Other Life Sciences Commons^™

"The Relevant History And Medical And Ethical Future Viability Of Xenotransplantation", Morgan Janes

Augustana Center for the Study of Ethics Essay Contest

Xenotransplantation, the transplantation of organs or tissues from one species to another, presents a complex nexus of medical, ethical, and cultural considerations. In this article, we delve into the multifaceted landscape of xenotransplantation, beginning with a thorough examination of its relevant historical trajectory. From early experiments to recent advancements, we chart the evolution of this field, setting the stage for a nuanced discussion. We then confront the central issue: the true medical viability of xenotransplantation and the looming specter of operative risk. By scrutinizing the ethical dilemmas inherent in xenotransplantation through a multicultural lens, we illuminate the diverse perspectives that …

An Interdisciplinary Experience, Reyna Vergara, Michael Dodson

OUR Assignment Repository

This proposal showcases the success of an interdisciplinary approach. It provides an overview of a project titled: "Cacao and Chocolate: A Powerful Legacy." It took place during Hispanic Heritage Month in 2023. The project aimed to explore the rich and multifaceted legacy of cacao and chocolate in Latin America, incorporating perspectives from various academic disciplines, including public history, chemistry, Spanish language, graphic design, culinary arts, and family science. The interdisciplinary nature of the project highlights the power of collaboration in research and education, serving as a model for integrating diverse fields of study.

The project was divided into two main …

Climate Change-Associated Declines In Water Clarity Impair Feeding By Common Loons, Walter H. Piper, Max R. Glines, Kevin C. Rose

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Climate change has myriad impacts on ecosystems, but the mechanisms by which it affects individual species can be difficult to pinpoint. One strategy to discover such mechanisms is to identify a specific ecological factor related to survival or reproduction and determine how that factor is affected by climate. Here we used Landsat imagery to calculate water clarity for 127 lakes in northern Wisconsin from 1995 to 2021 and thus investigate the effect of clarity on the body condition of an aquatic visual predator, the common loon (Gavia immer). In addition, we examined rainfall and temperature as potential predictors …

Overcoming The Barriers To Teaching Teamwork To Undergraduates In Stem, Gregory R. Goldsmith, Miranda L. Aiken, Hector M. Camarillo-Abad, Kamal Diki, Daniel L. Gardner, Mario Stipčić, Javier F. Espeleta

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

There is widespread recognition that undergraduate students in the life sciences must learn how to work in teams. However, instructors who wish to incorporate teamwork into their classrooms rarely have formal training in how to teach teamwork. This is further complicated by the application of synonymous and often ambiguous terminology regarding teamwork that is found in literature spread among many different disciplines. There are significant barriers for instructors wishing to identify and implement best practices. We synthesize key concepts in teamwork by considering the knowledge, skills, and attitudes (KSAs) necessary for success, the pedagogies and curricula for teaching those KSAs, …

Variations In Student Approaches To Problem Solving In Undergraduate Biology Education, Jeremy L. Hsu, Rou-Jia Sung, Su L. Swarat, Alexandra J. Gore, Stephanie Kim, Stanley M. Lo

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Existing research has investigated student problem-solving strategies across science, technology, engineering, and mathematics; however, there is limited work in undergraduate biology education on how various aspects that influence learning combine to generate holistic approaches to problem solving. Through the lens of situated cognition, we consider problem solving as a learning phenomenon that involves the interactions between internal cognition of the learner and the external learning environment. Using phenomenography as a methodology, we investigated undergraduate student approaches to problem solving in biology through interviews. We identified five aspects of problem solving (including knowledge, strategy, intention, metacognition, and mindset) that define three …

Capture History Data From Hair Snare Sampling Of Wild Pigs In Mississippi, Tyler S. Evans, Eric T. Hileman, Melanie R. Boudreau, Bronson K. Strickland, Raymond B. Iglay

College of Forest Resources Publications and Scholarship

Capture histories of wild pigs (Sus scrofa) identified using nuclear DNA markers from hair snare samples activated on the Sam D. Hamilton Noxubee National Wildlife Refuge in Mississippi between 2021 and 2022. Hair snares were active for 8 weeks (occassions) with non-grain attractants placed at the center of each snare. Dat includes unique pig identifiers (Pig_ID), capture histories (Capture_Occassion), and associated capture year (Group).

