Life Sciences Commons^™

Leaf Optical And Indirect Lai Measurements In Wheat And Alfalfa At Maciv: Agmet Progress Report 89-4, E. A. Walter-Shea, B. L. Blad

School of Natural Resources: Documents and Reviews

No abstract provided.

Meat, The Future: The Role Of Regulators In The Lab-Grown Revolution, Joseph B. Davault, Michael S. Sinha

All Faculty Scholarship

The United States is one of the largest consumers of meat globally. The production of meat contributes substantially to climate change due to the levels of greenhouse gasses emitted and the amount of land, water, feed, and other natural resources required to raise animals used for meat. Traditional meat production is another major source for the emergence of zoonotic diseases and antimicrobial-resistant pathogens. Nevertheless, Americans consume more meat now than at any time in the nation’s history.

Advocates for policy change aimed at addressing the risks associated with meat production have typically focused on reducing meat consumption, alternatives to meat, …

Transcription Factor Expression Landscape In Drosophila Embryonic Cell Lines, Robert A. Drewell, Daniel Klonaros, Jacqueline Dresch

Biology

Background: Transcription factor (TF) proteins are a key component of the gene regulatory networks that control cellular fates and function. TFs bind DNA regulatory elements in a sequence-specific manner and modulate target gene expression through combinatorial interactions with each other, cofactors, and chromatin-modifying proteins. Large-scale studies over the last two decades have helped shed light on the complex network of TFs that regulate development in Drosophila melanogaster. Results: Here, we present a detailed characterization of expression of all known and predicted Drosophila TFs in two well-established embryonic cell lines, Kc167 and S2 cells. Using deep coverage RNA sequencing approaches we …

Environmental Dna Identifies Coastal Plant Community Shift 1,000 Years Ago In Torrens Island, South Australia, Nicole R. Foster, Alice R. Jones, Oscar Serrano, Anna Lafratta, Paul S. Lavery, Kor-Jent Van Dijk, Ed Biffin, Bronwyn M. Gillanders, Jennifer Young, Pere Masque, Patricia S. Gadd, Geraldine E. Jacobsen, Atun Zawadzki, Andria Greene, Michelle Waycott

Research outputs 2022 to 2026

Anthropogenic activities are causing detrimental changes to coastal plants– namely seagrass, mangrove, and tidal marshes. Looking beyond recent times to past vegetation dynamics is critical to assess the response and resilience of an environment to change. Here, we develop a high-resolution multi-proxy approach, providing a new evidence base to decipher long-term change in coastal plant communities. Combining targeted environmental DNA analysis with chemical analysis of soils, we reconstructed 4,000 years of change at a temperate wetland on Torrens Island South Australia and identified an ecosystem shift that occurred ~ 1000 years ago. What was once a subtidal seagrass system shifted …

Effects Of Roadways On Seasonal Movement Strategies And Mate Location Success In An Imperiled Pit Viper (Crotalus Horridus), Elizabeth J. Noble

Graduate Research Showcase

A detailed understanding of animal movement behavior is fundamental to effective conservation and management. Within populations, a diversity of movement strategies can be displayed in search of critical resources, and these strategies are influenced by multiple interacting factors related to individuals and the environment. Mating partners are one critical resource that often serves as a prominent selective force shaping movement during mating seasons. For many large-bodied snakes, such as pit vipers (Viperidae: Crotalinae), male mate- searching movements are the primary determinant of mate location success. During this time, males incur significant risks associated with elevated movement. In an increasingly human- …

The Reveal: A Technical Study And Conservation Treatment Of An Overpaint Portrait, Camille Ferrer

Art Conservation Master's Projects

A severely damaged 19th-century oil painting depicting a portrait of a woman was treated at Patricia H. and E. Garman Art Conservation Department. A typed letter provided by the owner mentioned that it has been previously restored yet returned with unsatisfactory results. After further examination, the painting appeared to have been previously treated multiple times by different people. There was overpaint distinctly present on the face and later discovered to be present overall. The full state of condition of the painting was initially unknown due to the sum of the surface being overpainted. However, there were evidence of paint loss …

The Value Of Support: Stem Intervention Programs Impact Student Persistence And Belonging., Erin E. Shortlidge, Mackenzie J. Gray, Suzanne Estes, Emma C. Goodwin

