Digital Commons Network^™

Toxic And Repellent Effects Of Pyrethroids Used In Orchards On The Honey Bee, Apis Mellifera L. (Hymenoptera: Apidae), Erin M. Ingram

Department of Entomology: Dissertations, Theses, and Student Research

Managed honey bee colonies provide valuable pollination services and are rented by fruit orchards to improve fruit quality and yield. The placement of colonies in this agricultural setting increases the possibility of exposure to pyrethroids used for broad-spectrum pest control in orchards. Although highly toxic to bees, pyrethroids are believed to pose a relatively low hazard due to their low application rates in the field as well as their contact repellent properties. Previous studies have noted a decrease in foraging visits following pyrethroid application possibly preventing bees from acquiring a lethal dose in the field.

This research quantified behaviors associated …

Development Of Food Safety Education And Pilot Study Specifically For Native Americans Audiences, Kristine M. Foley

Department of Nutrition and Health Sciences: Dissertations, Theses, and Student Research

The purpose of this study was to develop and implement a culturally appropriate food safety educational program using the conceptual change teaching method while preparing a meal. The food safety educational program was based on the FightBac!™ concepts (CLEAN, SEPARATE, COOK AND CHILL). Quantitative and qualitative date were collected, compared, and analyzed. Two pilot studies were conducted with Native American participants on non-reservation sites in Omaha and Lincoln. A total of 27 participants completed a pre and post knowledge survey and were video recorded preparing a meal. The majority of the participants were female (78%), had at least a high …

Plasma Antibodies To Oral Bacteria And Risk Of Pancreatic Cancer In A Large European Prospective Cohort Study, Dominique S. Michaud, Jacques Izard, Charlotte S. Wilhelm-Benartzi, Doo-Ho You, Verena A. Grote, Anne Tjønneland, Christina C. Dahm, Kim Overvad, Mazda Jenab, Veronika Fedirko, Marie Christine Boutron-Ruault, Françoise Clavel- Chapelon, Antoine Racine, Rudolf Kaaks, Heiner Boeing, Jana Foerster, Antonia Trichopoulou, Pagona Lagiou, Dimitrios Trichopoulos, Carlotta Sacerdote, Sabina Sieri, Domenico Palli, Rosario Tumino, Salvatore Panico, Peter Siersema, Petra Hm Peeters, Eiliv Lund, Aurelio Barricarte, José-María Huerta, Esther Molina-Montes, Miren Dorronsoro, J. Ramón Quirós, Eric J. Duell, Weimin Ye, Malin Sund, Björn Lindkvist, Dorthe Johansen, Kay-Tee Khaw, Nick Wareham, Ruth C. Travis, Paolo Vineis, H. Bas Bueno-De-Mesquita, Elio Riboli

Department of Food Science and Technology: Faculty Publications

Objective: Examine the relationship between antibodies to 25 oral bacteria and pancreatic cancer risk in a prospective cohort study.

Design: We measured antibodies to oral bacteria in prediagnosis blood samples from 405 pancreatic cancer cases and 416 matched controls, nested within the European Prospective Investigation into Cancer and Nutrition study (EPIC). Analyses were conducted using conditional logistic regression and additionally adjusted for smoking status and body mass index.

Results: Individuals with high levels of antibodies against Porphyromonas gingivalis ATTC 53978, a pathogenic periodontal bacteria, had a 2-fold higher risk of pancreatic cancer than individuals lower levels of …

Optimal Copper Supply Is Required For Normal Plant Iron Deficiency Responses, Brian M. Waters, Laura C. Armbrust

Department of Agronomy and Horticulture: Faculty Publications

Iron (Fe) and copper (Cu) homeostasis are tightly linked across biology. Understanding crosstalk between Fe and Cu nutrition could lead to strategies for improved growth on soils with low or excess metals, with implications for agriculture and phytoremediation. Here, we show that Cu and Fe nutrition interact to increase or decrease Fe and/or Cu accumulation in leaves and Fe uptake processes. Leaf Cu concentration increased under low Fe supply, while high Cu lowered leaf Fe concentration. Ferric reductase activity, an indicator of Fe demand, was inhibited at insufficient or high Cu supply. Surprisingly, plants grown without Fe were more susceptible …

Remote Estimation Of Nitrogen And Chlorophyll Contents In Maize At Leaf And Canopy Levels, Michael Schlemmer, Anatoly A. Gitelson, James S. Schepers, Richard B. Ferguson, Y. Peng, J. Shanahan, Donald Rundquist

