Digital Commons Network^™

Fabrication Of Monodisperse Magnetic Nanorods For Improving Hyperthermia Efficacy, Shan Zhao, Nanjing Hao, John X.J. Zhang, P. Jack Hoopes, Fridon Shubitidze, Zi Chen

Dartmouth Scholarship

Background: Hyperthermia is one of the promising cancer treatment strategies enabled by local heating with the use of tumor-targeting magnetic nanoparticles (MNP) under a non-invasive magnetic field. However, one of the remaining challenges is how to achieve therapeutic levels of heat (without causing damages to regular tissues) in tumors that cannot be effectively treated with anti-tumor drug delivery. Results: In this work, we report a facile method to fabricate magnetic nanorods for hyperthermia by one-step wet chemistry synthesis using 3-Aminopropyltrimethoxysilane (APTMS) as the shape-controlling agent and ferric and ferrous ions as precursors. By adjusting the concentration of APTMS, hydrothermal reaction …

Development And Evaluation Of A Deep Neural Network For Histologic Classification Of Renal Cell Carcinoma On Biopsy And Surgical Resection Slides, Mengdan Zhu, Bing Ren, Ryland Richards, Matthew Suriawinata, Naofumi Tomita, Saeed Hassanpour

Dartmouth Scholarship

Renal cell carcinoma (RCC) is the most common renal cancer in adults. The histopathologic classification of RCC is essential for diagnosis, prognosis, and management of patients. Reorganization and classification of complex histologic patterns of RCC on biopsy and surgical resection slides under a microscope remains a heavily specialized, error-prone, and time-consuming task for pathologists. In this study, we developed a deep neural network model that can accurately classify digitized surgical resection slides and biopsy slides into five related classes: clear cell RCC, papillary RCC, chromophobe RCC, renal oncocytoma, and normal. In addition to the whole-slide classification pipeline, we visualized the …

Meta-Analysis Of Neural Systems Underlying Placebo Analgesia From Individual Participant Fmri Data, Matthias Zunhammer, Tamás Spisák, Tor D. Wager, Ulrike Bingel, Lauren Atlas, Fabrizio Benedetti, Christian Büchel, Jae Chan Choi, Luana Colloca, Davide Duzzi, Falk Eippert, Dan Mikael Ellingsen, Sigrid Elsenbruch, Stephan Geuter, Ted J. Kaptchuk, Simon S. Kessner, Irving Kirsch, Jian Kong, Claus Lamm, Siri Leknes

Dartmouth Scholarship

The brain systems underlying placebo analgesia are insufficiently understood. Here we performed a systematic, participant-level meta-analysis of experimental functional neuroimaging studies of evoked pain under stimulus-intensity-matched placebo and control conditions, encompassing 603 healthy participants from 20 (out of 28 eligible) studies. We find that placebo vs. control treatments induce small, widespread reductions in pain-related activity, particularly in regions belonging to ventral attention (including mid-insula) and somatomotor networks (including posterior insula). Behavioral placebo analgesia correlates with reduced pain-related activity in these networks and the thalamus, habenula, mid-cingulate, and supplementary motor area. Placebo-associated activity increases occur mainly in frontoparietal regions, with high …

Amagmatic Hydrothermal Systems On Mars From Radiogenic Heat, Lujendra Ojha, Suniti Karunatillake, Saman Karimi, Jacob Buffo

Dartmouth Scholarship

Long-lived hydrothermal systems are prime targets for astrobiological exploration on Mars. Unlike magmatic or impact settings, radiogenic hydrothermal systems can survive for >100 million years because of the Ga half-lives of key radioactive elements (e.g., U, Th, and K), but remain unknown on Mars. Here, we use geochemistry, gravity, topography data, and numerical models to find potential radiogenic hydrothermal systems on Mars. We show that the Eridania region, which once contained a vast inland sea, possibly exceeding the combined volume of all other Martian surface water, could have readily hosted a radiogenic hydrothermal system. Thus, radiogenic hydrothermalism in Eridania could …

Characterizing Rescue Performance In A Tertiary Care Medical Center: A Systems Approach To Provide Management Decision Support, Susan P. Mcgrath, Todd Mackenzie, Irina Perreard, George Blike

Dartmouth Scholarship

Background: Allocation of limited resources to improve quality, patient safety, and outcomes is a decision-making challenge health care leaders face every day. While much valuable health care management research has concentrated on administrative data analysis, this approach often falls short of providing actionable information essential for effective management of specific system implementations and complex systems. This comprehensive performance analysis of a hospital-wide system illustrates application of various analysis approaches to support understanding specific system behaviors and identify leverage points for improvement. The study focuses on performance of a hospital rescue system supporting early recognition and response to patient deterioration, which …

Raps Sheet, December 2021, Retirement Association Of Portland State

RAPS Sheet: Monthly Newsletter

No abstract provided.

