Digital Commons Network^™

The 5e Learning Cycle: What's The Story?, Kelsey Lipsitz, Dante Cisterna, Deborah Hanuscin

School of Natural Resources: Faculty Publications

No abstract provided.

Multi-Scale Habitat Selection By Cow Moose (Alces Alces) At Calving Sites In Central Ontario, A.A.D. Mclaren, J. F. Benson, B.R. Patterson

School of Natural Resources: Faculty Publications

No abstract provided.

Ungulate Predation And Ecological Roles Of Wolves And Coyotes In Eastern North America, John F. Benson, Karen M. Loveless, Linda Y. Rutledge, Brent R. Patterson

School of Natural Resources: Faculty Publications

Understanding the ecological roles of species that influence ecosystem processes is a central goal of ecology and conservation biology. Eastern coyotes (Canis latrans) have ascended to the role of apex predator across much of eastern North America since the extirpation of wolves (Canis spp.) and there has been considerable confusion regarding their ability to prey on ungulates and their ecological niche relative to wolves. Eastern wolves (C. lycaon) are thought to have been the historical top predator in eastern deciduous forests and have previously been characterized as deer specialists that are inefficient predators of …

Pathways To Increasing Farmer-Led Investments In Sustainable Agricultural Water Management In Sub-Saharan Africa, Douglas J. Merrey, Peter G. Mccornick, Molly C. Nance

Daugherty Water for Food Global Institute: Faculty Publications

Without a transformative leap forward in the use of irrigation, Africa will continue falling short in the struggle to feed its growing population, improve its people’s nutrition, grow its economies, adapt to the impacts of climate change, and eliminate poverty. While Africans must lead this transformation for it to be successful, the international community can help African countries substantially increase the use of more productive and sustainable water management practices and unlock the potential of farmer-led irrigated agriculture. Achieving highly productive irrigated agricultural systems in Africa requires an enabling environment that facilitates the full engagement of farmers, public and private …

Electronic Media Time And Sedentary Behaviors In Children: Findings From The Built Environment And Active Play Study In The Washington Dc Area, Jennifer D. Roberts, Lindsey Rodkey, Rashawn Ray, Brandon Knight, Brian E. Saelens

Uniformed Services University of the Health Sciences

An objective of the Built Environment and Active Play (BEAP) Study was to examine whether home built environment, bedroom electronic presence, parental rules and demographics predicted children's sedentary behavior (SB). In 2014, BEAP Study questionnaires were mailed to 2000 parents of children (7–12 years)within the Washington DC area. SB-Duration (hours/day) and SB-Frequency (days/week) were assessed by two questions with multiple subparts relating to SB activity type (e.g. car riding) and SB companionship (e.g. friends). Built environment, bedroom electronic presence, parental rules and demographic data were obtained through questionnaire items and ordered logistic regression models were used to examine whether these …

Research And Creative Activity, July 1, 2016-June 30, 2017: Major Sponsored Programs And Faculty Awards For Research And Creative Activity, University Of Nebraska-Lincoln, Office Of Research And Economic Development, University Of Nebraska-Lincoln

Office of Research and Economic Development: Publications

Introduction by Steve Goddard, Interim Vice Chancellor for Research and Economic Development, University of Nebraska-Lincoln:

This booklet highlights successes in research, scholarship and creative activity of the University of Nebraska–Lincoln faculty during the fiscal year July 1, 2016-June 30, 2017.

It lists investigators, project titles and funding sources on major grants and sponsored program awards received during the year; fellowships and other recognitions and honors bestowed on our faculty; books published by faculty; performances, exhibitions and other creative activity by our faculty; and intellectual property licenses and patents issued for the products of Nebraska research.

This booklet is an impressive …

A System-Level Approach To Overweight And Obesity In The Veterans Health Administration, Susan D. Raffa, Matthew L. Maciejewski, Lindsey E. Zimmerman, Laura J. Damschroder, Paul A. Estabrooks, Ronald Ackermann, Adam G. Tsai, Trina Histon, Michael G. Goldstein

United States Department of Veterans Affairs: Publications

Healthcare systems are challenged by steady increases in the number of patients who are overweight and obese. Large-scale, evidence-based behavioral approaches for addressing overweight and obesity have been successfully implemented in systems such as the Veterans Health Administration (VHA). These population-based interventions target reduction in risk for obesity-associated conditions through lifestyle change and weight loss, and are associated with modest weight loss. Despite the fact that VHA has increased the overall reach of these behavioral interventions, the number of high-risk overweight and obese patients continues to rise. Recommendations for weight loss medications and bariatric surgery are included in clinical practice …

