Digital Commons Network^™

Editorial: Fresh Faces, A New Look, And A Bright Future For Lajam, Miriam Marmontel, Daniel Gonzalez-Socoloske

Faculty Publications

No abstract provided.

Informing Wetland Management With Waterfowl Movement And Sanctuary Use Responses To Human-Induced Disturbance, Fiona Mcduie, Austen A. Lorenz, Robert C. Klinger, Cory T. Overton, Cliff L. Feldheim, Joshua T. Ackerman, Michael L. Casazza

Faculty Research, Scholarly, and Creative Activity

Long-term environmental management to prevent waterfowl population declines is informed by ecology, movement behavior and habitat use patterns. Extrinsic factors, such as human-induced disturbance, can cause behavioral changes which may influence movement and resource needs, driving variation that affects management efficacy. To better understand the relationship between human-based disturbance and animal movement and habitat use, and their potential effects on management, we GPS tracked 15 dabbling ducks in California over ~4-weeks before, during and after the start of a recreational hunting season in October/November 2018. We recorded locations at 2-min intervals across three separate 24-h tracking phases: Phase 1) two …

Propagation Of A De Novo Gene Under Natural Selection: Antifreeze Glycoprotein Genes And Their Evolutionary History In Codfishes, Xuan Zhuang, C.-H. Christina Cheng

Biological Sciences Faculty Publications and Presentations

The de novo birth of functional genes from non-coding DNA as an important contributor to new gene formation is increasingly supported by evidence from diverse eukaryotic lineages. However, many uncertainties remain, including how the incipient de novo genes would continue to evolve and the molecular mechanisms underlying their evolutionary trajectory. Here we address these questions by investigating evolutionary history of the de novo antifreeze glycoprotein (AFGP) gene and gene family in gadid (codfish) lineages. We examined AFGP phenotype on a phylogenetic framework encompassing a broad sampling of gadids from freezing and non-freezing habitats. In three select species representing different AFGP-bearing …

Nine-Banded Armadillo (Dasypus Novemcinctus) Activity Patterns Are Influenced By Human Activity, Brett A. Degregorio, Connor Gale, Ellery V. Lassiter, Andrhea Darleen Massey, Caleb P. Roberts, John T. Veon

Biological Sciences Faculty Publications and Presentations

As the human footprint upon the landscape expands, wildlife seeking to avoid human contact are losing the option of altering their spatial distribution and instead are shifting their daily activity patterns to be active at different times than humans. In this study, we used game cameras to evaluate how human development and activity were related to the daily activity patterns of the nine-banded armadillo (Dasypus novemcinctus) along an urban to rural gradient in Arkansas, USA during the winter of 2020–2021. We found that armadillos had substantial behavioral plasticity in regard to the timing of their activity patterns; >95% of …

Estimating The Appropriate Size Of Global Pull Incentives For Antibacterial Medicines, Kevin Outterson

Faculty Scholarship

Antibacterial medicines should be foundational for modern medicine—a key part of the infrastructure of contemporary practice. Recently, however, antibacterials have struggled commercially. Even with “push” incentives (grants paid before regulatory approval), antibacterials have failed on the market because revenues are tied to volume sold. There are policy initiatives under way in the United States and United Kingdom that explore paying for exceptional antibacterials with “pull” incentives (paid after regulatory approval) by delinking the payments from volume via other payment formats such as market entry rewards and subscriptions. This article discusses these initiatives but also proposes an expected net present value …

The Influence Of Maternal Glucocorticoids On Offspring Phenotype In High-And Low-Risk Environments, Kirsty J. Macleod, Tracy Langkilde, Cameron P. Venable, David C. Ensminger, Michael J. Sheriff

Faculty Research, Scholarly, and Creative Activity

Elevated maternal glucocorticoid levels during gestation can lead to phenotypic changes in offspring via maternal effects. Although such effects have traditionally been considered maladaptive, maternally derived glucocorticoids may adaptively prepare offspring for their future environment depending upon the correlation between maternal and offspring environments. Nevertheless, relatively few studies test the effects of prenatal glucocorticoid exposure across multiple environments. We tested the potential for ecologically relevant increases in maternal glucocorticoids in the eastern fence lizard (Sceloporus undulatus) to induce adaptive phenotypic changes in offspring exposed to high or low densities of an invasive fire ant predator. Maternal treatment had limited effects …