University Metrics Annual Report, Office Of Institutional Research And Planning

Office of the President Publications and Presentations

At the request of the PSU Board of Trustees in 2019-2020, the President and his executive team developed a set of metrics in the areas of finance, undergraduate and graduate enrollment, and student success. The metrics were approved by the Board of Trustees on August 20, 2020.

For each metric, actual performance is charted against three-year goals, and the results are reported annually to the Board and the PSU Faculty Senate. A narrative report, summary chart, and Excel spreadsheets containing the underlying data are available as supplemental files and also through the University Metrics link on the Office of the …

Reflections On Teaching Against White Supremacy During A Time Of Social Rupture And Transformation, Erica Fonesca, Stéphanie Wahab

School of Social Work Faculty Publications and Presentations

Social Justice and Social Work is a foundational course required for all social work students in the master’s of social work program at Portland State University. Although the course has long focused on interrupting oppressions including White supremacy, teaching the course during the fall of 2020 required a nimble dance between our familiar modes of teaching and the need for spontaneous adaptation and creativity. The unique landscape for this course included teaching the course remotely (Zoom), inside a university embattled around the arming of its security force (that killed a Black man in 2018), in a city targeted by an …

Tactile Materials In Practice: Understanding The Experiences Of Teachers Of The Visually Impaired, Mahika Phutane, Julie Wright, Brenda Veronica Castro, Lei Shi, Simone R. Stern, Holly Lawson, Shiri Azenkot

Special Education Faculty Publications and Presentations

Teachers of the visually impaired (TVIs) regularly present tactile materials (tactile graphics, 3D models, and real objects) to students with vision impairments. Researchers have been increasingly interested in designing tools to support the use of tactile materials, but we still lack an in-depth understanding of how tactile materials are created and used in practice today. To address this gap, we conducted interviews with 21 TVIs and a 3-week diary study with eight of them. We found that tactile materials were regularly used for academic as well as non-academic concepts like tactile literacy, motor ability, and spatial awareness. Real objects and …

‘I Still Desire To Have A Child’: A Qualitative Analysis Of Intersectional Hiv - And Childlessness-Related Stigma In Rural Southwestern Uganda, Madeline Pratt, Moran Owembabazi, Winnie Muyindike, Angela Kaida, Jeanne M. Marrazzo, David Bangsberg, Mwebesa B. Bwana, Christina Psaros, Janet Turan, Multiple Additional Authors

OHSU-PSU School of Public Health Faculty Publications and Presentations

This study explored the intersecting forms of stigma experienced by HIV-sero different couples with unmet reproductive goals in rural Uganda. The parent mixed-methods study, which included 131 HIV-exposed women with plans for pregnancy, offered comprehensive HIV prevention counselling and care over a nine month period. In-depth interviews were conducted with 37 women and seven male partners to explore care experiences and the use of safer conception strategies. This secondary analysis explored how challenges conceiving informed pregnancy plans and HIV prevention behaviours. The following themes were developed (1) partnership conflicts arise from HIV- and infertility-related forms of stigma, contributing to gender-based …

Factors Controlling Longshore Variations Of Beach Changes Induced By Hurricane Hermine Along Pinellas County Beaches, West-Central Florida, Wenhan Zhai

USF Tampa Graduate Theses and Dissertations

Hurricane Hermine, 2016, impacted the coast of west-central Florida and generated high waves superimposed on elevated wave levels which caused significant beach erosion. A total of 122 profiles, spaced about 300 m apart, were surveyed 2 weeks before and one week after the storm to examine the beach changes along three barrier islands along the coast of west-central Florida. including Sand Key, Treasure Island and Long Key. In order to investigates the longshore variations of beach/nearshore changes induced by storm, several parameters were defined and calculated including beach volume changes, berm height, beach width, foreshore slope, as well as sandbar …

