Digital Commons Network^™

A Nation And Culture's Fight For Survival: How The Existing Indian Family Exception Renders Icwa Inapplicable, Keely Kleven

Nebraska Law Bulletin (Selected Issues)

The Indian Child Welfare Act (ICWA) was enacted to curtail the removal of Indian children from their tribes and families by allowing tribes to have jurisdiction over custody proceedings involving Indian children; it ensured the security of tribes by allowing them to pass Indian culture down from one generation to the next. The chances of Indian survival, as noted by Calvin Isaac, are significantly reduced when Indian children are raised in non-Indian homes or denied exposure to their heritage. Although some states have complied with the spirit of the ICWA, other states have created the existing Indian family (EIF) exception …

Essays On The Designs And Benefits Of Land Conservation Programs, Badri Khanal

Department of Agricultural Economics: Dissertations, Theses, and Student Research

This dissertation analyzes the policy designs and economic benefits of a land conservation practice called prairie strips. The first chapter investigates the impact of policy designs on individual household preferences. The study measures the value that Iowa residents place on the ecosystem services of prairie strips and determines if that value changes under different policy designs. The policy design treatment varies in who runs the program and who has enrollment priority. The willingness to pay (WTP) for ecosystem services is estimated using stated preferences from a choice experiment. Results indicate significant public support for expanding and funding the prairie strips …

Skeletal Muscle Cell Growth Alters The Lipid Composition Of Extracellular Vesicles, Taylor R. Valentino, Blake D. Rule, C Brooks Mobley, Mariana Nikolova-Karakashian, Ivan Jose Vechetti Jr

Department of Nutrition and Health Sciences: Faculty Publications

We sought to characterize the lipid profile of skeletal muscle cell-derived Extracellular Vesicles (EVs) to determine if a hypertrophic stimulus would affect the lipid composition of C2C12 myotube-derived EVs. Analyses included C2C12 murine myoblasts differentiated into myotubes and treated with Insulin-Like Growth Factor 1 (IGF-1) for 24 h to induce hypertrophic growth. EVs were isolated from cell culture media, quantified using Nanoparticle Tracking Analysis (NTA) and analyzed using Transmission Electron Microscopy (TEM). EVs were homogenized and lipids extracted for quantification by Mass Spectrometry followed by downstream lipid class enrichment and lipid chain analysis. IGF-1 treatment elicited an increase in CD63 …

The New American Dream: Neoliberal Transformation As Character Development In Schitt’S Creek, William Joseph Sipe

Department of Communication Studies: Faculty Publications

This article contextualizes the popular sitcom Schitt’s Creek within an era of unprecedented economic inequality and growing distain for the ultrawealthy. Via its over-the-top and self-effacing humor, the program invites audiences to discipline the Rose family for their former life of leisure and ultimately celebrate as each character is transformed into an ideal neoliberal subject via economic precarity and entrepreneurism. Through an analysis of the show’s 6 seasons, this essay articulates how the myth of the American Dream has adapted to neoliberal ideology that prizes precarity as a state of possibility and rejects leisure as laziness. Schitt’s Creek is emblematic …

Secondary Traumatic Stress, Burnout And Resilience In The Child Welfare Workforce: Early Results From Nebraska’S Randomized Controlled Trial Of Resilience Alliance, Quality Improvement Center For Workforce Development

Other QIC-WD Products

A 2018 needs assessment indicated that more than 50% of the child welfare workforce in Nebraska was experiencing elevated secondary traumatic stress (STS). STS refers to the experience of people – generally professionals– who are exposed to others’ traumatic events as part of their work. As a result of this exposure, these professionals can develop their own traumatic symptoms and reactions such as sleeplessness and anxiety. The Nebraska Department of Health and Human Services (DHHS) Division of Children and Family Services (DCFS) in partnership with the Quality Improvement Center for Workforce Development (QIC-WD) implemented CFS Strong, a multi-phased workforce intervention …

Effect Of A Trace Mineral Injection On Performance And Trace Mineral Status Of Beef Cows And Calves, Carmen J. Willmore, John B. Hall, Mary E. Drewnoski

