Digital Commons Network^™

Atoxigenic Aspergillus Flavus Biological Control Of Aflatoxin Contamination: What Is The Mechanism?, K. E. Damann

Faculty Publications

The term 'competitive exclusion' involving physical blockage of growth or access of the toxigenic strain to the seed target has been used to describe the mechanism of biological control of aflatoxin contamination. However, recent evidence suggests that a form of intraspecific aflatoxin inhibition requiring growth of the competing strains together during the infection process in such a way that hyphae physically interact or touch is the trigger for preventing induction of aflatoxin synthesis. This direct touch-based inhibition of aflatoxin synthesis is posited to be the mechanistic basis of biological control in this system. Evidence for this idea comes from the …

Structure Activity Relationships Of Biotin Carboxyl Carrier Protein Of E. Coli Acetyl-Coa Carboxylase, Amanda Breaux

Honors Capstones

No abstract provided.

Components, Volume 11 (2015), Lsu Center For Computation And Technology

Components

No abstract provided.

Identification Of Potential Genetic Components Involved In The Deviant Quorum-Sensing Signaling Pathways Of Burkholderia Glumae Through A Functional Genomics Approach, Ruoxi Chen, Inderjit K. Barphagha, Jong Hyun Ham

Faculty Publications

Burkholderia glumae is the chief causal agent for bacterial panicle blight of rice. The acyl-homoserine lactone (AHL)-mediated quorum-sensing (QS) system dependent on a pair of luxI and luxR homologs, tofI and tofR, is the primary cell-to-cell signaling mechanism determining the virulence of this bacterium. Production of toxoflavin, a major virulence factor of B. glumae, is known to be dependent on the tofI/tofR QS system. In our previous study, however, it was observed that B. glumae mutants defective in tofI or tofR produced toxoflavin if they grew on the surface of a solid medium, suggesting that alternative signaling pathways independent of …

Lsu General Catalog 2015-2016, Louisiana State University And Agricultural And Mechanical College

LSU General Catalog

The LSU General Catalog describes all undergraduate and graduate departments and programs with degree requirements and courses offered for each one. The LSU General Catalog includes information on registration and financial aid as well as academic services offered to all students.

Aggressiveness In Inland And Coastal Colonies Of Solenopsis Invicta, Desmarie Stewart

Honors Capstones

No abstract provided.

The Many Chances Of Charles Darwin, Charles H. Pence

Faculty Publications

No abstract provided.

The Rebel Yell: A Cultural History, Rod Andrew Jr.

Civil War Book Review

“The Ugliest Sound that Any Mortal Ever Heard:" The Rebel Yell in American History and Culture

The famous, high-pitched “rebel yell" began its career as a distinctive war cry and a means of communication for Confederate soldiers, and soon became a marker of white southern identity. By th....

Can We Identify Genes With Increased Phylogenetic Reliability?, Vinson P. Doyle, Randee E. Young, Gavin J.P. Naylor, Jeremy M. Brown

Faculty Publications

© The Author(s) 2015. Topological heterogeneity among gene trees is widely observed in phylogenomic analyses and some of this variation is likely caused by systematic error in gene tree estimation. Systematic error can be mitigated by improving models of sequence evolution to account for all evolutionary processes relevant to each gene or identifying those genes whose evolution best conforms to existing models. However, the best method for identifying such genes is not well established. Here, we ask if filtering genes according to their clock-likeness or posterior predictive effect size (PPES, an inference-based measure of model violation) improves phylogenetic reliability and …

Jump-Diffusion Approximation Of Stochastic Reaction Dynamics: Error Bounds And Algorithms, Arnab Ganguly, Derya Altintan, Heinz Koeppl

Faculty Publications

Biochemical processes in living cells are comprised of reactions with vastly varying speeds and molecular counts of the reactant species. Classical deterministic or stochastic approaches to modeling often fail to exploit this multiscale nature of the reaction systems. In this paper, we propose a jump-diffusion approximation to these types of multiscale systems that couples the two traditional modeling approaches. An error bound of the proposed approximation is derived and used to partition the reactions into two sets, where one set is modeled by continuous stochastic differential equations and the other by discrete state processes. The methodology leads to a very …

Manual For Ageing And Sexing Birds Of Bosque Fray Jorge National Park And Northcentral Chile, With Notes On Range And Breeding Seasonality, Peter Pyle, Andrew Engilis, Douglas A. Kelt

