Digital Commons Network^™

Ex-Ante Temporal Optimization In Soybean Origination: An Overdetermined Approach Through Deep Learning, Noah Joseph Carlson

Agribusiness and Applied Economics

Digitization is influencing commodity trading and agricultural markets and as they transition towards extreme liquidity, agribusiness risk exposures increase, and traditional competitive advantages diminish. In commodity origination, logistics and destination basis comprise the most volatile and determinant influences of margin. To capture a consistently higher margin and represent narrowed interior basis, agribusiness firms must manage these risks by optimizing transformations. To accomplish this, ex-ante decision-making is often necessary as forward price clairvoyance is not always prevalent, is risky, or contains premium. Modeling this spatial equilibrium is difficult through traditional reductionist and essentialist application as the overdetermined and convoluted system presents …

Research Justice: A 25 Year Reflection On Critical Participatory Action Research Behind Bars, Michelle Fine, María Elena Torre, Kathy Boudin, Cheryl Wilkins

Publications and Research

In this chapter, we introduce the notion of research collaboratories where critical inquiry-based collaboration – not experimentation – flourishes; where critical participatory action research (CPAR) projects are conceived and implemented across universities and communities/movements to build theory, transform policy, support social change and forge new solidarities. In these spaces, academics, policy makers, community members, students and activists design research projects together, pool intentionally diverse standpoints, integrate qualitative, quantitative, archival and historic evidence to probe questions of (in)justice, enacting - No Research on Us, Without Us!

Small-Scale Dynamic Aurora, Ryuho Kataoka, Christopher C. Chaston, David Knudsen, Kristina A. Lynch, Robert L. Lysak, Yan Song, Robert Rankin, Kiyoka Murase, Takeshi Sakanoi, Joshua Semeter, Tomo-Hiko Watanabe, Daniel Whiter

Dartmouth Scholarship

Small-scale dynamic auroras have spatial scales of a few km or less, and temporal scales of a few seconds or less, which visualize the complex interplay among charged particles, Alfvén waves, and plasma instabilities working in the magnetosphere-ionosphere coupled regions. We summarize the observed properties of flickering auroras, vortex motions, and filamentary structures. We also summarize the development of fundamental theories, such as dispersive Alfvén waves (DAWs), plasma instabilities in the auroral acceleration region, ionospheric feedback instabilities (IFI), and the ionospheric Alfvén resonator (IAR).

Examining The Auroral Ionosphere In Three Dimensions Using Reconstructed 2d Maps Of Auroral Data To Drive The 3d Gemini Model, Robert Clayton, Meghan Burleigh, Kristina A. Lynch, Matt Zettergren, Tucker Evans, Guy Grubbs, Donald L. Hampton, David Hysell, Stephen Kaeppler, Marc Lessard, Robert Mitchell, Ashton Reimer, T. Maximillian Roberts, Marilia Samara, Roger Varney

Dartmouth Scholarship

We use the Geospace Environment Model of Ion-Neutral Interactions (GEMINI) to create three-dimensional, time-dependent simulations of auroral ionospheric parameters in the localized, several 100 km region surrounding auroral arcs observed during a winter 2017 sounding rocket campaign, resolving three-dimensional features of fine-scale (km) flow structures in the vicinity of an auroral arc. The three-dimensional calculations of GEMINI allow (with sufficient driving data) auroral current closure to be investigated without idealizing assumptions of sheet-like structures or height integrated ionospheres. Datamaps for two nearly sheet-like arcs are reconstructed from replications of the Isinglass sounding rocket campaign data, and combined with camera-based particle …

Program Design And Implementation, Sadhana Warty Hall

Dartmouth Scholarship

Leadership is for everyone. Whether you are a professor, a student, a manager, or an employee, Leadership Blueprints shows that leadership is about bringing “talk into action.” For those looking to create a full curriculum for leadership at a school or workplace, Hall provides a full description of what she and her colleagues have done at Dartmouth College’s Rockefeller Center. By interweaving personal stories, reactions of students who participated in these programs, alumni reflections and strong theoretical foundations, Sadhana Hall brings together many dimensions of how leadership can be taught and lived out daily. This book can either be used …