Department of Animal Science: Faculty Publications

The objective was to determine the effects of an injectable trace mineral (TMI; Multimin 90) containing copper (Cu), manganese (Mn), selenium (Se), and zinc (Zn) on trace mineral status and the resulting impacts on reproduction of beef cows and the growth of their calves. Beef cows (n = 200) were assigned to receive TMI or no injection (CON) prior to calving and breeding over two consecutive years. Calves born to cows receiving TMI also received TMI at birth in both years and at 49 ± 1.3 days of age in year 1. The TMI increased (p = 0.01) liver Zn …

Impact Of Cover Crop Monocultures And Mixtures On Organic Carbon Contents Of Soil Aggregates, Daphne Topps, Imam Ul Khabir, Hagir Abdelmagid, Todd Jackson, Javed Iqbal, Boakai K. Robertson, Zahida Hassan Pervaiz, Muhammad Saleem

Department of Agronomy and Horticulture: Faculty Publications

Cover crops are considered an integral component of agroecosystems because of their positive impacts on biotic and abiotic indicators of soil health. At present, we know little about the impact of cover crop types and diversity on the organic carbon (OC) contents of different soil aggregate-size classes. In this study, we investigated the effect of cover plant diversity on OC contents of different soil aggregates, such as macro- (<2000–500 µm), meso- (<500–250 µm), and micro-aggregates (<250 µm). Our experiment included a total of 12 experimental treatments in triplicate; six different monoculture treatments such as chickling vetch (Vicia villosa), crimson clover (Trifolium incarnatum), hairy vetch (Vicia villosa), field peas (Pisum sativum), oilseed radish (Raphanus sativus), and mighty mustard (Brassica juncea), and their three- and six-species mixture treatments, including one unplanted control treatment. We performed this experiment usingdeep pots that contained soil collected from a corn-soybean rotation field. At vegetative maturity of cover plants (about 70 days), we took soil samples, and the soil aggregate-size classes were separated by the dry sieving. We hypothesized that cover crop type and diversity will improve OC contents of different soil aggregate-size classes. We found that cover plant species richness weakly positively increased OC contents of soil macro-aggregates (p = 0.056), whereas other aggregate-size classes did not respond to cover crop diversity gradient. Similarly, the OC contents of macroaggregates varied significantly (p = 0.013) under cover crop treatments, though neither monoculture nor mixture treatments showed significantly higher OC contents than the control treatment in this short-term experiment. Interestingly, the inclusion of hairy vetch and oilseed radish increased and decreased the OC contents of macro- and micro-aggregates, respectively. Moreover, we found a positive correlation between shoot biomass and OC contents of macroaggregates. Overall, our results suggest that species-rich rather than -poor communities may improve OC contents of soil macroaggregates, which constitute a major portion of soil systems, and are also considered as important indicators of soil functions.

Workload, Megan Paul

Umbrella Summaries

What is workload?

There is no one, universally accepted definition of workload. A broad definition is that it is “an all-encompassing term that includes any variable reflecting the amount or difficulty of one’s work” (Bowling & Kirkendall, 2012, p. 222). Quantitative workload is the label for the amount of work done, and qualitative workload is the label for the difficulty of work (Bowling & Kirkendall, 2012). Further, there is a distinction between mental and physical workload and between objective and perceived workload (Bowling & Kirkendall, 2012). A variety of approaches have been used to measure objective workload. A common one …

Weight Status Perceptions And Food Choice, Christopher R. Gustafson

Cornhusker Economics

Does your weight status—whether your height and weight put you into the normal weight, overweight, or obese category—predict your food choices, or even the types of food you’ll pay attention to when making a choice? What about the weight status you perceive yourself to be? These are important questions because the percentage of the population that is overweight or obese in the U.S.—and world-wide—has been increasing for decades despite a wide range of efforts aimed at slowing/reversing its growth. In the U.S., over 70 percent of the population is overweight or obese. High body weight has numerous consequences for individuals …

