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Effect Of Shot Peening On Stress Corrosion Behavior Of Biodegradable Magnesium We43, Tejaswita Patil

Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research

Conventionally used metals for orthopedic devices made of titanium, stainless steel, and Co-Cr alloys are designed to be permanently implanted. However, long-term complications arise and a secondary implant removal surgery is often necessary. A mismatch in stiffness between the bone and implant results in stress shielding that negatively affects bone density. To overcome these problems, magnesium alloys (e.g., WE34) are favored due to a lower Young’s modulus (45 GPa) and biodegradability. The critical technical barrier with magnesium alloys is their high corrosion rate in physiological (salt-based) environments. One solution is to use surface treatments, such as shot peening (SP), to …

Wetland Conservation Effects Result In Enhanced Playa Functionality In The Rainwater Basin, Nebraska, Hong Zhang

Community and Regional Planning Program: Theses

This study assessed the functionality level of wetland hydrology, hydrophyte and soil conditions, and then identified the restorable potential of conserved playas. The distribution of hydrology and hydrophyte were geospatially examined through annual tracking the quantity and quality of wetlands on historical hydric soil footprints under different conservation programs in the Rainwater Basin (RWB) in Nebraska, USA during 2004-2015. The results show that the historical hydric soil footprints with the conservation programs had significantly higher functionality of ponded water and hydrophyte than non-conserved wetlands. The yearly average of ponded water areas within footprints varies at 12.59% for the Waterfowl Production …

The Polyphyly Of Plasmodium: Comprehensive Phylogenetic Analyses Of The Malaria Parasites (Order Haemosporida) Reveal Widespread Taxonomic Conflict, Spencer C. Galen, Janus Borner, Ellen S. Martinsen, Juliane Schaer, Christopher C. Austin, Christopher J. West, Susan L. Perkins

Harold W. Manter Laboratory of Parasitology: Library Materials

The evolutionary relationships among the apicomplexan blood pathogens known as the malaria parasites (order Haemosporida), some of which infect nearly 200 million humans each year, has remained a vexing phylogenetic problem due to limitations in taxon sampling, character sampling and the extreme nucleotide base composition biases that are characteristic of this clade. Previous phylogenetic work on the malaria parasites has often lacked sufficient representation of the broad taxonomic diversity within the Haemosporida or the multi-locus sequence data needed to resolve deep evolutionary relationships, rendering our understanding of haemosporidian lifehistory evolution and the origin of the human malaria parasites incomplete. Here …

Energetic Tradeoffs Control The Size Distribution Of Aquatic Mammals, William Gearty, Craig R. Mcclain, Jonathan Payne

School of Biological Sciences: Faculty Publications

Four extant lineages of mammals have invaded and diversified in the water: Sirenia, Cetacea, Pinnipedia, and Lutrinae. Most of these aquatic clades are larger bodied, on average, than their closest land-dwelling relatives, but the extent to which potential ecological, biomechanical, and physiological controls contributed to this pattern remains untested quantitatively. Here, we use previously published data on the body masses of 3,859 living and 2,999 fossil mammal species to examine the evolutionary trajectories of body size in aquatic mammals through both comparative phylogenetic analysis and examination of the fossil record. Both methods indicate that the evolution of an aquatic lifestyle …

From Rain’S A-Gonna Fall To Bricks In The Wall: A Comparative Analysis Of Humanity’S Core Themes In The Music Of Bob Dylan And Pink Floyd, Alec Williams

Honors Program: Senior Projects (Public)

The 1960s were turbulent times of musical creation and revolution. From Motown to Dinkytown, the world suddenly became filled with blooms of creativity that stemmed from the freshly planted roots rock ‘n’ roll. Artists that garnered infamy in this flourishing era, including household names like Jimi Hendrix, The Beatles, and Janis Joplin, would become immortalized in music and pop culture. However, few stand out as pinnacle lyrical and musical influences, devout to the art of perpetual creation and development of the global music scene. Of those artists, Bob Dylan and Pink Floyd have contributed immensely to the synthesis of genres …

Free Medical Clinics In America, Amanda Golden

Honors Program: Senior Projects (Public)

The issue of healthcare in the United States of America continues to be a hot-button issue for millions of Americans and the politicians representing them in Washington D.C. The cost of healthcare continues to rise, population size within the country is continuously increasing, and the number of individuals lacking access to quality healthcare grows more and more everyday.

