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Good Agricultural Practices For Food Safety Of Fresh Produce, Laurie Hodges

Department of Agronomy and Horticulture: Faculty Publications

What are the guiding principles of food safety for fresh produce?

• Once contaminated, removing or killing pathogens on produce is very difficult.

• Preventing microbial contamination at all steps, from production to distribution, is strongly favored over treatments to eliminate contamination that may have occurred.

• Document the implementation of prevention programs, and educate workers at all levels of the agricultural and packing environments on food safety.

Key Signatures of a Credible Food Safety Program

The following is a condensed checklist of practices and conditions that reduce the potential for fresh produce to be exposed to pathogenic microbes. Review …

Mississippi Canyon 252 Incident Nrda Tier 1 For Deepwater Communities, Gregory Boland, Gary Brewer, Erik Cordes, Amanda Demopoulos, Chuek Fisher, Chris German, Ken Sulak

United States Geological Survey: Staff Publications

The northern Gulf of Mexico (GOM) is geologically diverse basin, described as the most complex continental slope region in the world. Regional topography of the slope consists of basins, knolls, ridges, and mounds derived from the dynamic adjustments of salt and the introduction of large volumes of sediment over long time scales. More than 99% of the sea floor in the GOM consists of soft sediment made up of various mixtures of primarily silt and clay. These wide-spread soft bottom communities are described in reports from major MMS studies by Gallaway et al. (1998) and Rowe and Kennicutt (2009). Relative …

Storage And Breakdown Of Starch Aid P. Parviflorus In Leaf Re-Greening After Nitrogen Deficiency, Kevin A. Korus, M. Elizabeth Conley, Erin E. Blankenship, Ellen T. Paparozzi

RURALS: Review of Undergraduate Research in Agricultural and Life Sciences

Plectranthus parviflorus, common Swedish ivy does not lose leaves when it is deprived of nitrogen. Instead this plant retains its yellow leaves and upon reintroduction of nitrogen will re-green and start to grow. In two experiments, rooted cuttings of common Swedish ivy were grown with (150 ppm N) and without nitrogen for 3 weeks. After some plants were sampled the others were either switched or kept at 0 or 150 ppm N and allowed to grow for another 3 weeks. After another sampling, plants were again switched or kept at 0 or 150 ppm N for a final 3 weeks. …

Nebline, May 2010

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Groundwater, a Vital Nebraska Resource

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

Memento, Sarah Rollman

Interior Design Program: Terminal Projects

Executive Statement

The focus of this project will be the tattoo parlor and bringing a new identity to the industry. The business is an artistic and creative one that will work well in the historic district among architecture and design firms, graphic design and branding firms, art galleries, and advertising firms.

Tattooing was widely practiced by many cultures in the ancient world, and was associated with a high level of artistic endeavor. The imagery of ancient tattooing is very similar to that of modern tattooing, and throughout history tattooing, like other forms of body decoration, has been related to the …

Making The Great Journey: International Students’ Experiences At The University Of Nebraska–Lincoln, Anh Le

Department of Educational Administration: Dissertations, Theses, and Student Research

The main purpose of the study was to produce an overview of international students’ experiences at the University of Nebraska-Lincoln (UNL) as articulated via their own words. The knowledge drawn from this study served as useful reference information for programs and courses geared toward international students. Given the many challenges facing international students and the great benefits that they bring, this study explored the experiences of international students at UNL. Although there has been a substantial amount of literature about international students, most of the research has been focused on a particular aspect of international students such as advising relationships …

The Use Of Factor Analysis In The Development Of Hand Sizes For Glove Design, Trevor M. Mclain

Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research

Factor analysis was used to develop a more detailed description of the human hand to be used in the creation of glove sizes; currently gloves sizes are small, medium, and large. The created glove sizes provide glove designers with the ability to create a glove design that can provide fit to the majority of hand variations in both the male and female populations. The research used the American National Survey (ANSUR) data that was collected in 1988. This data contains eighty-six length, width, height, and circumference measurements of the human hand for one thousand male subjects and thirteen hundred female …

Acid Marination For Tenderness Enhancement Of Beef Bottom Round, Jeremey B. Hinkle

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

Acid marination is known to improve meat tenderness. The objective of this study was to document the tenderness and color effects of marinating m. biceps femoris and to determine optimal acid levels. Acid solutions were prepared to 0.1 M (low) and 0.5 M (high) and pumped to 7% of initial wt. in experiment 1; 0.75 M (low) and 1.5 M (high) and pumped to 10 % of initial wt. in experiment 2. Lactic acid, acetic acid and sodium citrate dihydrate (food grade citric acid) at low and high concentrations gave 6 treatments per experiment. Objective color measurements were taken at …