Surgical Treatment Of Valvular Heart Disease In Nigeria: A 6-Year Experience, Ikechukwu A Nwafor, John C Eze, Maureen N Nwafor

The Texas Heart Institute Journal

Surgical treatment of valvular heart disease in Nigeria, the most populous country in sub-Saharan Africa, is adversely affected by socioeconomic factors such as poverty and ignorance. To evaluate our experience in this context, we identified all patients who underwent surgery for acquired or congenital valvular heart disease at our Nigerian center from February 2013 through January 2019. We collected data from their medical records, including patient age and sex, pathophysiologic causes and types of valvular disease, surgical treatment, and outcomes. Ninety-three patients (43 males [46.2%]; mean age, 38.9 ± 10.0 yr [range, 11–80 yr]) underwent surgical treatment of a total …

Impact Of E-Resources Literacy On E-Resources Consumption Habits Among College Students: An Experimental Study, Gervasius Nongkseh Mr., Moses Mark Naga Professor, Kamaljit Chirom Dr

Library Philosophy and Practice (e-journal)

E-resources and its usages are escalating rapidly today. This study is an attempt to assess the consumption of e-resources and the impact of e-literacy on the college students of Shillong. For this an experimental method was adopted. Students were given guidance on e-resources and the data was collected on different stages using a structured questionnaire to see the impact on their consumption habits. One premier institute, that is, St. Anthony’s College was selected for the study. It is spectacular to find that there is a significant difference in e-resources consumption among college students at the beginning and at the end …

Approaches To Treat Sensorineural Hearing Loss By Hair-Cell Regeneration: The Current State Of Therapeutic Developments And Their Potential Impact On Audiological Clinical Practice, Ashley S. Hinton, Aizhen Yang-Hood, Angela D. Schrader, Christopher Loose, Kevin K. Ohlemiller, Will J. Mclean

2020-Current year OA Pubs

Sensorineural hearing loss (SNHL) is typically a permanent and often progressive condition that is commonly attributed to sensory cell loss. All vertebrates except mammals can regenerate lost sensory cells. Thus, SNHL is currently only treated with hearing aids or cochlear implants. There has been extensive research to understand how regeneration occurs in nonmammals, how hair cells form during development, and what limits regeneration in maturing mammals. These studies motivated efforts to identify therapeutic interventions to regenerate hair cells as a treatment for hearing loss, with a focus on targeting supporting cells to form new sensory hair cells. The approaches include …

Reconnecting Black Christian Methodist Millennials To The Church, Albritton Nelson

Doctoral Dissertations and Projects

Like other denominations today, the Christian Methodist Episcopal Church (CME) is missing the millennial generation in attendance and activity. The elders of the church genuinely believe that the millennial generation will continue to decline to attend and decrease their membership and the numbers of the church. Some feel that tradition may be the blame because the church refuses to change its ways. Others believe that there’s a lack of vision to understand where the church is going. No matter the reasons for the decline, changes are needed to ensure the health and resilience of the CME Church if it is …

Texture Consumption Patterns Of 8- To 12-Month-Old Infants: A Reflection Of Typical Feeding Development, Amy Delaney, Megan Van Hoorn, Sarah Staskiewicz, Mary B. Feuling, Stephanie Pladies, Naveen K. Bansal, Praveen S. Goday

Mathematical and Statistical Science Faculty Research and Publications

Purpose: The lack of age-appropriate expectations for the acquisition of feeding skills and consumption of textured food in early childhood inhibits early and accurate identification of developmental delay in feeding and pediatric feeding disorder. The objective of this study was to describe texture intake patterns in a cohort of typically developing infants between 8 and 12 months of age, with the aim of informing future research to establish targets for feeding skill acquisition. Method: Using cross-sectional methodology, we studied the presence of liquid and solid textures and drinking methods in the diet, consumption patterns by texture and drinking methods, and …