In this environment, understanding the role of free clinics in a community and how these clinics are maintained is becoming increasingly important. In this paper, I will outline the history of free clinics, who runs them and why. I will then provide …

"I Never Expected This": Expectancy Violations And Stress In Millennials, Sarah Pogue

Honors Program: Senior Projects (Public)

Millennials are said to be the most stressed out age group in the United States (Coccia, & Darling, 2016). Between general life stressors and the new stress that has emerged due to the increase in technology and social communication, millennials are simply overloaded with stress from all angles. In order to communicate and make sense of this stress, most millennials find themselves discussing these stressful events with their close friends. In fact, according to Jody Koenig Kellas, Haley Kranstuber Horstman, Erin K. Willer, and Kirsten Car (2015), 95% of people tell stories about stressful events soon after they occur to …

Recovering Parasites From Mummies And Coprolites: An Epidemiological Approach, Morgana Camacho, Adauto Araújo, Johnica J. Morrow, Jane E. Buikstra, Karl Reinhard

Karl Reinhard Publications

In the field of archaeological parasitology, researchers have long documented the distribution of parasites in archaeological time and space through the analysis of coprolites and human remains. This area of research defined the origin and migration of parasites through presence/absence studies. By the end of the 20th century, the field of pathoecology had emerged as researchers developed an interest in the ancient ecology of parasite transmission. Supporting studies were conducted to establish the relationships between parasites and humans, including cultural, subsistence, and ecological reconstructions. Parasite prevalence data were collected to infer the impact of parasitism on human health. In the …

Effects Of Preovulatory Estradiol On Uterine Environment And Conceptus Survival From Fertilization To Maternal Recognition Of Pregnancy, Emmalee J. Northrop, Jerica J.J. Rich, Robert A. Cushman, Anthony K. Mcneel, Emerson M. Soares, Kelsey Brooks, Thomas E. Spencer, George Perry

Roman L. Hruska U.S. Meat Animal Research Center: Reports

Preovulatory estradiol is known to impact embryo quality and survival. The objective of this study was to determine the effects of preovulatory estradiol on the uterine environment and conceptus survival through maternal recognition of pregnancy. Beef cows/heifers were AIed following induced ovulation. Cows were grouped into high and low preovulatory estradiol. Conceptuses were collected on day 16 nonsurgically (Rep 1; n = 20), or following slaughter (Rep 2; n = 29). Blood was collected to determine plasma glucose concentrations, and uterine luminal fluid (ULF) was analyzed for protein, glucose, and interferon tau (IFNT) concentrations. Total cellular RNA was extracted from …

Changes In Myoblast Responsiveness To Tnfα And Il-6 Contribute To Decreased Skeletal Muscle Mass In Intrauterine Growth Restricted Fetal Sheep, Robert J. Posont, Kristin A. Beede, Sean W. Limesand, Dustin T. Yates

Department of Animal Science: Faculty Publications

Intrauterine growth restriction (IUGR) is a leading cause of perinatal morbidity and mortality (Alisi et al., 2011). Skeletal muscle growth is disproportionately reduced in IUGR fetuses and offspring (Padoan et al. 2004; Yates et al. 2014). These individuals present with reduced muscle mass and increased risk for metabolic disorders at all stages of life (Godfrey and Barker, 2000; Yates et al. 2016.). Muscle growth requires proliferation, differentiation, and fusion of myoblasts (muscle stem cells) to form muscle fibers early in gestation and to increase myonuclear content of existing fibers during late gestation and after birth (Yates et al., 2014). These …

Impaired Muscle Stem Cell Function In Cows With High Concentrations Of Androstenedione In Their Follicular Fluid, Taylor L. Barnes, Kiristen A. Beede, Elena M. Merrick, Caitlin N. Cadaret, Andrea S. Cupp, Dustin T. Yates

Department of Animal Science: Faculty Publications

It is unclear whether androstenedione (A4) increases muscle mass and strength similar to testosterone or whether it produces primarily catabolic effects on muscle-like estrogen (Rasmussen et al., 2000). Summers et al. (2014) observed two populations of cows that exhibit either high (>40 ng/mL; High A4) or low (<20 ng/mL; Low A4) concentrations of A4 within the fluid of the dominant follicle just prior to ovulation. High A4 cows had decreased reproductive rates and shorter times before falling out of the herd, but those that did produce calves weaned them ~10-kg heavier than their low A4 counterparts (Summers et al., 2014). It appears that the difference in weights is due to faster growing and more efficient skeletal muscle. High A4 cows share many characteristics with women suffering from polycystic ovary syndrome (PCOS), whose high levels of circulating androgens are associated with changes in body composition (Kirchengast and Huber, 2001).

