Digital Commons Network^™

Fatherhood And Psychobiology In The Philippines: Perspectives On Joint Profiles And Longitudinal Changes Of Fathers’ Estradiol And Testosterone, Lee T. Gettler, Patty X. Kuo, Sonny Agustin Bechayda

Department of Child, Youth, and Family Studies: Faculty Publications

Objectives: Research on the psychobiology of partnering and fathering has focused on testosterone (T), oxytocin, and prolactin (PRL) as mechanisms that potentially mediate life history trade-offs related to those roles. Less is known about other hormones that might be responsive to life history transitions and implicated in fathering, such as estradiol (E2). We examined how E2 changed during the transition to marriage and fatherhood, its correlation with fathers’ caregiving, and its joint within-individual production with other hormones (T, PRL). Methods: Data were collected from a total of 913 Filipino men (aged 25.9 years ± 0.3 SD at follow-up) enrolled in …

Triatomines: Trypanosomatids, Bacteria, And Viruses Potential Vectors? [Review], Caroline Barreto Vieira, Yanna Reis Praça, Kaio Luís Da Silva Bentes, Paula Beatriz Santiago, Sofia Marcelino Martins Silva, Gabriel Dos Santos Silva, Flávia Nader Motta, Izabela Marques Dorado Bastos, Jaime Martins De Santana, Carla Nunes De Araújo

Harold W. Manter Laboratory of Parasitology: Library Materials

Triatominae bugs are the vectors of Chagas disease, a major concern to public health especially in Latin America, where vector-borne Chagas disease has undergone resurgence due mainly to diminished triatomine control in many endemic municipalities. Although the majority of Triatominae species occurs in the Americas, species belonging to the genus Linshcosteus occur in India, and species belonging to the Triatoma rubrofasciata complex have been also identified in Africa, the Middle East, South-East Asia, and in the Western Pacific. Not all of Triatominae species have been found to be infected with Trypanosoma cruzi, but the possibility of establishing vector transmission …

Combining Mass Spectrometry And Nmr Improves Metabolite Detection And Annotation, Fatema Bhinderwala, Nishikant Wase, Concetta Dirusso, Robert Powers

Department of Biochemistry: Faculty Publications

Despite inherent complementarity, nuclear magnetic resonance spectroscopy (NMR) and mass spectrometry (MS) are routinely separately employed to characterize metabolomics samples. More troubling is the erroneous view that metabolomics is better served by exclusively utilizing MS. Instead, we demonstrate the importance of combining NMR and MS for metabolomics by using small chemical compound-treatments of Chlamydomonas reinhardtii as an illustrative example. A total of 102 metabolites were detected (82 by GC-MS, 20 by NMR and 22 by both techniques). Out of these 47 metabolites of interest were identified, where 14 metabolites were uniquely identified by NMR and 16 metabolites were uniquely identified …

Innovation In Pedagogy And Technology Symposium: University Of Nebraska, May 8, 2018, University Of Nebraska

Zea E-Books Collection

Selected Conference Proceedings, Presented by University of Nebraska Online and University of Nebraska Information Technology Services.

University of Nebraska Information Technology Services (NU ITS) and University of Nebraska Online (NU Online) present an education and technology symposium each spring. The Innovation in Pedagogy and Technology Symposium provides University of Nebraska (NU) faculty and staff the opportunity to learn from nationally recognized experts, share their experiences and learn from the initiatives of colleagues from across the system. This event is offered free to NU administrators, faculty and staff free of charge. Tuesday, May 8, 2018 The Cornhusker Marriott, Lincoln, NE

Technology …

Canavalia Gladiata And Dolichos Lablab Extracts For Sustainable Pest Biocontrol And Plant Nutrition Improvement In El Salvador, Carlos Martinez

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Botanical repellents and pesticides are now being rediscovered as new tools for integrated pest management in order to reduce the use of toxic chemicals in crop production. Canavalia gladiata and Dolichos lablab are two Fabaceae very well adapted to farmlands of El Salvador, effective as living barriers and mostly as cover crops, however, they are not yet very well disseminated. This document describes the potential for using the liquid extracts and the dry flour of raw seeds of those plants for economic benefit and practical convenience for pest management in Salvadorian agriculture under field conditions. Seed extracts were useful when …