Variables Affecting The Extraction Of Antioxidants In Cold And Hot Brew Coffee: A Review, Brian Yust, Frank Wilkinson, Niny Rao

College of Life Sciences Faculty Papers

Coffee beans are a readily available, abundant source of antioxidants used worldwide. With the increasing interest in and consumption of coffee beverages globally, research into the production, preparation, and chemical profile of coffee has also increased in recent years. A wide range of variables such as roasting temperature, coffee grind size, brewing temperature, and brewing duration can have a significant impact on the extractable antioxidant content of coffee products. While there is no single standard method for measuring all of the antioxidants found in coffee, multiple methods which introduce the coffee product to a target molecule or reagent can be …

Kluyveromyces Marxianus Prepared As A Ready To Use Supplemental Food (Rusf), Zachary Christman

Applied Science Program: Theses

Ready to Use Supplemental Food (RUSF) is a nutrient dense paste or compressed bar used to supplement a person’s nutritional needs because of malnutrition or due to food shortages. The purpose of this article is to demonstrate some methods of how the dairy organism Kluyveromyces marxianus can be used to enrich the protein value of bread or ferment a substrate such as wheat bran into a more digestible form.

Protein Enriched Bread Using Spent Wine Yeast, Zachary Christman

Applied Science Program: Theses

Yeast is a common byproduct of wine production. Wine yeast may be used as a food source. It does not contain bitter and astringent compounds such as those present in spent yeast from making beer The use of nutritional yeast and yeast extract for protein enrichment of bread are presented in this article.

Thriving Hives: The Beekeeper's Annual Journal, Andree' Walker Bravo, Shauna Collard Bagley, Sheriden M. Hansen, Jaydee Gunnell

All Current Publications

This beekeeping journal organizes apiary information at your fingertips, along with monthly tasks and tips to help beekeepers be successful with their hives.

Science Communication Training Imparts Confidence And Influences Public Engagement Activity, Christina M. Swords, Jerlym S. Porter, Amy J. Hawkins, Edwin Li, Melissa Rowland-Goldsmith, Matthew D. Koci, John F. Tansey, Nicole C. Woitowich

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

The impacts of science are felt across all socio-ecological levels, ranging from the individual to societal. In order to adapt or respond to scientific discoveries, novel technologies, or biomedical or environmental challenges, a fundamental understanding of science is necessary. However, antiscientific rhetoric, mistrust in science, and the dissemination of misinformation hinder the promotion of science as a necessary and beneficial component of our world. Scientists can promote scientific literacy by establishing dialogues with nonexperts, but they may find a lack of formal training as a barrier to public engagement. To address this, the American Society for Biochemistry and Molecular Biology …

3rd Place Contest Entry: Using The Scientific Method To Combat The Biological And Sociological Effects Of The Covid-19 Pandemic: An Aspiring Healthcare Professional’S Perspective, Isabelle Dhindsa

Kevin and Tam Ross Undergraduate Research Prize

This is Isabelle Dhindsa's submission for the 2023 Kevin and Tam Ross Undergraduate Research Prize, which won third place. It contains their essay on using library resources, their bibliography, and a sample of their research project on using the scientific method to combat the biological and sociological effects of the COVID-19 pandemic.

Isabelle is a fourth-year student at Chapman University, majoring in Biology. Their faculty mentor is Dr. Carmichael Peters.

Extraction And Characterization Of Antifungal Compounds Produced By Lowbush Blueberry Plants In Response To Monilinia Vaccinii-Corymbosi Infection, Sophia Suriano

Honors College

Maine’s wild blueberries are a vital economic and ecological resource for growers, consumers, and researchers alike. Fungal diseases like Monilinia vacciniicorymbosi (MVC) reduce the yield of berries from infected plants by killing plant tissues and damaging fruit. Understanding what blueberry plants use to defend themselves against fungal pathogens can give a greater insight into increasing plant immunity as a whole. This project aims to better understand the wild blueberry antifungal defense response. I extracted bioactive compounds from the healthy leaves of low severity and high severity disease-affected plants and separated the molecules with thin layer chromatography (TLC). Aspergillus sp. acted …

Does Physical Activity Moderate The Association Between Shorter Leukocyte Telomere Length And Incident Coronary Heart Disease? Data From 54,180 Uk Biobank Participants, Meiruo Xiang, Luke C. Pilling, David Melzer, Ben Kirk, Gustavo Duque, Rui Liu, George A. Kuchel, Andrew R. Wood, Brad Metcalf, Breno S. Diniz, Melvyn Hillsdon, Chia-Ling Kuo

