Digital Commons Network^™

A Quantitative Dose Pertubation Comparison Study Between Gold And Platinum Visicoil Fiducial Markers In Proton Beam Therapy, Xuanfeng Ding, Gang Liu, Weili Zheng, Jessica Vadas, Xiaoqiang Li, Lewei Zhao, An Qin, Daniel Krauss, Di Yan

Conference Presentation Abstracts

Purpose: To quantitatively investigate the dose perturbations difference between gold and platinum VISICOILTM fiducial markers in proton beam therapy Method: Gold and platinum VISICOILTM fiducial markers with two different dimensions were tested, including 0.35 & 0.5mm in diameter and 5mm in length. Total four kinds of markers. Gafchromic EBT2 was used to measure dose perturbations along the beam path in a ‘‘sandwich’’ setup (Figure 1). Dose perturbation was reported in each depth (0.3mm, 1.65mm, 3.00mm, 5.40mm, 7.80mm, 10.20mm, 12.60mm, 18.15mm). Relative proton stopping power relative to water were calculated through National Institute of Standards and Technology database and SRIM (version …

Assessing The Interplay Effect Based On A Precise Machine-Specific Delivery Sequence And Time For Cyclotron Accelerator Proton Therapy System., Lewei Zhao, Gang Liu, Jiajian Sher, Andrew Lee, Di Yan, Rohan Deraniyagala, Craig Stevens, Xiaoqiang Li, Shikui Tang, Xuanfeng Ding

Conference Presentation Abstracts

Purpose: We proposed an experimental approach to build a precise machine-specific model for standard, volumetric, and layer repainting delivery based on a cyclotron accelerator system. Then, we assessed the interplay effect using a 4D mobile lung target phantom compared to a generic delivery sequence model from West German Proton Therapy Essen (WPE). Methods: The machine delivery log files, from an IBA ProteusPLUSt system, were retrospectively analyzed to quantitatively model energy layer switching time, spot switching time, and spot drill time for standard and volumetric repainting delivery. To quantitatively evaluate the interplay effect, a series of digital thoracic 4DCT image sets …

Impacts Of Pandemic-Induced Material Price Escalation On Construction Estimation And Bidding, Chancellor G. Giessinger

Construction Management

The COVID-19 pandemic introduced new severe supply chain bottlenecks in the construction industry. These bottlenecks reduced the availability of a wide variety of critical construction materials, which created a scarcity that has raised material prices at an unprecedented rate and extended lead times for some materials by months. This poses new challenges for contractors with pressure from owners to deliver ongoing contracts with fixed, pre-pandemic contract pricing and for estimators seeking to bid new projects with unforeseeable future material pricing. The objective of this research to focus on contractors operating within the state of California and their primary challenges in …

Butte Area Npl Site Butte Priority Soils Operable Unit (Bpsou), Trec Inc., A Woodard And Curran Company

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Contralateral Control Rate With Unilateral Proton Beam Radiotherapy For Oropharyngeal Scc: A Multi-Institutional Prospective Study From The Proton Collaborative Group, Aleksander Vayntraub, Thomas Quinn, John Chang, Noah Kalman, Sanford Katz, James Urbanic, Arpi Thukral, Jason Molitoris, Craig Stevens, Rohan Deraniyagala

Conference Presentation Abstracts

Introduction: Select patients with oropharyngeal SCC are candidates for unilateral radiation therapy. We sought to investigate if ipsilateral targeting leads to increased contralateral recurrences. Methods: We queried the PCG database for patients treated with unilateral proton RT for head and neck SCC from 2015 – 2020 at 12 institutions. DICOMs were evaluated to ensure dose delivered matched a unilateral proton treatment plan. Demographic, clinical and pathological, toxicity and dosimetry information were compiled. Results: We found 43 cases treated with unilateral proton RT. 94% (n¼16) of recurrent cases received prior radiation. Oropharyngeal sites included tonsillar fossa (n¼32), and base of tongue …

The First Modeling Of The Spot-Scanning Proton Arc(Sparc) Delivery Sequence And Investigating Its Efficiency Improvement, Xuanfeng Ding, Gang Liu, Lewei Zhao, Rohan Deraniyagala, Craig Stevens, Di Yan, Xiaoqiang Li