Fungi: A Neglected Candidate For The Application Of Self-Healing Concrete, Congrui Jin, Rui Yu, Zhonghe Shui

Department of Civil and Environmental Engineering: Faculty Publications

Self-healing mechanism in concrete has been so far achieved mainly by three approaches: autogenous healing, encapsulation of polymeric material, and biologically induced mineralization of calcium carbonate. The microbial approach prevails over the other two approaches due to the high compatibility between the filler material and the concrete compositions. Although the term “microbe” refers to many different types of organisms, research work on self-healing concrete has been so far restricted to bacteria. In this perspective article, we review the current status of bacteria-mediated self-healing concrete and summarize the prospects for future advances. In particular, we point out that fungi may have …

A Novel Tetracycline-Responsive Transgenic Mouse Strain For Skeletal Muscle-Specific Gene Expression, Masahiro Iwata, Davis A. Englund, Yuan Wen, Cory M. Dungan, Kevin A. Murach, Ivan Jose Vechetti Jr, Christopher B. Mobley, Charlotte A. Peterson, John J. Mccarthy

Department of Nutrition and Health Sciences: Faculty Publications

Background: The tetracycline-responsive system (Tet-ON/OFF) has proven to be a valuable tool for manipulating gene expression in an inducible, temporal, and tissue-specific manner. The purpose of this study was to create and characterize a new transgenic mouse strain utilizing the human skeletal muscle α-actin (HSA) promoter to drive skeletal muscle-specific expression of the reverse tetracycline transactivator (rtTA) gene which we have designated as the HSA-rtTA mouse. Methods: To confirm the HSA-rtTA mouse was capable of driving skeletal muscle-specific expression, we crossed the HSA-rtTA mouse with the tetracycline-responsive histone H2B-green fluorescent protein (H2B-GFP) transgenic mouse in order to label myonuclei. Results: …

Multi-Element Fingerprinting Of Waters To Evaluate Connectivity Among Depressional Wetlands, Yuxiang Yuan, Xiaoyan Zhu, David M. Mushet, Marinus L. Otte

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Establishing the connectivity among depressional wetlands is important for their proper management, conservation and restoration. In this study, the concentrations of 38 elements in surface water and porewater of depressional wetlands were investigated to determine chemical and hydrological connectivity of three hydrological types: recharge, flow-through, and discharge, in the Prairie Pothole Region of North America. Most element concentrations of porewater varied significantly by wetland hydrologic type (p < 0.05), and increased along a recharge to discharge hydrologic gradient. Significant spatial variation of element concentrations in surface water was observed in discharge wetlands. Generally, higher element concentrations occurred in natural wetlands compared to wetlands with known disturbances (previous drainage and grazing). Electrical conductivity explained 42.3% and 30.5% of the variation of all element concentrations in porewater and surface water. Non-metric multidimensional scaling analysis showed that the similarity decreased from recharge to flowthrough to discharge wetland in each sampling site. Cluster analysis confirmed that element compositions in porewater of interconnected wetlands were more similar to each other than to those of wetlands located farther away. Porewater and surface water in a restored wetland showed similar multi-element characteristics to natural wetlands. In contrast, depressional wetlands connected by seeps along a deactivated drain-tile path and a grazed wetland showed distinctly different multi-element characteristics compared to other wetlands sampled. Our findings confirm that the multi-element fingerprinting method can be useful for assessing hydro-chemical connectivity across the landscape, and indicate that element concentrations are not only affected by land use, but also by hydrological characteristics.