Biology Faculty Publications and Presentations

In response to unwaveringly high attrition from STEM pathways, STEM Intervention Programs (SIPs) support STEM students in effort to increase retention. Using mixed methods (survey and focus groups), we studied students at one university who were either supported or unsupported by SIPs to understand how students may differ in experiences believed to contribute to STEM persistence. We evaluated: sense of belonging, scientific self-efficacy, scientific community values, scientific identity, and STEM involvement. The enrollment status of students two and a half years postsurvey was also tracked. SIP students reported significantly higher science identity and sense of belonging and were more involved …

Environmental Magnesium Ion Affects Global Gene Expression, Motility, Biofilm Formation And Virulence Of Vibrio Parahaemolyticus, Xue Li, Xiaobai Zhang, Miaomiao Zhang, Xi Luo, Tingting Zhang, Xianjin Liu, Renfei Lu, Yiquan Zhang

Journal Articles

No abstract provided.

Oil Identification Of Harp Seal And Other Select Marine Mammals, Meghan Pinedo, Deborah A. Duffield, Dalin N. D’Alessandro, Erin R. Price, Edgard O. Espinoza

Biology Faculty Publications and Presentations

Because of the rich omega-3 fatty acids content, harp seal (Pagophilus groenlandicus) oil is a popular supplement that is packaged as pills in Canada and sold for medicinal purposes, although this practice is banned in the United States. Due to US regulations, it is important to be able to distinguish between fish oil and seal oil, but the taxonomic determination of oils provenance has been a difficult problem to solve. In this study, Direct Analysis in Real Time time-of-flight mass spectrometry (DART TOFMS) was used to analyze the chemotypes of blubber samples collected from seven species of …

Development Of A Food Composition Database For The Estimation Of Dietary S-Methyl Cysteine Sulfoxide From Vegetables, Caroline R. Hill, Emma L. Connolly, Armaghan Shafaei, Lois Balmer, Liezhou Zhong, Taulant Muka, Antonietta Hayhoe, Shikha Saha, Richard J. Woodman, Joshua R. Lewis, Jonathan M. Hodgson, Lauren C. Blekkenhorst

Research outputs 2022 to 2026

A food composition database estimating S-methyl cysteine sulfoxide (SMCSO) was created following a systematic literature search. SMCSO data (705 entries) from 19 vegetables were summarised: brassicas (n = 10) and alliums (n = 9). The highest SMCSO in brassicas was reported in Brussels sprouts (median [range]: 318 [68−420] mg/100 g fresh weight (FW)) whilst the lowest was in radish (19 [4–45] mg/100 g FW). Brussels sprouts were almost twice as concentrated in SMCSO as cauliflower, followed by cabbage, kale, broccoli, kohlrabi, swede, Chinese cabbage, and turnips. The alliums highest in SMCSO were Chinese chives (271 [185−413] mg/100 g FW) followed …

Aerobic Exercise Improves Depressive Symptoms In The Unilateral 6-Ohda-Lesioned Rat Model Of Parkinson's Disease, Hannah Loughlin, Jacob Jackson, Chloe Looman, Alayna Starll, Jeremy Goldman, Zhiying Shan, Chunxiu Yu

Michigan Tech Publications, Part 2

Aerobic exercise has been shown to have established benefits on motor function in Parkinson's disease (PD). However, the impact of exercise on depressive symptoms in PD remains unclear. This study aimed to investigate the effects of regular exercise, specifically using a forced running wheel, on both motor performance and the prevalence of depression in a unilateral 6-OHDA-lesioned rat model of PD. The behavioral outcomes of exercise were assessed through the rotarod test (RT), forelimb adjusting step test (FAST), sucrose consumption test (SCT), and novelty sucrose splash test (NSST). Our data revealed evident depressive symptoms in the PD animals, characterized by …

Animal Science Research Report 2024 (Complete Report), Department Of Animal Science

Animal Science Research Report 2024

This is the complete proceedings of the South Dakota State University, Department of Animal Science Research Report 2024. The report contains research on ruminant, non-ruminant, and meat science.