Variation In Organ-Specific Pik3ca And Kras Mutant Levels In Normal Human Tissues Correlates With Mutation Prevalence In Corresponding Carcinomas, Barbara L. Parsons, Karen L. Mckim, Meagan B. Myers

United States Food and Drug Administration: Publications

Large-scale sequencing efforts have described the mutational complexity of individual cancers and identified mutations prevalent in different cancers. As a complementary approach, allele specific competitive blocker PCR (ACB-PCR) is being used to quantify levels of hotspot cancer driver mutations (CDMs) with high sensitivity, to elucidate the tissue-specific properties of CDMs, their occurrence as tumor cell subpopulations, and their occurrence in normal tissues. Here we report measurements of PIK3CA H1047R mutant fraction (MF) in normal colonic mucosa, normal lung, colonic adenomas, colonic adenocarcinomas, and lung adenocarcinomas. We report PIK3CA E545K MF measurements in those tissues, as well as in normal breast, …

Cyclosporine Exacerbates Ketamine Toxicity In Zebrafish: Mechanistic Studies On Drug–Drug Interaction, Bonnie L. Robinson, Melanie Dumas, Syed F. Ali, Merle G. Paule, Qiang Gu, Jyotshna Kanungo

United States Food and Drug Administration: Publications

Cyclosporine A (CsA) is an immunosuppressive drug commonly used in organ transplant patients to prevent allograft rejections. Ketamine is a pediatric anesthetic that noncompetitively inhibits the calcium-permeable N-methyl-D-aspartic acid receptors. Adverse drug–drug interaction effects between ketamine and CsA have been reported in mammals and humans. However, the mechanism of such drug–drug interaction is unclear. We have previously reported adverse effects of combination drugs, such as verapamil/ketamine and shown the mechanism through intervention by other drugs in zebrafish embryos. Here, we show that ketamine and CsA in combination produce developmental toxicity even leading to lethality in zebrafish larvae when exposure began …

Detection Of Allergen Markers In Food: Analytical Methods, Girdhari M. Sharma, Sefat E. Khuda, Christine H. Parker, Anne C. Eischeid, Marion Pereira

United States Food and Drug Administration: Publications

Food allergens are proteins that are well tolerated by most, but can cause severe reactions in sensitive individuals. Since there is no cure for food allergy, strict adherence to an allergen-free diet is the only safe choice currently available for allergic consumers. Accurate food labeling can help consumers avoid foods containing an allergenic ingredient. Regulatory agencies have mandated the labeling of major food allergens on packaged foods to help with safe food choices. However, the inadvertent presence of an allergen in food due to cross-contact and labeling error can jeopardize consumer health. Analytical methods are developed for allergen detection and …

Current Analytical Techniques For Food Lipids, Cynthia T. Srigley, Magdi M. Mossoba

United States Food and Drug Administration: Publications

Thee analysis of food lipids presents significant challenges due to the wide variety of sample matrices, large range of total fat contents, and complex compositions of fatty acids. This is chapter reviews conventional analytical techniques for the quantification of total fat and fatty acids in foods and food ingredients, including the gravimetric determination of total fat, the calculation of fat and fatty acids using gas chromatography (GC), and the analysis of proximates content (i.e., fat, protein, carbohydrate, moisture, and ash) by Fourier transform infrared (FTIR) spectroscopy. Current official methods of analysis are evaluated and the use of certified reference materials …

Multiple Imputation To Evaluate The Impact Of An Assay Change In National Surveys, Maya Sternberg

United States Food and Drug Administration: Publications

National health surveys, such as the National Health and Nutrition Examination Survey, are used to monitor trends of nutritional biomarkers. These surveys try to maintain the same biomarker assay over time, but there are a variety of reasons why the assay may change. In these cases, it is important to evaluate the potential impact of a change so that any observed fluctuations in concentrations over time are not confounded by changes in the assay. To this end, a subset of stored specimens previously analyzed with the old assay is retested using the new assay. These paired data are used to …

Rapid Testing Of Food Matrices For Bacillus Cereus Enterotoxins, Sandra M. Tallent, Jennifer M. Hait, Ann M. Knolhoff, Reginald W. Bennett, Thomas S. Hammack, Timothy R. Croley