Using Comics As A Tool To Facilitate Critical Reflective Practice In Professional Education, Oliver Mcgarr, Guillermina Gavaldon, Francisco Manuel Sáez De Adana Herrero

SANE journal: Sequential Art Narrative in Education

This paper reports on the use of comics to help facilitate reflection on one’s past as part of an early childhood education degree programme in Spain. It is common in professional education programmes in the health and education fields to encourage students to reflect on their past in order to explore how this has shaped their development and how it has influenced their career decisions. A challenge with more traditional forms of written reflections in this area is that they often become simple descriptions without any critical reflection on past experiences. To address this, the research reported here aimed to …

Associations Between Community Built Environments With Early Care And Education Classroom Physical Activity Practices And Barriers, Bethany D. Williams, Susan B. Sisson, Dipti Dev, Bryce Lowery, Diane Horm, Janis Campbell, Denise Finneran, Jennifer Graef-Downard, Linda Whaley

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

The influence of community-built environments on physical activity (PA) support in Early Childhood Education settings (ECEs) is unknown. The purpose of this cross-sectional study was to determine associations between community PA environments and ECE classroom PA practices. We included licensed Oklahoma ECE directors serving 3-to-5-year-old children. Parks and playground locations were exported from Google Earth. NationalWalkability Index was derived from 2010 US Census data. ArcMap 10.6 was used to geocode ECE locations, which were within an Activity Desert if no parks/playgrounds were located within a 1-mile radius or if Walkability Index was 10.5 or below. Classroom PA practices were determined …

Invader Removal Triggers Competitive Release In A Threatened Avian Predator, J. David Wiens, Katie M. Dugger, J. Mark Higley, Damon B. Lesmeister, Alan B. Franklin, Keith A. Hamm, Gary C. White, Krista E. Dilione, David C. Simon, Robin R. Bown, Peter C. Carlson, Charles B. Yackulic, James D. Nichols, James E. Hines, Raymond J. Davis, David W. Lamphear, Christopher Mccafferty, Trent L. Mcdonald, Stan G. Sovern

United States Department of Agriculture Wildlife Services: Staff Publications

Changes in the distribution and abundance of invasive species can have far-reaching ecological consequences. Programs to control invaders are common but gauging the effectiveness of such programs using carefully controlled, large-scale field experiments is rare, especially at higher trophic levels. Experimental manipulations coupled with long-term demographic monitoring can reveal the mechanistic underpinnings of interspecific competition among apex predators and suggest mitigation options for invasive species. We used a large-scale before-after control-impact removal experiment to investigate the effects of an invasive competitor, the barred owl (Strix varia), on the population dynamics of an iconic old-forest native species, the northern spotted owl …

A Multi-Approach And Multi-Scale Platform To Model Cd4+ T Cells Responding To Infections, Kenneth Y. Wertheim, Bhanwar Lal Puniya, Alyssa La Fleur, Ab Rauf Shah, Matteo Barberis, Tomáš Helikar

Department of Biochemistry: Faculty Publications

Immune responses rely on a complex adaptive system in which the body and infections interact at multiple scales and in different compartments. We developed a modular model of CD4+ T cells, which uses four modeling approaches to integrate processes at three spatial scales in different tissues. In each cell, signal transduction and gene regulation are described by a logical model, metabolism by constraint-based models. Cell population dynamics are described by an agent-based model and systemic cytokine concentrations by ordinary differential equations. A Monte Carlo simulation algorithm allows information to flow efficiently between the four modules by separating the time scales. …

Classifying Ingestive Behavior Of Dairy Cows Via Automatic Sound Recognition, Guoming Li, Yijie Xiong, Qian Du, Zhengxiang Shi, Richard S. Gates

Department of Animal Science: Faculty Publications

Determining ingestive behaviors of dairy cows is critical to evaluate their productivity and health status. The objectives of this research were to (1) develop the relationship between forage species/heights and sound characteristics of three different ingestive behaviors (bites, chews, and chew-bites); (2) comparatively evaluate three deep learning models and optimization strategies for classifying the three behaviors; and (3) examine the ability of deep learning modeling for classifying the three ingestive behaviors under various forage characteristics. The results show that the amplitude and duration of the bite, chew, and chew-bite sounds were mostly larger for tall forages (tall fescue and alfalfa) …

