Digital Commons Network^™

Managing Agroecosystems For Soil Microbial Carbon Use Efficiency: Ecological Unknowns, Potential Outcomes, And A Path Forward, Cynthia M. Kallenbach, Matthew D. Wallenstein, Meagan E. Schipanksi, A. Stuart Grandy

Faculty Publications

Agricultural systems are increasingly managed for improving soil carbon (C) accumulation. However, there are limits to C returns in agricultural systems that constrain soil C accumulation capacity. Increasing the efficiency of how soil microbes process C is gaining interest as an important management strategy for increasing soil C and is a key feature of soil C dynamics in many new microbial-explicit models. A higher microbial C use efficiency (CUE) may increase C storage while reducing C system losses and is a fundamental trait affecting community assembly dynamics and nutrient cycling. However, the numerous ecological unknowns influencing CUE limit our ability …

Contribution Of Maize Polyamine And Amino Acid Metabolism Toward Resistance Against Aspergillus Flavus Infection And Aflatoxin Production., Rajtilak Majumdar, Rakesh Minocha, Matthew D. Lebar, Kanniah Rajasekaran, Stephanie Long, Carol H. Carter-Wientjes, Subhash C. Minocha, Jeffrey W. Cary

Faculty Publications

Polyamines (PAs) are ubiquitous polycations found in plants and other organisms that are essential for growth, development, and resistance against abiotic and biotic stresses. The role of PAs in plant disease resistance depends on the relative abundance of higher PAs [spermidine (Spd), spermine (Spm)] vs. the diamine putrescine (Put) and PA catabolism. With respect to the pathogen, PAs are required to achieve successful pathogenesis of the host. Maize is an important food and feed crop, which is highly susceptible to Aspergillus flavus infection. Upon infection, the fungus produces carcinogenic aflatoxins and numerous other toxic secondary metabolites that adversely affect human …

Antimicrobial Stewardship: Staff Nurse Knowledge And Attitudes, Katreena Collette Merrill, Sandra Forsyth Hanson, Sharon Sumner, Todd Vento, John Veillette, Brandono Webb

Faculty Publications

Background: Registered nurses are uniquely qualified to augment antimicrobial stewardship (AS) processes. However, the role of nursing in AS needs further development. More information is needed regarding gaps in registered nurse knowledge, attitudes toward AS, and how infection preventionists can help.

Methods: An online descriptive survey was deployed to a convenience sample of approximately 2,000 nurses at the bedside. The survey included 15 questions addressing: (1) overall knowledge of AS; (2) antimicrobial delivery; (3) knowledge and attitudes regarding antimicrobial use; (4) antimicrobial resistance; and (5) antimicrobial resources and education.

Results: Three hundred sixteen staff nurses from 3 hospitals (15.8%) responded …

Should Dodgeball Ever Die?, David C. Barney, Keven A. Prusak

Faculty Publications

When discussing the game of dodgeball, it is usually with fond memories and excitement for the thrill that came from the game. Then there is those that strongly disliked it for reasons that it was embarrassing, hurtful and just not fun. The game of dodgeball has been experienced by many students in their physical education (PE) classes, for better and for worse. The purpose of this study was to better understand the perceptions, experiences and opinions of recently-former K-12 students toward dodgeball in PE. The results of the study found that generally males enjoyed the game and felt it is …

Non-Canonical Amino Acid Labeling In Proteomics And Biotechnology, Aya M. Saleh, Kristen M. Wilding, Sarah Calve, Bradley Charles Bundy, Tamara L. Kinzer-Ursem

Faculty Publications

Metabolic labeling of proteins with non-canonical amino acids (ncAAs) provides unique bioorthogonal chemical groups during de novo synthesis by taking advantage of both endogenous and heterologous protein synthesis machineries. Labeled proteins can then be selectively conjugated to fluorophores, affinity reagents, peptides, polymers, nanoparticles or surfaces for a wide variety of downstream applications in proteomics and biotechnology. In this review, we focus on techniques in which proteins are residue- and site-specifically labeled with ncAAs containing bioorthogonal handles. These ncAA-labeled proteins are: readily enriched from cells and tissues for identification via mass spectrometry-based proteomic analysis; selectively purified for downstream biotechnology applications; or …

Statistical Viability Analysis Of United States Air Force Estimating Cost Factor For Sustainable Construction, Philip A. Ramsey, Diedrich Prigge, Torrey J. Wagner, Alfred E. Thal Jr.