Department of Agronomy and Horticulture: Faculty Publications

Leaf and canopy nitrogen (N) status relates strongly to leaf and canopy chlorophyll (Chl) content. Remote sensing is a tool that has the potential to assess N content at leaf, plant, field, regional and global scales. In this study, remote sensing techniques were applied to estimate N and Chl contents of irrigated maize (Zea mays L.) fertilized at five N rates. Leaf N and Chl contents were determined using the red-edge chlorophyll index with R2 of 0.74 and 0.94, respectively. Results showed that at the canopy level, Chl and N contents can be accurately retrieved using green and red-edge Chl …

Investigation Of Commercial Milk Enzyme-Linked Immunosorbent Assay (Elisa) Kits: Specificity And Utility For Residues Of Foods Subjected To Proteolysis During Processing, Katherine O. Ivens

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Analytical methods, such as enzyme-linked immunosorbent assays (ELISA), are used to detect and quantify residues from allergenic sources in food products. However, ELISAs have not been validated for use in foods that have been exposed to proteolysis. This thesis explores the specificities, sensitivities, and capabilities of commercially-available milk ELISA kits for detecting milk residues in cheeses that have undergone varying degrees of proteolysis.

The specificity, accuracy, and consistency of twelve commercially-available milk ELISA kits for individual milk proteins and commonly used milk-derived ingredients, including α-,β-, and κ-casein, β-lactoglobulin, α-lactalbumin, non-fat dry milk, sodium caseinate, and whey protein concentrate were evaluated. …

Elements: Elementary Teachers Of Science – Building Collaborations Between Content And Pedagogy Communities, Krista Adams, Jenny Melander

Discipline-Based Education Research Group Speaker Series

The current UNL elementary teaching program does not include a science methods practicum in which pre‐service elementary teachers could observe and teach reformed based science lessons in the classroom setting. The science methods course was modified during Spring 2013 to address this missing component. The exploratory course engages pre‐service teachers in designing and implementing a science unit (a series of lessons) to be taught as a science club in an after school program for K – 5th grade students. In Fall 2013, the course experiences expanded to include collaborating with biomedical engineering students in connecting real‐world applications to teaching science. …

Response Of Near-Isogenic Sorghum Lines, Differing At The P Locus For Plant Colour, To Grain Mould And Head Smut Fungi, Deanna L. Funnell-Harris, L. K. Prom, Scott E. Sattler, Jeffrey F. Pedersen

Department of Plant Pathology: Faculty Publications

Leaves and stalks of many sorghum genotypes accumulate dark red or purple pigments upon wounding while some plants, called ‘tan,’ do not. Grains with unpigmented ‘white’ pericarps grown on tan plants are more desirable for food. The hypothesis tested was that pigments in plants protected grain against the panicle diseases grain mould and head smut. Near-isogenic tan or purple plant color genotypes with white grain were planted at Lincoln and Ithaca, NE and Corpus Christi, TX. The field grown grain was plated onto semi-selective media to detect the presence of grain colonisation by mould genera Alternaria, Fusarium and Curvularia. …

Health And Nutrition Education In Czech Republic (Poster), Jana Koptíková

The Nebraska Educator: A Student-Led Journal

ABSTRACT

The average one-year health expenditure per capita in the European member states has doubled in the last 15 years. Prevention is less expensive than treatment, and changes in diet and lifestyle remain the most effective way to reduce the financial health care costs. However, European health systems are primarily treatment systems, not preventive systems. Improper diet and lack of physical activity are the most critical factors contributing to the overweight and obesity pandemic. Along with heavy alcohol consumption and smoking, these four factors contribute the most to the development of chronic non-communicable diseases. These diseases kill more than 36 …

The Curriculum Of Health And Nutrition Education In Czech Republic (Article), Jana Koptíková

The Nebraska Educator: A Student-Led Journal

ABSTRACT

The average one-year health expenditure per capita in the European member states has doubled in the last 15 years. Prevention is less expensive than treatment, and changes in diet and lifestyle remain the most effective way to reduce the financial health care costs. However, European health systems are primarily treatment systems, not preventive systems. Improper diet and lack of physical activity are the most critical factors contributing to the overweight and obesity pandemic. Along with heavy alcohol consumption and smoking, these four factors contribute the most to the development of chronic non-communicable diseases. These diseases kill more than 36 …

Food Safety Education Cube For Native Americans, Kelsey Crews Bair, Rachel C. Sinley, Julie A. Albrecht