Modulatory Actions Of The Glycine Receptor Β Subunit On The Positive Allosteric Modulation Of Ethanol In Α2 Containing Receptors, Braulio Muñoz, Trinidad Mariqueo, Pablo Murath, Christian Peters, Gonzalo E. Yevenes, Gustavo Moraga-Cid, Robert W. Peoples, Luis G. Aguayo

Biomedical Sciences Faculty Research and Publications

Alpha1-containing glycine receptors (GlyRs) are major mediators of synaptic inhibition in the spinal cord and brain stem. Recent studies reported the presence of α2-containing GlyRs in other brain regions, such as nucleus accumbens and cerebral cortex. GlyR activation decreases neuronal excitability associated with sensorial information, motor control, and respiratory functions; all of which are significantly altered during ethanol intoxication. We evaluated the role of β GlyR subunits and of two basic amino acid residues, K389 and R390, located in the large intracellular loop (IL) of the α2 GlyR subunit, which are important for binding and functional modulation by Gβγ, the …

Dramatic Reduction Of Distant Pancreatic Metastases Using Local Light Activation Of Verteporfin With Nab-Paclitaxel, Michael Pigula, Zhiming Mai, Sriram Anbil, Myung Gyu Choi, Kenneth Wang, Edward Maytin, Brian Pogue, Tayyaba Hasan

Dartmouth Scholarship

Despite substantial drug development efforts, pancreatic adenocarcinoma (PDAC) remains a difficult disease to treat, and surgical resection is the only potentially curative option. Unfortunately, 80% of patients are ineligible for surgery due to the presence of invasive disease and/or distant metastases at the time of diagnosis. Treatment strategies geared towards reclassifying these patients as surgical candidates by reducing metastatic burden represents the most promising approach to improve long-term survival. We describe a photodynamic therapy (PDT) based approach that, in combination with the first-line chemotherapeutic nab-paclitaxel, effectively addresses distant metastases in three separate orthotopic PDAC models in immunodeficient mice. In addition …

The Role Of Mesoscale Plasma Sheet Dynamics In Ring Current Formation, K. A. Sorathia, A. Michael, V. G. Merkin, A. Y. Ukhorskiy, D. L. Turner, J. G. Lyon, J. Garretson, M. Gkioulidou, F. R. Toffoletto

Dartmouth Scholarship

During geomagnetically active periods ions are transported from the magnetotail into the inner magnetosphere and accelerated to energies of tens to hundreds of keV. These energetic ions, of mixed composition with the most important species being H+ and O+, become the dominant source of plasma pressure in the inner magnetosphere. Ion transport and acceleration can occur at different spatial and temporal scales ranging from global quasi-steady convection to localized impulsive injection events and may depend on the ion gyroradius. In this study we ascertain the relative importance of mesoscale flow structures and the effects of ion non-adiabaticity on the produced …

Children’S Particulate Matter Exposure Characterization As Part Of The New Hampshire Birth Cohort Study, Jonathan Thornburg, Yuliya Halchenko, Michelle Mccombs, Nalyn Siripanichgon, Erin Dowell, Seung Hyun Cho, Jennifer Egner, Vicki Sayarath, Margaret R. Karagas

Dartmouth Scholarship

As part of the New Hampshire Birth Cohort Study, children 3 to 5 years of age participated in a personal PM2.5 exposure study. This paper characterizes the personal PM2.5 exposure and protocol compliance measured with a wearable sensor. The MicroPEM™ collected personal continuous and integrated measures of PM2.5 exposure and compliance data on 272 children. PM2.5, black carbon (BC), and brown carbon tobacco smoke (BrC-ETS) exposure was measured from the filters. We per-formed a multivariate analysis of woodstove presence and other factors that influenced PM2.5, BC, and BrC exposures. We collected valid exposure data from 258 of the 272 participants …

Ultracompact Fluorescence Smartphone Attachment Using Built-In Optics For Protoporphyrin-Ix Quantification In Skin, Brady Hunt, Samuel S. Streeter, Alberto J. Ruiz, M. Shane Chapman, Brian W. Pogue