Dynamic Classification Of Moisture Stress Using Canopy And Leaf Temperature Responses To A Step Changes Of Incident Radiation, Erin E. Stevens, George E. Meyer, Ellen T. Paparozzi

Honors Program: Senior Projects (Public)

Environmental conditions affect plant productivity and understanding how plants respond to drought stress can be measured in different ways. This study focused on measuring leaf response time to induced water stress. Leaf response time to a step increase and step decrease in radiation was computed for four species of well-watered and water-stressed plants in a controlled environment. The canopy temperature was measured with an infrared thermometer and a thermal imaging camera. Thermal images were analyzed to determine the average temperature of a selected single, unobstructed leaf at the top of the canopy. Both the canopy response time and the single …

Imidacloprid Sorption And Transport In Cropland, Grass Buffer, And Riparian Buffer Soils, Laura E. Satkowski, Keith W. Goyne, Stephen H. Anderson, Robert N. Lerch, Elisabeth B. Webb, Daniel D. Snow

Daugherty Water for Food Global Institute: Faculty Publications

An understanding of neonicotinoid sorption and transport in soil is critical for determining and mitigating environmental risk associated with the most widely used class of insecticides. The objective of this study was to evaluate mobility and transport of the neonicotinoid imidacloprid (ICD) in soils collected from cropland, grass vegetative buffer strip (VBS), and riparian VBS soils. Soils were collected at six randomly chosen sites within grids that encompassed all three land uses. Single-point equilibrium batch sorption experiments were conducted using radio-labeled (¹⁴C) ICD to determine solid–solution partition coefficients (K_d). Column experiments were conducted using soils collected …

Concepts In Animal Parasitology: Information For Authors [Slides], Sue Ann Gardner, Scott Lyell Gardner

Concepts in Animal Parasitology

Broadcast via Zoom live online, the following are the slides from an information session held for authors and reviewers of the Concepts in Animal Parasitology textbook. The work will be written collaboratively and published in 2024 as an open educational resource under a CC BY-NC-SA 4.0 International license.

Natural Semantic Metalanguage: Primes, Universals, And Syntax With Data From The Semantic Field Grace In The Old Testaments Of The King James Bible And Martin Luther’S German Bible, Mary K. Bolin

University of Nebraska-Lincoln Libraries: Faculty Publications

This paper examines the use of "Semantic Primes" or "Natural Semantic Metalanguage" (NSM) as developed by Wierzbicka and Goddard, comparing it with other techniques of semantic analysis and applying to the semantic field "Grace" as defined by Bolin (1999) in the King James English Bible and Luther's German Bible.

Performance And Carcass Characteristics Of Steers Fed With Two Levels Of Metabolizable Energy Intake During Summer And Winter Season, R A. Arias, J P. Keim, M Gandarillas, A Velasquez, C Alvarado-Gilis, T L. Mader

Department of Animal Science: Faculty Publications

Climate change is producing an increase on extreme weather events around the world such as flooding, drought and extreme ambient temperatures impacting animal production and animal welfare. At present, there is a lack of studies addressing the effects of climatic conditions associated with energy intake in finishing cattle in South American feed yards. Therefore, two experiments were conducted to assess the effects of environmental variables and level of metabolizable energy intake above maintenance requirements (MEI) on performance and carcass quality of steers. In each experiment (winter and summer), steers were fed with 1.85 or 2.72 times of their requirements of …

T.D.A. Cockerell (1866–1948) Of The University Of Colorado: His Contributions To The Natural History Of The California Islands And The Establishment Of Channel Islands National Monument, Daniel R. Muhs

United States Geological Survey: Staff Publications

Theodore Dru Alison Cockerell was a naturalist at the University of Colorado from 1904 to 1947 and studied botany, zoology, and paleontology in North and South America, Asia, Australia, Africa, and Europe. In the latter part of his career, he studied the California islands and published many papers on their natural history, 16 of them in four years (1937–1940). He made important contributions to the natural history of the islands in four distinct ways: entomology of the islands, including identification of a number of new species of bees; discovery of fossil marine invertebrate faunas and recognition that the zoogeography of …