Use Of Uv Treated Milk Powder To Increase Vaccine Efficacy In The Elderly, Sara Schaefer, Kasper Arthur Hettinga, James Cullor, J. Bruce German, University Of Nebraska - Lincoln

Department of Food Science and Technology: Faculty Publications

Aging populations experience a decline in adaptive immune system function also known as immunosenesence. Protein nutrition has been shown to stimulate and strengthen the immune system, and such approaches are needed for this growing segment of the population. A controlled, randomized, double blind pilot study was conducted to compare two different protein sources (soy and dairy) as nutritional supplementation to enhance vaccine response. Our objective was to examine the immune stimulating effects of dairy protein subjected to ultraviolet radiation (UV-C) radiation treatment process instead of pasteurization. Participants were 21 healthy individuals over 60 years of age who consumed 6 g …

Doing Well By Doing Good In The Fight Against Malnutrition And Hunger, Konstantinos Giannakas, Amalia Yiannaka

Cornhusker Economics

Technological innovation and the conduct of innovating firms are key weapons in the fight against hunger and the pursuit of food security around the world. Agricultural biotechnology seems uniquely equipped, if not destined, to spearhead the effort to combat malnutrition and hunger around the world by conferring significant agronomic benefits to producers and by having the ability to enhance both the resistance of plants to environmental stresses and the quality and nutritional value of food. Research that was recently published by the Center of Agricultural and Food Industrial Organization- Policy Research Group at the University of Nebraska Lincoln analyzes the …

Market Facilitation Program: Impact On Nebraska Corn And Soybean Producers, Anil Giri, E. Wesley F. Peterson

Cornhusker Economics

In July 2018, President Trump imposed a first round of 25-percent tariffs on Chinese electronics and high-tech equipment including automobiles, computer hard drives, and LEDs. The tariffs were imposed on roughly $34 billion worth of imported goods. In August 2018 additional 25-percent tariffs were imposed on $16 billion worth of Chinese exports to the United States and in September tariffs on $200 billion worth of Chinese exports to the United States were added. (Bradsher, 2018). The Trump Administration has also imposed automobile, steel and aluminum tariffs on imports from Canada, the European Union and other countries.

In response to the …

Nebline, October 2018

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Nebraska Extension’s CHIME program: Enhancing childcare professionals’ well-being with mindfulness

Food & Health

Farm & Acreage

Pests & Wildlife

Horticulture

Early Childhood

4-H & Youth

and other extension news and events

Health And Nutrition, Sydney Williams, Lauren Larson

Honors Program: Expanded Learning Clubs

The goal of this club was to inform and build upon the knowledge about health and nutrition of 4th and 5th graders. We did different activities to engage the children in a fun way of learning about health and nutrition so that it wouldn't feel like an extension of school.

Makerspace Club, Carolyn Brady

Honors Program: Expanded Learning Clubs

This is a unique club that allows children to explore the world around them and make projects using materials provided by educators, and to get children thinking about how things work in the world, and how they do. They gain knowledge about success and failure of these things by recreating them.

Art Club, Elizabeth Griggs

Honors Program: Expanded Learning Clubs

The goal of this art club is to introduce students to various painting techniques. This club is designed for those students who enjoy being creative and learning various painting techniques.

Girls Who Code 3rd-5th, Khristina Polivanov

Honors Program: Expanded Learning Clubs

The goal of the club is to encourage girls to be confident in themselves and their abilities while teaching them basic concepts used in computer science.

Nebraska’S Wildlife Club; Nebraska Honors Program Clc Expanded Learning Opportunity Clubs, Alexandrea E. Otto

Honors Program: Expanded Learning Clubs

The goal of the club is to educate and explore with students the wildlife and nature that surrounds them every day. The main focus was to educate students on wildlife native to Nebraska; ranging all the way from West Nebraska to the wildlife found in cities such as Lincoln.

The Future Is Now Science Club, Shane Stan

Honors Program: Expanded Learning Clubs

The Future is Now! What will our planet look like in 10, 20, 50, or even 100 years? Where will we live, what will we eat, how will we travel? Believe it or not, in the coming decades, many ideas that were once science fiction will come through to realization. With this, many of the discoveries and technologies making all of this happen are being developed right now as we go about our daily lives.

In this club, appropriately titled, The Future Is Now Science Club, students will be inspired to think larger about the present world they live in. …

Museum Exploration Club, Aurora Kenworthy

Honors Program: Expanded Learning Clubs

This club focuses on exploring topics in art, science, and history through a focus on museum exhibits.