Thrombosis With Thrombocytopenia Syndrome After Administration Of Azd1222 Or Ad26.Cov2.S Vaccine For Covid-19: A Systematic Review, Usama Waqar, Shaheer Ahmed, Syed M H Ali Gardezi, Muhammad Sarmad Tahir, Zain Ul Abidin, Ali Hussain, Natasha Bahadur Ali, Syed Faisal Mahmood

Medical College Documents

Background: Cases of thrombosis with thrombocytopenia syndrome (TTS) have been reported following vaccination with AZD1222 or Ad26.COV2.S. This review aimed to explore the pathophysiology, epidemiology, diagnosis, management, and prognosis of TTS.
Methods: A systematic review was conducted to identify evidence on TTS till 4th September 2021. Case reports and series reporting patient-level data were included. Descriptive statistics were reported and compared across patients with different sexes, age groups, vaccines, types of thrombosis, and outcomes.
Findings: Sixty-two studies reporting 160 cases were included from 16 countries. Patients were predominantly females with a median age of 42.50 (22) years. AZD1222 was administered …

Surgical Management Of Subclavian And Proximal Axillary Artery Injuries, Zia Ur Rehman, Suleman Yousaf, Tehmeed Ahmad

Department of Surgery Docs

Subclavian and proximal axillary arterial injuries are rare and difficult to manage. Eight patients were managed from January 2008 to December 2018 at The Aga Khan University Hospital, Karachi, Pakistan with mean age of 36.13 ± 14.48 years. All patients had penetrating injuries, from gunshot in 5 (62.5%), bomb blast in 2 (25%), and stab wound in 1 (12.5%) case. Six (75%) patients presented in haemodynamically stable condition. The mean time between the injury and patient presentation was 28 ± 8.39 hours. The injuries were approached via supraclavicular incision in 3 (37.5%) patients, infraclavicular incisions in 2 (25%) patients and …

Dual Multivector Model Predictive Control For The Power Converters Of A Floating Owc Wec, Marcos Blanco, Dionisio Ramirez, Mohammad Ebrahim Zarei, Mahima Gupta

Electrical and Computer Engineering Faculty Publications and Presentations

Oscillating Water Column (OWC) is one of the most well-known wave energy converter (WEC). Typically, OWCs are installed in rocky shores or in custom-built breakwaters. However, since the wave profile is more favorable in an open sea, it can also be installed in a point absorber in order to increase the energy extraction.

This paper presents the development of a new dual Multivector Model Predictive Control (MMPC) for the power converters of a floating OWC WEC. The fast dynamic response featured by the proposed MMPC has proven to be very suitable to deal with the highly variable torque and velocity …

Empowering Teacher Candidates To Create Social Justice Curriculum Through Civic Engagement Projects, Gayle Y. Thieman

Education Faculty Publications and Presentations

The purpose of this research is to examine how participating in a Civic Engagement Project (CEP) led teacher candidates (TCs) to develop and publish race and social justice curriculum. This article describes the CEP, a graduate level social studies methods course assignment for TCs who research community issues, select a class project, collaborate, create and publish resources for educators. This mixed-methods study examines the challenges, benefits and process of the CEP. TCs' reflections, digital curriculum and resources they created, surveys and interviews with TCs after graduation were analyzed through six criteria of anti-racist curriculum, based on Racial Pedagogical Content Knowledge …

Partizan: Separating The Human From Propaganda With Film, Raymond Hill

University Honors Theses

The relative protection Americans have for freedom of expression can allow stories to be told that would not be able to be told elsewhere. However, telling a story that does not belong to the storyteller and represents people of a different culture or nation can problematize the retelling of events and its perspective. The long-standing rivalry between United States and Russia complicates the matter further, making it difficult to find American film relating to Russia without the inclusion of propaganda and uneducated assumptions in film. Despite these issues, authentic storytelling can provide an informative view of events that the average …

Testing For Cognitive Deficits After Mild Traumatic Brain Injury Using The Automated Neuropsychological Assessment Metric And Dual-Task Assessments, Jasmin Mabry

University Honors Theses

Cognitive deficits are common following mTBI. DT gait assessments and seated computerized exams are often used for evaluating those deficits. Little is known about DT gait and neurocognitive performance in a chronic population. We compared people with chronic mTBI and subacute mTBI to healthy controls (HC) on DT gait and neurocognitive performance and explored the relationship of DT gait performance with a traditional neurocognitive (TNC) exam.