Comparing Crop Growth And Carbon Budgets Simulated Across Ameriflux Agricultural Sites Using The Community Land Model (Clm), Ming Chen, Timothy J. Griffis, John M. Baker, Jeffrey D. Wood, Tilden Meyers, Andrew E. Suyker

School of Natural Resources: Faculty Publications

Improvement of process-based crop models is needed to achieve high fidelity forecasts of regional energy, water, and carbon exchanges. However, most state-of-the-art Land Surface Models (LSMs) assessed in the fifth phase of the Coupled Model Inter-comparison project (CMIP5) simulated crops as unmanaged C3 or C4 grasses. This study evaluated the crop-enabled version of one of the most widely used LSMs, the Community Land Model (CLM4- Crop), for simulating corn and soybean agro-ecosystems at relatively long-time scales (up to 11 years) using 54 site-years of data. We found that CLM4-Crop had a biased phenology during the early growing season and that …

Cyberbiosecurity: An Emerging New Discipline To Help Safeguard The Bioeconomy, Randall S. Murch, William K. So, Wallace G. Buchholz, Sanjay Raman, Jean Peccoud

Department of Chemical and Biomolecular Engineering: Faculty Publications

Cyberbiosecurity is being proposed as a formal new enterprise which encompasses cybersecurity, cyber-physical security and biosecurity as applied to biological and biomedical-based systems. In recent years, an array of important meetings and public discussions, commentaries and publications have occurred that highlight numerous vulnerabilities. While necessary first steps, they do not provide a systematized structure for effectively promoting communication, education and training, elucidation and prioritization for analysis, research, development, test and evaluation and implementation of scientific, technological, standards of practice, policy, or even regulatory or legal considerations for protecting the bioeconomy. Further, experts in biosecurity and cybersecurity are generally not aware …

The Only Way Forward, Michael Reed

Department of English: Dissertations, Theses, and Student Research

The Only Way Forward is a creative thesis with a combination of Poetry and Fiction. There is a short introduction that shows the form and styles Michael has used as well as his back story into the creative writing world. He talks about many different authors that have helped him through his journey as well as many other peers and mentors. His biggest take away with his education is to “Just Keep Writing.”

New Contributions To The Knowledge Of Chinese Flea Beetle Fauna (Iii): Revision Of Meishania Chen & Wang With Description Of Five New Species (Coleoptera: Chrysomelidae: Galerucinae), Yongying Ruan, Alexander S. Konstantinov, Kaniyarikkal Divakaran Prathapan, Menga Zhang, Shihong Jiang, Xing‐Ke Yang

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

The flea beetle genus Meishania Chen & Wang is revised and five new species—M. cangshanensis sp. nov., M. flavipen- nis sp. nov., M. fulvotigera sp. nov., and M. sichuanica sp. nov. from China and M. bhutanensis sp. nov. from Bhutan— are described. All species of Meishania are illustrated and a key to species is provided.

Center For Grassland Studies, Volume 24, Issue 1, Spring 2018

Center for Grassland Studies: Newsletters

Dr. Jennifer McClure Discusses Beef Genetics

Director's Comments

April 4 Field Day Offered by ENREC

GLS Club Offices Selected

Agronomy and Horticulture Seminar Series

Range Management and GLS Recognition Banquet Set

Grazing Cover Crops throughout Nebraska

Range Management Club Attends Annual SRM Meeting

PGAM Alums Garner Awards

New Stout Fund Honors Grassland Heritage

Goetsch Receives Horton Smith Award

Stephenson Honored with Two Awards

CGS Open House Recognized December Graduates

PGA Golf Management by the Numbers

PGAM Annual Spring Scramble Fundraiser Set

Nebline, April 2018

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Can You Pass This Food Safety Quiz?

Food & Health

Farm & Acreage

Pests & Wildlife

Horticulture

Early Childhood

4-H & Youth

and other extension news and events

Special Pullout Section: Weed Awareness

Primary Atmospheric Drivers Of Pluvial Years In The United States Great Plains, Paul Flanagan, Jeffrey B. Basara, Jason C. Furtado, Xiangming Xiao

High Plains Regional Climate Center: Staff Publications

Precipitation variability has increased in recent decades across the Great Plains (GP) of the United States. Drought and its associated drivers have been studied in the GP region; however, periods of excessive precipitation (pluvials) at seasonal to interannual scales have received less attention. This study narrows this knowledge gap with the overall goal of understanding GP precipitation variability during pluvial periods. Through composites of relevant atmospheric variables from the ECMWF twentieth-century reanalysis (ERA-20C), key differences between southern Great Plains (SGP) and northern Great Plains (NGP) pluvial periods are highlighted. The SGP pluvial pattern shows an area of negative height anomalies …

Fish & Wildlife News: Spring 2018, Matt Trott

Fish and Wildlife News

No abstract provided.