Pilot-Scale H2S And Swine Odor Removal System Using Commercially Available Biochar, Kyoung S. Ro, Brian Woodbury, Mindy Spiehs, Ariel A. Szogi, Philip J. Silva, Okhwa Hwang, Sungback Cho

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

Although biochars made in laboratory seem to remove H2S and odorous compounds effectively, very few studies are available for commercial biochars. This study evaluated the efficacy of a commercial biochar (CBC) for removing H2S and odorous volatile organic compounds (VOCs). We found that the well-known Ergun equation may not be adequate in predicting pressure drop for properly sizing a ventilation system. The H2S breakthrough adsorption capacity of the CBC was 2.51 mg/g under humid conditions, which was much higher than that for dry conditions. The breakthrough capacity increased with the influent concentration of H2S. The efficacy of a pilot-scale biochar …

The Ovarian Follicle Of Ruminants: The Path From Conceptus To Adult, Jennifer L. Juengel, Robert A. Cushman, Joëlle Dupont, Stéphane Fabre, Richard G. Lea, Graeme B. Martin, Francesca Mossa, Janet L. Pitman, Christopher A. Price, Peter Smith

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

This review resulted from an international workshop and presents a consensus view of critical advances over the past decade in our understanding of follicle function in ruminants. The major concepts covered include: (1) the value of major genes; (2) the dynamics of fetal ovarian development and its sensitivity to nutritional and environmental influences; (3) the concept of an ovarian follicle reserve, aligned with the rise of anti-Müllerian hormone as a controller of ovarian processes; (4) renewed recognition of the diverse and important roles of theca cells; (5) the importance of follicular fluid as a microenvironment that determines oocyte quality; (6) …

Evolution Of The Sheep Industry And Genetic Research In The United States: Opportunities For Convergence In The Twenty-First Century, J. W. Thorne, B. M. Murdoch, B. A. Freking, R. R. Redden, Thomas W. Murphy, J. B. Taylor, Harvey D. Blackburn

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

The continuous development and application of technology for genetic improvement is a key element for advancing sheep production in the United States. The US sheep industry has contracted over time but appears to be at a juncture where a greater utilization of technology can facilitate industry expansion to new markets and address inefficiencies in traditional production practices. Significant transformations include the increased value of lamb in relation to wool, and a downtrend in large-scale operations but a simultaneous rise in small flocks. Additionally, popularity of hair breeds not requiring shearing has surged, particularly in semi-arid and subtropical US environments. A …

Frontline Job Redesign Louisiana - Intervention Overview, Quality Improvement Center For Workforce Development

Other QIC-WD Products

The Louisiana Department of Children and Family Services (DCFS), Child Welfare Division (CWD), in collaboration with the QIC-WD, implemented a frontline job redesign as its intervention. (For more information see Intervention Background.) An implementation team, including QIC-WD representatives, CWD leadership, child welfare staff from all levels of practice, and human resources and civil service representatives undertook development of the job redesign. Development of the intervention was guided by the following principles:

• children and families are the center and focus of the practice,
• a dual focus on prevention and permanency, requiring increased knowledge and skills in providing both parents and …

Addressing Work-Related Traumatic Stress Nebraska - Evaluation Overview, Quality Improvement Center For Workforce Development

Other QIC-WD Products

Research Questions

The site-level evaluation for Nebraska was designed to understand implementation of and outcomes related to CFS Strong and its component parts, including Resilience Alliance (RA), Peer Support Groups (PSG) and Restoring Resiliency Response© (RRR). Relationships among intervention components, outputs, and outcomes were mapped out in Nebraska’s logic model. Initial research questions of interest included how much participants were satisfied with the RA, PSG, and RRR sessions they attended. Furthermore, for RA, the evaluation measured how much facilitators adhered to the manualized RA program, whether group dynamics (e.g., engagement and conflict) were positive or negative, and how …

