Digital Commons Network^™

Constructive Developmental Theory: An Alternative Approach To Leadership, Anne Marie B. Hunter, Nancy M. Lewis, Paula K. Ritter-Gooder

Department of Nutrition and Health Sciences: Faculty Publications

As early as 1954, the critical value of leadership in dietetics was described by Rourke, who wrote, “When the day comes that your executive abilities equal your scientific knowledge, your profession (dietetics) will be secure. Until that day, you will be faced with a constant and unwelcome challenge” (1). Career and leadership skills development have been identified as an area for further attention by American Dietetic Association (ADA) practitioners and student members (2). Creation of the ADA Leadership Institute in 2003 represented an awareness of the need to invest in developing dietetic leaders (3). Proficient leaders are critical in keeping …

A Comparison Of The Effectiveness Of Scent Lures On Attracting Mesopredators, Tom Batter

Department of Environmental Studies: Undergraduate Student Theses

A mesopredator is a medium-sized middle trophic level predator such as a raccoon (Procyon lotor), red fox (Vulpes vulpes), striped skunk (Mephitis mephitis), or coyote (Canis latrans; Crooks and Soule 1999). Mesopredators have long been trapped for recreational, economic, or academic reasons. Throughout human history trapping has been used to capture animals for food and skins, as well as to prevent personal harm and property damage from predators. In order to increase the probability of success, scent lures are often used as an attractant (Geary 1984, Mills et al. 2010, Schlexer 2008).

Supplementing Distillers' Grains In Extensive Beef Cattle Systems, Kelsey Rolfe

Department of Animal Science: Dissertations, Theses, and Student Research

A 3-yr study evaluated effects of supplementing modified wet distillers grains with solubles during summer grazing and subsequent feedlot sorting on long yearling steers. During summer grazing, supplemented steers had greater ADG and were more profitable than non-supplemented steers. At feedlot entry, supplemented steers were 48 kg heavier than non-supplemented steers. Feed efficiency and DMI were not different between supplementation treatments during finishing. Supplemented steers were fed 24 fewer days to reach a similar 12^th rib fat thickness, had greater LM area, and lower marbling compared to non-supplemented steers. Overall profitability favored supplementing steers because less expensive summer gains …

Nutrient Management In Beef Feedlots And Forage Replacement With Byproduct And Crop Residues, Annie J. Doerr

Department of Animal Science: Dissertations, Theses, and Student Research

Finishing cattle performance and mass balance was evaluated with Micro-Aid was fed in diets containing wet distillers grains plus solubles (WDGS) at 35% (DM basis). Micro-Aid is a feed ingredient derived from a Yucca extract which contains saponins, and was included in the treatment diet at 1 g/hd daily in the supplement. There was no difference in performance and carcass characteristics between treatments. In the winter experiment, cattle fed Micro-Aid had a greater amount of OM and DM removed from the pen surface. Micro-Aid in the diet increased the amount of manure N and decreased N lossis in the winter. …

Evaluation Of Condensed Distillers’ Solubles And Field Peas For Feedlot Cattle, Anna C. Pesta

Department of Animal Science: Dissertations, Theses, and Student Research

Limited previous research has investigated feeding high levels of condensed distillers solubles (CDS) as an energy source for feedlot cattle. As an energy dense and relatively inexpensive by-product feed from ethanol production, CDS may provide another opportunity to replace high priced corn in finishing diets. Two feedlot studies and one metabolism study were conducted to evaluate the effects of feeding CDS in both corn-based diets, and in combination with other by-product feeds on cattle performance and carcass characteristics. Inclusion of up to 36% CDS, providing 9.4% dietary fat improved performance relative to a corn-based control, with the optimum level of …

Validation Of Chinese Women’S Alcohol Expectancy Instrument, Yue Qiu Yu

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

The present study was designed to develop and validate the Chinese Women’s Alcohol Expectancy scale; and to examine gender differences in alcohol expectancy. 134 interviewees from Canton, Kaiping and Hong Kong participated in study 1. 1,550 students from thirteen universities in three provinces, Beijing, Yunnan and Wuhan, China, completed the women’s alcohol expectancy questionnaire in study 2. The findings in study 1 revealed six prominent categories that inform women’s alcohol expectancy. Findings in study 2 provided 7-subscales (α > 0.7) for the instrument’s reliability and validity. Additionally, there were significant differences in alcohol expectancy by genders. Implications related to expectancy theory …