RURALS: Review of Undergraduate Research in Agricultural and Life Sciences

Foodborne illnesses impact millions of individuals each year, with young children at high risk of contracting such diseases. Many of these pathogens responsible for these illnesses can be destroyed with proper food handling techniques. Research has shown there is a need for improved food safety education among the general public. This project sought to increase food safety knowledge by developing a food safety educational tool that expands on current meat handling information. A “Food Safety Cube” was developed that expands on the current Food Safety and Inspection Service (FSIS) “Safe Handling Instructions” label. This tool was positioned throughout several high …

Childcare And Youth Training And Technical Assistance Project (Cyttap) November 2013 Evaluation Report, Kit Alviz, Tonia Durden

Nebraska Center for Research on Children, Youth, Families, and Schools: Faculty Publications

The Childcare and Youth Training and Technical Assistance Project (CYTTAP) works to improve the quality and quantity of child care in states with high densities of off-installation military families. From November 2011 through October 2013, childcare providers and early childhood education professionals attended face-to-face trainings, train-the-trainer events, and low- or no-cost online trainings. Trainings included Better Kid Care (face-to-face trainings covering a wide range of topics including partnerships with parents, health and safety, nutrition and physical activity, and curriculum planning); I Am Moving, I Am Learning (face-to-face training to prevent childhood obesity); and Rock Solid Foundations (a series of programs …

Body Esteem, Peer Difficulties, And Perceptions Of Physical Health In Overweight And Obese Urban Children Ages 5 To 7 Years, Natalie A. Williams, Jennifer Fournier, Mace Coday, Phyllis A. Richey, Frances A. Tylavsky, Marion E. Hare

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

Objective—To determine whether there is an association between body mass index (BMI) and body esteem in young overweight and obese urban children, and to test peer relationship difficulties and perceived physical health as mediators of this relationship.

Methods—Child self-reported body esteem, and parent-reported child peer relationship difficulties (being bullied by peers and peer rejection) and physical health perceptions were obtained from 218 overweight and obese children ages 5–7 years (81% racial/ethnic minority, M BMI = 25.3) and their primary caregivers.

Results—Higher BMI was associated with lower body esteem for both girls and boys. This relation was mediated …

Adipose And Muscle Tissue Gene Expression Of Two Genes (Ncapg And Lcorl) Located In A Chromosomal Region Associated With Cattle Feed Intake And Gain, Amanda K. Lindholm-Perry, Larry Kuehn, William T. Oliver, Andrea K. Sexten, Jeremy R. Miles, Lea Ann Rempel, R. A. Cushman, Harvey C. Freetly

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

A region on bovine chromosome 6 has been implicated in cattle birth weight, growth, and length. Non-SMC conodensin I complex subunit G (NCAPG) and ligand dependent nuclear receptor corepressor-like protein (LCORL) are positional candidate genes within this region. Previously identified genetic markers in both genes were associated with average daily gain (ADG) and average daily feed intake (ADFI) in a crossbred population of beef steers. These markers were also associated with hot carcass weight, ribeye area and adjusted fat thickness suggesting that they may have a role in lean muscle growth and/or fat deposition. The purpose …

Evaluation Of Nutrition And Physical Activity Curricula Based On The Social Cognitive Theory, Elisha Hall, Julie A. Albrecht, Weiwen Chai, Alyssa Vierregger, Johnna Hall, Wanda Koszewski

The Nebraska Educator: A Student-Led Journal

Background: Childhood obesity has increased over the past two decades, causing numerous complications. Currently, there is no required standardized curriculum for nutrition/physical activity in the United States. The objective of the current study is to examine the effects of a three-week, social cognitive theory-based nutrition/physical activity curricula on changes of behaviors among 5th grade students.

Methods: This study will be conducted in Lincoln Public Schools, involving three phases:
Phase 1: A Social Cognitive Theory based survey measuring behavior change, knowledge, self-efficacy, and environment will be developed and validated using eight nutrition experts. The survey will be pilot tested with a …

Cehs Student Research Conference Program

The Nebraska Educator: A Student-Led Journal

Welcome – Dr. Jon Pedersen

Keynote Address: Dr. Kenneth Howe, University of Colorado, Boulder.