Dartmouth Scholarship

Smartphone-based fluorescence imaging systems have the potential to provide convenient quantitative image guidance at the point of care. However, common approaches have required the addition of complex optical attachments, which reduce translation potential. In this study, a simple clip-on attachment appropriate for fluorescence imaging of protoporphyrin-IX (PpIX) in skin was designed using the built-in light source and ultrawide camera sensor of a smartphone. Software control for image acquisition and quantitative analysis was developed using the 10-bit video capability of the phone. Optical performance was characterized using PpIX in liquid tissue phantoms and endogenously produced PpIX in mice and human skin. …

The Pacific Sentinel: November/December 2021, Portland State University. Student Publications Board

The Pacific Sentinel

Editor: Vivian Veidt

Articles in this issue include:

• Letter From the Editor
• Police Resistance to Federal Vaccine Mandates
• COVID on Campus
• Death of the Damsel in Distress
• Game Night at the Dysfunctional Family
• Same Old Story, Different Title
• Socially Alive
• The 2021 Portland Book Festival
• PSU Student Feature: Nikki James
• Notes From Behind the Bar
• A Far Reach for Greater Idaho
• The Truth Pandemic

Contributions Made By Undergraduates To Research Projects: Using The Credit Taxonomy To Assess Undergraduate Research Experiences., Matt Honoré, Thomas E. Keller, Jen Lindwall, Rachel Crist, Leslie Bienen, Adrienne Zell

School of Social Work Faculty Publications and Presentations

The authors developed a novel tool, the CREDIT URE, to define and measure roles performed by undergraduate students working in research placements. Derived from an open-source taxonomy for determining authorship credit, the CREDIT URE defines 14 possible roles, allowing students and their research mentors to rate the degree to which students participate in each role. The tool was administered longitudinally across three cohorts of undergraduate student-mentor pairs involved in a biomedical research training program for students from diverse backgrounds. Students engaged most frequently in roles involving data curation, investigation, and writing. Less frequently, students engaged in roles related to software …

Comparison Of Culture With Antibiogram To Next-Generation Sequencing Using Bacterial Isolates And Formalin-Fixed, Paraffin-Embedded Gastric Biopsies, Kristina G Hulten, Robert M Genta, Ira N Kalfus, Yi Zhou, Hongjun Zhang, David Y Graham

Faculty, Staff and Students Publications

BACKGROUND & AIMS: The decline in Helicobacter pylori cure rates emphasizes the need for readily available methods to determine antimicrobial susceptibility. Our aim was to compare targeted next-generation sequencing (NGS) and culture-based H pylori susceptibility testing using clinical isolates and paired formalin-fixed, paraffin-embedded (FFPE) gastric biopsies.

METHODS: H pylori isolates and FFPE tissues were tested for susceptibility to amoxicillin, clarithromycin, metronidazole, levofloxacin, tetracycline, and rifabutin using agar dilution and NGS targeted to 23S rRNA, gyrA, 16S rRNA, pbp1, rpoB and rdxA. Agreement was quantified using κ statistics.

RESULTS: Paired comparisons included 170 isolates and FFPE tissue for amoxicillin, clarithromycin, metronidazole, …

Ckb Inhibits Epithelial-Mesenchymal Transition And Prostate Cancer Progression By Sequestering And Inhibiting Akt Activation, Zheng Wang, Mohit Hulsurkar, Lijuan Zhuo, Jinbang Xu, Han Yang, Samira Naderinezhad, Lin Wang, Guoliang Zhang, Nanping Ai, Linna Li, Jeffrey T Chang, Songlin Zhang, Ladan Fazli, Chad J Creighton, Fang Bai, Michael M Ittmann, Martin E Gleave, Wenliang Li

Faculty, Staff and Students Publications

Epithelial-mesenchymal transition (EMT) contributes to tumor invasion, metastasis and drug resistance. AKT activation is key in a number of cellular processes. While many positive regulators for either EMT or AKT activation have been reported, few negative regulators are established. Through kinase cDNA screen, we identified brain-type creatine kinase (CKB or BCK) as a potent suppressor for both. As a ubiquitously expressed kinase in normal tissues, CKB is significantly downregulated in several solid cancer types. Lower CKB expression is significantly associated with worse prognosis. Phenotypically, CKB overexpression suppresses, while its silencing promotes, EMT and cell migration, xenograft tumor growth and metastasis …