Faculty Publications

Varying legislation and executive orders coupled with needs for energy resiliency have led the United States Air Force (USAF) to pursue sustainable construction. However, the limited understanding of initial costs to implement these changes have contributed to poor project cost estimating, resulting in 62 percent of USAF projects experiencing more than 5 percent cost growth. After reviewing 1628 USAF Military Construction (MILCON) construction projects in 922 category codes (CATCODEs), a twotailed t-test for populations with unequal variance was accomplished on the final normalized contract cost for 340 projects in 16 CATCODEs executed between 2002 and 2017. This analysis provides a …

Brønsted Acid-Catalyzed Formal [2 + 2 + 1] Annulation For The Modular Synthesis Of Tetrahydroindoles And Tetrahydrocyclopenta[ B]Pyrroles, Joshua A. Malone, Courtney E. Toussel, Frank R. Fronczek, Rendy Kartika

Faculty Publications

© 2019 American Chemical Society. An expedient synthesis of tetrahydroindoles and tetrahydrocyclopenta[b]pyrroles, highlighted by Brønsted acid catalyzed formal [2 + 2 + 1] annulation reaction, is reported. Using three readily accessible reaction components, i.e., an electrophilic species in silyloxyallyl cations and two distinct nucleophiles in silylenol ethers and amines, our chemistry enables the assembly and functionalization of these biologically important N-heterocycles in a highly modular manner.

Discovery Of Alpha-Gal-Containing Antigens In North American Tick Species Believed To Induce Red Meat Allergy, Gary Crispell, Scott P. Commins, Stephanie A. Archer-Hartman, Shailesh Choudhary, Guha Dharmarajan, Parastoo Azadi, Shahid Karim

Faculty Publications

Development of specific IgE antibodies to the oligosaccharide galactose-α-1, 3-galactose (α-gal) following tick bites has been shown to be the source of red meat allergy. In this study, we investigated the presence of α-gal in four tick species: the lone-star tick (Amblyomma americanum), the Gulf-Coast tick (Amblyomma maculatum), the American dog tick (Dermacentor variabilis), and the black-legged tick (Ixodes scapularis) by using a combination of immunoproteomic approach and, carbohydrate analysis. Anti-α-gal antibodies identified α-gal in the salivary glands of both Am. americanum and Ix. scapularis, while Am. maculatum and De. variabilis …

Melt Electrospinning Designs For Nanofiber Fabrication For Different Applications, Yasseen S. Ibrahim, Essraa A. Hussein, Moustafa M. Zagho, Ghada G. Abdo, Ahmed A. Elzatahry

Faculty Publications

Nanofibers have been attracting growing attention owing to their outstanding physicochemical and structural properties as well as diverse and intriguing applications. Electrospinning has been known as a simple, flexible, and multipurpose technique for the fabrication of submicro scale fibers. Throughout the last two decades, numerous investigations have focused on the employment of electrospinning techniques to improve the characteristics of fabricated fibers. This review highlights the state of the art of melt electrospinning and clarifies the major categories based on multitemperature control, gas assist, laser melt, coaxial, and needleless designs. In addition, we represent the effect of melt electrospinning process parameters …

Machine Learning For Prediction Of Sudden Cardiac Death In Heart Failure Patients With Low Left Ventricular Ejection Fraction: Study Protocol For A Retrospective Multicentre Registry In China, Fanqi Meng, Zhihua Zhang, Xiaofeng Hou, Zhiyong Qian, Yao Wang, Yanhong Chen, Yilian Wang, Ye Zhou, Zhen Chen, Xiwen Zhang, Jing Yang, Jinlong Zhang, Jianghong Guo, Kebei Li, Lu Chen, Ruijuan Zhuang, Hai Jiang, Weihua Zhou, Shaowen Tang, Yongyue Wei, Jiangang Zou