Special Publications of the Museum of Natural Science

Bosque Fray Jorge National Park (hereafter "Fray Jorge") comprises 9,959 ha on the coast of Chile’s Region IV (Coquimbo), approximately 400 km north of Santiago and 100 km south of La Serena (30°41’S, 71°40’W) (Fig. 1). It is a Biosphere Reserve and has been protected from grazing and disturbance since 1941 (Squeo et al. 2004). As such, it is a biotic oasis surrounded by agricultural and increasingly disturbed terrain (Bahre 1979). The climate is Mediterranean, with ca. 130 mm of annual precipitation measured since 1989 at an on-site meteorological station, 90% falling in winter (May-Sept). Summers are warm and dry, …

Manual Para Estimar Edad Y Sexo En Aves Del Parque Nacional Bosque Fray Jorge Y Chile Central, Con Notas Sobre Rangos De Distribución Y Estación Reproductiva, Peter Pyle, Andrew Engilis Jr., Douglas A. Kelt

Special Publications of the Museum of Natural Science

El Parque Nacional Fray Jorge (en adelante "Fray Jorge") comprende 9.959 ha. en la costa de la IV Región de Chile (Coquimbo), a unos 400 km al norte de Santiago y a 100 km al sur de La Serena (30 ° 41'S, 71 ° 40'W) (Fig. 1). Se trata de una Reserva de la Biosfera que se ha protegido del pastoreo y las perturbaciones antrópicas desde 1941 (Squeo et al. 2004). Como tal, es un oasis biótico rodeado de áreas agrícolas cada vez más intervenidas por el hombre (Bahre 1979). El clima es mediterráneo, con 130 mm de precipitación anual, …

Birthing The Poet Elizabeth Singer Rowe And The Athenian Mercury, Heidi Laudien

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

The Unending Dunciad Pope's Weird Revenge, Cedric D. Reverand Ii

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

Three Bibliopoles, J. T. Scanlan

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

The Arabian Nights And The Oriental Tale Sustainable Enlightenment Texts, Malcolm Jack

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

"Iron War" As "Daily Care"Sustainability And The Dialectic Of Care In Dryden's Georgics, Erin Drew

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

"Go Not Far To Dine" Pedagogical Approaches To Sustainable Consumption In The Eighteenth-Century Studies Classroom And Beyond, Marlon Pareja, Sher Li Ong, Michelle Merrill, Samara Anne Cahill

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

An Eighteenth-Century Plea For Sustainable Forestry Ostervald's Description Des Montagnes & Vallees Du Pays De Neuchatel (1764), Alexandra Cook

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

Book Reviews

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

Assessing Uncertainty In Coastal Marsh Core Sampling For Waterfowl Foods, Kevin M. Ringelman, Christopher K. Williams, John M. Coluccy

Faculty Publications

Quantifying foraging resources available to waterfowl in different habitat types is important for estimating energetic carrying capacity. To accomplish this, most studies collect soil-core samples from the marsh substrate, sieve and sort food items, and extrapolate energy values to wetland or landscape scales. This is a costly and time-intensive process; furthermore, extrapolation methods yield energy estimates with large variances relative to the mean. From both research and management perspectives, it is important to understand sources of this variation and estimate the number of soil cores needed to reduce the variance to desired levels. Using 2,341 cores collected from freshwater and …

Prevention Is Possible: Aligning Priorities To End Sexual Violence, Donna Dunn

William Mitchell Law Review

No abstract provided.

Tribal Strategies For Protecting And Preserving Groundwater, Stephen V. Quesenberry, Timothy C. Seward, Adam P. Bailey

William Mitchell Law Review

No abstract provided.

Climate Change Adaptation In Indian Country: Tribal Regulation Of Reservation Lands And Natural Resources, Jamie Kay Ford, Erick Giles

William Mitchell Law Review

No abstract provided.

Redd+: Climate Justice Or A New Face Of Manifest Destiny? Lessons Drawn From The Indigenous Struggle To Resist Colonization Of Ojibwe Forests In The Nineteenth And Twentieth Centuries, Philomena Kebec

William Mitchell Law Review

No abstract provided.

"Free The Land": A Call For Local Governments To Address Climate-Induced Food Insecurity In Environmental Justice Communities, Liza Guerra Garcia

William Mitchell Law Review

No abstract provided.