Estimating Livestock Forage Demand: Defining The Animal Unit, Tonya L. Meyer

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

The objective of this experiment was to evaluate the effect of a beef animal’s physiological status on forage intake. The experiment was repeated over two years with six replications of three treatments per year: cow-calf pair (CC; BW = 629 kg), dry cow (DC; BW = 503 kg), and yearling steer (S; BW = 305 kg). The cow and calf were treated as one unit, with cow BW and calf BW comprising CC BW. Calves were approximately 42 d of age and weighing 73 kg at the start of each year. Animals were housed in individual pens and fed high …

Effect Of Grazing System On Livestock Performance, Botanical Composition, And Standing Crop In The Nebraska Sandhills, Mitchell B. Stephenson

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

A 10-year study compared a 4-pasture deferred-rotation (DR) grazing system with an 8-pasture short duration grazing (SDG) system at the Barta Brothers Ranch near Rose, NE to determine differences in livestock performance, botanical composition, and standing crop. Pastures were grazed by 50 to100 cow-calf pairs with both single (DR system) and multiple (SDG system) grazing periods from 15 May to 15 October. Livestock performance data were collected from spayed heifers substituted into each grazing system during the last 3 years of the study. Botanical composition was collected on 275 frequency of occurrence transects in 1998, 2003, and 2008. Standing crop …

Promoting Wellness For At-Risk Women In Nebraska: A Qualitative Study, Hannah Nelson

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

Health care concerns and beliefs of young women of Nebraska, specifically related to preconception care, was the primary concern of this research. Data collected from focus group interviews (n=24) conducted across the state, in both urban and rural settings, and with women of different racial groups asked questions concerning their belief system for necessary components to maintain a healthy lifestyle. Questions were designed using the Life Course Theory, which is a holistic approach to health. In these interviews, the women identified four main areas that, when improved, can greatly enhance overall wellness. These areas include: attaining better physical health, improving …

Unsaturated Fatty Acids Repress The Expression Of Adipose Fatty Acid-Binding Protein, Ap2, In Raw 264.7 Macrophage, Sara L. Coleman

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

Adipocyte fatty acid binding protein, aP2, present in macrophages has been implicated in the integration of lipid metabolism and inflammatory response, contributing to development of insulin resistance and atherosclerosis. We investigated the modulation of aP2 expression by inflammatory insults and fatty acids in RAW 264.7 macrophages. When the cells were incubated with lipopolysaccharides (LPS; 100 ng/ml) or 10 ng/ml of tumor necrosis factor α for 18 h, aP2 mRNA and protein levels were drastically increased. Unsaturated fatty acids (100 μM of 18:1, 18:2, 18:3, 20:5 in complex with BSA), but not saturated fatty acids (16:0), significantly repressed the basal aP2 …

Youth School Enrichment Nutrition Programming In Nebraska: A Descriptive Study, Ashley M. Keller

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

The objectives of this study were to determine the nutrition knowledge of students in grades K-6 (n = 62,324) participating in Supplemental Nutrition Assistance Program-Education (SNAP-Ed), to determine if the nutrition information provided by the program impacts youth nutrition knowledge and behaviors, and to determine if there is a difference in the impact of the school enrichment program versus the non-school enrichment program. Without proper nutrition and physical activity the tendency for children to gain weight increases; therefore, increasing the likelihood of becoming obese. In the past 20 years, the prevalence of obesity has doubled. Eating behaviors and the amount …

Dynamic Predictive Model For The Growth Of Salmonella Spp. In Liquid Whole Egg And Risk Evaluation Of Egg White Hydrolysates Manufacturing Process For Spore Formers: Bacillus Cereus And Clostridium Perfringens, Aikansh Singh

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

A dynamic model for the growth of Salmonella spp. in liquid whole egg under continuously varying temperature was developed and validated. A primary model (Baranyi model) was fitted to each temperature growth data and corresponding maximum growth rates were estimated. Pseudo-R² values were greater than 0.97 for primary models. The maximum growth rates obtained from each primary model were then plotted against temperature and modeled using the modified Ratkowsky model. The pseudo-R² and root mean square error were 0.99 and 0.06 h^-1, respectively for the secondary model. A dynamic model for the prediction of Salmonella spp. …

Assessing Dietary Intake, Eating And Exercise Attitudes And Fitness Levels In College-Aged Students, Katie J. James

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

BACKGROUND The transition from high school to college can be a stressful lifestyle change for young adults. During this transition students develop a variety of health attitudes and behaviors that may have a negative impact on their overall wellbeing. OBJECTIVE To determine the correlation of BMI to dietary intake, fitness level and eating and exercise attitudes of college students. SETTING Participants completed an eating and exercise attitude survey, 2-day diet recall, and preformed three fitness tests at a Midwestern University through their Campus Recreational Center. PARTICIPANTS 772 students between the ages of 18-25 from a Midwestern University between the years …

Modulation Of Lipid Metabolism By Phytosterol Stearates And Black Raspberry Seed Oils, Mark Mckinley Ash

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

Naturally occurring compounds and lifestyle modifications as combination and mono-therapy are increasingly used for dyslipidemia. Specficially, phytosterols and fatty acids have demonstrated an ability to modulate cholesterol and triglyceride metabolism in different fashions. In two separate studies, the lipid-lowering effects of black raspberry seed oil and three different phytosterol stearates were examined in order to elucidate the effects of these dietary components and the factors influencing their therapeutic actions.