On-Site Sensory Experience Boosts Acceptance Of Cultivated Chicken, Mark Chong, Angela K. Y. Leung, Tricia Marjorie Fernandez

Research Collection Lee Kong Chian School Of Business

This study set out to assess if presenting cultivated chicken in the context of a familiar meal, in a familiar dining setting, would motivate repeat consumption and recommendation. A survey of 107 diners was conducted at Huber's Butchery and Bistro in Singapore – the world's first butchery to serve cultivated meat – from April to June 2023. The findings showed that eating cultivated chicken significantly boosted post-consumption acceptance levels. In addition, cultivated chicken's tastiness may be a more important factor than its integration into a familiar meal or dish in fostering repeat consumption. Implications for the cultivated meat industry, limitations, …

Nature Of The Evidence Base And Approaches To Guide Nutrition Interventions For Individuals: A Position Paper From The Academy Of Nutrition Sciences, Mary Hickson, Constantina Papoutsakis, Angela M Madden, Mary Anne Smith, Kevin Whelan

Journal Articles

This Position Paper from the Academy of Nutrition Sciences is the third in a series which describe the nature of the scientific evidence and frameworks that underpin nutrition recommendations for health. This paper focuses on evidence which guides the application of dietary recommendations for individuals. In some situations, modified nutrient intake becomes essential to prevent deficiency, optimise development and health, or manage symptoms and disease progression. Disease and its treatment can also affect taste, appetite and ability to access and prepare foods, with associated financial impacts. Therefore, the practice of nutrition and dietetics must integrate and apply the sciences of …

The North Central Extension Risk Management Education Center, Part Iii: Outcomes And Impacts, Bradley D. Lubben, Christine Lockert, Sheila Aikanathan Johnson, Milan Chauhan

Cornhusker Economics

The North Central Extension Risk Management Education (ERME) Center has existed since 2001 to help support producer-focused agricultural risk management education across the twelve-state North Central Region. The Center works together with centers in other regions of the country to implement a comprehensive program of needs assessment, regional grantmaking, capacity building, and evaluation and reporting to support projects that help producers manage risk and document the outcomes and impacts of those projects.

The last two Cornhusker Economics articles have described the Center and its activities and have highlighted the successes of some recently funded projects. This article concludes the discussion …

Operation Shark: Addressing The Negative Portrayal Of Sharks In Media, Michael R. O'Shea

Masters Theses

Sharks are some of the most well adapted and effective animals in the animal kingdom. Unfortunately, they are also some of the most feared. For many people the word shark evokes images of vicious attacks like those seen in movies such as Jaws. Sharks have also been negatively portrayed in the media. This negative portrayal of sharks has led to misconceptions about sharks that have damaged their populations. Efforts have been made to raise awareness and fight common misconceptions of sharks. However, many people still hold on to the incorrect ideas they have about sharks. This thesis will examine the …

Creating Sustainable School And Home Gardens: Native Bee Homes, Daniel Findlay, Kaitlin Campbell, Rita Hagevik, Kathy Cabe Trundle

All Current Publications

This fact sheet is part of a series about creating sustainable school and home gardens. It provides information and resources on bee homes, including learning about bees and how to help them, how to obtain and install bee homes, fall cocoon care, fun facts, and resources.

Caffeine’S Impact On Heart Rate Variability During Short-Term Exercise In University Students, Maya J. Spinler, Morgan M. Payne, Christopher Carroll Dr.

Human Kinetics & Applied Health Sciences Student Works

The primary objective is to explore the physiological effects of caffeine on intra-bout exercise-induced blood pressure (BP) and heart rate (HR) deceleration resulting from repeated anaerobic exercise cycling in active university students. Use of caffeinated stimulants has increased in recent years, particularly in the exercise setting. The cardiovascular system (CS) is an essential piece of exercise physiology and is controlled by the autonomic nervous system (ANS). Caffeine has a known effect on the CS during acute exercise. What is not well solidified is the connection between caffeine and exercise-induced markers, such as heart rate recovery (HRR) and BP. Participants underwent …

Ankle Mobility And Balance In A Healthy College-Aged Population: A Correlational Study, Anna G. Johnson, Madelyn M. Roiger, Elisa M. Stewart

