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Does Income Inequality Affect Import Demand in the U.S.?
Get PDFIn this paper, we estimate a time-series import demand model for the United States over the years 1970-2019. The dependent variable is real imports of goods and services. The explanatory variables are real GDP, the relative price of imports, and income inequality as measured by the Gini coefficient. We find no statistical evidence that income inequality affects U.S. import demand
Reviews of Rajesh Singh, _Periodisation of Rock-cut Monuments of India_ and _Khīṅgīla vs. Buddhist Caves_
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A Worldly Enriching Perspective of Norway
Get PDFWhile still in the midst of their study abroad experiences, students at Linfield University write reflective essays. Their essays address issues of cultural similarity and difference, compare lifestyles, mores, norms, and habits between their host countries and home, and examine changes in perceptions about their host countries and the United States. In this essay, Elena Villegas describes observations during their study abroad program at the Oslo Metropolitan University (OsloMet) in Norway
A Modern Boston Tea Party: England Loves Education, What About America?
Get PDFWhile still in the midst of their study abroad experiences, students at Linfield University write reflective essays. Their essays address issues of cultural similarity and difference, compare lifestyles, mores, norms, and habits between their host countries and home, and examine changes in perceptions about their host countries and the United States. In this essay, Tanner Coulter describes observations during their study abroad program at the University of Nottingham in England
A Locals\u27 Favorite
No full textA Locals’ Favorite, taken by Siria Larmay on the Linfield University Semester Abroad Program in Galway, Ireland. 3rd place, Linfield Students Abroad division, in the 2022 Linfield University Study Abroad Photo Contest.https://digitalcommons.linfield.edu/intl_photos2022/1014/thumbnail.jp
crisscrossing Science Episode 118: Harmony in a World of Dissonance
No full textIn this episode, Mike Crosser (professor of physics at Linfield University) and Chad Tillberg (professor of biology at Linfield University) discuss how musical instruments work and why music is scaled in the way that it is
Disability and the COVID-19 Pandemic
No full textThere is little question that the COVID-19 pandemic has made visible and amplified health and social inequities and experiences of exclusion for many individuals and groups in the United States and worldwide. Many disabled people and their families have been particularly impacted by the pandemic and, without consideration of the social factors influencing their experiences, may be at risk for further exclusion in (post)pandemic responses. In this presentation, Elizabeth Straus (visiting assistant professor of nursing at Linfield University) draws on her ongoing multi-country critical narrative research with disabled young people who use ventilators alongside interdisciplinary and digital media sources. She explores individual and social narratives of disability and disabled people’s lives during the pandemic and how we can learn from and leverage these narratives as we (re)imagine our future world
I Sing to Use the Waiting
No full textI composed this art song during my sophomore year for my second semester composition course at Linfield University. This song was composed for piano and soprano. Arwen Myers sang the vocal line and Susan McDaniel played the piano in this recording.
Before the performance recording, there was a workshop recording that took place between the completion of my first draft and the beginning of the editing process for my final draft. The recording pointed out things that the music software playback could not, and I made changes based on my findings in the recording and notes from Myers and McDaniel. Hearing feedback from the performers themselves was a very informative experience, and this whole project helped me to grow as a composer.
The text is a poem by Emily Dickinson titled “I Sing to Use the Waiting,” which I interpreted to be about a woman who is at her life’s end and is now waiting for death to claim her. She sings to distract herself from the dark nature of her ever-approaching demise. I communicated this interpretation through the use of minor for the dark or sad lines of text and the use of major for the hopeful lines. I wrote a motive in the piano that I use throughout the entirety of the piece to give the same sense of anticipation that the “waiter” has, and I modify it to fit the nature of the words that are being sung.
This piece is approximately 2:45 in length
Student-Faculty Collaborative Research Grant Report
No full textIn my laboratory in the summer of 2020, SFCRG funds supported research projects completed by three current Linfield University students, and external funding supported research projects completed by one Linfield University graduate. Working collaboratively, Bronwyn Boyd, Hanna Shields, Lottie Steward Blanke (Linfield students) and Emily Tiedemann (Linfield graduate) engaged in genomics research aimed to discover and characterize orthologs of annotated genes found in Drosophila melanogaster. Our genome annotation in several different species of Drosophila contributed to an exploration of Drosophila genome evolution, specifically enabling the exploration of insulin-signaling pathway evolution. Our genomic analysis characterized evolutionary changes within genomes spanning over 40 million years and aids in the elucidation of the regulation and architecture of conserved gene regulatory networks. Specifically, we annotated the coding sequences of the Glycogen Synthase gene GlyS, an essential component of insulin signaling and blood glucose regulation. Our annotation revealed sequence changes in coding and non-coding regions of GlyS across species and further identified transcriptional start sites for the GlyS gene in species closely related to Drosophila melanogaster. Our identification and analysis of gene regulatory sequences complements an ongoing interest of the lab in transcriptional and post-transcriptional regulation of RNA production and stability. Annotation across 12 species revealed changes to GlyS coding sequences, protein isoforms, or the 5’ untranslated regions (UTRs) of GlyS from Drosophila yakuba to Drosophila grimshawi
Detection of 3,3’-Dihexyloxacarbocyanine iodide by SERS in Silica Sol-gels
Get PDFThe term sol-gel can be derived from a process in which the hydrolysis of precursor molecules in solution react to form a three-dimensional coherent network. In this investigation, tetramethyl orthosilicate (TMOS) was used as the precursor compound to form silica (SiO2) sol-gels because of its ability to form porous, highly structured matrices. In recent years, silica sol-gels (and sol-gels in general) have drawn increasing interest for their applications as possible biosensors and coatings because of their high porosity and emissivity, making them an energy-saving material used commonly in spacecraft and industrial furnaces. Furthermore, the sol-gels can trap other species within their matrix such as silver colloids, creating a unique class of materials that can serve as substrates for Surface-Enhanced Raman Spectroscopy (SERS) measurements on probe molecules either trapped within the silica matrix or that diffuse into the matrix from solution.
An organic fluorescent dye, 3,3’-dihexyloxacarbocyanine iodide (DiOC6(3)), was chosen as a target molecule for detecting distinguishable SERS signals in base-catalyzed and acid-catalyzed sol-gels containing silver colloid because of its facilitating ability to stain and identify mitochondrial changes during early apoptosis in animal and plant cells, and for its capability to stain and visualize thrombus formation in red blood samples. The sol-gel formation was also monitored by Ultraviolet-visible (UV/vis) Spectroscopy to determine the stability of the silver colloids and dye over time.
The results suggested that SERS spectra of DiOC6(3) were experimentally obtainable and that there was a high degree of stability present for DiOC6(3) within acid-catalyzed silica sol-gels, but quickly disappeared within a 24-hour period in base-catalyzed sol-gels. This high level of stability was correlated with the stability of silver nanoparticles as shown through UV/Vis spectrophotometry. Thus, it is likely that the observed DiOC6(3) SERS signal stability of the positively charged dye led to the stabilization of the silver nanoparticles in the acid-catalyzed silica sol-gel matrix. It was ultimately concluded that acid-catalyzed sol-gels containing silver nanoparticles were viable substrates for SERS of DiOC6(3) and that these materials could lead to the development of new techniques for detecting mitochondrial DNA and characterizing other biological, physical, and electrochemical matter as SERS-based sensors