Health Science Faculty Publications

Telomere shortening is a biological aging hallmark. The effect of short telomere length may be targeted by increased physical activity to reduce the risk of multiple aging-related diseases, including coronary heart disease (CHD). The objective was to assess the moderation effect of accelerometer-based physical activity (aPA) on the association between shorter leukocyte telomere length (LTL) relatively in the population sample and incident CHD. Data were from the UK Biobank participants with well-calibrated accelerometer data for at least 6.5 days (n = 54,180). Relative mean LTL at baseline (5–6 years prior to aPA assessment) was measured in T/S ratio, using a …

Ecological Protection Alone Is Not Enough To Conserve Ecosystem Carbon Storage: Evidence From Guangdong, China, Lihan Cui, Wenwen Tang, Sheng Zheng, Ramesh P. Singh

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

The increase in atmospheric CO₂ caused by land use and land cover change (LUCC) is one of the drivers of the global climate. As one of the most typical high-urbanization areas, the ecological conflicts occurring in Guangdong Province warrant urgent attention. A growing body of evidence suggests LUCC could guide the future ecosystem carbon storage, but most LUCC simulations are simply based on model results without full consistency with the actual situation. Fully combined with the territorial spatial planning project and based on the land use pattern in 2010 and 2020, we have used the Markov and Patch-generating Land …

Quantifying The Relationship Between Soil Organic Carbon And Soil Color In Nebraska, Aldi J. Airori

Applied Science Program: Theses

Soil color is easily measured in the field and holds potential to be used as an indirect measurement of soil organic carbon (SOC). The main limitation to this approach is knowledge about the specific color-SOC relationship in a region, which often varies in relation to parent material, soil texture, climate, and land use. Furthermore, the Munsell color data is subjective in nature. The objectives of this study are: 1) to develop and evaluate the accuracy of pedotransfer functions (PTFs) for the prediction of SOC based on soil color and texture in the state of Nebraska and 2) to evaluate digital …

Student Motivations And Barriers Toward Online And In-Person Office Hours In Stem Courses, Jeremy L. Hsu, Melissa Rowland-Goldsmith, Elaine Benaksas Schwartz

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Office hours are one of the most common support mechanisms found in courses. Despite the prevalence of office hours in life sciences classes, there has been little investigation of how science, technology, engineering, and math (STEM) students perceive office hours, particularly at non–research intensive universities or other institutions where a majority of students attend office hours. We surveyed more than 500 students, representing most life sciences majors at a comprehensive university, to investigate their motivations and barriers for attending office hours. We then compared instructors’ perceptions to students’ conceptions of office hours. We identified key themes in student and instructor …

Open Source Solutions In Experimental Design: An Introduction To The Symposium, Richelle L. Tanner, Kirt L. Onthank

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

The Open Science movement has increased dramatically in popularity with deserved calls to action around transparency, access to resources, and inclusion in our field. However, its practical applications within experimental design have been slow to uptake, with researchers unsure where to even start with the dizzying array of open source hardware and software solutions available. The perceived time investment and unknown cost, especially in implementing open source hardware, has stagnated the implementation of inexpensive experimental solutions, but we sought to increase awareness to lower the barrier to participation in this space. While there are countless technical and financial advantages to …

Genome Sequence Of Sn1, A Bacteriophage That Infects Sphaerotilus Natans And Pseudomonas Aeruginosa, K.M. Damitha Gunathilake, Denise M. Tremblay, Pier-Luc Plante, Ellen Jensen, Kenneth Nickerson, Sylvain Moineau

Kenneth Nickerson Papers

Phage SN1 infects Sphaerotilus natans and Pseudomonas aeruginosa strains. Its genome consists of 61,858 bp (64.3% GC) and 89 genes, including 32 with predicted functions. SN1 genome is very similar to Pseudomonas phage M6, which contains hypermodified thymidines. Genome analyses revealed similar base-modifying genes as those found in M6.