Collaborative Learning As Common Sense - Structure, Roles And Participation Amongst Doctoral Students And Teachers In Music Education – Beyond Communities Of Practice, Cecilia Ferm Almqvist, Anna-Karin Gullberg, Linn Hentschel, Annette Mars, Johan Nyberg, Thomas Van Wachenfeldt

Visions of Research in Music Education

The article communicates an investigation of how collaborative learning is constituted in a PhD-course, namely Collaborative learning in music educational settings. The course was organized and run in a way that wished to investigate, develop and encourage collaborative learning among students and teachers at postgraduate level. Material produced and analysed included logbooks, assignments, peer-response, after-thoughts, and a Facebook discussionthread. The results are presented as descriptions of the constituent parts of collaborative learning occurring in the “rooms” of the course. The results show the importance of structure as well as awareness when it comes to roles and kinds of participation.

Sankyoku Magazine And The Invention Of The Shakuhachi As Religious Instrument In Early 20th-Century Japan, Matt Gillan

Yale Journal of Music & Religion

The early 20^th century was a period in which understandings of music, religion, and the nation-state underwent rapid change in Japan. In this article I examine Japanese cultural discourse from the first decades of the 20^th century in which the shakuhachi, a Japanese bamboo flute, was frequently portrayed as a religious instrument. In some cases, this discourse referenced pre-20^th century historical affiliations of the shakuhachi with the Fuke-sect, an organization that was loosely affiliated to Rinzai Zen Buddhism. But the article also explores how religio-musical discourse surrounding the shakuhachi intersected with developments in modern Japanese religious life, …

Prediction Of Dry Matter Intake Based On Ruminal Degradation From Milking Cows Grazing Coast-Cross Grass, T. T. Berchielli, J. P. G. Soares, L. J. M. Aroeira, C. L. Furlan, A. K. D. Salman, R. N. Da Silveira, E. B. Malheiros

IGC Proceedings (1977-2023)

Dry matter intake (DMI) of coast-cross grazing by crossbred Holstein-Zebu and Zebu lactating cows was calculated using in vitro dry matter digestibility from extrusa (four esophageal fistulated cows) and fecal output estimate with mordent chromium. Pasture was rotationally grazed with three days grazing period and 27 days resting period, adopting a stocking rate of 1.6 and 3.2 cows/ha, during the dry and rainy season respectively. Voluntary DMI was estimated from degradation characteristics using different equations. Predicted coast-cross DMI varied with models. The prediction of tropical forages dry matter intake from equations based in ruminal degradation parameters needs further investigation before …

Forage Quality, Yield And Palatability Of Quackgrass (Elytrigia Repens (L.) Nevski), T. Yagi, R. Meguro, E. Fukuda

IGC Proceedings (1977-2023)

Quackgrass (Elytrigia repens (L.) Nevski) is a competitive perennial invader of pastures and hay meadows which is frequently harvested as forage in mixtures with desired forage species. Field experiments were conducted to compare quackgrass with cool-season perennial grasses grown under the same soil and climatic conditions, in terms of forage quality, productivity, and palatability. The forage quality of the hays was influenced by the grass species. Quackgrass showed forage crude protein (CP) concentration that was equal to those of perennial ryegrass (Lolium perenne), reed canarygrass (Phalaris arundinacea) and Kentucky bluegrass (Poa pratensis), and …

In Vitro Gas Production Technique To Predict Dmd Of Ensiled Forage Ruminant Based Diets, M. Wawrzkiewicz, J. L. Danelón, G. Jaurena

IGC Proceedings (1977-2023)

The in vitro gas production technique was used as a tool to develop an improved prediction model of dry matter digestibility of ensiled forage based diets. Eleven diets were tested through conventional experiments of in vivo dry matter digestibility (DMD). The same diets were evaluated by the in vitro gas production technique using a gas pressure transducer . The parameters of the model y = A - B Q^t Z^√t were calculated with data from the accumulated gas curves, i.e. y=cumulative gas production (ml), Q=e^-b, Z=e^-c, B=e^bT+c√T , being …