Estimating The Impacts Of Litter Size And Non-Additive Genetic Effects On Ewe Longevity And Stayability In A U.S. Western Extensive Range Production System, Babatunde Victor Oribamise

Animal Sciences

Non-additive genetic effects are usually ignored in animal breeding programs due to data structure, computational limitations, and over-parameterization of the models. Non-additive genetic effects play an important role in the expression of complex traits in livestock species, such as longevity and stayability. Components of genetic variance for additive and non-additive genetic effects were estimated for longevity and stayability in U.S. Western ewes using pedigree relationship matrices. Litter size were also investigated for direct and maternal effects. For longevity, a larger proportion of phenotypic variance was explained by non-additive genetic effects than by additive effects for model A+D, indicating that including …

Using Uas Images To Remotely Estimate Soil Moisture Content In The Red River Valley, Talon Clancy Mack

Agribusiness and Biosystems Engineering

Accurate measurements of soil moisture in a timely manner are necessary in making critical management decisions, but it is often very difficult to obtain. Even though soil moisture can be measured on the ground using various methods, or estimated via satellite imagery, soil moisture conditions at a field scale can be more beneficial. Since Unmanned Aircraft System (UAS) technology has become an effective tool in many different ways for producers and researchers, the spatial and temporal gaps between the ground and the satellite approaches can be fulfilled with the use of UAS. In this study, multi-spectral images were collected over …

Implementing High-Throughput Phenotyping At The Ndsu Dry Bean (Phaseolus Vulgaris L.) Breeding Program Using Unmanned Aerial Systems, Diego Jose Gris

Agribusiness and Biosystems Engineering

Plant breeding has led to considerable yield gains to several crops. However, it alone might not be able to keep up with the growing demand for food. In this study, data extracted from UAS-collected RGB and multispectral images were assessed on their ability to estimate four agronomic traits in three market classes of dry beans in a breeding program. The results showed that (i) seed yield, 100-seed weight, stem diameter and days to flowering can be estimated within the same market class with variable accuracy; (ii) aggregating data from several flights yielded better results than using a single flight; (iii) …

Understanding The Relationship Between Weather Variables, Dry Matter Intake, And Average Daily Gain Of Beef Cattle, Mustapha Yusuf

Animal Sciences

The current National Academies of Sciences, Engineering and Medicine (NASEM) dry matter intake (DMI) prediction models are inadequate for DMI prediction of beef cattle in the Northern Great Plains. Four studies were conducted to account for additional variation in DMI and average daily gain (ADG) caused by weather variables. Experiment 1 and 2 had 13,895 steer-weeks observations, experiment 3 had 13,739 steer-weeks observations, and experiment 4 had 2,161 cow-weeks observations, respectively. Experiment 1 examined the influence of ambient temperature and solar radiation on DMI of beef steers. In experiment 2, 3, and 4, we examined the influence of ambient temperature, …

Ancestral Breed Grouping For Improving Animal Modeling In Admixed Populations And Its Use In Leptin (Genetic And Hormone) Association Studies With Performance Traits In Commercial Beef Cow Herd, Nayan Bhowmik

Animal Sciences

The first study investigated American Aberdeen (AD) cattle's genetic structure and its genetic relationships with five American taurine beef breeds and the genetic population structure of a related admixed cattle herd for improved statistical modeling. The last two studies investigated the role of leptin (LEP) c.73C>T polymorphism, leptin diplotype (LEPD), and leptin hormone (LEPH) concentration on reproductive, growth, size, feeding, and carcass ultrasound traits in beef cows and heifers. High levels of polymorphism were observed in admixed, Red Angus, and Gelbvieh (GV) populations. The lowest level of polymorphism was found in AD followed by undetermined parentage. Pairwise fixation index …