Faculty Publications

Introduction: Left ventricular ejection fraction (LVEF) ≤35%, as current significant implantable cardioverter-defibrillator (ICD) indication for primary prevention of sudden cardiac death (SCD) in heart failure (HF) patients, has been widely recognised to be inefficient. Improvement of patient selection for low LVEF (≤35%) is needed to optimise deployment of ICD. Most of the existing prediction models are not appropriate to identify ICD candidates at high risk of SCD in HF patients with low LVEF. Compared with traditional statistical analysis, machine learning (ML) can employ computer algorithms to identify patterns in large datasets, analyse rules automatically and build both linear and …

Effect Of Moisture On Dopant Segregation In Solid Hosts, Pragathi Darapaneni, Natalia S. Moura, Darrell Harry, David A. Cullen, Kerry M. Dooley, James A. Dorman

Faculty Publications

Transition metal-doped semiconductor materials are extensively employed for light harvesting and photocatalytic applications owing to their increased light absorption and charge mobility. In this work, spatial tailoring of the Ni dopant in TiO2 nanostructures is performed by varying the secondary processing parameters to engineer the resulting optoelectronic properties for select applications. Specifically, the aging of the dried Ti sol and the resulting Ni segregation are observed to be moisture-driven phenomena based on the infrared and time-resolved UV-vis spectroscopy measurements. While X-ray diffraction and scanning transmission electron microscopy coupled with electron energy-loss spectroscopy characterizations show a clear difference in the crystal …

Role Of Tidal Wetland Stability In Lateral Fluxes Of Particulate Organic Matter And Carbon, Neil K. Ganju, Zafer Defne, Tracy Elsey‐Quirk, Julia M. Moriarty

Faculty Publications

No abstract provided.

Auditory Distraction Does More Than Disrupt Rehearsal Processes In Children’S Serial Recall, Angela M. Aubuchon, Corey I. Mcgill, Emily M. Elliott

Faculty Publications

As children mature, their ability to remember information improves. This improvement has been linked to changes in verbal control processes such as rehearsal. Rehearsal processes are thought to undergo a quantitative shift around 7 years of age; however, direct measurement of rehearsal is difficult. We investigated a measure of rehearsal ability in children and compared this measurement to serial recall performance in the presence of auditory distractors. Theories of auditory distraction effects in children rely upon a combination of attentionally based and serial-order-based processes (Elliott et al. in Journal of Memory and Language, 88, 39–50, 2016); the present work contributes …

Outside The Echo Chamber: A Response To The “Consensus Statement On Abusive Head Trauma In Infants And Young Children, Randy Papetti, Paige Kaneb, Lindsay Herf

Faculty Publications

No abstract provided.

Ten Questions Concerning The Built Environment And Mental Health, Andrew J. Hoisington, Kelly A. Stearns-Yoder, Steven J. Schuldt, Cody J. Beemer, Juan P. Maestre, Kerry A. Kinney, Teodor T. Postolache, Christopher A. Lowry, Lisa A. Brenner

Faculty Publications

Most people spend the majority of their lives indoors. Research over the last thirty years has focused on investigating the mechanisms through which specific elements of the built environment, such as indoor air quality, influence the physical health of occupants. However, similar effort has not been expended in regard to mental health, a significant public health concern. One in five Americans has been diagnosed with a mental health disorder in the past year, and, in the United States, the number of suicide deaths are similar to the number of deaths due to breast cancer. Increases in mental health disorders in …

Floodwater Impact On Galveston Bay Phytoplankton Taxonomy, Pigment Composition And Photo-Physiological State Following Hurricane Harvey From Field And Ocean Color (Sentinel-3a Olci) Observations, Eurico D'Sa