Intraperitoneal Nanotherapy For Metastatic Ovarian Cancer Based On Sirna-Mediated Suppression Of Dj-1 Protein Combined With A Low Dose Of Cisplatin, Canan Schumann, Stephanie Chan, Jess A. Miller, Yuliya Bortnyak, Katherine Carey, Alex Fedchyk, Leon Wong, Tetiana Korzun, Abraham S. Moses, Anna Lorenz, Delany Shea, Olena Taratula, Oleh Khalimonchuk, Oleh Taratula

Department of Biochemistry: Faculty Publications

Herein, we report an efficient combinatorial therapy for metastatic ovarian cancer based on siRNA-mediated suppression of DJ-1 protein combined with a low dose of cisplatin. DJ-1 protein modulates, either directly or indirectly, different oncogenic pathways that support and promote survival, growth, and invasion of ovarian cancer cells. To evaluate the potential of this novel therapy, we have engineered a cancer-targeted nanoplatform and validated that DJ-1 siRNA delivered by this nanoplatform after intraperitoneal injection efficiently downregulates the DJ-1 protein in metastatic ovarian cancer tumors and ascites. In vivo experiments revealed that DJ-1 siRNA monotherapy outperformed cisplatin alone by inhibiting tumor growth …

Evaluation Of A Hybrid Reflectance-Based Crop Coefficient And Energy Balance Evapotranspiration Model For Irrigation Management, J. Burdette Barker, Christopher M. U. Neale, Derek M. Heeren, Andrew E. Suyker

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Accurate generation of spatial soil water maps is useful for many types of irrigation management. A hybrid remote sensing evapotranspiration (ET) model combining reflectance-based basal crop coefficients (K_cbrf) and a two-source energy balance (TSEB) model was modified and validated for use in real-time irrigation management. We modeled spatial ET for maize and soybean fields in eastern Nebraska for the 2011-2013 growing seasons. We used Landsat 5, 7, and 8 imagery as remote sensing inputs. In the TSEB, we used the Priestly-Taylor (PT) approximation for canopy latent heat flux, as in the original model formulations. We also used the …

Journal Of The National Collegiate Honors Council, Vol. 19, No. 1 (Spring/Summer 2018): Forum On Honors And Social Justice, National Collegiate Honors Council

Journal of the National Collegiate Honors Council Online Archive

Call for Papers

Editorial Policy, Deadlines, and Submission Guidelines

Dedication to Jack W. Rhodes

Editor’s Introduction — Ada Long

Forum on “Honors And Social Justice”

Thinking Critically, Acting Justly . — Naomi Yavneh Klos

Making Honors Success Scripts Available to Students from Diverse Backgrounds — Richard Badenhausen

Cultivating Empathy: Lessons from an Interdisciplinary Service-Learning Course — Megan Jacobs and Marygold Walsh-Dilley

Socioeconomic Equity in Honors Education: Increasing Numbers of First-Generation and Low-Income Students — Angela D. Mead

Social Justice Education in Honors: Political but Non-Partisan — Sarita Cargas

Research Essays

What Makes a Curriculum Significant? Tracing the Taxonomy …

Editorial Matter: Jnchc 19:1 (Spring/Summer 2018)

Journal of the National Collegiate Honors Council Online Archive

Cover

Masthead

Indexing Statement

Production Editors

Editorial Board

Contents

Call for Papers

Editorial Policy

Deadlines

Submission Guidelines

Dedication -- Jack W. Rhodes, The Citadel

Forum on Honors and Social Justice

About the Authors

About the NCHC Monograph Series

NCHC Monographs & Journals

NCHC Publications Order Form

Back cover

ISBN 978-0-9911351-9-6

The Omaha Barometer, Eric Thompson

Bureau of Business Research Publications

The 2018 Barometer compares the economic performance and characteristics of the Omaha - Council Bluffs - Fremont metro with nine other metros to reveal strengths and opportunities for growth. Omaha continues to perform competitively when compared with these high-performing metros and has a strong advantage in entrepreneurship, business costs, and aspects of growth and quality of life.