Changing Practices For Connected Discourse: Starting And Developing Topics In Conversation, John Hellermann, Yo-An Lee

Applied Linguistics Faculty Publications and Presentations

This paper investigates the actions and practices for connected discourse in English conversation. Three university students met weekly for 94 weeks to practice speaking and were video recorded. Each participant made a 10 min presentation about a topic of interest and then the three participants had a conversation. Using ethnomethodological conversation analysis (CA), we examined how participants moved from an orientation to one type of speech exchange system (the monologic presentation) to another (the ‘conversation’) and specifically, the actions and practices for getting the conversation started. We show how an orientation to an interview type of speech exchange system changes …

Nature's Rights, Christiana Ochoa

Articles by Maurer Faculty

Do forests and rivers possess standing to sue? Do mountain ranges have substantive rights? A recent issue of The Judges’ Journal, a preeminent publication for American judges, alerts the bench, bar, and policymakers to the rapidly emerging “rights of nature,” predicting that state and federal courts will increasingly see claims asserting such rights. Within the United States, Tribal law has begun to legally recognize the rights of rivers, mountains, and other natural features. Several municipalities across the United States have also acted to recognize the rights of nature. United States courts have not yet addressed the issue, though in 2017, …

Toward A Law And Politics Of Racial Solidarity, Luis Fuentes-Rohwer, Guy-Uriel Charles

Articles by Maurer Faculty

The killings of George Floyd, Michael Brown, Trayvon Martin, and others have occurred under different factual circumstances, in different states, at the hands of both state and private actors, and have engendered different levels of outrage on the basis of their perceived egregiousness. Collectively and cumulatively, they have forced Americans to, once again, wrestle with the visible manifestation of racism and structural inequality. This confrontation is not simply a function of the inability to avert one’s eyes when faced with incontrovertible evidence of evident inhumanity and abject degradation, though it is in part that. After all, how to justify the …

Circular Economy: Waste-To-Wealth, Jobs The Global South, Katie Conlon, Randika Jayasinghe, Ranahansa Dasanayake

Urban Studies and Planning Faculty Publications and Presentations

Circular Economy [CE] is predominantly framed as a means for circulating material streams within the technosphere as economically as possible, for as long as possible, in both applications of theory and practice. Arising from requirements for regulatory compliance, some global north industries have ventured into CE, and now this model is making headway in all industrial sectors. Whereas, in the global south, CE has been conceptualized as a mechanism for keeping materials out of the waste streams otherwise destined to reach landfills, waterways etc. Characteristic haphazard waste management is a serious socio-environmental issue in Sri Lanka. As a result, CE …

Does The Anthropocene Require Us To Be Saints?, Bennett B. Gilbert

University Studies Faculty Publications and Presentations

This presentation is one of several salients for thinking through the place of moral life and thought in human temporality and historicity, including that of future history, such as the Anthropocene, and in particular questions about personhood in a milieu in which non-human species might have moral claims upon us. I hope to launch your further consideration of these matters in your work on the Anthropocene and anti-anthropocentrism.

Occam Software (And Manual) For Reconstructability Analysis, Martin Zwick, Kenneth Willett, Joe Fusion, Heather Alexander

Complex Systems Faculty Publications and Presentations

OCCAM is a Discrete Multivariate Modeling (DMM) tool based on the methodology of Reconstructability Analysis (RA). As an acronym it stands for Organizational Complexity Computation and Modeling, and the name is also a reference (with a non-standard spelling) to Ockham’s Razor. The principal programmers of its current version have been Kenneth Willett, Joe Fusion, and Heather Alexander. Ken Willett totally rewrote earlier versions of OCCAM. His version was originally called “OCCAM3” to distinguish it from these earlier OCCAM incarnations; the “3” has finally been dropped.