Phage SN1 was isolated in 1979 from activated sludge samples obtained from a wastewater treatment plant (Lincoln, Nebraska, USA) using S. natans ATCC 13338 as the host (1, 2). An early study showed that the siphophage SN1 has unusual bases in its genome as confirmed by cellulose thin-layer chromatography (1). Its …

Alfred Russel Wallace Notes 22: Stumbling Blocks To An Understanding Of Wallace's Worldview, Charles H. Smith

Faculty/Staff Personal Papers

The writings of Alfred Russel Wallace (1823−1913) present a challenge to modern readers, both for the large range of subjects he entertained, and his unique point of view. In this short treatment, ten ‘stumbling blocks’ to an appreciation of Wallace’s thought are outlined which, it is suggested, have caused problems of interpretation in the past.

Tissue Decay Tested In Modern Metasequoia Leaves: Implications For Early Diagenesis Of Leaves In Fossil Lagerstätten, Caitlyn R. Witkowski, Qin Leng, Christopher W. Reid, Liang Feng, Hong Yang

Science and Technology Department Faculty Journal Articles

Sedimentary deposits yielding extraordinarily-preserved fossils (known as Lagerstätten) may provide significant insights into the physiology and environments of ancient plants, particularly when the fossils represent their original characteristics with limited diagenetic modifications. To better understand molecular, isotopic, and morphological changes during the early stages of diagenesis, degradation experiments were conducted in two time series: 1) a laboratory decay series using fungi on leaves over the course of a month and 2) a natural decay series with leaves collected from different stages of leaf senescence and early diagenesis. Both experiments used modern leaves of the dawn redwood Metasequoia glyptostroboides …

Virtual Expeditions Facilitated By Open Source Solutions Broaden Student Participation In Natural History Research, Richelle L. Tanner, Talia Y. Moore

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

From its genesis in the Victorian era as an activity for the elite to today's emphasis on “Big Data” and continuous monitoring, natural history has a prominent role in scientific discoveries for many fields. However, participation in field expeditions is limited by funding, space, accessibility, and safety constraints. Others have detailed the active exclusion of minoritized groups from field expeditions and harm/discrimination faced by the few who do participate, but we provide one solution to broaden opportunities for participation in natural history: Virtual Expeditions. Virtual Expeditions are broadly defined as open source, web-facilitated research activities designed to analyze bulk-collected digital …

An Overview Of The Forensic Analysis And Use Of Non-Human Dna, Kaelyn Long

Senior Honors Theses

DNA is present in every living organism on Earth. DNA is also present in a few non-living biological agents such as DNA-containing viruses, and is additionally unique to particular groups of organisms and often even to individuals. This characteristic allows DNA to be quite useful in forensic investigations. This study takes an in-depth look at the forensic use of non-human DNA. DNA analysis is a key component of many forensic investigations, but the majority of these analyses are focused on human DNA. This review examines the ways in which non-human DNA can be useful to forensic investigations. The various unique …

The Utilization Of Volatile Organic Compounds And Human Leukocyte Antigen Genes For Ethnic-Specific Differentiation Within Target Populations, Alice Breia Boone

FIU Electronic Theses and Dissertations

Human scent has been previously defined as a complex mixture of volatile organic compounds (VOCs) detected in the headspace above a scent sample. Humans generate odor from several areas of the body including hair, mouth, hand, axillae, and foot. Due to the novelty of human scent research, human scent evidence has been undervalued in the court of law. However, this type of evidence has significant value when physical evidence is not available at crime scenes. To increase the individualization and differentiation power of human scent evidence, this study aimed to further investigate the identification of chemical signatures within axillae of …

A Push For Inclusive Data Collection In Stem Organizations, Nicholas P. Burnett, Alyssa M. Hernandez, Emily E. King, Richelle L. Tanner, Kathryn Wilsterman

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Professional organizations in STEM (science, technology, engineering, and mathematics) can use demographic data to quantify recruitment and retention (R&R) of underrepresented groups within their memberships. However, variation in the types of demographic data collected can influence the targeting and perceived impacts of R&R efforts - e.g., giving false signals of R&R for some groups. We obtained demographic surveys from 73 U.S.-affiliated STEM organizations, collectively representing 712,000 members and conference-attendees. We found large differences in the demographic categories surveyed (e.g., disability status, sexual orientation) and the available response options. These discrepancies indicate a lack of consensus regarding the demographic groups that …

The Coxsackievirus And Adenovirus Receptor Has A Short Half-Life In Epithelial Cells, Poornima Kotha Lakshmi Narayan, James M. Readler, Mahmoud S. Alghamri, Trisha L. Brockman, Ray Yan, Priyanka Sharma, Vladislav Snitsarev, Katherine J.D.A Excoffon, Abimbola O. Kolawole