Abiotic Stress Responses In Photosynthetic Organisms, Joseph Msanne

School of Natural Resources: Dissertations, Theses, and Student Research

Cellular and molecular aspects of abiotic stress responses in Arabidopsis thaliana subjected to cold, drought, and high salinity and in two photosynthetic green alga, Chlamydomonas reinhardtii and Coccomyxa sp. C-169, subjected to nitrogen deprivation were investigated. Cold, drought, and high salinity can negatively affect plant growth and crop production. The first research aimed at determining the physiological functions of the stress-responsive Arabidopsis thaliana RD29A and RD29B genes. Cold, drought, and salt induced both genes; the promoter of RD29Awas found to be more responsive to drought and cold stresses, whereas the promoter of RD29B was highly responsive to salt stress. …

Morphine Potentiates Neuropathogenesis Of Siv Infection In Rhesus Macaques, Sirosh M. Bokhari, Ramakrishna Hedge, Shannon Callen, Honghong Yao, Istvan Adany, Qingsheng Li, Zhuang Li, David Pinson, Hung-Wen Yeh, Paul D. Cheney, Shilpa Buch

Qingsheng Li Publications

Despite the advent of antiretroviral therapy, complications of HIV-1 infection with concurrent drug abuse are an emerging problem. Opiates are well-known to modulate immune responses by preventing the development of cell-mediated immune responses. Their effect on the pathogenesis of HIV-1 infection however, remains controversial. Using the Simian Immunodeficiency Virus/ macaque model of HIV pathogenesis, we sought to explore the impact of morphine on disease progression and pathogenesis. Sixteen Rhesus macaques were divided into 2 groups; 4 were administered saline and twelve others morphine routinely. Both groups of animals were then inoculated with SIVmacR71/17E and followed longitudinally for disease pathogenesis. The …

Effect Of Diet Quantity And Quality On Female Sampling Behavior And Mating Preferences In A Field Cricket, Heidi L. Bulfer

School of Biological Sciences: Dissertations, Theses, and Student Research

Understanding the adaptive significance of variation in female mating behaviour is important because variation may often be favored by selection instead of a change in mean mating behaviour, particularly in variable environments. Females are known to adjust their mating behaviour to a variety of intrinsic and extrinsic factors including nutrition. There are multiple reasons why female behaviours might vary with nutrition; we tested two of these hypotheses: the search cost hypothesis and the direct benefits hypothesis. These hypotheses are not mutually exclusive, but they make contrasting predictions under some conditions. Low nutrition females may have less available energy to support …

Life History Tradeoffs And Phenotypic Plasticity: The Tale Of A Flight Polyphenic Field Cricket, Chandreyee Mitra

School of Biological Sciences: Dissertations, Theses, and Student Research

Most organisms are resource limited. Such limitations can result in tradeoffs between life history traits -- any traits that affect survival or reproduction. Flight polyphenic field crickets are thought to be a classic example of such a life history tradeoff, in which individuals tradeoff investment in flight capability and investment in reproduction. This polyphenism results from the interaction of two morphological traits: wing morphology (short or long) and flight muscle morphology (functional pink or non-functional white), and is affected by both genes and the environment. I examined life history traits of a flight polyphenic field cricket, Gryllus lineaticeps. First, …

Biological Analysis Of Prebiotics In Various Processed Food Matrices, Kristina Elise Moore

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

The addition of prebiotic to a variety of food products has become a more common occurrence in recent years. Although research on the stability of prebiotics has been conducted, knowledge of the stability of prebiotics in processed foods is limited. The purpose of this research was to determine the biological stability of five prebiotics in a variety of food matrices when processed under various conditions. A biological test, the prebiotic activity assay, was used to test for stability of six food products (muffin, cookie, granola bar, breakfast cereal, sports drink, and bread) containing five different prebiotics (fructooligosaccharides (FOS), inulin, galactooligosaccharides …

Identification And Characterization Of Putative Allergens In Pecan Species, Jelena Spiric

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

The identification and characterization of soluble pecan proteins was found to be qualitatively dependent on the chemical characteristics of the extraction buffer that also had a significant influence on the total protein content of an extract. The ionic strength of the extraction buffer had a greater impact on protein extractability than pH. A high salt phosphate buffer (0.01 M PBS, 1M NaCl, pH 7.2) was used as an optimal extraction solution that allowed remarkable detection of clinically relevant allergens.