Amaranth Productivity And Nutrient Composition In Central Georgia, W. F. Whitehead, Thomas H. Terrill, B. P. Singh, S. Gelaye

IGC Proceedings (1977-2023)

Amaranth (Amaranthus spp.) may have potential as a forage for summer grazing in the southeastern United States (US). Six accessions of amaranth were harvested at bud stage in two successive growing seasons to evaluate growth characteristics, yield, and forage quality parameters. The accessions, three genotypes of A. tricolor (Hinchoy VL, RRC-701, RRC-1186) and one each of A. hybridus (RRC-843), A. cruentus (RRC-1034), and A. dubius (RRC-1186) were evaluated in 1994 and 1995 on a Dothan sandy loam (fine loamy, siliceous, thermic, Plinthic Paleudult) soil at the Fort Valley State University Research Station, Fort Valley, Georgia. The plots were planted …

Supplementation With Brosimum Alicastrum Swartz To Pelibuey Sheep Fed Low Quality Rations, Luis Ramírez-Avilés, V. Valdivia-Salgado, Juan C. Ku-Vera

IGC Proceedings (1977-2023)

The objective of the present study was to assess the influence of supplementing increasing levels of ramón (Brosimum alicastrum) foliage to Pelibuey sheep fed guinea grass (Panicum maximum) hay. Rate and extent of rumen degradation of organic matter (OM) and crude protein (CP) of ramón foliage were high. Dry matter (DM) intake of the diet was increased by the inclusion of ramón foliage. However, rate and extent of digestion of guinea grass was not affected by the ramón foliage. Rate of passage of solid was linearly increased as a result of the inclusion of ramón foliage …

Mathematics Physics Learning E-Module: Differences In Perceptions And Interests Based On Gender, Astalini Astalini, Darmaji Darmaji, Dwi Agus Kurniawan, Riska Fitriani, Haerul Pathoni

Jurnal Inovasi Pendidikan IPA

This study aims to find out the differences in perception and interest of physics education students of FKIP Jambi University towards e-module Mathematics Physics reviewed based on gender differences. This research uses a type of quantitative research, namely survey research. The instrument that has been used is the perception questionnaire. Furthermore, the data obtained is analyzed using descriptive statistics, and inferential statistics, namely assumption tests (normality tests and homogeneity tests) and hypothesis tests (one-way ANOVA tests) with Scheffe advanced tests. The instrument that has been used is the perception questionnaire. Furthermore, the data obtained is analyzed using descriptive statistics, and …

Science Learning Development For The Deaf: A Digital Literacy-Based Learning Design, Rina Dwi Kurniawati, Asri Wijiastuti, Yuliyati Yuliyati

Jurnal Inovasi Pendidikan IPA

Digital literacy-based learning is needed for deaf students in understanding style and motion topics. Application assisted learning in the form of e-books is specially designed for the deaf with an attractive design, accompanied by visual animations of the application of style and motion in everyday life. Thus, the understanding of the topic obtained is not only through text. But animations of every kind of style and examples. This research aims to develop and determine the feasibility of digital literacy-based learning designs for deaf teenagers. The development method used in this research is the Dick, Carey and Carey …

Development Of A Quizmaker Ispring Approach Assessment Instrument To Measure Understanding Of Student Concepts, Desfion Mayuri, Prima Aswirna, Hurriyah Hurriyah

Jurnal Inovasi Pendidikan IPA

The purpose of this study is to produce a valid, practical and effective Ispring Quizmaker Application Assisted Instrument. The development model of the assessment instrument used is the Plomp model which includes three stages of development, namely: preliminary research (preliminary research), the development phase or prototype (development of prototypephase), and the assessment phase (Assessment phase). The results of the study have produced a valid, practical and effective Ispring Quizmaker application-assisted assessment instrument. The instrument is valid both in terms of material, construction, media and language with an average value of 78.76% with a very valid category. The practicality of the …