated teaching hospital.

Methods: This was a descriptive study carried out in the Department of Medicine, Sakon Nakhon Hospital, Thailand, from May 2021 to April 2023. Sixth-year medical students completed a validated Internal Medicine Education Environment Measure (IMEEM) questionnaire at the end of four weeks of learning the Clerkship Internal Medicine course.

Results: A …

Recurrent Polymicrobial Bloodstream Infections As Harbingers Of A Duodenal-Inferior Vena Cava Fistula, Gregory E. Koval, Richard J. Hankins, Jasmine R. Marcelin

Graduate Medical Education Research Journal

This is a case of an 82-year-old patient who presented with recurrent polymicrobial bloodstream infections and no obvious undrained source of infection. She had prior double barrel iliocaval stenting for post thrombotic syndrome. The patient underwent exploratory laparotomy and primary repair of a duodenal-caval fistula with a fascia lata patch and an omental pedicle flap. No further bloodstream infections were documented after the repair. This discussion highlights an uncommon complication of IVC stenting, its presentation as well as the operative approach used to repair the fistula.

Determination Of Eight Anions In Liquid Milk, Wu Ziling, Yao Xiaoqing, Shen Yingtao, Huang Jiale, He Minheng

Food and Machinery

Objective： A rapid method was established for the simultaneous determination of variety anions in liquid milk. Methods： The macromolecular protein in liquid milk was precipitated by acetonitrile, and a variety of anions were extracted. After purification by C₁₈ column, the material was separated by Dionex IonPac AS19-HC ion column with gradient elution of potassium hydroxide and conductivity detection. Finally, a method for the determination of bromate, thiocyanate, nitrite, nitrate, chlorate, perchlorate, phosphate and iodine ion in liquid milk was established using ion chromatograph. Results： The results showed that the correlation coefficients （R²）of eight kinds of anion …

Meishan Nuo Culture-Based Design And Application Of A Public Brand For Local Specialty Foods From Xinhua, Hunan, Tong Ling

Food and Machinery

In this review, the Meishan culture was investigated, and the Meishan Nuo facial makeup culture was found to be a unique cultural form predominantly native with a diverse coexistence. The distinctive artistic features and cultural connotations of this culture were highlighted. The cultural elements of the primitive, exaggerated, and humorous artistic design techniques were incorporated into the design of the public brand "Meishan Hui" for the local specialty foods in Xinhua. The brand design strategy, from visual to connotative expression, was analyzed by investigating the application of packaging of various local specialty food in Xinhua through case studies, and the …

Progress In The Effect Of Oligosaccharide Modification On Gelability Of Egg White Protein, Zhang Gensheng, Su Wenwen, Xu Guiyang, Su Lirui, Fei Yingmin

Food and Machinery

Egg white protein is a high-quality protein with high nutritional value and a variety of functional properties. The oligosaccharides can be covalently bound to the egg white protein through the glycosylation reaction, and the functional properties of the conjugates were improved compared with the natural egg white protein. In this review, the gel mechanism of oligosaccharide-egg white protein conjugates was reviewed, and the influencing factors of oligosaccharide-modified egg albumin gels were discussed. Moreover, effects of oligosaccharides on the functional properties of egg albumins were summarized, and the processing and application of oligosaccharide-modified egg albumin were prospected.

Research Progress In Extraction Technology And Biological Activity Of Oleuropein, Guo Weiping, Lu Xu, Chu Zejun, Luo Denglin, Xiang Jinle, Xu Yunfeng

Food and Machinery

The review summarized the latest domestical and international research progress in the biosynthesis pathway, safety, extraction process, and biological activity of oleuropein in recent years. The problems in the olive industry was analyzed and its future development direction was prospected.

Food Packaging Defect Detection By Improved Network Model Of Faster R-Cnn, Xia Junyong, Wang Kangyu, Zhou Hongdi

Food and Machinery

Objective: Accurate identification and location of paper packaging box defects. Methods: The improved network model of Faster R-CNN was applied to automatically detect box defects. The data of the training set picture was enhanced and noise was added to improve the training accuracy and robustness of the model. The feature extraction network was replaced with ResNet50, and the feature pyramid network （FPN） was fused to improve the multi-scale detection ability of the model. K-means++ was used to cluster the defect scale in the dataset and optimize the anchor box scheme. Results: The average accuracy （AP） of the improved Faster R-CNN …

Optimization Of Extraction And Antioxidant Activities Of Polyphenols From Honey Peachkernel By Ultrasonic-Assisted Enzymolysis Approach, Guo Mingyi, Deng Yan, Wang Tianxin, Zeng Chuantao, Wu Huachuang