The 2S albumin family of seed storage proteins has been shown to be one of the most stable allergens, thus potentially …

Adaptation And Validation Of Food Product Specific Analytical Methods For Monitoring Prebiotics Present In Different Types Of Processed Food Matrices, Rebbeca M. Duar

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

Prebiotic carbohydrates are now added to a variety of processed foods to beneficially affect the gut microbial composition and activities. However, published data remain limited on the stability of prebiotics during food processes, such as baking, extrusion, pasteurization, high temperature heating, low pH condition, etc. As the complexity of the food matrix may also affect the ability to test for prebiotics, product specific analytical methods, including UV-vis spectroscopy, GC and HPLC, were developed and validated to monitor the stability of FOS, inulin and GOS in different types of processed food (breakfast cereal, cookie, muffin, sports drink and a nutritional bar). …

Studies On The Adherence Properties Of Plant Lectins And Bacterial Adhesins And Their Inhibition By Prebiotic Oligosaccharides And Bovine Colostrum Fractions, Maria X. Maldonado-Gomez

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

To initiate colonization and infection, most microbial pathogens must first recognize and adhere to cells in the host tissues. Adherence inhibition, therefore, can be used as a strategy for preventing infectious disease. In this research, we developed a simplified model using plant lectins and HEp-2 tissue culture cells to simulate bacterial adhesins-receptors interactions. The effect of lectin ligands and two prebiotic carbohydrates, galactooligosaccharide (GOS) and polydextrose (PDX) was measured with this approach. Lectins that were able to bind to the target cells were inhibited in the presence of the cognate ligands and at least one of the prebiotic carbohydrates. The …

The Increasing World Population: A Call For Entrepreneurial Leadership & Innovation, Connie I. Reimers-Hild

Kimmel Education and Research Center: Presentations and White Papers

According to the United Nations, the world’s population hit 7 billion on October 31, 2011. The United Nations is projecting the world population to reach 9.3 billion by 2050. The new population landmark set off alarms in governments and organizations around the world. Most of the growth will occur in the poorest and least developed regions of the world, which already must work to resolve issues related to shortages of quality food, soil, air and water. Many people living in these countries also lack access to education, healthcare and global political capital. This white paper discusses the importance of innovation …

Boron Stress Activates The General Amino Acid Control Mechanism And Inhibits Protein Synthesis, Irem Uluisik, Alaattin Kaya, Dmitri E. Fomenko, Huseyin C. Karakaya, Bradley A. Carlson, Vadim N. Gladyshev, Ahmet Koc

Department of Biochemistry: Faculty Publications

Boron is an essential micronutrient for plants, and it is beneficial for animals. However, at high concentrations boron is toxic to cells although the mechanism of this toxicity is not known. Atr1 has recently been identified as a boron efflux pump whose expression is upregulated in response to boron treatment. Here, we found that the expression of ATR1 is associated with expression of genes involved in amino acid biosynthesis. These mechanisms are strictly controlled by the transcription factor Gcn4 in response to boron treatment. Further analyses have shown that boron impaired protein synthesis by promoting phosphorylation of eIF2α in a …

The Increasing World Population: A Call For Entrepreneurial Leadership And Innovation, Connie Reimers-Hild

Cornhusker Economics

According to the United Nations, the world’s population hit seven billion on October 31, 2011. The United Nations is projecting the world population to reach 9.3 billion by 2050. The new population landmark set off alarms in governments and organizations around the world. Most of the growth will occur in the poorest and least developed regions of the world, which already must work to resolve issues related to shortages of quality food, soil, air and water. Many people living in these countries also lack access to education, healthcare and global political capital.