Human Kinetics & Applied Health Sciences Student Works

A review of current literature shows a relationship between ankle mobility and balance in an older population, with limited evidence in younger, healthy populations. To bridge this gap, this study aims to explore this relationship in a healthy, college-aged population. Maintaining upright balance is an integrated effort by the vestibular, somatosensory, and visual systems. Regaining a loss of balance happens with three strategies: an ankle strategy for small perturbations, a hip strategy for moderate perturbations, and a stepping strategy for the largest loss to regain a new base of support. Taking these sequential responses into account, the investigators specifically looked …

Proteomic Characterization And Cytotoxic Potential Of Proteins From Cuscuta (Cuscuta Epithymum (L.) Crude Herbal Product Against Mcf-7 Human Breast Cancer Cell Line, Umaima Akhtar, Yamna Khurshid, Bishoy El-Aarag, Basir Syed, Ishtiaq A. Khan, Keykavous Parang, Aftab Ahmed

Pharmacy Faculty Articles and Research

Background

The burden of breast cancer, the second leading cause of death worldwide, is increasing at an alarming rate. Cuscuta, used in traditional medicine for different ailments, including cancer, is known for containing phytochemicals that exhibit anticancer activity; however, the bioactivities of proteins from this plant remain unexplored. This study aimed to screen the cytotoxic potential of proteins from the crude herbal product of Cuscuta epithymum(L.) (CE) harvested from the host plants Alhagi maurorum and Medicago sativa.

Methods

The proteins from CE were extracted using a salting-out method, followed by fractionation with a gel filtration chromatography column. Gel-free shotgun …

Reassignment Of Some Caryospora Species (Apicomplexa: Eimeriidae) To Eumonospora (Apicomplexa: Sarcocystidae) And A Summary, Donald W. Duszynski

MANTER: Journal of Parasite Biodiversity

This review was crafted to clear up some of the current confusion regarding the correct taxonomic placement of those apicomplexan coccidians that produce unique monosporocystic octosporozoic (1 sporocyst with 8 sporozoites) oocysts during the sexual phase of their life history in vertebrate hosts. Currently, such oocysts have been placed in 1 of 4 genera, Avispora, Caryospora, Karyospora, or Eumonospora, 2 of which are no longer accepted or useful (Avispora and Karyospora). My review suggests that to present (2023) there are 62 valid Caryospora and 26 valid Eumonospora species. Caryospora species are recorded from a bird …

Biodiversity Loss & Urban Heat: A Nature- Based Wildlife Policy For The Las Vegas Metro, Zachary Billot

Student Research

As the population of the Las Vegas Metro continues to grow, new developments expand on the periphery. As Las Vegas continues to increase in size and develop further into wildlife habitat, not only are native animals and plants endangered, but residents are at risk of increasingly dangerous urban heat given the increase in impervious cover that makes Las Vegas the 2nd fastest warming metro in the U.S. This policy brief examines current policy and practice in place to highlight the need for positive human-wildlife interaction that will address the growing threat of biodiversity loss and heat vulnerability. This policy brief …

Temporal And Spatial Influences On Fawn Summer Survival In Pronghorn Populations: Management Implications From Noninvasive Monitoring, Cole A. Bleke, Eric M. Gese, Juan J. Villalba, Shane B. Roberts, Susannah S. French

Wildland Resources Student Research

Monitoring vital rates allows managers to estimate trends in growth rates of ungulate populations. However, connecting the influence of nutrition on ungulate demography is challenging. Noninvasive sampling offers a low-cost, low-effort alternative for measuring nutritional indices, allowing for an increased understanding of the mechanistic relationships between environmental factors, nutrition, and specific population vital rates. We examined the temporal influence of intrinsic and extrinsic factors on pronghorn (Antilocapra americana) fawn recruitment. We collected fresh fecal samples from adult female pronghorn in five subpopulations spanning three sampling periods associated with critical maternal life-history stages (late gestation, early lactation, breeding season) …