Faculty Publications

Phytoplankton taxonomy, pigment composition and photo-physiological state were studied in Galveston Bay (GB), Texas (USA), following the extreme flooding associated with Hurricane Harvey (25-29 August 2017) using field and satellite ocean color observations. The percentage of chlorophyll a (Chl a) in different phytoplankton groups was determined from a semi-analytical IOP (inherent optical property) inversion algorithm. The IOP inversion algorithm revealed the dominance of freshwater species (diatom, cyanobacteria and green algae) in the bay following the hurricane passage (29 September 2017) under low salinity conditions associated with the discharge of floodwaters into GB. Two months after the hurricane (29-30 October 2017), …

Temporal Trends In Cardiovascular Hospital Discharges Following A Mass Chlorine Exposure Event In Graniteville, South Carolina, Ashley V. Howell, John E. Vena, Bo Cai, Daniel T. Lackland, Lucy Ingram, Andrew B. Lawson, Erik R. Svendsen

Faculty Publications

Background: On January 6, 2005, a train derailed in Graniteville, South Carolina, releasing nearly 60,000 kg of toxic chlorine gas. The disaster left nine people dead and was responsible for hundreds of hospitalizations and outpatient visits in the subsequent weeks. While chlorine gas primarily affects the respiratory tract, a growing body of evidence suggests that acute exposure may also cause vascular injury and cardiac toxicity. Here, we describe the incidence of cardiovascular hospitalizations among residents of the zip codes most affected by the chlorine gas plume, and compare the incidence of cardiovascular discharges in the years leading up to the …

Cardiorespiratory Fitness And The Risk Of First Acute Myocardial Infarction: The Hunt Study, Rajesh Shigdel, Håvard Dalen, Xuemei Sui, Carl J. Lavie, Ulrik Wisløff, Linda Ernstsen

Faculty Publications

Background

The majority of studies evaluating cardiorespiratory fitness (CRF) as a cardiovascular risk factor use cardiovascular mortality and not cardiovascular disease events as the primary end point, and generally do not include women. The aim of this study was to investigate the association of estimated CRF (eCRF) with the risk of first acute myocardial infarction (AMI).

Methods and Results

We included 26 163 participants (51.5% women) from the HUNT study (Nord‐Trøndelag Health Study), with a mean age of 55.7 years, without cardiovascular disease at baseline. Baseline eCRF was grouped into tertiles. AMI was derived from hospital records and deaths from …

Clostridium Difficile Infection Risk With Important Antibiotic Classes: An Analysis Of The Fda Adverse Event Reporting System, Chengwen Teng Pharm.D., Ph.D., Kelly R. Reveles, Obiageri O. Obodozie-Ofoegbu, Christopher R. Frei

Faculty Publications

Introduction: Antibiotic use is an important risk factor for Clostridium difficile infection (CDI). Prior meta-analyses have identified antibiotics and antibiotic classes that pose the greatest risk for CDI; however, CDI epidemiology is constantly changing and contemporary analyses are needed.

Objectives: The objective of this study was to evaluate the association between CDI and important antibiotic classes in recent years using the FDA Adverse Event Report System (FAERS).

Methods: FAERS reports from January 1, 2015 to December 31, 2017 were analyzed. The Medical Dictionary for Regulatory Activities (MedDRA) was used to identify CDI cases. We computed the Reporting Odds Ratios (RORs) …

Comparison Of Methods Used To Estimate The Global Burden Of Disease Related To Undernutrition And Suboptimal Breastfeeding, Alexander C. Mclain, Edward A. Frongillo Jr., Sonja Y. Hess, Ellen G. Piwoz

Faculty Publications

The Global Burden of Disease study (GBD) is an ambitious effort to estimate the disease burden attributable to various risk factors. The results from the GBD are used around the world to monitor the UN established Sustainable Development Goals, set health policies and research strategies, among others. The GBD along with other studies, such as those from the Maternal Child Epidemiology Estimation Group and the Lancet Breastfeeding Series Group, produce estimates of the nutrition-related global burden of disease that exhibit considerable differences. These differences are difficult to reconcile due to the estimation methods, which in recent years have substantially increased …