More developed countries face many of the same …

Nebline, November/December 2011

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Avoid Guessing About Holiday Food Safety

Farm Views

Horticulture

Food & Fitness

Home & Family Living

Environmental Focus

Urban Agriculture

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

Dung Beetle Ecology: Habitat And Food Preference, Hypoxia Tolerance, And Genetic Variation, Sean Doyle Whipple

Department of Entomology: Dissertations, Theses, and Student Research

Four studies were conducted on dung beetles (Coleoptera: Scarabaeidae), which are insects of great ecological and economic importance. Range management practices were found to impact dung beetle diversity and abundance. While sampling on organic and conventionally managed ranches in Nebraska, 93% (5,767) of total dung beetle capture was from the organically managed ranch. Only 480 dung beetles (7% of total) were collected from the conventionally managed ranch. Results indicated that organic ranching had increased numbers and diversity of dung beetles.

Comparison of the attractiveness of native and exotic herbivore, carnivore, and omnivore dung yielded 9,089 dung beetles from 15 species. …

Integration Of Plant-Based Canopy Sensors For Site-Specific Nitrogen Management, Luciano S. Shiratsuchi

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

The soil’s nitrogen (N) supply can vary drastically in the field, spatially as well as temporally making any soil prediction difficult even with very detailed mapping. Consequently, a plant-based approach wherein the measured canopy can indicate the N needs in a reactive and spatially-variable way can be a better approach than mapping, because integrate the soil N supply and translate the crop need on-the-go. The first experiment evaluated the performance of various spectral indices for sensing N status of corn, where spectral variability might be confounded by water-induced variations in crop reflectance. We found that water and previous crops effects …

Extent Of Coterminous Us Rangelands: Quantifying Implications Of Differing Agency Perspectives, Matthew Clark Reeves, John E. Mitchell

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Rangeland extent is an important factor for evaluating critical indicators of rangeland sustainability. Rangeland areal extent was determined for the coterminous United States in a geospatial framework by evaluating spatially explicit data from the Landscape Fire and Resource Management Planning Tools (LANDFIRE) project describing historic and current vegetative composition, average height, and average cover through the viewpoints of the Natural Resources Inventory (NRI) administered by the Natural Resources Conservation Service and the Forest Inventory and Analysis (FIA) program administered by the US Forest Service. Three types of rangelands were differentiated using the NRI definition encompassing rangelands, afforested rangelands, and transitory …

Obtaining And Using Copyrighted Research Journal Content—Convenience Vs Ethics, Paula K. Ritter-Gooder, Nancy M. Lewis, Leslie M. Delserone

University of Nebraska-Lincoln Libraries: Faculty Publications

Members of American Dietetic Association (ADA) or those credentialed by the Commission on Dietetic Registration agree to abide by the ADA/Commission on Dietetic Registration Code of Ethics for the dietetics profession (1). A fundamental principle within the Code is to conduct dietetics practice with honor, integrity, and fairness and to comply with all laws and regulations applicable or related to the profession. Dietetics practitioners read and apply the results of research published in professional journals and other publications to guide their evidence-based practice. Authors of research articles can, in some cases, make their work more accessible to practitioners by amendment …

Agronomy & Horticulture Newsletter, October 25, 2011, Kathy Schindler

Department of Agronomy and Horticulture: Monthly Newsletters

Mark the Date!..............1

Halloween Hail & Farewell Potluck Set..............1

Research Travel Funds Available..............1

Series offers Food for Thought..............2

Information For & About Graduate Students..............2

Name mispelled in the last newsletter..............3

News From the HAPPI Business Center..............3

A Word from Your Office Professionals..............4

2011 Walking Tours of the Maxwell Arboretum..............4

Funding Announcements..............4

The Crosstalk Between Human Fatty Acid Transport Protein 1 And Fatty Acid Transport Protein 4, Zhe Yuan

Department of Biochemistry: Dissertations, Theses, and Student Research

Fatty acid transport proteins (FATPs) provide pivotal roles in fatty acid transport and activation and thus are crucial for overall fatty acid homeostasis. Peroxisome Proliferators Activated Receptors (PPARs) are important transcription factors, which control many genes that govern lipid metabolism.