Adventure Book Club, Rose Wehrman

Honors Program: Expanded Learning Clubs

Afterschool club that reads "The Boxcar Children" and integrates hands-on activities to help students connect to the story, think critically, and build interdisciplinary skills.

Effect Of Stocking Rate On Growing Juvenile Sunshine Bass, Morone Chrysops × M. Saxatilis, In An Outdoor Biofloc Production System, Bartholomew W. Green, Steven D. Rawles, Carl D. Webster, Matthew E. Mcentire

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

The biofloc technology production system is a production intensifying management strategy used primarily for culturing tilapia and penaeid shrimp, both of which can consume the biofloc. Other fish can be grown in biofloc systems because the biofloc serves to maintain water quality, metabolizing the ammonia excreted by intensively fed fish. A dose-response study was conducted in an outdoor biofloc system to begin quantifying the stocking rate-production function for sunshine bass, Morone chrysops x M. saxatilis, advanced fingerlings. Sunshine bass (2.9 ± 0.2 g/fish) were stocked into tanks at 50 to 250 fish/m² in 50 fish/m² increments. After …

Ready For The Robot: Bovines In The Integrated Circuit, Scout Calvert

University of Nebraska-Lincoln Libraries: Faculty Publications

Situating cows as co-laborers in global technology sectors, “Ready for the Robot” explores the predicament of cows working as robot operators, information workers, and data producers. The data cows produce shape the conditions in which they work, including their own bodies, as statistical evaluations of cattle abstract profitable traits and warp their connection to breed. Milking robots are posited as providing freedom to dairy cows, but this is far from guaranteed. Rather, cow bodies are programmed to fit the limitations of the robot and the routines of the automated farm, coding that breaches categories of breed. Drawing on Donna Haraway’s …

Mind The Gaps: How Can Food Safety Gaps Be Addressed In Developing Nations?, Jessie L. Vipham, Byron D. Chaves, Valentina Trinetta

Department of Food Science and Technology: Faculty Publications

As global food systems integrate, to meet the demands of a growing global population, safe and healthy agriculture value-chains will be essential to maintaining public health worldwide. In many ways, the current global food production landscape is made up of “mice and men.” Meaning that the food sector within and across most countries includes both large-scale corporate agriculture production and varying degrees of small-scale agriculture production; the variation being the interpretation of small scale, which is highly dependent upon the country. This structure presents challenges for the creation of effective food safety systems in many countries, and can contribute to …

Fueling Defense: Effects Of Resources On The Ecology And Evolution Of Tolerance To Parasite Infection, Sarah A. Budischak, Clayton E. Cressler

School of Biological Sciences: Faculty Publications

Resource availability is a key environmental constraint affecting the ecology and evolution of species. Resources have strong effects on disease resistance, but they can also affect the othermain parasite defense strategy, tolerance. A small but growing number of animal studies are beginning to investigate the effects of resources on tolerance phenotypes. Here, we review how resources affect tolerance strategies across animal taxa ranging from fruit flies to frogs to mice. Surprisingly, resources (quality and quantity) can increase or reduce tolerance, dependent upon the particular host-parasite system. To explore this seeming contradiction, we recast predictions of models of sterility tolerance and …

Comparison Of Maternal Beliefs About Causes Of Autism Spectrum Disorder And Association With Utilization Of Services And Treatments, Virginia Chaidez, Erik Fernandez Y Garcia, Lulu W. Wang, Kathleen Angkustsiri, Paula Krakowiak, Irva Hertz-Picciotto, Robin L. Hansen

Department of Nutrition and Health Sciences: Faculty Publications

Background: This study aimed to describe parental perceptions of the causes of autism spectrum disorder (ASD) in an ethnically diverse sample and explore whether these perceptions relate to treatment choices.

Methods: The sample consisted of White (n=224), Hispanic (n=85) and Asian (n=21) mothers of a child with ASD. A mixed methods approach was used in this secondary analysis focusing on parental perceptions about the causes of ASD and the relationship of these to utilization of services and treatment.