The first study examined high cholesterol diets supplemented with crude and refined black raspberry seed oils, coconut oil or soybean oil. The crude and refined raspberry seed oil (RSO) treatments significantly …

Influence Of Canopy Cover, Nutrients, And Season On Stoichiometric Variation Of Epilithon In Neotropical Streams., Tyler J. Kohler

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

Light and nutrient availability are strong factors determining the nutrient composition of epilithon in temperate stream ecosystems. However, little work has been performed regarding this association in tropical streams. In our study, we investigated 1) how gradients of canopy cover and nutrients and 2) wet/dry seasonality influence epilithon standing stocks and nutrient quality. We surveyed 18 stream locations within six watersheds that varied in nutrient and light conditions during both the wet and dry seasons on the island of Trinidad to test these questions. Additionally, we sampled four stream reaches bimonthly for three years, thinning the canopy of two of …

Effects Of Feeding Distillers' Grains On Beef Quality, Amilton S. De Mello Jr.

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

This research was conducted to understand the effects of feeding finishing diets containing distillers grains on beef quality. In the first and second studies, feeding wet distillers grains plus solubles (WDGS) increased proportions of PUFA, omega 6, omega 6/omega3, and trans fatty acids when compared to corn (P ≤ 0.05). Lipid oxidation was higher in muscles from animals fed WDGS when compared to corn (P ≤ 0.05). The third study examined the effects of feeding levels up to 50% of modified distillers grains plus solubles (MDGS) on fatty acid composition in beef. Linear increase (P ≤ 0.05) …

Self Study Review 2010

Department of Agricultural Leadership, Education, and Communication: Materials and History

No abstract provided.

Nebraska Urban Environmental And Agricultural Systems Education Program: An Evaluation For Development, Heather Ann Borck

Department of Agricultural Leadership, Education, and Communication: Dissertations, Theses, and Student Research

In Understanding Agriculture: New Directions for Education, the National Research Council (1988) reported, “Too many Americans know very little about the social and economic relevance of agriculture in the United States, and agriculture is too important a subject to be taught only to a relatively small proportion of students enrolled in vocational agriculture” (p.1). Now over 20 years later, this problem is still relevant. During the 2007-2008 school year 10.5 percent of Nebraska high school students were enrolled in an agricultural education course. This may be the result of an absence of agricultural education in the largest four school districts …

T10c12 Conjugated Linoleic Acid Causes Delipidation In 3t3-L1 Adipocytes And Mice, Shan Jiang

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

T10c12 conjugated linoleic acid (t10c12 CLA) causes the reduction of triglyceride contents in adipocytes. T10c12 CLA’s delipidation effect is associated with decreased nutrient uptake, adipogenesis, lipogenesis, and increased energy expenditure, lipolysis, fatty acid oxidation in adipocytes. However, the molecular mechanisms of CLA’s delipidation effects are still unknown. AMP-activated protein kinase (AMPK), a central regulator of cellular energy levels, is activated by an increase in the cellular AMP:ATP ratio or various cellular stresses. We demonstrated that t10c12 CLA activated AMPK in 3T3-L1 adipocytes, leading to inhibition of anabolic biosynthesis and increase of energy expenditure. Strong activation of AMPK can induce an …

Nebraska Chapter Gamma Sigma Delta Newsletter Issue #40 Spring 2010

Gamma Sigma Delta, Nebraska Chapter: Newsletters

President’s Message: Dennis Brink

Recipients of 2009 Gamma Sigma Delta Awards -- The Nebraska Chapter of Gamma Sigma Delta Award Committees announces the 2009 recipients of Gamma Sigma Delta awards. These awards were given by the Nebraska Chapter of Gamma Sigma Delta in recognition of outstanding service in research, extension, teaching, administration, and leadership in the field of agriculture, natural resources, and human sciences.