Food and Machinery

Objective: This study aimed to explore the potential use of honey peach kernel as a by-product of characteristic agricultural product processing. Methods: The processing technology was optimized based on a single factor test and response surface test by analyzing the effects of enzyme addition amount, ultrasonic temperature, ethanol concentration, and ultrasonic time on the extraction amount of peach kernel polyphenols. Additionally, the antioxidant activities of the extracted polyphenols were studied. Results: The results showed that the optimal extraction parameters were as follows: enzyme adding quantity 5%, ultrasonic temperature 63 ℃, ethanol concentration 60%, and ultrasonic time 37 min. Under this …

Application Progress Of Supercritical Fluid Chromatography In Food Quality And Safety, Xing Qianqian

Food and Machinery

Modern supercritical fluid chromatography technology has better stability and robustness, which can be coupled with mass spectrometry. Supercritical fluid chromatography has the characteristics of high selectivity, high sensitivity and short consumption time, which is not only suitable for high-throughput analysis, but also the analysis of trace compounds in complex samples. Moreover, the application of supercritical fluid chromatography in food quality and safety and the future development direction of supercritical fluid chromatography were also discussed.

Passive Physical Layer Distinct Native Attribute Cyber Security Monitor, Christopher M. Rondeau, Michael A. Temple, Juan L. Lopez Jr., J. Addison Betances

AFIT Patents

A method for cyber security monitor includes monitoring a network interface that is input-only configured to surreptitiously and covertly receive bit-level, physical layer communication between networked control and sensor field devices. During a training mode, a baseline distinct native attribute (DNA) fingerprint is generated for each networked field device. During a protection mode, a current DNA fingerprint is generated for each networked field device. The current DNA fingerprint is compared to the baseline DNA fingerprint for each networked field device. In response to detect at least one of RAA and PAA based on a change in the current DNA fingerprint …

Bone Fusion System, Frank D. Vrionis, Kamran Aghayev, Sabrina A. Gonzalez Blohm, James J. Doulgeris

USF Patents

A method and system for performing bone fusion and/or securing one or more bones, such as adjacent vertebra, are disclosed. The screws include a threaded tip connected to a main shaft and a threaded outer sleeve that rotates relative to the outer shaft until locked down. Independent rotation of the threaded outer sleeve relative to the threaded distal tip allows compression or distraction to modify the gap between the vertebral bodies. The screws are passed from the inferior to superior vertebra or superior to inferior, for example, through a trans-pedicular route to avoid neurological compromise. At the same time, the …

Microcalcification Crystallography As A Potential Marker Of Dcis Recurrence, Zoey A Miller, Arielle Mueller, Taebeom Kim, Jennifer F Jolivert, Ray Z Ma, Sahil Muthuswami, April Park, Derek B Mcmahon, Kevin T Nead, Ryan M Carey, Robert J Lee

Faculty, Staff and Student Publications

Head and neck squamous cell carcinomas (HNSCCs) have high mortality and significant treatment-related morbidity. It is vital to discover effective, minimally invasive therapies that improve survival and quality of life. Bitter taste receptors (T2Rs) are expressed in HNSCCs, and T2R activation can induce apoptosis. Lidocaine is a local anesthetic that also activates bitter taste receptor 14 (T2R14). Lidocaine has some anti-cancer effects, but the mechanisms are unclear. Here, we find that lidocaine causes intracellular Ca

Doug Haner Oral History, Doug Haner, Lorenzo Spaccarelli

Raymond College

No abstract provided.

Variable Structure Intelligent Control For Mango Drying With Air Source Heat Pump, Guo Xiaoxuan, Guo Min, Han Shuai, Sun Leping

Food and Machinery

Objective: To improve the energy efficiency of mango drying in the air source heat pump system so as to save energy. Methods: The process of drying mangoes was subdivided, and a variable structure control was used to adjust the temperature and humidity of drying room intelligently and dynamically to improve energy efficiency. Each drying process stage was divided into three parts, namely far away from the conversion point, near the conversion point, and closing to the conversion point. For the first two parts, a constrained nonlinear autoregressive neural network (NARX) with external inputs was used to intelligently adjust the temperature …

Effects Of Tea Polysaccharide On The Properties Of Sodium Alginate/Starch/Tea Powder Composite Membrane, Chen Long, Chen Hui, Zhu Jing, Liu Chengyang, Wang Qing