Using 293 T-REx cell lines that stably express FATP1 or FATP4 from a tetracycline-inducible promoter, this work evaluated gene expression of key genes involved in fatty acid metabolism using QPCR, protein expression of FATP1 and FATP4 using Western blots, and fatty acid transport to address the roles of these two FATP isoforms in fatty acid homeostasis. This work found that …

Agronomy & Horticulture Newsletter, October 10, 2011, Kathy Schindler

Department of Agronomy and Horticulture: Monthly Newsletters

Mark the Date!...............1

Thanks to all for a great review!...............1

CASNR seeks nominations for Teaching Award...............1

Big Red Mixer Set Oct. 18 in San Antonio...............2

Information About Graduate Students...............2

Series offers Food for Thought...............2

Department employees welcome new children and grandchildren...............3

News From the HAPPI Business Center...............4

A Word from Your Office Professionals...............4

Funding Announcements...............4

The Armenians Of Palestine 1918-48, Bedross Der Matossian

Department of History: Faculty Publications

For the Armenians of Palestine, the three decades of the Mandate were probably the most momentous in their fifteen hundred-year presence in the country. The period witnessed the community’s profound transformation under the double impacts of Britain’s Palestine policy and waves of destitute Armenian refugees fleeing the massacres in Anatolia. The article presents, against the background of late Ottoman rule, a comprehensive overview of the community, including the complexities and role of the religious hierarchy, the initially difficult encounter between the indigenous Armenians and the new refugee majority, their politics and associations, and their remarkable economic recovery. By the early …

Beneficial Partnerships: K-Staters Conduct Projects Throughout Africa, Gloria Holcombe, Timothy Dalton

INTSORMIL Impacts and Bulletins

Africa grows many of the same crops as Kansas, including sorghum and wheat. In fact, sorghum germplasm came from Africa, and now Kansas is the No. 1 sorghum producer in the United States.

K-State has expertise in grain storage issues, wheat and grain sorghum milling, and growing crops under dryland and irrigated conditions — vital information for African producers. Faculty secure grant funding to cover travel and other expenses associated with these partnerships. As an added bonus, they bring international experience into the classroom to share with their students. International collaborations help develop networks to share research, establish new markets, …

Community Capacity Building: Supporting Military Children And Families Environmental Scan Of Extension Professional Development Opportunities For Early Childhood And School-Age Providers: Final Report, Jennifer K. Gerdes, D. Felix, Amanda Prokasky, Tonia Durden, Kathleen Lodl

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

The purpose of this environmental scan was to discover what professional development is offered through the Cooperative Extension System to early childhood or school age providers across the nation. A secondary focus was to assess the availability of professional development opportunities offered through the Cooperative Extension System for providers who serve children (birth–12) from military families, both on and off installation. Through this process, the strengths of Extension were highlighted and existing resources that could be replicated for use in other states were identified.

Effects Of Soil And Foliar Applications Of Zinc On Grain Zinc Concentrations Of Maize, Sorghum And Wheat In Zambia, Obed I. Lungu, S. Simunji, I. Cakmak

INTSORMIL Scientific Publications

Micronutrient deficiencies are quite widespread in Sub‐Saharan Africa including Zambia. A survey study of selenium and zinc content in selected soils and staple food crops showed low concentrations that suggested that populations might be at risk of low intake of these micronutrients through the diet. The beneficial effects of Se and Zn are well documented in human populations (Black et al. 2008). Agronomic bio‐fortification offers a promising strategy to address micronutrient deficiency in the diet (Cakmak, 2008). This study was conducted to evaluate the effects of soil and foliar applications of Zn on Zn concentrations in maize, sorghum and wheat.

Center For Grassland Studies, Fall 2011, Volume 17, No. 3

Center for Grassland Studies: Newsletters

Contents:

Another Successful Nebraska Grazing Conference

From the Director

Rethinking Late-fall Fertilization

Meet our 2011-2012 Grazing Livestock Systems Student Ambassador

Catch 2011 Center Fall Seminars Live or on Video