A Resistant-Starch Enriched Yogurt: Fermentability, Sensory Characteristics, And A Pilot Study In Children, Frank Greenway, Jolene Zheng, Kayanush Aryana, Nikhil Dhurandhar, Richard Tulley, John Finley, Michael Keenan, Roy Martin, Christine Pelkman, Douglas Olson

Faculty Publications

The rising prevalence of obesity and the vulnerability of the pediatric age group have highlighted the critical need for a careful consideration of effective, safe, remedial and preventive dietary interventions. Amylose starch (RS2) from high-amylose maize (HAM) ferments in the gut and affects body weight. One hundred and ten children, of 7-8 (n=91) or 13-14 (n=19) years of age scored the sensory qualities of a yogurt supplemented with either HAM-RS2 or an amylopectin starch. The amylopectin starch yogurt was preferred to the HAM-RS2-enriched yogurt by 7-8 year old panelists (P<0.0001). Appearance, taste, and sandiness scores given by 13- to 14-year-old panelists were more favorable for the amylopectin starch yogurt than for HAM-RS2-enriched yogurt (P<0.05). HAM-RS2 supplementation resulted in acceptable (≥6 on a 1-9 scale) sensory and hedonic ratings of the yogurt in 74% of subjects. Four children consumed a HAM-RS2-enriched yogurt for four weeks to test its fermentability in a clinical trial. Three adolescents, but not the single pre-pubertal child, had reduced stool pH (P=0.1) and increased stool short-chain fatty acids (SCFAs) (P<0.05) including increased fecal acetate (P=0.02), and butyrate (P=0.089) from resistant starch (RS) fermentation and isobutyrate (P=0.01) from protein fermentation post-treatment suggesting a favorable change to the gut microbiota. HAM-RS2 was not modified by pasteurization of the yogurt, and may be a palatable way to increase fiber intake and stimulate colonic fermentation in adolescents. Future studies are planned to determine the concentration of HAM-RS2 that offers the optimal safe and effective strategy to prevent excessive fat gain in children.

In Vitro And In Vivo Characterization Of Pentaerythritol Triacrylate-Co-Trimethylolpropane Nanocomposite Scaffolds As Potential Bone Augments And Grafts, Cong Chen, Leah Garber, Mollie Smoak, Carmel Fargason, Thomas Scherr, Caleb Blackburn, Sasha Bacchus, Mandi J. Lopez, John A. Pojman, Fabio Del Piero, Daniel J. Hayes

Faculty Publications

© 2015 Mary Ann Liebert, Inc. A thiol-Acrylate-based copolymer synthesized via an amine-catalyzed Michael addition was studied in vitro and in vivo to assess its potential as an in situ polymerizing graft or augment in bone defect repair. The blends of hydroxyapatite (HA) with pentaerythritol triacrylate-co-trimethylolpropane (PETA), cast as solids or gas foamed as porous scaffolds, were evaluated in an effort to create a biodegradable osteogenic material for use as a bone-void-filling augment. Osteogenesis experiments were conducted with human adipose-derived mesenchymal stromal cells (hASCs) to determine the ability of the material to serve as an osteoinductive substrate. Poly(É-caprolactone) (PCL) composites …

Mediation And Moderation Analysis Of Nutrition, Inflammatory Biomarkers, And Cognition In Older Adults, Elizabeth Handing

USF Tampa Graduate Theses and Dissertations

Nutrition can be viewed as a modifiable factor related to maintaining and preserving health in older adults. Previous studies have found that nutritional factors can influence cognitive abilities, however few studies have examined macronutrients and micronutrients as they relate to cognitive functioning. Research has yet to examine the mechanisms related to nutrition, cognition and aging in an older adult population from a holistic and interactive perspective.

This dissertation examined three research questions to better understand the relationship between age, nutrition, cognition, and inflammatory biomarkers. First, is nutrition related to cognition beyond demographic factors? Do individual nutrients serve as mediators? Second, …

Using Auditory Feedback To Improve Dance Movements Of Children With Disabilities, Takema J. James

USF Tampa Graduate Theses and Dissertations

Research incorporating behavior analysis to improve sports performance has shown that various feedback types (e.g., video feedback, public posting) can increase skills. Recently, auditory feedback has been shown to be effective. The purpose of this study was to evaluate the utility of auditory feedback to improve dance movements of children with disabilities using an ABAB design embedded in a multiple baseline across participants design. The target behaviors were fundamental dance skills, individualized to each student, and scored using a task analysis to calculate the percentage of correct steps. The results showed that auditory feedback was valuable in increasing the specific …