OCCAM’s typical use is to analyze data involving a large number of discrete variables, but …

Reconstructability Analysis Of The Predictors Of Physical Functioning Status In Older Americans By Race And Ethnicity, Amanuel Melekin, Martin Zwick

Complex Systems Faculty Publications and Presentations

This paper demonstrates the use of reconstructability analysis to examine race/ethnic differences in physical functioning status among older Americans. Reconstructability analysis is an information theory and graph theory method which has been successfully used in multivariate data modeling. The health and retirement study data from 2004 are used for this demonstration. Out of eighteen independent variables included, seven variables appeared in the best models selected. Uncertainty reductions in physical functioning status were substantial across the models but the magnitudes and predictive variables varied slightly by race/ethnicity. Examination of the model probability distributions indicated that composite independent variable states of overlapping …

Distress And Resilience In Resettled Refugees Of War: Implications For Screening, Michael Hollifield, Eric C. Toolson, Sasha Verbillis-Kolp, Beth Farmer, Junko Yamazaki, Tsegaba Woldehaimanot, Annette Holland

School of Social Work Faculty Publications and Presentations

There is little work published about predictors of specific trajectory types of distress in refugees of war during early resettlement in a host country. Data about distress (Refugee Health Screener—15 (RHS-15)) and possible predictors of distress were collected at the domestic medical examination (T1) within 90 days of arrival and the civil surgeon examination (T2) 11–16 months after T1 for refugee groups from three countries (COU). Descriptive, correlative, analyses of variance, and regression techniques were used to determine trajectory type and their predictors. A higher percentage (7.3%) were distressed at T2 than at T1. By group, the Bhutanese became more …

A Comparative Study On The Cultivation Of Undergraduate Environmental Talents In Chinese And American Universities Based On Ecosystem Management Thought*, Qing Tian, Bowen Mcbeath, Takeo Morimo, Si Wang

School of Social Work Faculty Publications and Presentations

Since the Industrial Revolution, the relationship between human beings and nature has appeared unprecedented sharp contradiction. In modern times, human beings mainly respond to the contradiction in the relationship between human and nature through environmental management.

Social Determinants Of Health And Parenting Self-Efficacy Among Mothers Of Preterm Infants, Susanne Klawetter, Blair W. Weikel, Kristi L. Roybal, Nazan Cetin, Mathew C, Uretsky, Stephanie L. Bourque, Anne Hall, Sunah S. Hwang, Madalynn Neu, Mauricio A. Palau, Multiple Additional Authors

School of Social Work Faculty Publications and Presentations

Objective: To explore the relationships between social and environmental factors and parenting self-efficacy (PSE) among mothers of preterm infants hospitalized in neonatal intensive care units (NICUs) using a social determinants of health (SDoH) framework. Method: We analyzed data from a prospective cohort study that included 187 mother-infant dyads admitted to four NICUs in the Mountain West region between June 2017 and December 2019. We used multivariable linear regression models to assess the independent associations between maternal and infant characteristics and PSE. Results: Our final multiple linear regression model predicting the efficacy score including maternal race/ethnicity, age, insurance, employment status before …

Evolution Or Revolution In Telehealth Regulation, George Horvath

Faculty Scholarship

No abstract provided.

An Examination Of Limiting Factors Of Chrysemys Picta Bellii (Western Painted Turtles) In The Lower Willamette River Basin, Oregon, James P. Holley

Environmental Science and Management Professional Master's Project Reports

Oregon’s two native freshwater turtle species, Chrysemys picta bellii (Western painted turtle) and Actinemys marmorata (Northwestern pond turtle), have seen significantly reduced population sizes since the founding of Portland in 1845, with estimates of up to 90% for A. marmorata. This project examined turtle nesting activity at 25 sites across a range of turtle populations and habitats around the Lower Willamette River Basin. All discovered turtle nesting activity was found in areas of high solar exposure. We found 93% of over 400 nest attempts to have been depredated across the 25 sites, well above most other reported rates. At …

Statewide Implementation Of High-Fidelity Recovery-Oriented Act: A Case Study, Heidi Herinckx, Alyssa Kerlinger, Karen Cellarius

Regional Research Institute for Human Services

Background: Assertive Community Treatment (ACT) is a recognized evidence-based practice, but the use of Translation Science to ensure the broad implementation of high quality ACT services has not yet been fully explored. This single intrinsic case study explores how Oregon uses strategies identified through Translation Science to achieve statewide implementation of high-fidelity recovery-oriented ACT.