Influence Of Estradiol On Bovine Trophectoderm And Uterine Gene Transcripts Around Maternal Recognition Of Pregnancy, Emmalee J. Northrop-Albrecht, Jerica J.J. Rich, Robert A. Cushman, Runan Yao, Xijin Ge, George A. Perry

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

Embryo survival and pregnancy success is increased among animals that exhibit estrus prior to fixed time-artificial insemination, but there are no differences in conceptus survival to d16. The objective of this study was to determine effects of preovulatory estradiol on uterine transcriptomes, select trophectoderm (TE) transcripts, and uterine luminal fluid proteins. Beef cows/heifers were synchronized, artificially inseminated (d0), and grouped into either high (highE2) or low (lowE2) preovulatory estradiol. Uteri were flushed (d16); conceptuses and endometrial biopsies (n = 29) were collected. RNA sequencing was performed on endometrium. Real-time polymerase chain reaction (RT-PCR) was performed on TE (n = 21) …

Examining Correlates Of Feeding Practices Among Parents Of Preschoolers, Deepa Srivastava, Lucy R. Zheng, Dipti Dev

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

Background: Parent feeding practices play a critical role in children’s eating behaviors. Limited research has explored child-level correlates of parent feeding practices.

Aim: To identify correlates of feeding practices (responsive and controlling) among parents of preschoolers in the United States.

Methods: Participants included parents (n = 273) of preschoolers (3–5 years), recruited from early care and education settings (n = 24) located in a metropolitan city in the US. Analysis included descriptives, correlations, and multiple regression.

Results: For responsive feeding practices, positive associations included child’s weight with unintentional modeling (β = .17, 95% CI [0.12, 0.53]), child vegetable …

Toward A Gender-Responsive, Participatory Community-Based Child Protection System – Lessons From Victim-Survivors And Service Providers Of A Safe Home And A Community In The Philippines, Gundelina Velazco

Human Trafficking: Data and Documents

This research project gathered from victims, survivors and community people their experience and knowledge of sexual exploitation and trafficking of children, their perception of circumstances that lead to exploitation, as well as measures that can stop it. From their responses, the aim was to formulate a framework of a gender responsive, participatory community-based child protection system, test this framework, and formulate a position statement based on the findings and lessons learned.

A survey instrument with content, age, and gender validation and a communityvalidated checklist of indicators of being sexually exploited, were the tools used to gather data from victims and …

Cytokines: From Clinical Significance To Quantification, Chao Liu, Dewei Chu, Kourosh Kalantar-Zadeh, Jacob George, Howard A. Young, Guozhen Liu

United States Public Health Resources

Cytokines are critical mediators that oversee and regulate immune and inflammatory responses via complex networks and serve as biomarkers for many diseases. Quantification of cytokines has significant value in both clinical medicine and biology as the levels provide insights into physiological and pathological processes and can be used to aid diagnosis and treatment. Cytokines and their clinical significance are introduced from the perspective of their pro- and anti-inflammatory effects. Factors affecting cytokines quantification in biological fluids, native levels in different body fluids, sample processing and storage conditions, sensitivity to freeze-thaw, and soluble cytokine receptors are discussed. In addition, recent advances …

Using Contextual Bandits To Improve Traffic Performance In Edge Network, Aziza Al Zadjali

School of Computing: Dissertations, Theses, and Student Research

Edge computing network is a great candidate to reduce latency and enhance performance of the Internet. The flexibility afforded by Edge computing to handle data creates exciting range of possibilities. However, Edge servers have some limitations since Edge computing process and analyze partial sets of information. It is challenging to allocate computing and network resources rationally to satisfy the requirement of mobile devices under uncertain wireless network, and meet the constraints of datacenter servers too. To combat these issues, this dissertation proposes smart multi armed bandit algorithms that decide the appropriate connection setup for multiple network access technologies on the …

Nebline, August 2021

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

The Myths & Facts of Head Lice

Coping with Picky Eating

Recipes of the Month

6 Common Composting Questions

Garden Guide: Things to do this Month

Tips for a Fun and Educational Day at the Fair

Kissing Bugs in Nebraska

Lancaster County Super Fair, July 29-Aug. 7, 2021

Heart of 4-H Volunteer Award

4-H Teen Council Invites New Members

4-H Gold Tournament Fundraiser, Oct. 3

4-H’ers Test Family and Consumer Science Skills at Life Challenge

4-H Clover College: 48 Workshops of Hands-on Learning!