United States Food and Drug Administration: Publications

Nine different food products frequently associated with Bacillus cereus outbreaks were chosen as representative matrices to be evaluated with end-point polymerase chain reaction (PCR), enzyme linked immunosorbent assay, lateral flow device and mass spectrometry for detection of enterotoxins associated with human illness. Testing was performed on food portions inoculated with a bacterial strain and incubated at 30C for either 5 h or 24 h. A screening end-point multiplex PCR targeting enterotoxin genes including the emetic toxin and three diarrheal toxins, hemolytic hemolysin BL (Hbl), nonhemoltyic enterotoxin (Nhe), and cytolysin K. Commercially available kits were used to determine the presence/absence of …

Antiemetic Use Among Pregnant Women In The United States: The Escalating Use Of Ondansetron, Lockwood G. Taylor, Steven T. Bird, Leyla Sahin, Melissa S. Tassinari, Patty Greene, Marsha E. Reichman, Susan E. Andrade, Katherine Haffenreffer, Sengwee Toh

United States Food and Drug Administration: Publications

Purpose To examine ondansetron use in pregnancy in the context of other antiemetic use among a large insured United States population of women delivering live births.

Methods We assessed ondansetron and other antiemetic use among pregnant women delivering live births between 2001 and 2015 in 15 data partners contributing data to the Mini-Sentinel Distributed Database. We identified live birth pregnancies using a validated algorithm, and all forms of ondansetron and other available antiemetics were identified using National Drug Codes or procedure codes. We assessed the prevalence of antiemetic use by trimester, calendar year, and formulation.

Results In over 2.3 million …

Food Safety Traceability, Yimin Wei, Boli Guo, Hongyan Liu, Shuai Wei, Jianrong Zhang

United States Food and Drug Administration: Publications

With globalized economics, it is becoming more frequent to trade food across country and regional borders, which leads to expanding and spreading of all kinds of food safety incidents and hazards. Mad cow disease, foot and mouth disease, avian flu and other zoonotic diseases pose a grave threat to food safety and human health, causing serious economic losses for food industries and causing social panic at the same time. In order to reduce the losses caused by such serious zoonotic diseases, as well as to ensure food safety, many countries have started to implement food safety traceability systems. The European …

Quality By Design: Process Trajectory Development For A Dynamic Pharmaceutical Coprecipitation Process Based On An Integrated Real‐Time Process Monitoring Strategy, Huiquan Wu, Mansoor A. Khan

United States Food and Drug Administration: Publications

Increasing prevalence of poorly water‐soluble drugs in pharmaceutical development provides notable risks of new products demonstrating low and erratic bioavailability. This dissolution‐limited bioavailability may have consequences for safety and efficacy, particularly for drugs delivered by the oral route of administration. Several novel drug delivery technologies have been developed to improve drug solubility, dissolution rates, and bioavailability. Among those are solid dispersion, nanotechnology, supercritical fluid technology, lipid‐based technology, and crystal engineering. Although these strategies are available for enhancing the bioavailability of drugs with low aqueous solubility, the success of these approaches is not yet guaranteed and is greatly dependent on the …

The Impact Of The Boxed Warning On The Duration Of Use For Depot Medroxprogesterone Acetate, Efe Eworuke, Joo-Yeon Lee, Lisa Soule, Vaishali Popat, David G. Moeny

United States Food and Drug Administration: Publications

Objective The objective of this study was to examine the impact of the Food and Drug Administration’s boxed warning on the utilization of depot medroxyprogesterone (DMPA).

Methods From the IMS Lifelink data (2001–2009), we identified DMPA and oral combined hormonal contraceptive (CHC) users without a prescription claim 6 months before and after the first and last claim. Episodes were defined as all contiguous claims with no more than 90- day DMPA or 30-day CHC between claims. Days’ supply (CHC) and 90-day duration (DMPA) was used to determine episodes. We used interrupted time series to evaluate changes in the mean episode …

Modeling And Statistical Issues Related To Salmonella In Low Water Activity Foods, Sofia M. Santillana Farakos, Michelle Danyluk, Donald Schaffner, Régis Pouillot, Linda J. Harris, Bradley P. Marks

United States Food and Drug Administration: Publications

The presence and survival of Salmonella in low water activity (a_w) foods continues to pose a challenge for the food industry. Peer‐reviewed literature data on prevalence and levels of contamination of Salmonella in low water activity foods in the United States are limited. Available published data include those on: Salmonella contamination on nuts and peanuts (Calhoun et al., 2013), almonds (Danyluk et al., 2007; Bansal et al., 2010), pecans (Brar, Strawn, and Danyluk, 2016), and walnuts (Davidson et al., 2015); prevalence and levels of Salmonella on spices (Van Doren et al., 2013); as …