Conference Presentation Abstracts

Purpose: Introduce an experimental approach to model a precise prototype arc system and quantitatively assess its efficiency improvement in the routine proton clinical operation. Methods: The SPArc delivery sequence model(DSMSPArc) includes two kinds of parameters:(1) mechanical parameters. (2) irradiation parameters. Log files and an independent gantry inclinometer were used to derive the irradiation parameters through a series of test plans. The in-house DSMSPArc was established by fitting both mechanical and irradiation parameters. Eight SPArc plans from different disease sites were used to validate the model’s accuracy. To assess the treatment efficiency improvement, the DSMSPArc was used to simulate the SPArc …

A Direct Machine-Specific Parameters Incorporated Spot-Scanning Proton Arc (Sparc) Algorithm, Gang Liu, Lewei Zhao, Di Yan, Xiaoqiang Li, Xuanfeng Ding

Conference Presentation Abstracts

Purpose: To address the challenges of generating a deliverable and efficient spot-scanning proton arc (SPArc) plan for a proton therapy system. We developed a novel SPArc optimization algorithm (SPArcDMSP) by directly incorporating machinespecific parameters such as mechanical constraints and delivery sequence. Method and Material: A SPArc delivery sequence model (DSMarc) was built based on the machine-specific parameters of the prototype arc delivery system IBA ProteusONEt. The SPArcDMSP resamples and adjusts each control point’s delivery speed based on the DSMarc calculation through the iterative approach (Fig1). Users could set the expected delivery time and gantry max acceleration as a mechanical constraint …

William & Mary Law School Clinical Program News (2021-2022), William & Mary Law School

William & Mary Law School Clinical Program Newsletter

No abstract provided.

Creating Lightbulb Moments: Developing Higher-Order Thinking In Family Law Classrooms Through Court Observations, Sonia M. Gipson Rankin

The Journal of Law and Education

No abstract provided.

Trend Analysis Of Physical Activity Measurement Research Using Text Mining In Big Data Analytics, Seungbak Lee, Minsoo Kang

International Journal of Physical Activity and Health

Measurements of physical activity taken in a valid and reliable way are essential in characterizing the relationship between physical activity and health outcomes. Given the steadily growing interest in the physical activity measurement and the lack of research to identify current trends, this study investigated the research trend of physical activity measurement by applying four text data mining techniques (i.e., future signal, keyword network analysis, keyword trend, and keyword association rule). A total of 54,670 publications from 1982 to 2021 were collected from PubMed. As a result, the current study 1) confirmed two weak signal topics (i.e., “validity of physical …

Reinforcement Sensitivity Theory Factors As Predictors Of Exercise Habits, Self-Efficacy, Social Support, And Affect, Alex C. Garn

International Journal of Physical Activity and Health

Objective: The study investigated contemporary reinforcement sensitivity theory (RST) personality factors as predictors of short-term changes in young adults’ exercise-related outcomes. Specifically, we explore RST factors as predictors of short-term changes in young adults’ reports of their exercise habits, exercise self-efficacy, exercise affect, and elicitation of exercise social support.

Design: Participants (N=406) completed surveys related to RST including four aspects of behavioral approach system, behavioral inhibition system, and fight-flight-freeze system as well as exercise habits, self-efficacy, affect, and social support at the beginning of one semester and took the same exercise survey six-weeks later.

Main Outcomes: Changes in …

The Effects Of Wearable Health Technology On Cancer Survivors’ Physical Activity, Sedentary Behavior, And Weight: A Meta-Analysis, Daphne Blount, Rui Zhang, Anne Blaes, Zan Gao

International Journal of Physical Activity and Health

Wearable health technology (WHT) has been suggested as a health intervention in preventing or reducing health risk factors in clinical populations. Cancer survivors exhibit risk factors prior to cancer diagnosis and acquire comorbidities as a result of their treatment. These conditions may increase likelihood of cancer recurrence and reduce quality of life by inhibiting survivors’ physiological function and predisposing them to other maladies. Several studies have suggested WHTs as an intervention in mitigating these risks. However, there lacks a comprehensive review of the current evidence to determine the efficacy of WHT interventions. Thus, a literature search of WHT studies within …