Method: Multiple data sources were used to evaluate this implementation process, including ACT fidelity review reports, programmatic outcome data, a national ACT taskforce survey, and focus groups with program participants.

Findings: In 2013, the Oregon Health Authority funded the creation of the Oregon …

Deep Simulation Of Facial Appearance Changes Following Craniomaxillofacial Bony Movements In Orthognathic Surgical Planning, Lei Ma, Daeseung Kim, Chunfeng Lian, Deqiang Xiao, Tianshu Kuang, Qin Liu, Yankun Lang, Hannah H Deng, Jaime Gateno, Ye Wu, Erkun Yang, Michael A K Liebschner, James J Xia, Pew-Thian Yap

Faculty, Staff and Students Publications

Facial appearance changes with the movements of bony segments in orthognathic surgery of patients with craniomaxillofacial (CMF) deformities. Conventional bio-mechanical methods, such as finite element modeling (FEM), for simulating such changes, are labor intensive and computationally expensive, preventing them from being used in clinical settings. To overcome these limitations, we propose a deep learning framework to predict post-operative facial changes. Specifically, FC-Net, a facial appearance change simulation network, is developed to predict the point displacement vectors associated with a facial point cloud. FC-Net learns the point displacements of a pre-operative facial point cloud from the bony movement vectors between pre-operative …

Adipocyte-Specific Ablation Of Pu1 Promotes Energy Expenditure And Ameliorates Metabolic Syndrome In Aging Mice, Ke Yun Chen, Alejandra De Angulo, Xin Guo, Aditya More, Scott A Ochsner, Eduardo Lopez, David Saul, Weijun Pang, Yuxiang Sun, Neil J Mckenna, Qiang Tong

Faculty, Staff and Students Publications

Objective: Although PU.1/Spi1 is known as a master regulator for macrophage development and function, we have reported previously that it is also expressed in adipocytes and is transcriptionally induced in obesity. Here, we investigated the role of adipocyte PU.1 in the development of the age-associated metabolic syndrome.

Methods: We generated mice with adipocyte-specific PU.1 knockout, assessed metabolic changes in young and older adult PU.1^fl/fl (control) and AdipoqCre PU.1^fl/fl (aPU.1KO) mice, including body weight, body composition, energy expenditure, and glucose homeostasis. We also performed transcriptional analyses using RNA-Sequencing of adipocytes from these mice.

Results: aPU.1KO mice have elevated energy …

Cerebellar Coordination Of Neuronal Communication In Cerebral Cortex, Samuel S Mcafee, Yu Liu, Roy V Sillitoe, Detlef H Heck

Duncan NRI Faculty and Staff Publications

Cognitive processes involve precisely coordinated neuronal communications between multiple cerebral cortical structures in a task specific manner. Rich new evidence now implicates the cerebellum in cognitive functions. There is general agreement that cerebellar cognitive function involves interactions between the cerebellum and cerebral cortical association areas. Traditional views assume reciprocal interactions between one cerebellar and one cerebral cortical site, via closed-loop connections. We offer evidence supporting a new perspective that assigns the cerebellum the role of a coordinator of communication. We propose that the cerebellum participates in cognitive function by modulating the coherence of neuronal oscillations to optimize communications between multiple …