Disparities In Hypertension And Cardiovascular Disease In Blacks: The Critical Role Of Medication Adherence, Keith C. Ferdinand, Kapil Yadav, Samar A. Nasser, Helene D. Clayton-Jeter, John Lewin, Dennis R. Cryer, Fortunato Fred Senatore

United States Food and Drug Administration: Publications

Blacks are two to three times as likely as whites to die of preventable heart disease and stroke. Declines in mortality from heart disease have not eliminated racial disparities. Control and effective treatment of hypertension, a leading cause of cardiovascular disease, among blacks is less than in whites and remains a challenge. One of the driving forces behind this racial/ethnic disparity is medication nonadherence whose cause is embedded in social determinants. Eight practical approaches to addressing medication adherence with the potential to attenuate disparities were identified and include: (1) patient engagement strategies, (2) consumer-directed health care, (3) patient portals, (4) …

Current Practices In Corrosion, Surface Characterization, And Nickel Leach Testing Of Cardiovascular Metallic Implants, Srinidhi Nagaraja, Matthew Di Prima, David Saylor, Erica Takai

United States Food and Drug Administration: Publications

In an effort to better understand current test practices and improve nonclinical testing of cardiovascular metallic implants, the Food and Drug Administration (FDA) held a public workshop on Cardiovascular Metallic Implants: corrosion, surface characterization, and nickel leaching. The following topics were discussed: (1) methods used for corrosion assessments, surface characterization techniques, and nickel leach testing of metallic cardiovascular implant devices, (2) the limitations of each of these in vitro tests in predicting in vivo performance, (3) the need, utility, and circumstances when each test should be considered, and (4) the potential testing paradigms, including acceptance criteria for each test. In …

High Throughput Quantification Of Apolipoproteins A-I And B-100 By Isotope Dilution Ms Targeting Fast Trypsin Releasable Peptides Without Reduction And Alkylation, Bryan A. Parks, David M. Schieltz, Michael L. Andrews, Michael S. Gardner, John C. Rees, Christopher A. Toth, Jeffrey I. Jones, Lisa G. Mcwilliams, Zsuzsanna Kuklenyik, James L. Pirkle, John R. Barr

United States Food and Drug Administration: Publications

Purpose: Apolipoprotein A-I (ApoA-I) and apolipoprotein B-100 (ApoB-100) are amphipathic proteins that are strong predictors of cardiovascular disease risk. The traceable calibration of apolipoprotein assays is a persistent challenge, especially for ApoB-100, which cannot be solubilized in purified form.

Experimental design: A simultaneous quantitation method for ApoA-I and ApoB-100 was developed using tryptic digestion without predigestion reduction and alkylation, followed by LC separation coupled with isotope dilution MS analysis. The accuracy of the method was assured by selecting structurally exposed signature peptides, optimal choice of detergent, protein: enzyme ratio, and incubation time. Peptide calibrators were value assigned by isobaric tagging …

2016-17 Unopa Annual Report

UNOPA: Annual Reports

No abstract provided.

Generalized Confidence Intervals Compatible With The Min Test For Simultaneous Comparisons Of One Subpopulation To Several Other Subpopulations, Julia N. Soulakova

Department of Statistics: Faculty Publications

A problem where one subpopulation is compared to several other subpopulations in terms of means with the goal of estimating the smallest difference between the means commonly arises in biology, medicine, and many other scientific fields. A generalization of Strassburger, Bretz and Hochberg (2004) approach for two comparisons is presented for cases with three and more comparisons. The method allows constructing an interval-estimator for the smallest mean difference, which is compatible with the Min test. An application to a fluency-disorder study is illustrated. Simulations confirmed adequate probability coverage for normally distributed outcomes for a number of designs.

Research At Nebraska, 2016-2017 Report, University Of Nebraska-Lincoln

Office of Research and Economic Development: Publications

This publication is a snapshot of the fiscal year’s activities. To read more stories about research and creativity at Nebraska, visit the online edition at https://research.unl.edu/annualreport/2017. Additional multimedia are available for many stories.