Poster Session

Paper Sessions

Panel Sessions

Graduate Student Awards and Presentations

Student Panel: Advice for Beginning Graduate Students

Cehs Student Research Conference Program--Abstracts

The Nebraska Educator: A Student-Led Journal

Papers and Panels

Posters

Nebline, November-December 2013

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Family and Couple Strengths: Getting Connected, Staying Connected

Farm Views

Urban Agriculture

Food & Fitness

Home & Family Living

Horticulture

Environmental Focus

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

Understanding The Process By Which A Healthy Population Seeks Nutrition And Exercise Information, Sally Hillis

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Faced with an overwhelming amount of available sources and different perspectives, researchers in the field of Nutrition and Health Sciences continually strive to identify key factors that shape a healthy lifestyle. Employing a qualitative methods design, this pilot study research project utilized a constructivist grounded theory approach to develop a model explaining the process by which healthy individuals acquire nutrition and exercise information. This model rests on the philosophical views and actions of participants in seeking meaningful and reliable sources guiding their decision-making strategies and offers a more complete understanding of this process. Implications of this research would be to …

Passionate Pedagogy And Emotional Labor: Students’ Responses To Learning Diversity From Diverse Instructors, April Schueths, Tanya Gladney, Devan Crawford, Katherine L. Bass, Helen A. Moore

Department of Sociology: Faculty Publications

This qualitative study examines emotional themes in student evaluations from required diversity courses at a predominately white, US public university. We analyzed two years of student evaluations from 29 instructors. Situated by the work of Acker, Jaggar and Hochschild, we find contradictory themes of perceived instructional bias and the balue of diversity lessons. Student evaluations resulted in systematic disadvantage for minority instructors that may be heightened for female instructors of color. Non-minority faculty (both male and female) gain privileges by avoiding dealing with diversity directly, which is reflected in student evaluations through the process of "ducking diversity." The organizational structure …

Lifestyle, Dietary Factors, And Antibody Levels To Oral Bacteria In Cancer-Free Participants Of A European Cohort Study, Dominique S. Michaud, Jacques Izard, Zachary Rubin, Ingegerd Johansson, Elisabete Weiderpass, Anne Tjønneland, Anja Olsen, Kim Overvad, Marie Christine Boutron-Ruault, Françoise Clavel-Chapelon, Laure Dossus, Rudolf Kaaks, Verena A. Katzke, Heiner Boeing, Jana Foerster, Antonia Trichopoulou, Androniki Naska, Giana Ziara, Paolo Vineis, Sara Grioni, Domenico Palli, Rosario Tumino, Amalia Mattiello, Petra Hm Peeters, Peter D. Siersema, Aurelio Barricarte, José-María Huerta, Esther Molina-Montes, Miren Dorronsoro, J. Ramón Quirós, Eric J. Duell, Bodil Ohlsson, Bengt Jeppsson, Anders Johansson, Pernilla Lif, Kay-Tee Khaw, Nick Wareham, Ruth C. Travis, Tim J. Key, Heinz Freisling, Talita Duarte-Salles, Magdalena Stepien, Elio Riboli, H. Bas Bueno-De- Mesquita

Department of Food Science and Technology: Faculty Publications

Background: Increasing evidence suggests that oral microbiota play a pivotal role in chronic diseases, in addition to the well-established role in periodontal disease. Moreover, recent studies suggest that oral bacteria may also be involved in carcinogenesis; periodontal disease has been linked several cancers. In this study, we examined whether lifestyle factors have an impact on antibody levels to oral bacteria.

Methods: Data on demographic characteristics, lifestyle factors, and medical conditions were obtained at the time of blood sample collection. For the current analysis, we measured antibody levels to 25 oral bacteria in 395 cancer-free individuals using an immunoblot …

Egg-Derived Tri-Peptide Irw Exerts Antihypertensive Effects In Spontaneously Hypertensive Rats, Kaustav Majumder, Subhadeep Chakrabarti, Jude S. Morton, Sareh Panahi, Susan Kaufman, Sandra T. Davidge, Jianping Wu

Department of Food Science and Technology: Faculty Publications

Background: There is a growing interest in using functional food components as therapy for cardiovascular diseases such as hypertension. We have previously characterized a tri-peptide IRW (Ile-Arg-Trp) from egg white protein ovotransferrin; this peptide showed anti-inflammatory, anti-oxidant and angiotensin converting enzyme (ACE) inhibitor properties in vitro. Given the pathogenic roles played by angiotensin, oxidative stress and inflammation in the spontaneously hypertensive rat (SHR), we tested the therapeutic potential of IRW in this well-established model of hypertension.