Department of Biology Faculty Scholarship and Creative Works

The coxsackievirus and adenovirus receptor (CAR) is an essential cellular protein that is involved in cell adhesion, cell signaling, and viral infection. The 8-exon encoded isoform (CAREx8) resides at the apical surface of polarized epithelia, where it is accessible as a receptor for adenovirus entering the airway lumen. Given its pivotal role in viral infection, it is a target for antiviral strategies. To understand the regulation of CAREx8 and determine the feasibility of receptor down regulation, the half-life of total and apical localized CAREx8 was determined and correlated with adenovirus transduction. Total and apical CAREx8 has a relatively short half-life …

Emory-Tibet Science Initiative: Changes In Monastic Science Learning Motivation And Engagement During A Six-Year Curriculum, Kelsey M. Gray, Cindy Achat-Mendes, Ann Cale Kruger, Tashi Lhamo, Rinchen Wangyal, Gelek Gyatso, Carol M. Worthman

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Led by His Holiness the Dalai Lama, the initiative taken by the Tibetan Buddhist monastic community to connect with western science and scientists presents a unique opportunity to understand the motivations and engagement behaviors that contribute to monastic science learning. In this study, we draw on quantitative data from two distinct surveys that track motivations and engagement behaviors related to science education among monastic students. The first survey was administered at one monastic university in 2018, and the second follow-up survey was completed by students at two monastic universities in 2019. These surveys assessed the reception of science education related …

Population Dynamics, Relative Abundance, And Habitat Suitability Of Adult Red Drum (Sciaenops Ocellatus) In Nearshore Waters Of The North-Central Gulf Of Mexico, Crystal Hightower, J. Marcus Drymon, Amanda E. Jefferson, Matthew B. Jargowsky, Emily A. Seubert, Simon Dedman, John Mareska, Sean P. Powers

University Faculty and Staff Publications

In the Gulf of Mexico, the red drum (Sciaenops ocellatus) is an immensely popular sportfish, yet the Gulf of Mexico stock is currently managed as data-limited in federal waters. The results of the federal stock assessment conducted in 2016 for Gulf of Mexico red drum were not recommended for providing management advice. Consequently, we sought to address data gaps highlighted in the assessment by producing up-to- date overall and sex-specific growth models, standardized indices of relative abundance, and predictions of habitat suitability and by updating estimates of natural mortality. Using a time series for the period of 2006–2018, we assigned …

Fish And Invertebrate Use Of Restored Vs. Natural Oyster Reefs In A Shallow Temperate Latitude Estuary, Jonathan H. Grabowski, Christopher J. Baillie, Adam Baukus, Rachael Carlyle, F. Joel Fodrie, Rachel K. Gittman, A. Randall Hughes, David L. Kimbro, Juhyung Lee, Hunter S. Lenihan, Sean P. Powers, Kevin Sullivan

University Faculty and Staff Publications

Coastal marine habitats continue to be degraded, thereby compelling largescale restoration in many parts of the world. Whether restored habitats function similarly to natural habitats and fully recover lost ecosystem services is unclear. In estuaries, oyster reefs have been degraded by multiple anthropogenic activities including destructive fishing practices and reduced water quality, motivating restoration to maintain oyster fisheries and other ecosystem services, often at relatively high cost. We compared fish and invertebrate communities on recently restored (0–1 year post-restoration), older restored (3–4 years post-restoration), and natural oyster reefs to determine if and when restored reefs support functionally similar faunal communities. …

Farnesol Secretion As A Possible Driving Force For Maintaining Candida Albicans As A Diploid, Kenneth Nickerson, Cory Boone, Kory Parker

Kenneth Nickerson Papers

Candida albicans is a pathogenic dimorphic fungus which is invariably found as a diploid in patients. C. albicans secretes the sesquiterpene farnesol both as a quorum sensing molecule which blocks the yeast to hypha conversion and as a virulence factor for pathogenicity. 20-25 μM farnesol kills other competing yeasts and fungi, often by triggering apoptosis, and yet wild type diploid C. albicans tolerates 300-500 μM farnesol. The recent availability of 10 haploid strains of C. albicans (5 mating type aand 5 mating type α) allowed us to compare their production of and sensitivity to farnesol. On average, the heterozygous diploid …