Food and Machinery

Objective: This study aimed to develop a green and environment-friendly sodium alginate/starch/tea powder composite membrane. Methods: Tea polysaccharides with different mass fractions were added to the sodium alginate/starch/tea powder composite film to investigate the influence of tea polysaccharides on the properties of sodium alginate/starch/tea powder composite film. Therefore, full infrared barrier, color difference, water solubility, water vapor permeability, tensile strength, elongation at break, thickness, water content, free radical clearance and bacteriostasis were measured. Results: A strong interaction between tea polysaccharides and sodium alginate were found. The composite film with tea polysaccharide content of 5% exhibited the best comprehensive performance. The …

Analysis On Quality In Three Kinds Of Basal Tea Of Noval-Jasmine Tea Beverage, Zhang Fen, Chen Jiaxian, Yuan Dongyin, Zhang Xuhao, Wen Lixiang

Food and Machinery

Objective: This study aimed to explore the quality features of basal tea of noval-jasmine tea. Methods: Taking three kinds of basal tea（Fujian Xianghao, Yunnan Maojian, Sichuan Xiangming）of noval-jasmine tea beverage scenting tea dhool from Fujian, Yunnan and Sichuan as the research objects, the quality of the base tea including main biochemical components, taste, aroma were analyzed by electronic tongue, solid phase microextraction combined with gas chromatography-mass spectrometry (GC-MS), sensory evaluation and chemical analysis. Results: Water extracts of three kinds of basal tea was 49.40%~51.40%, tea polyphenols was 18.00%~23.20%, caffeine was 3.20%~4.30%, free amino acid was 3.32%~3.50%. The main biochemical components …

Cambridge Leasing Prop. Llc V. Cachimbo

All Decisions

No abstract provided.

The Associations Of Cardiometabolic And Dietary Variables With Clinical Periodontitis In Adults With And Without Type 2 Diabetes: A Cross-Sectional Study, Arpita Basu, Leigh Ann Richardson, Alicia Carlos, Neamat Hassan Abubakr, Robin L. Weltmann, Jeffrey L. Ebersole

Kinesiology and Nutrition Sciences Faculty Research

Periodontitis is a commonly occurring inflammatory oral disease affecting a large proportion of global and US adults and is characterized by the destruction of the tooth-supporting apparatus. Its etiology is multifactorial, and type 2 diabetes and diet play critical roles in its remission and progression. However, few studies have addressed nutritional and serum vitamin D status in adults with periodontitis in the presence of diabetes. A cross-sectional study (n = 78), and a sub-set of age- and BMI-matched case–control studies (n = 50), were conducted to examine differences in dietary and cardiometabolic variables, and serum vitamin D in adults with …

Lidocaine Induces Apoptosis In Head And Neck Squamous Cell Carcinoma Through Activation Of Bitter Taste Receptor T2r14, Zoey A Miller, Arielle Mueller, Taebeom Kim, Jennifer F Jolivert, Ray Z Ma, Sahil Muthuswami, April Park, Derek B Mcmahon, Kevin T Nead, Ryan M Carey, Robert J Lee

Faculty, Staff and Student Publications

Head and neck squamous cell carcinomas (HNSCCs) have high mortality and significant treatment-related morbidity. It is vital to discover effective, minimally invasive therapies that improve survival and quality of life. Bitter taste receptors (T2Rs) are expressed in HNSCCs, and T2R activation can induce apoptosis. Lidocaine is a local anesthetic that also activates bitter taste receptor 14 (T2R14). Lidocaine has some anti-cancer effects, but the mechanisms are unclear. Here, we find that lidocaine causes intracellular Ca

"What Is A Wave But 1000 Drops Working Together?": The Role Of Public Libraries In Addressing Lgbtqia+ Health Information Disparities, Vanessa Lynn Kitzie, A. Nick Vera, Valerie Lookingbill, Travis L. Wagner

Faculty Publications

Purpose. This paper presents results from a participatory action research study with 46 LGBTQIA+ community leaders and 60 library workers who participated in four community forums at public libraries across the US. The forums identified barriers to LGBTQIA+ communities addressing their health questions and concerns and explored strategies for public libraries to tackle them.

Design/methodology/approach. Forums followed the World Café format to facilitate collaborative knowledge development and promote participant-led change. Data sources included collaborative notes taken by participants and observational researcher notes. Data analysis consisted of emic/etic qualitative coding.

Findings. Results revealed that barriers experienced by LGBTQIA+ communities are structurally …

Risk Factors And Management Of Prosthetic Joint Infections In Megaprostheses-A Review Of The Literature, Juan Pretell

All Publications

No abstract provided.