Award of Merit for Service -- Recipient: Elbert C. Dickey

Extension Award -- Recipient: Dennis E. Bauer

Teaching Award -- Recipient: Tiffany M. Heng-Moss

Research Award -- Recipient: Clinton J. Jones

Outstanding Graduate Award -- Recipient: …

A Doctor Among The Oglala Sioux Tribe, Robert H. Ruby

University of Nebraska Press: Sample Books and Chapters

In 1953 young surgeon Robert H. Ruby began work as the chief medical officer at the hospital on the Pine Ridge Indian Reservation in South Dakota. He began writing almost daily to his sister, describing the Oglala Lakota people he served, his Bureau of Indian Affairs colleagues, and day-to-day life on the reservation. Ruby and his wife were active in the social life of the non-white community, which allowed Ruby, also a self-trained ethnographer, to write in detail about the Oglala Lakota people and their culture, covering topics such as religion, art, traditions, and values. His frank and personal depiction …

Droughtscape, Spring 2010, Kelly Smith

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

NDMC and NC Drought Council Team Up

Drought to Intensify in Northwest and Hawaii

International Work

Impacts Recorded in Hawaii and Western States

U.S. Drought Monitor Archives Enhanced

Low-Water Impact Surveys Completed

K-12 Drought Outreach

Nebline, April 2010

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Volunteer to Make a Difference!

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

Bilingual-Bicultural Teachers' Cultural Competence Development Blueprint In Predominantly Subtractive Bilingualism Contexts: Insights From Research Literature, Valentin Ekiaka Nzai,, Jenelle Reeves

Department of Teaching, Learning, and Teacher Education: Faculty Publications

Recent studies on quality education for diverse classrooms suggest cultural competence as a prerequisite for culturally responsive teaching. A critical analysis of teacher education strategies aimed at increasing pre-service teachers’ cultural competence, in mostly white-serving and traditional teacher education programs, reveals that such approaches generally situate white teacher candidates only as closely as the periphery of bilingual students’ cultures. Further, while a number of diversity-oriented educational programs have been designed for white pre-service teachers, there currently exists no coherent and comprehensive framework for developing U.S.-born bilingual pre-service teachers’ bilingual-bicultural competences in predominantly white-serving and traditional teacher education programs. This paper …

Journal Of The National Collegiate Honors Council, Vol. 11, No. 1, Spring/Summer 2010

Journal of the National Collegiate Honors Council Online Archive

CONTENTS
Call for Papers
Submission Guidelines
Dedication to Norm Weiner
Editor’s Introduction • Ada Long

FORUM ON “HONORS AND ATHLETICS”
College Sports, Honors, Five Liberal Lessons, and Miloof Crotona • Sam Schuman
GO HONORS! • Joan Digby
Bridging the Jock-Geek Culture War • Bradley J Bates and Carolyn A Haynes
A Collaborative Recruitment Model between Honors and Athletic Programs for Student Engagement and Retention • Rich Eckert, Ashley Grimm, Kevin J Roth, and Hallie E Savage
Student Athletics and Honors: Building Relationships • James J Clauss and Ed Taylor
Honors Director as Coach: For the Love of the Game • …

The Role Of Ecotourism In Biodiversity And Grassland Conservation In Botswana, Glyn Maude, Richard Reading

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Botswana has a variety of ecosystems, all of which support a multitude of wildlife species. The Kalahari is a vast semidesert that covers over 84% of the country. Grasslands along with scattered trees and drought-resistant undergrowth dominate large tracts of the Kalahari’s landscape. The northeastern Kalahari extends into the wetter environments of Botswana—the Okavango Delta, the Savuti, and the Chobe—within which grassland habitats support abundant wildlife species. Botswana is unique in that most of its biodiversity remains intact, with a higher percentage of its total landmass conserved than any other country. Botswana achieves this level of protection primarily through ecotourism, …

Unpacking Evidence Of Gender Bias, Connie L. Fulmer

Journal of Women in Educational Leadership

The purpose of this study was to investigate gender bias in pre-service principals using the Gender-Leader Implicit Association Test. Analyses of student-learn- ing narratives revealed how students made sense of gender bias (biased or not-biased) and how each reacted to evidence (surprised or not-surprised). Two implications were: (1) the need for leadership programs to help students identify and unpack gender bias, and (2) to provide new leaders with strategies to con- front and reduce gender bias in the organizations in which they will lead. A model for identifying, confronting, and reducing gender bias is presented as scaffolding to help educational …

Book Review: Ancient Nomads, Daniel J. Wescott

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Ancient Nomads is the companion book to a Canadian Museum of Civilization exhibition comparing the cultures of nomadic peoples from the Russian and Canadian grasslands. Following an introduction, the “Grasslands” chapter describes the terrain, climate, vegetation, and wildlife in the Russian Steppes and the Canadian Great Plains. The authors then provide a brief archaeological history of both regions from approximately 35,000 to 5,000 years ago. The subsequent chapters provide an overview of various cultural aspects of nomads from the Steppes and the Plains: subsistence, food, transportation, housing, clothing, use of metal, spiritual life, and relationships with other nomadic and sedentary …