Rasch Analysis Of The Physical Activity Enjoyment Scale Among 9th- And 10th-Grade Students, Jane Shimon, Yong Gao

International Journal of Physical Activity and Health

Rasch Model analysis was used to evaluate construct validity and reliability of the Physical Activity Enjoyment Scale (PACES) in an adolescent population. A total of 349 9th and 10th graders (180 male; 169 female), aged 13 to 15 years (M = 14.13 SD = .793), completed the 18-item PACES scale at the conclusion of physical education classes. Responses to PACES items were analyzed using Rasch partial credit model. Of the 18 PACES items, five were identified as misfit items and were removed. The remaining 13 good-fit items (difficulty level ranged from -0.81 for Item #10 to 0.66 logits for Item …

Tennessee Bed Space And Operating Capacities Report, April 2022, Tennessee. Department Of Correction.

Bed Space & Capacity Reports

No abstract provided.

The Australia, United Kingdom, United States (Aukus) Nuclear Submarine Agreement: Potential Implications, Bert Chapman

FORCES Initiative: Strategy, Security, and Social Systems

The AUKUS Nuclear Submarine Agreement seeks to enhance multinational deterrence against Chinese geopolitical assertiveness by giving Australia nuclear powered submarines.

▶ This agreement will pose considerable cost and technical challenges for the Australia, the United Kingdom, and the United States.

▶ Estimates of when Australia will be able to deploy nuclear submarines range from 2030-2040.

▶ The U.S. and its allies will have to make challenging decisions about where to build AUKUS in Australia.

▶ There is debate as to whether efforts to deter China in the Asia-Pacific should include non-Anglosphere countries in that region.

▶ Consideration should be given …

Surveillance-Based Risk Score Predicts Stenotic Hemodialysis Arteriovenous Accesses, Lalathaksha Kumbar, B. Astor, Jerry Yee

Nephrology Meeting Abstracts

This prospective study evaluated a novel risk score based on Vasc-Alert surveillance to identify hemodialysis vascular access with significant stenosis. Patients receiving hemodialysis using arteriovenous access with Vasc-Alert scores ≥8 (high score) or ≤ 3 (low score) were prospectively enrolled. Each patient was screened for clinical symptoms of access dysfunction, received a physical examination and a point of care ultrasound scan of the access arm. Subjects were referred to angiogram by the primary care team as per clinical necessity. Clinical monitoring (CM) includes clinical symptoms and signs. Luminal narrowing > 50% found by ultrasound or angiogram is considered significant. A total …

The Social Construction Of Language: Identity, Reality, And Trauma In American Composition Courses, Joselyne Campos

All NMU Master's Theses

The purpose of this thesis is to investigate the ways in which instructors have the potential to reinforce or disrupt systems of oppression and power in the composition classroom through language, writing, and rhetoric. I draw upon pedagogical and rhetorical theorists, to analyze how language closely interacts with identity and how it impacts an individual's understanding and perception of reality. I consider how texts utilize language to communicate normative citizenship and challenge students' conceptions of the world around them, and how to teach from an anti-racist perspective that incorporates critical pedagogy and does not focus solely on minoritized communities’ trauma …

Increase In 1rm Back Squat After Abdominal Stabilizing Maneuvers, Caro Els

All NMU Master's Theses

Increasing intra-abdominal pressure (IAP) during free weight exercises can protect the lumbar spine from excess movement; a cause of lower back pain. Abdominal bracing (AB) and abdominal hollowing (AH) are two stabilizing maneuvers that increase IAP. Previous literature primarily compared AH and AB in therapy settings on bodyweight single joint movements. The effect of AB and AH during a multi-joint movement involving a maximum or near maximum external load is unknown. The purpose of this study was to compare the effect of AB and AH on lower limb muscle activity and the maximum amount of external weight lifted during a …

The Mental Noise Hypothesis: A Relation Between Neuroticism And P3 Latency Variance In A Stroop-Style Reaction Time Task, Jeremy Lawrence