4-H’ers Test Their Knowledge of Animals and Decision-Making Skills at PASE

4-H District Horse Results

4-H Announcements …

Synthesizing Inactivation Efficacy Of Treatments Against Bacillus Cereus Through Systematic Review And Meta-Analysis And Evaluating Inactivation Efficacy Of Commercial Cleaning Products Against B. Cereus Biofilms And Spores Using Standardized Methods, Minho Kim

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

Bacillus cereus is ubiquitous and can be easily carried in food processing facilities. It is problematic because it can survive various treatments such as heat, radiation, and chemical cleaning by forming spores and biofilms. Some review papers have discussed inactivation efficacies of different treatments against B. cereus, but they are narrative without quantitative summaries. This study first aimed to find effective and food industry-applicable treatment candidates against B. cereus spores and biofilms by synthesizing and comparing the efficacy of treatments using systematic review and meta-analysis. After screening, 17 studies were included, but only nine studies were used for meta-analysis …

Studies On Milling And Baking Quality And In Vitro Protein Digestibility Of Historical And Modern Wheats, Sujun Liu

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

There is considerable controversy among the public and the scientific community about whether modern wheats are harmful for human health and responsible for the increase of Celiac disease compared with historical varieties. Therefore, the milling and baking quality, protein digestibility, and protein composition of historical and modern wheats adapted to the Great Plains of the US were evaluated in this thesis. One objective of this thesis was to determine how end-use quality of wheat changed with wheat cultivar release year. Kernel physical characteristics, milling yield, whole-wheat flour quality, flour protein content, mixing quality and baking quality of 23 hard winter …

Making Sense Of Inclusive Leadership In Public Higher Education: An Interpretative Phenomenological Analysis, Herbert L. Thompson Iii

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

This study’s purpose was to generate a context-specific analysis and description of the inclusion process at a Midwestern university, and how leaders make sense of said process. The participants in this study are members of an inclusion training program; these participants represent the perspective of stakeholders as well as designated leadership for organizational inclusion. This study utilized Interpretative Phenomenological Analysis (IPA). Data generation occurred through a series of semi-structured interviews. Analysis of data provided a detailed description of the sense making of inclusive leadership is provided to explain how educators experience the phenomenon contextually. Five superordinate themes emerged from this …

Starting School Socially And Behaviorally Ready: The Impacts Of Malleable Home- And School-Based Relationships And Community Setting, Rachel Schumacher

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

Children growing up in disadvantage often enter school without the requisite social, emotional, and behavioral skills to be successful. Considering the importance of social-emotional skills for school and later life success, it is critical to understand factors associated with social-emotional development across the transition to elementary school. The current study will utilize an ecological approach to identify the influence of malleable home- (i.e., parent-child relationship [microsystem]) and school-based (i.e., home-school connection [mesosystem]) contextual factors over time (chronosystem) on children’s school readiness and social-emotional adjustment to early elementary school, and uncover the role of community setting (exosystem) in understanding children’s school …

Development Of High Value Oil Traits Using The Model Oilseed Crop Camelina Sativa, Evan Updike

Department of Biochemistry: Dissertations, Theses, and Student Research

Plant oils are an important source of food, fuel, and feed in our society today. The oil found in the seeds of plants is composed almost entirely of triacylglycerol (TAG) molecules, which consist of three fatty acids esterified to a glycerol backbone. As crude oil supplies decline, vegetable oils are gaining traction as a renewable substitute to petroleum-based materials in fuels, lubricants, and specialty oleochemicals. However, as it currently stands vegetable oils do not possess the properties necessary to fill the void of a petroleum free world.

To address this problem, plant biotechnologists have done extensive work on genetic engineering …