Methods and Results: 16–17 week old male SHRs were orally administered IRW at either a low dose (3 mg/Kg BW) or a high dose …

Recruitment Of Tlr Adapter Trif To Tlr4 Signaling Complex Is Mediated By The Second Helical Region Of Trif Tir Domain, Wenji Piao, Lisa W. Ru, Kurt H. Piepenbrink, Eric J. Sundberg, Stefanie N. Vogel, Vladimir Y. Toshchakov

Food for Health: Publications

Toll/IL-1R resistance (TIR) domain–containing adapter-inducing IFN-β (TRIF) is a Toll-like receptor (TLR) adapter that mediates MyD88-independent induction of type I interferons through activation of IFN regulatory factor 3 and NFκB. We have examined peptides derived from the TRIF TIR domain for ability to inhibit TLR4. In addition to a previously identified BB loop peptide (TF4), a peptide derived from putative helix B of TRIF TIR (TF5) strongly inhibits LPS-induced cytokine and MAPK activation in wild-type cells. TF5 failed to inhibit LPS-induced cytokine and kinase activation in TRIF-deficient immortalized bone-marrow–derived macrophage, but was fully inhibitory in MyD88 knockout cells. TF5 does …

Center For Grassland Studies, Fall 2013, Volume 19, No. 3

Center for Grassland Studies: Newsletters

Insects as Agents of Improved Rangeland Quality and Cattle Production

From the Director

Another Successful Nebraska Grazing Conference

Sand County Foundation Conservation Partners Hold National Symposium

Nominate Someone for Leopold Conservation Award

Terry Klopfenstein Recognized as BEEF Top 50

Golf Student Breaks Guinness World Record!

CGS Associates

UNL Launches Online Grassland Management Graduate Certificate Program

Academy Of Nutrition And Dietetics Benchmarks For Nutrition In Child Care 2011: Are Child-Care Providers Across Contexts Meeting Recommendations?, Dipti A. Dev, Brent A. Mcbride, Strong Kids Research Team

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

The Academy of Nutrition and Dietetics (Academy) recommends feeding practices for child-care providers to establish nutrition habits in early childhood to prevent obesity. With >12 million US children in child care, little is known about child-care providers’ feeding practices. The purpose of this study was to examine child-care providers’ feeding practices to assess whether providers met the Academy’s benchmarks and whether attainment of benchmarks varied across child-care contexts (Head Start, Child and Adult Care Food Program [CACFP], and non-CACFP). Cross-sectional data was collected in 2011 and 2012 from 118 child-care providers who completed self-administered surveys regarding their feeding practices for …

Growing A Healthy Future, Fall 2013

Institute of Agriculture and Natural Resources: Institute Publications

What's new at IANR; Who's new at IANR; Globe-trotting beans; Science in the know; Gilt puberty; Soybean agreement; Firing down wildfires; Energy interest; The vet is in; By the Numbers

Nebraska Chapter Gamma Sigma Delta Newsletter Issue #47 Fall 2013

Gamma Sigma Delta, Nebraska Chapter: Newsletters

Fall Seminar – Thursday October 10 Dr. Ken Cassman – Presenter 116 Chase Hall 3:00 PM

Annual Business Meeting 4:00 PM

Nominations for New Gamma Sigma Delta Members – Due November 1

Nominations for Gamma Sigma Delta Awards Due November 15, 2013
Award of Merit
Excellence in Extension
Excellence in Research
Excellence in Teaching
Outstanding Graduate Student

Awards Banquet Sunday, January 26, 2014 Beacon Hills 5353 North 27 Street, Lincoln 6:00 PM

Membership Renewal Form

In Memoriam: Dr. Roy A. Young,

Department Of Biological Systems Engineering Newsletter, October 2013

BSE Department Magazine

No abstract provided.

Making The American Body, Jonathan Black

University of Nebraska Press: Sample Books and Chapters

If you thought the fitness craze was about being healthy, think again. Although Charles Atlas, Jack LaLanne, Jim Fixx, Jane Fonda, Richard Simmons, and Jillian Michaels might well point the way to a better body, they have done so only if their brands brought in profits. In the first book to tell the full story of the American obsession with fitness and how we got to where we are today, Jonathan Black gives us a backstage look at an industry and the people that have left an indelible mark on the American body and the consciousness it houses. Spanning the …

Food Safety Education For Hispanic And Native American Audiences Using The Conceptual Change Model, Julie A. Albrecht

Discipline-Based Education Research Group Speaker Series

Results from three research studies (USDA funded grants) indicated a need for food safety education for Hispanic and Native American families with young children. Focus groups and surveys results indicated that these two diverse audiences had less food safety knowledge and that some food handling practices could impact the safety of their family; in particular their children. Certain populations are at greater risk of contracting food‐related illnesses and these groups include children and prenatal women. Several factors that contribute to foodborne illness susceptibility in children include underdeveloped immune systems, lower body weight, the sensitive nature of fetal development, and the …