Enhancing Glucose Metabolism Via Gluconeogenesis Is Therapeutic In A Zebrafish Model Of Dravet Syndrome, Rajeswari Banerji, Christopher Huynh, Francisco Figueroa, Matthew T Dinday, Scott C Baraban, Manisha Patel

Faculty, Staff and Students Publications

Energy-producing pathways are novel therapeutic targets for the treatment of neurodevelopmental disorders. Here, we focussed on correcting metabolic defects in a catastrophic paediatric epilepsy, Dravet syndrome which is caused by mutations in sodium channel NaV1.1 gene, SCN1A. We utilized a translatable zebrafish model of Dravet syndrome (scn1lab) which exhibits key characteristics of patients with Dravet syndrome and shows metabolic deficits accompanied by down-regulation of gluconeogenesis genes, pck1 and pck2. Using a metabolism-based small library screen, we identified compounds that increased gluconeogenesis via up-regulation of pck1 gene expression in scn1lab larvae. Treatment with PK11195, a pck1 activator …

A Pharmacokinetic Analysis Of Hemodialysis For Metformin-Associated Lactic Acidosis, Stephen A Harding, Rana Biary, Robert S Hoffman, Mark K Su, Mary Ann Howland

Faculty, Staff and Students Publications

OBJECTIVE: Although hemodialysis is recommended for patients with severe metformin-associated lactic acidosis (MALA), the amount of metformin removed by hemodialysis is poorly documented. We analyzed endogenous clearance and hemodialysis clearance in a patient with MALA.

METHODS: A 62-year-old man with a history of type II diabetes mellitus presented after several days of vomiting and diarrhea and was found to have acute kidney injury (AKI) and severe acidemia. Initial serum metformin concentration was 315.34 μmol/L (40.73 μg/mL) (typical therapeutic concentrations 1-2 μg/mL). He underwent 6 h of hemodialysis. We collected hourly whole blood, serum, urine, and dialysate metformin concentrations. Blood, urine, …

Improving Student Confidence With Electronic Health Record Order Entry, Arindam Sarkar, Anjali Aggarwal, Larissa Grigoryan, Susan G Nash, Nidhi Mehrotra, Roger J Zoorob, William Y Huang

Faculty, Staff and Students Publications

INTRODUCTION: Despite near-universal utilization of electronic health records (EHRs) by physicians in practice, medical students in most ambulatory settings gain limited experience with placing EHR orders. In this study, an individual preceptor site investigated the usefulness of a targeted curriculum in improving students' EHR confidence and clinical reasoning skills.

METHODS: Family medicine clerkship students assigned to one community health center were invited to participate in this prospective, survey-based study. In their first week, students observed a preceptor performing EHR tasks. For the remainder of the 4-week clerkship, students utilized decision support tools, assigned a working diagnosis, entered unsigned orders in …

Open Problems In Extracellular Rna Data Analysis: Insights From An Ercc Online Workshop, Roger P Alexander, Robert R Kitchen, Juan Pablo Tosar, Matthew Roth, Pieter Mestdagh, Klaas E A Max, Joel Rozowsky, Karolina Elżbieta Kaczor-Urbanowicz, Justin Chang, Leonora Balaj, Bojan Losic, Eric L Van Nostrand, Emily Laplante, Bogdan Mateescu, Brian S White, Rongshan Yu, Aleksander Milosavljevic, Gustavo Stolovitzky, Ryan M Spengler

Faculty, Staff and Students Publications

We now know RNA can survive the harsh environment of biofluids when encapsulated in vesicles or by associating with lipoproteins or RNA binding proteins. These extracellular RNA (exRNA) play a role in intercellular signaling, serve as biomarkers of disease, and form the basis of new strategies for disease treatment. The Extracellular RNA Communication Consortium (ERCC) hosted a two-day online workshop (April 19–20, 2021) on the unique challenges of exRNA data analysis. The goal was to foster an open dialog about best practices and discuss open problems in the field, focusing initially on small exRNA sequencing data. Video recordings of workshop …