All NMU Master's Theses

Neuroticism is a relatively stable personality dimension characterized by tendencies to experience negative thoughts and affect. Its empirically related outcome measures range from anxiety and mood disorders to increases in mortality. Traditional theories of neuroticism, link the construct to greater threat sensitivity, however, these conceptions fail to account for certain salient features of neuroticism, such as negative affect in threat benign environments. The mental noise hypothesis posits that neuroticism results from a more variable mental control system, with support coming from behavioral, psychometric, and neuroimaging paradigms. To assess whether this more chaotic mental control system would variably disrupt the stimulus …

Kaupa Letters: Volume 9, Issue 4, Korean American University Professors Association

KAUPA Letters

No abstract provided.

Influences Of Personal Innovativeness On Purchase Intention Of Wearable Devices, Beom-Jin Choi

KAUPA Letters

Wearable devices are smart electronics that are worn on and/or close to the human body. This study explores the influences of consumers’ personal innovativeness (CPI) on the relationship between wearability, relative advantage, novelty, aesthetics, and social image on purchase intention of wearable devices. The findings show that social image, novelty, aesthetics, and relative advantage affect purchase intention of consumers whereas wearability shows no significant effect on purchase intention. Novelty shows a significant effect only with consumers of high personal innovativeness.

Nutrient And Organic Carbon Losses By Erosion, And Their Economic And Environmental Implications In The Drylands Of Kenya, Nathan O. Oduor, Monicah Mucheru-Muna, Jayne N. Mugwe, Isaya Sijali, George Nyabuga, Daniel N. Mugendi

Graduate School of Media and Communications

Erosion causes soil nutrients and financial losses, and negatively impacts the environment. We sought to assess the effects of integrated soil fertility and soil & water management practices on nutrient losses, their equivalent economic losses, and environmental disturbance in the drylands of Tharaka-Nithi County. An experiment was set in a randomized complete block design with four replications. Six treatments implemented included manure + fertilizer + tied ridging under 120 kg ha−1 and 30 kg ha−1 nitrogen (N) application rate, manure + fertilizer + minimum tillage with crop residue mulch under 120 N kg ha−1 and 30 N kg ha−1, Managing …

Sex-Specific Effects Of Hatching Order On Nestling Baseline Corticosterone In A Wild Songbird, Madison A. Rittinger, Rachel M. Bowden, Logan A. Sauers, Ryan T. Paitz, Christine J. Poppe, Charles F. Thompson, Scott K. Sakaluk

Faculty Publications – Biological Sciences

Variation in nestling growth and survival is often influenced by hatching order, with first-hatched offspring having an advantage over later-hatched younger siblings. In house wrens (Troglodytes aedon), this effect of hatching order is especially evident in asynchronously hatched broods and can lead to sex-specific differences in the size and condition of nestlings. Females appear to allocate the sex of their offspring across the laying order to capitalize on these differences. We hypothesized that levels of circulating corticosterone, the primary metabolic hormone in birds, mediates these sex-specific effects in nestlings. We predicted that: i) baseline levels of corticosterone in nestlings should …

Occupational Rights Workshops: Critical Reflection, Discussion, And Collaboration With Occupational Therapists, Michelle Arakaki

Student Capstone Papers

In the summer of 2020, occupational therapy organizations condemned systemic racism and called on the profession to improve its’ practices in promoting justice and enhancing efforts in increasing diversity, equity, and inclusion (DEI) (American Occupational Therapy Association, 2020; World Federation of Occupational Therapists). Since then, there have been formations of DEI committees, opportunities for continuing education in justice and antiracist practice, and more discussion in the literature on how therapists could support the occupational rights of their clients. Occupational rights are “the right of all people to engage in occupations that contribute positively to their well-being and the well-being of …

Supporting The Transition Out Of The Family Caregiver Role: An Occupation-Centered Approach, Whitney Wilbanks