Subjects completed a computerized TNC - the ANAM - and a motor-cognitive DT test which assessed both DT motor performance as well as the cognitive task accuracy. The DT test consisted of subjects walking …

How Has Cultural Marxism Been Used As A Political Tactic In Order To Decrease Trust In Higher Education?, Drew Havnaer

University Honors Theses

This thesis will address the rise in popularity of the political notion of the 'Culture War.' It will trace this theory from its origins in the mid-20th century, through the landmark 1993 Buchanan Culture War speech, and to a modern version, often referred to as the theory of Cultural Marxism. The first part of the argument identifies employment of this theory by modern conservatives, and analyzes how many of us encounter it in our daily life, most prominently in reference to higher education. The second part of the argument targets the effect in colleges and universities specifically. It identifies how …

The Semiconductor Shortage: An Analysis Of Potential And Ongoing Remediation Efforts And Their Implications On The Industry & Macroeconomy, Carter Young

University Honors Theses

In recent months, the health of the macroeconomy has suffered due to logistical issues, inflation, and the labor market. Specifically, supply-side shocks within the semiconductor industry have dramatically affected firms’ ability to produce chipsets. The resulting destabilization is felt across innumerable downstream sectors which rely on these products for implementation into their own finished goods. This paper examines the exact impacts of these recent developments within the semiconductor industry, utilizing what-if and historical analysis to gauge how logistical issues, inflation, and increased capital expenditures will financially impact both firms within the industry and those which depend on their production. Additionally, …

Rapid Method For Consistency And Concentration Reporting Of Cannabidiol Using 1H-Nmr And Computer-Assisted Chemical Software, Michael A. Fernando

University Honors Theses

An integrated computational method was demonstrated with hemp-derived Cannabidiol for an assessment of its purity and concentration. The sample was structurally verified, high purity, and 2.98 mmol/L in dissolved DMSO. The method presented is a general approach to assessing purity and concentration for any small organic molecule in CMC-Assist.

Runs Of Homozygosity In Killer Whale Genomes Provide A Global Record Of Demographic Histories, Andrew D. Foote, Rebecca Hooper, Alana Alexander, Robin W. Baird, Charles Scott Baker, Lisa Ballance, Jay Barlow, Andrew Brownlow, Tim Collins, Rochelle Constantine, Luciano Dalla Rosa, Nicholas J. Davison, John W. Durban, Ruth Esteban, Laurent Excoffier, Sarah L.Fordyce Martin, Karin A. Forney, For Full Author List, See Comments Below

Faculty Research, Scholarly, and Creative Activity

Runs of homozygosity (ROH) occur when offspring inherit haplotypes that are identical by descent from each parent. Length distributions of ROH are informative about population history; specifically, the probability of inbreeding mediated by mating system and/or population demography. Here, we investigated whether variation in killer whale (Orcinus orca) demographic history is reflected in genome-wide heterozygosity and ROH length distributions, using a global data set of 26 genomes representative of geographic and ecotypic variation in this species, and two F1 admixed individuals with Pacific-Atlantic parentage. We first reconstructed demographic history for each population as changes in effective population size through time …

Gaze, Volume 10, Number 2

Gaze, 1979-1990

Co-Editors: Allen Cook, John Stilwell. Staff Writers: Carole Taylor, Bob Dumais, Vincent Astor, Becky Caperton, John House. Typesetting and Layout: Allen Cook, Bob Dumais, Cecil McLeod, John Stilwell. Circulation: Cecil McLeod, John Stilwell, Bob Dumais. Advertising Manager: Bob Dumais.

Special thanks to Rhodes College and the Paul Barret Jr. Library for providing initial scanning of this collection.

Gaze, Volume 11, Number 3

Gaze, 1979-1990

Co-Editors: Allen Cook, John Stilwell. Staff Writers: Vincent Astor, Ken Horton, Becky Caperton. Typesetting and Layout: Allen Cook, John Stilwell, Vincent Astor. Circulation: Cecil McLeod, John Stilwell. Advertising: Vincent Astor.

Special thanks to Rhodes College and the Paul Barret Jr. Library for providing initial scanning of this collection.