Experimental Evidence Supportive Of The Quantum Dna Model, F. Matthew Mihelic

Faculty Publications

The DNA molecule can be modeled as a quantum logic processor in which electron spin qubits are held coherently in each nucleotide in a logically and thermodynamically reversible enantiomeric symmetry, and can be coherently conducted along the pi-stacking interactions of aromatic nucleotide bases, while simultaneously being spin-filtered via the helicity of the DNA molecule. Entangled electron pairs can be separated by that spin-filtering, held coherently at biological temperatures in the topologically insulated nucleotide quantum gates, and incorporated into separate DNA strands during DNA replication. Two separate DNA strands that share quantum entangled electrons can be mitotically divided into individual cells, …

Prevalence And Risk Factors Of Postpartum Depression Within One Year After Birth In Urban Slums Of Dhaka, Bangladesh, Rashidul Azad, Rukhshan Fahmi, Sadichhya Shrestha, Hemraj Joshi, Mehedi Hasan, Abdullah Nurus Salam Khan, Mohiuddin Ahsanul Kabir Chowdhury, Shams El Arifeen, Sk Masum Billah

Faculty Publications

Postpartum depression (PPD) is a serious pubic health concern and known to have the adverse effects on mother’s perinatal wellbeing; and child’s physical and cognitive development. There were limited literatures on PPD in Bangladesh, especially in urban slum context. The aim of this study was to assess the burden and risk factors of PPD among the urban slum women. A cross-sectional study was conducted between November-December 2017 in three urban slums on 376 women within first 12 months of postpartum. A validated Bangla version of Edinburgh Postnatal Depression Scale was used to measure the depression status. Respondent’s socio-economic characteristics and …

Perspective: Challenges In Use Of Adolescent Anthropometry For Understanding The Burden Of Malnutrition, Alison Tumilowicz, Ty Beal, Lynnette M. Neufeld, Edward A. Frongillo Jr.

Faculty Publications

Improving nutritional status during adolescence is an opportunity to improve the lives of this generation and the next. Estimating the burden of malnutrition at a population level is fundamental to targeting interventions and measuring progress over time, and for adolescents, we usually depend on survey data and the 2007 WHO Growth Reference to do so. There is substantial risk of misguided conclusions regarding adolescent prevalence estimates, however, when underlying methodological limitations of the indicators and reference are not adequately considered. We use national prevalence estimates among girls and young women 10-22 y of age from the 2014 State of Food …

Assessing Natural And Mechanical Dune Performance In A Post-Hurricane Environment, Jean T. Ellis, Mayra Alejandra Roman-Rivera

Faculty Publications

The purpose of this study is to document the geomorphic evolution of a mechanical dune over approximately one year following its installation and compare it to the recovery of a natural dune following the impact of Hurricane Matthew (2016). During the study period, the dunes’ integrity was tested by wave and wind events, including king tides, and a second hurricane (Irma, 2017), at the end of the study period. Prior to the impact of the second hurricane, the volumetric increase of the mechanical and natural dune was 32% and 75%, respectively, suggesting that scraping alone is not the optimal protection …

Longitudinal Homogenization Of The Microbiome Between Both Occupants And The Built Environment In A Cohort Of United States Air Force Cadets, Anukriti Sharma, Miles Richardson, Lauren Cralle, Christopher E. Stamper, Juan P. Maestre, Kelly A. Stearns-Yoder, Teodor T. Postolache, Katherine L. Bates, Kerry A. Kinney, Lisa A. Brenner, Christopher A. Lowry, Jack A. Gilbert, Andrew J. Hoisington

Faculty Publications

The microbiome of the built environment has important implications for human health and wellbeing; however, bidirectional exchange of microbes between occupants and surfaces can be confounded by lifestyle, architecture, and external environmental exposures. Here, we present a longitudinal study of United States Air Force Academy cadets (n = 34), which have substantial homogeneity in lifestyle, diet, and age, all factors that influence the human microbiome. We characterized bacterial communities associated with (1) skin and gut samples from roommate pairs, (2) four built environment sample locations inside the pairs’ dormitory rooms, (3) four built environment sample locations within shared spaces …