Microbial Ecology Of Fresh Vegetables, J. Zheng, A. De Jesus, S. Sahu, A. E. Hayford, Y. Luo, A. R. Datta, E. W. Brown, R. Bell

United States Food and Drug Administration: Publications

The total consumption of fresh and processed vegetables has exceeded 123 kg per capita in the United States and 118 kg per capita in the European Union (http://www.helgilibrary.com/ indicators/index/vegetable‐consumption‐percapita) in 2009. Changes in lifestyles and consumption trends have prompted the sustained growth of fresh‐cut or minimally processed vegetables that are fresh and ready‐to‐eat (RTE). In 2011, for example, total US fresh‐cut produce sales through both food service and retail channels were estimated to surpass $27 billion (Cook et al., 2012).

Nebline, January 2017

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Extension 2016 Highlights

Food & Health

Farm & Acreage

Horticulture

Pests & Wildlife

4-H & Youth

Early Childhood

and other extension news and events

Gene Expression Profiling Of Bovine Ovarian Follicular And Luteal Cells Provides Insight Into Cellular Identities And Functions, Sarah Romereim, Adam F. Summers, William E. Pohlmeier, Pan Zhang, Xiaoying Hou, Heather A. Talbott, Robert A. Cushman, Jennifer R. Wood, John S. Davis, Andrea S. Cupp

Department of Animal Science: Faculty Publications

After ovulation, somatic cells of the ovarian follicle (theca and granulosa cells) become the small and large luteal cells of the corpus luteum. Aside from known cell type-specific receptors and steroidogenic enzymes, little is known about the differences in the gene expression profiles of these four cell types. Analysis of the RNA present in each bovine cell type using Affymetrix microarrays yielded new cell-specific genetic markers, functional insight into the behavior of each cell type via Gene Ontology Annotations and Ingenuity Pathway Analysis, and evidence of small and large luteal cell lineages using Principle Component Analysis. Enriched expression of select …

The Neuropsychology Of Sport And Performance, Arthur C. Maerlender

Center for Brain, Biology, and Behavior: Faculty Publications

Neuropsychological theory has been a mainstay for understanding pathology within the brain-behavior context. However, our theories for predicting superior behavior are not as well developed. Sport neuropsychology was developed on the presumption that athletes represent a population in a relatively well-controlled environment for studying brain pathology due to injury. This study of pathology within a high-performance environment has been responsible for identifying the effects of mild traumatic brain injury (mTBI) on individual functioning. Far less attention has been paid to the other end of the performance continuum, and yet, viable brain-behavior hypotheses should hold true across the spectrum of function …

Psychological And Neural Contributions To Appetite Self-Regulation, Luke E. Stoeckel, Leann L. Birch, Todd Heatherton, Traci Mann, Christine Hunter, Susan Czajkowski, Lisa Onken, Paige K. Berger, Cary R. Savage

Center for Brain, Biology, and Behavior: Faculty Publications

Objective: This paper reviews the state of the science on psychological and neural contributions to appetite self-regulation in the context of obesity. Methods: Three content areas (neural systems and cognitive functions; parenting and early childhood development; and goal setting and goal striving) served to illustrate different perspectives on the psychological and neural factors that contribute to appetite dysregulation in the context of obesity. Talks were initially delivered at an NIH workshop consisting of experts in these three content areas, and then content areas were further developed through a review of the literature. Results: Self-regulation of appetite involves a complex interaction …

Lateral Hypothalamic Activity Indicates Hunger And Satiety States In Humans, Omid Talakoub, Raquel R. Paiva, Matija Milosevic, Marcelo Q. Hoexter, Ruth Franco, Eduardo Alho, Jessie Navarro, Jose F. Pereira Jr., Milos R. Popovic, Cary Savage, Antonio C. Lopes, Pedro Alvarenga, Durval Damiani, Manoel J. Teixeira, Euripides C. Miguel, Erich T. Fonoff, Marcelo C. Batistuzzo, Clement Hamani

Center for Brain, Biology, and Behavior: Faculty Publications

Lateral hypothalamic area (LHA) local field potentials (LFPs) were recorded in a Prader–Willi patient undergoing deep brain stimulation (DBS) for obesity. During hunger, exposure to food-related cues induced an increase in beta/ low-gamma activity. In contrast, recordings during satiety were marked by prominent alpha rhythms. Based on these findings, we have delivered alphafrequency DBS prior to and during food intake. Despite reporting an early sensation of fullness, the patient continued to crave food. This suggests that the pattern of activity in LHA may indicate hunger/satiety states in humans but attest to the complexity of conducting neuromodulation studies in obesity.