The Lived Experiences Of Latinx Parents And Their Perception Of Bilingual Programs: A Phenomenological Reflection, Manuel O. Adrianzen

Dissertations

The aim of this study is two-fold. First, to better understand and capture the lived experiences of Latinx parents as they navigate the registration/enrollment process at the school and select a language program for their Pre-kindergarten child. Second, to understand what lived experiences influence their perception about bilingual education programs. Using Van Manen’s (2016) concept of human sciences and phenomenology, data was collected through the use of conversational interviews. The responses provided by the parents and school clerk revealed five themes, fear & anxiousness, hope for things to come & for a brighter future, use of social networks to understand …

Student Engagement And Equitable Student Learning Outcomes, Douglas K. Harter

Dissertations

Student engagement is consistently shown by research to be a critical component of student learning. An opportunity to link variables of perceived student engagement, perceived student-teacher relationship and clarity, an in-person learning format, and a remote learning format presented itself when, in March of 2020, all Illinois public schools were mandated by Governor J.B. Pritzker to teach in a fully remote structure due to the COVID-19 pandemic. Student survey data results were examined using Wagner et al’s (2006) 4 C’s model to determine if there were statistically significant differences among student engagement and student-teacher relationships when compared across in-person and …

Developing A Therapeutic Alliance In Counseling African American Women Experiencing Domestic Violence, Andrea Kenney

Dissertations

African American women victims of domestic violence (DV) present with unique experiences, requiring counselors to possess multicultural competencies that can cultivate an alliance in which this cultural group feels comfort and trust in the therapeutic process. While there is an awareness of the complexities in counseling African American women who experience DV, gaps in research reveal a need for counselors to improve cultural competency and gain a contextual understanding of the factors that influence this population’s help-seeking behaviors. The purpose of this research was to examine counselors’ experiences with and understanding of multicultural competence in developing a therapeutic alliance with …

Mental Health Treatment In Juvenile Correctional Facilities: Utilizing Assessment To Inform Treatment, Sarah Riccio

Dissertations

Youth in juvenile correctional facilities face a wide range of mental health difficulties. Over the years, the juvenile justice system has prioritized the need for providing appropriate and effective treatment services to youth throughout their detainment. Despite these ongoing efforts, treatment practices in juvenile correctional facilities continue to fall short. This study will first focus on assessment practices within these facilities and the impact current practices have on diagnosis and subsequent treatment. Emphasis will be placed on the importance of comprehensive evaluations for informing diagnosis and determining the individual treatment needs of detained youth. An integrated approach to assessment will …

The Impact Of Stand-Alone Professional Development Versus Job-Embedded Professional Development On Teacher Self-Efficacy: A Program Evaluation, Ayana Lucas

Dissertations

School leaders throughout the United States use various methods to create professional learning opportunities that lead to effective teaching practices. The purpose of my study is to evaluate the impact of stand-alone professional development on teacher self-efficacy of teachers who have attended or incorporated professional development in their learning environments. The context of this evaluation is elementary, middle, and high schools in the United States. My study demonstrates outcomes of a disconnect between instructional leaders and teachers in the perception of job-embedded professional development and its effect on teacher self-efficacy. My study also demonstrated an outcome that there is a …

The Interdependency Of Impactful Teacher Induction Programs And Teacher Retention, Wendy M. Duroseau

Dissertations

The goal of new teacher induction programs was to improve the instruction of new and beginning teachers through ongoing professional development and instructional coaching with the hopes of retaining highly-qualified teachers and improving student learning. This study aims to evaluate the effectiveness of new teacher induction programs based on teacher satisfaction and retention rates. This study addressed the following research questions: (1) What are the known qualities of a highly-effective teacher induction program? and (2) What can school district leaders do to improve a teacher induction program to increase teacher satisfaction and retention rates? The context of this inquiry was …

An Evaluation Of The Impact Of The Student-Teacher Relationship On Student Achievement And Behavior, Sarah James

Dissertations

Researchers have documented the importance and value of the teacher-student relationship for over 20 years. The purpose of my study was to determine if teachers who had a positive and highly effective relationship with their students, as documented with informal and formal observations, also had higher student achievement and a lower discipline referral rate when compared to their non-highly effective peers. The context of this inquiry was kindergarten through eighth grade teachers in one public school district. In my study, I demonstrated both quantitative and qualitative data which matched current research to support teachers who are highly effective with building …