Results: Environmental and genetic factors were most often believed to be the cause or one of the causes of ASD by mothers …

Gamma Sigma Delta, Nebraska Chapter Newsletter, Issue #56 Fall 2018

Gamma Sigma Delta, Nebraska Chapter: Newsletters

Important dates

President's message, John Westra, Nebraska Chapter

Celebrating 100 years of recognizing excellence!

Welcome new members

Gamma Sigma Delta international scholarship awards

Recipients of 2017 Gamma Sigma Delta awards

Outstanding student recognition

In memoriam: Edwin J. Penas

In memoriam: Z. B.Mayo,Jr.

In memoriam: Richard L. "Dick" Fleming

In memoriam: Howard Warren Ottoson

In memoriam: Gary E. Varvel

Celebrating our centennial year, 1918-2018, Nebraska Chapter, Gamma Sigma Delta

2018 annual meeting minutes

Gamma Sigma Delta committees

Gamma Sigma Delta Outstanding Graduate Student Award fund

Gamma Sigma Delta, 2018 dues notice for Nebraska Chapter

Active members, Gamma Sigma Delta Nebraska Chapter …

Males And Females Evolve Riskier Traits In Populations With Eavesdropping Parasitoids, Oliver M. Beckers, William E. Wagner

School of Biological Sciences: Faculty Publications

Predation and/or parasitism often limits the evolution of conspicuous male traits and female preferences because conspicuous traits can attract predators or parasites and it is costly for females to associate with males that attract predators or parasites. As a result, males and females in high-risk populations are expected to evolve safer mating behaviors compared to individuals from low-risk populations. We tested this antagonistic selection hypothesis in the field cricket Gryllus lineaticeps. Males produce chirped songs, and both female crickets and the eavesdropping parasitoid fly Ormia ochracea prefer faster chirp rates. The flies attack the field crickets late in the …

The Efficacy Of A Diet Low In Fermentable Oligosaccharides, Disaccharides, Monosaccharides, And Polyols (Fodmaps) In The Treatment Of Irritable Bowel Syndrome, Raelyn Haubensak

Honors Program: Senior Projects (Public)

This paper reviews the efficacy of the low-FODMAP (Fermentable Oligosaccharides, Disaccharides, Monosaccharides, and Polyols) diet in treating the symptoms associated with irritable bowel syndrome (IBS). Since IBS has a wide range of etiologies and symptoms, it is often difficult to treat. A large majority of patients report their symptoms being associated with their diet. Researchers have shown that specific components of food, FODMAPs, may play a role in exacerbating symptoms. In this literary review, the physiological effects and the efficacy of the low-FODMAP diet was explored using current literature. In conclusion, the low-FODMAP diet may be an efficacious treatment option …

Improving The Interprofessional Relationship Between Nurses And Speech-Language Pathologists: A Pilot Study, Christina Hamling, Kristy Weissling

Honors Program: Senior Projects (Public)

The research presented in this thesis explores the impact of interprofessional education on undergraduate nursing and speech-language pathology students with an overall goal of improving the interprofessional relationship between the two fields. Utilizing quantitative and qualitative methods in the form of a pre-test, educational materials, live guided observation, and post-tests, the researchers found an increase in the nursing students ’ ability to identify the role of the speech-language pathologist in a medical setting (knowledge). There was also an increase in the speech-language pathology students’ ability to understand how and when to communicate with nurses in a medical setting (knowledge).

The Effect Of Ingredient-Specific Calorie Information On Calories Ordered, Christopher R. Gustafson, Eliana Zeballos

Department of Agronomy and Horticulture: Faculty Publications

Providing calorie labeling is a widely used strategy to combat obesity. However, there is little evidence that the availability of calorie information at food-away-from-home establishments has an effect on food choices. Listing calorie information for each ingredient, though, may allow customers to avoid high-calorie items that add little to their enjoyment. Data from a natural experiment were used to compare total calories ordered before and after the provision of per-ingredient versus for build-your-own sandwiches, and per-sandwich for pre-defined sandwiches, at a supermarket sandwich counter. Sandwich order slips from a Lincoln, Neb. supermarket were collected from December 15, 2016 to February …