Student Capstone Papers

Engagement in meaningful and valued occupations can be used as a means to help former family caregivers cope, heal, and grow following the loss of their loved one (Pickens, 2011). Occupational engagement can be used as a means to help former family caregivers reshape their personal identity, experience a sense of wholeness, and reestablish purpose and balance in their lives (Hocking, 2016). The purpose of this doctoral capstone project was to educate hospice care staff on ways to support individuals with transitioning out of the family caregiver role following the death of the care recipient. An educational resource was developed …

Genome-Wide Identification, Expression Pattern And Sequence Variation Analysis Of Snrk Family Genes In Barley, Jiangyan Xiong, Danyi Chen, Tingting Su, Qiufang Shen, Dezhi Wu, Guoping Zhang

Publications

Sucrose non-fermenting 1 (SNF1)-related protein kinase (SnRK) is a large family of protein kinases that play a significant role in plant stress responses. Although intensive studies have been conducted on SnRK members in some crops, little is known about the SnRK in barley. Using phylogenetic and conserved motif analyses, we discovered 46 SnRK members scattered across barley's 7 chromosomes and classified them into 3 sub-families. The gene structures of HvSnRKs showed the divergence among three subfamilies. Gene duplication and synteny analyses on the genomes of barley and rice revealed the evolutionary features of HvSnRKs. The promoter regions of HvSnRK family …

Remote Vascular Interventional Surgery Robotics: A Literature Review, Yang Zhao, Ziyang Mei, Xiaoxiao Luo, Jingsong Mao, Qingliang Zhao, Gang Liu, Dezhi Wu

Publications

Vascular interventional doctors are exposed to radiation hazards during surgery and endure high work intensity. Remote vascular interventional surgery robotics is a hot research field, in which researchers aim to not only protect the health of interventional doctors, but to also improve surgical accuracy and efficiency. However, the current vascular interventional robots have numerous shortcomings, such as poor haptic feedback, few compatible surgeries and instruments, and cumbersome maintenance and operational procedures. Nevertheless, vascular interventional surgery combined with robotics provides more cutting-edge directions, such as Internet remote surgery combined with 5G network technology and the application of artificial intelligence in surgical …

Envisioning An Equitable Central City, Tanja Olson, Caroline Crisp, Heidi Hinshaw, Sarah Pearlman, Laurel Priest, Jacob Storm

Master of Urban and Regional Planning Workshop Projects

This Master of Urban and Regional Planning (MURP) Workshop project working with our clients, City of Portland’s Bureau of Transportation and Bureau of Planning and Sustainability, advances the pursuit of equity within Portland’s Central City. Six MURP students acted as the consultant, under the name VF Planning, and with the guidance of Portland State University professors.

Portland’s Central City (CC) stretches from the West Hills to SE 12th Avenue and includes ten subdistricts: Lower Albina, Lloyd, and Central Eastside to the east and Pearl, Old Town/Chinatown, Goose Hollow, West End, Downtown, South Downtown/University, and South Waterfront to the west of …

Safety Interventions For Houseless Pedestrians, Peter Domine, Sean Doyle, Asif Haque, Angie Martínez Sulvarán, Nick Meusch, Meisha Whyte

Master of Urban and Regional Planning Workshop Projects

In 2016, the City of Portland adopted the Vision Zero Action Plan with the goal of eliminating traffic deaths and serious injuries on Portland’s streets. The Portland Bureau of Transportation (PBOT) also makes a commitment in all of its plans to create a more equitable transportation system by prioritizing areas of the city with a disproportionate number of BIPOC community members and people with lower incomes, all of whom face a greater risk from traffic violence. To achieve its Vision Zero goals, the City and PBOT have undertaken a number of actions, including redesigning streets through traffic calming and traffic …

Stigma Towards Offenders Diagnosed With Mental Illness, Christina N. Yocca

Student Theses

Mental health stigma is a key factor to what makes members of the community who are diagnosed with mental illness feel like outcasts to the “normal” population. This study investigated the relationship between right-winged beliefs and offenders diagnosed with mental illness. Sigma as it relates to mental health, offenders, and right-winged beliefs have been studied separately before, but there is a lack of information on the stigma that the public has towards offenders who struggle with their mental health and the possible predictors of stigma towards this group. Overall, this study aimed to further research in the intersectionality of stigmatized …