Designing Sustainable Systems Using Nature’S Toolbox, Matthew J. Hasenjager

Faculty Publications and Other Works -- Ecology and Evolutionary Biology

Supporting the Earth’s human population without destabilizing planetary processes is the central challenge of sustainability science. Key to achieving this goal is designing systems that are robust and resilient to dynamic and unpredictable conditions. Bioinspiration leverages naturally evolved solutions to address such challenges, yet a solution derived from one-to-one correspondence between a natural and artificial challenge can be limited in its broader application. Here we advocate for an approach to nature-inspired design that forgoes mimicking specific solutions in favor of identifying general design features that enable natural systems to function. These features are not specific to any naturally evolved solution …

Ideas For Estate And Transition Planning: Gift Leaseback, Jessica Groskopf

Center for Agricultural Profitability

Simply gifting assets helps reduce estate value and potential taxes for the owners and increase the wealth of the heirs. However, some families are hesitant to engage in gifting strategies because the farm or the ranch needs access to those assets to remain viable. This article expands on gifting strategies by combining gifts with a lease agreement.

With Love, ; An Interdisciplinary And Intersectional Look At Why Creativity Is Essential, Theo Starr Gardner

Whittier Scholars Program

My Whittier Scholars Program self-designed major, Teaching Creativity, is a mixture of Art, Literature, and Education classes. My research and praxis classes have been focused on the ‘how?’s and 'why?’s of creativity, so it felt only right that my project should be a constructivist, generative project. The project I have been working on throughout my time at Whittier, and that has just fully come to fruition on April 11th, 2024, was a solo art gallery/open mic event entitled ‘With Love,’. With Love, was conceptually inspired by the research I’ve conducted on creativity and creative arts education over the past few …

Creating Sustainable School And Home Gardens: Welcoming Pollinators, Kaitlin Cambell, Rita Hagevik, Kathy Cabe Trundle

All Current Publications

This fact sheet is part of a series about creating sustainable school and home gardens. It focuses on welcoming pollinators to the garden by providing a safe and effective habitat, and lists recommended plantings and resources.

North Central Extension Risk Management Education Center Helps Producers Manage Risks, Christine Lockert, Sheila Aikanathan Johnson, Bradley D. Lubben

Cornhusker Economics

Established in 2001, the North Central Extension Risk Management Education Center (NCERMEC) has a long history of supporting risk management education programs serving producers in the region. Located at the University of Nebraska-Lincoln Agricultural Economics Department, the Center is one of four regional Extension Risk Management Education (ERME) Centers located throughout the country. ERME is funded through USDA’s National Institute of Food and Agriculture (NIFA) and was authorized by the Agricultural Risk Protection Act of 2000. The fundamental purpose of the ERME program is to educate producers to manage risk and position their farm or ranch for future growth and …

Autism Risk Gene Cul3 Alters Neuronal Morphology Via Caspase-3 Activity In Mouse Hippocampal Neurons, Qiang-Qiang Xia, Anju Singh, Jing Wang, Zhong Xin Xuan, Jeffrey D. Singer, Craig M. Powell

Biology Faculty Publications and Presentations

Autism Spectrum Disorders (ASDs) are neurodevelopmental disorders (NDDs) in which children display differences in social interaction/communication and repetitive stereotyped behaviors along with variable associated features. Cul3, a gene linked to ASD, encodes CUL3 (CULLIN-3), a protein that serves as a key component of a ubiquitin ligase complex with unclear function in neurons. Cul3 homozygous deletion in mice is embryonic lethal; thus, we examine the role of Cul3 deletion in early synapse development and neuronal morphology in hippocampal primary neuronal cultures. Homozygous deletion of Cul3 significantly decreased dendritic complexity and dendritic length, as well as axon formation. Synaptic spine density significantly …

Fireflies At Rpa Natural Area Final Report, Olivia H. Bush, Sydney M. Shea, Sofia J. Gordon, Nick S. Wiebke

Final Reports in ENST 411: Environmental Community Projects

Our group worked alongside community partners Shaunna Barnhart and Jim Dunn during the Spring 2024 semester to assist with their annual event Fireflies at RPA Natural Area. RPA Natural Area is a local park in South Williamsport, Pennsylvania that was recently acquired by Southside Recreational Authority. Since taking over the park, the organization has begun hosting an event each July to educate the general public about firefly biology and conservation by showing a film and guiding attendees through a firefly tour through the park. Our goals for this project included creating physical educational materials to be used at the park …