Tetrahydrocannabinol Reduces Hapten-Driven Mast Cell Accumulation And Persistent Tactile Sensitivity In Mouse Model Of Allergen-Provoked Localized Vulvodynia, Beebie Boo, Rohit Kamath, Erica Arriaga-Gomez, Jasmine Landry, Elizabeth Emanuel, Sookyong Joo, Marietta Sald Montivero, Tijana Martinov, Brian T. Fife, Devavani Chatterjea

Faculty Publications

Vulvodynia is a remarkably prevalent chronic pain condition of unknown etiology. An increase in numbers of vulvar mast cells often accompanies a clinical diagnosis of vulvodynia and a history of allergies amplifies the risk of developing this condition. We previously showed that repeated exposures to oxazolone dissolved in ethanol on the labiar skin of mice led to persistent genital sensitivity to pressure and a sustained increase in labiar mast cells. Here we sensitized female mice to the hapten dinitrofluorobenzene (DNFB) dissolved in saline on their flanks, and subsequently challenged them with the same hapten or saline vehicle alone for ten …

Ethnic-Racial Socialization In Early Childhood: The Implications Of Color-Consciousness And Colorblindness For Prejudice Development, Flora Farago, Kimberly Leah Davidson, Christy M. Byrd

Faculty Publications

This chapter outlines how early childhood teachers can bring children into conversations surrounding race and racism by drawing on literature on how parents of color discuss these topics. Although educators’ practices surrounding race and racism remain largely unexplored, decades of developmental psychological research indicate that parents of color engage in ethnic-racial socialization practices that are beneficial for children (Hughes et al., 2006). The established dimensions of parental ethnic-racial socialization include (1) cultural socialization, or teaching children about their ethnic heritage and instilling ethnic pride; (2) preparation for bias, or teaching children about racism and preparing them to face discrimination; (3) …

The Modeling Assessment Of World Vision’S Water, Sanitation, And Hygiene Program In Southern Africa Countries, Malawi, Mozambique, And Zambia: Analyses Using Lives Saved Tool, Chulwoo Park, Armen Martirosyan, Seble Frehywot, Erin Jones, Ashley Labat, Yvonne Tam, Emmanuel Opong

Faculty Publications

Background: Since 2010, the humanitarian aid organization World Vision has implemented a community-based water, sanitation, and hygiene (WASH) program in 76 area development programs (ADPs) for a total target population of 2,831,535 in three Southern Africa countries: Malawi, Mozambique, and Zambia.

Methods: This study was conducted using the Lives Saved Tool (LiST) to analyze the isolated impact of World Vision WASH interventions on child morbidity and mortality during the four-year implementation period from 2010 to 2014. The combined effects of WASH interventions – improved water source, home water connection, improved sanitation, handwashing with soap, hygienic disposal of children’s stools – …

An Ensemble Of Lipoxygenase Structures Reveals Novel Conformations Of The Fe Coordination Sphere, Svetlana Pakhomova, William E. Boeglin, David B. Neau, Sue G. Bartlett, Alan R. Brash, Marcia E. Newcomer

Faculty Publications

© 2019 The Protein Society The regio- and stereo-specific oxygenation of polyunsaturated fatty acids is catalyzed by lipoxygenases (LOX); both Fe and Mn forms of the enzyme have been described. Structural elements of the Fe and Mn coordination spheres and the helical catalytic domain in which the metal center resides are highly conserved. However, animal, plant, and microbial LOX each have distinct features. We report five crystal structures of a LOX from the fungal plant pathogen Fusarium graminearum. This LOX displays a novel amino terminal extension that provides a wrapping domain for dimerization. Moreover, this extension appears to interfere with …

Access Before Evidence And The Price Of The Fda's New Drug Authorities, Erika Lietzan

Faculty Publications

Sometimes drug innovation seems to happen in reverse. Patients enjoy a treatment for years even though the treatment has not been approved by the FDA or proven safe and effective to the FDA's standards. (Sometimes this happens because the FDA has declined to take enforcement action.) The agency encourages companies to perform the work necessary to satisfy the United States "gold standard" for new drug approval, however, by promising exclusivity in the marketplace. When a company does this work, at considerable expense, the results are predictable. The new drug is expensive, and patients and payers (and sometimes policymakers) are outraged. …