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Denitrification And Biological Phosphorus Removal Using Focused, Pulse-Treated, Thickened Waste Activated Sludge As An Internal Carbon Source, Holly Anne Hillard

Civil & Environmental Engineering Theses & Dissertations

Recent research shows that an internal carbon source, derived from the treatment of waste activated sludge (WAS), could be used as an alternative to external carbon sources for denitrification in biological wastewater treatment processes. In this study, a thickened waste activated sludge (TWAS) treatment technology, developed by the company OpenCEL, was used to treat TWAS with pulsed electric fields (PEF) to transform it into an organic substrate for heterotrophic denitrification in a biological nutrient removal (BNR) system. If effective, this technique could significantly reduce the external carbon source demand.

To determine the utility of OpenCEL-treated TWAS as an internal carbon …

Phosphorus Cycling In Tropical Carbonate Sediment-Seagrass Systems, Zachary Howerton

OES Theses and Dissertations

This thesis presents two studies focusing on phosphorus cycling in calcium carbonate sediments inhabited by seagrasses. Phosphorus is a major limiting nutrient for primary productivity in these sediments as well as in the overlying waters. In large part this is due to removal of phosphate from solution by adsorption and precipitation reactions.

In chapter II, the relationship between the size of the sedimentary phosphorus pool and the abundance of seagrass on the Great Bahama Bank, as well as the relationship between phosphorus content and grain size in the sediments, were examined to better understand the biogeochemistry of carbonate sediments and …

Regulation Of Hyaluronate Lyase (Hyla) Expression By Regr A Transcriptional Repressor In Streptococcus Pyogenes, Alexis A. Kordis

Biological Sciences Theses & Dissertations

Streptococcus pyogenes, group A streptococci (GAS), causes diseases ranging from asymptomatic to life threatening. Some strains of S. pyogenes produce extracellular hyaluronate lyase (HylA), a potential virulence factor. HylA is an enzyme that degrades hyaluronic acid, which is found in the extracellular matrix of human tissues. The breakdown of the host tissue contributes to the spread of infection. The hylA gene is not constitutively expressed in vitro, which implies regulation.

A proposed regulator of hyaluronate lyase expression is RegR, a LacI/GalR like protein. A vector containing disrupted regR was electro-transformed into S. pyogenes M-type 22 strain 10403. Growth characteristics …

Relationships Of Physical Performance Tests To Military-Relevant Tasks In Women, Tunde K. Szivak, William J. Kraemer, Bradley C. Nindl, Lincoln A. Gotshalk, Jeff S. Volek, Ana L. Gomez, Courtenay Dunn-Lewis, David P. Looney, Brett A. Comstock, David R. Hooper, Shawn D. Flanagan, Carl M. Maresh

Health Sciences Faculty Publications

Purpose: This investigation sought to determine the most predictive measures of performance on a repetitive box lifting task (RBLT) and load bearing task (LBT) among 123 women (aged 23±4 years, height 165±7 cm, body mass 64±10 kg).

Methods: To determine the relationship of various predictors to performance on the RBLT and LBT, multiple regression analysis was conducted on body mass, height, leg cross-sectional area, upper and lower body muscular strength, lower body explosive power, upper and lower body local muscular endurance, and aerobic capacity.

Results: The mean±SD (range) number of repetitions for the RBLT was 86±23 (20-159). The mean±SD (range) …

Armstrong Magazine, Marketing & Communications Department, Armstrong State University

Armstrong News & Publications: Armstrong Magazine (Archived)

No abstract provided.

President's Report & Report To Donors: A Special Supplement, Marketing & Communications Department, Armstrong State University

Armstrong News & Publications: Armstrong Magazine (Archived)

No abstract provided.

Nmr And Computational Characterization Of Protein Structure And Ligand Binding, Terrence Neumann

Dissertations (1934 -)

Nuclear magnetic resonance (NMR) techniques combined with computational methods such as docking and cheminformatics were used to characterize protein structure and ligand binding. The thioredoxin system of Mycobacterium tuberculosis consists of a thioredoxin reductase and at least three thioredoxins. This system is responsible for maintaining the cellular protein thiol redox state in normal state. This maintenance is important as the bacterium is engulfed by the human macrophage. Here it is bombarded by reactive oxygen and nitrogen species in an attempt to disrupt normal cellular function in part by perturbing the protein thiols. To this end, the solution structures of the …

Synthesis, Characterization And Application Of Two-Dimensional Layered Metal Hydroxides For Environmental Remediation Purposes, Cleopas Machingauta

Dissertations (1934 -)

Two-dimensional layered nano composites, which include layered double hydroxides (LDHs), hydroxy double salts (HDSs) and layered hydroxide salts (LHSs) are able to intercalate different molecular species within their gallery space. These materials have a tunable structural composition which has made them applicable as fire retardants, adsorbents, catalysts, catalyst support materials, and ion exchangers. Thermal treatment of these materials results in destruction of the layers and formation of mixed metal oxides (MMOs) and spinels. MMOs have the ability to adsorb anions from solution and may also regenerate layered structures through a phenomenon known as “memory effect”. Zinc-nickel hydroxy nitrate was used …

Theoretical Analysis Of Laterally Vibrating Hammerhead Microcantilever Sensors In A Viscous Liquid, Jinjin Zhang

Dissertations (1934 -)

Dynamically driven prismatic microcantilevers excited in the in-plane flexural mode have been investigated and used in liquid-phase sensing applications. However, the performance is restricted due to their limited surface sensing area and higher stiffness in shorter and wider prismatic microcantilevers. To increase the surface sensing area, and further improve sensing characteristics, it has been proposed to investigate symmetric hammerhead microcantilevers vibrating laterally in viscous liquid media. In this work, a theoretical model is proposed and the characteristics of the microcantilevers with symmetric shaped hammerheads (isosceles trapezoid, semi-circle, uniform rectangle and composite rectangle) are investigated. In the analysis, the stem of …

Theoretical Analysis Of Torsionally Vibrating Microcantilevers For Chemical Sensor Applications In Viscous Liquids, Tao Cai

Dissertations (1934 -)

Dynamically driven microcantilevers excited in the transverse (or out-of-plane) direction are widely used as highly sensitive chemical sensing platforms in various applications. While these devices work very well in air, their performance in liquids is not efficient because of the combination of increased viscous damping and effective fluid mass. In order to improve the characteristics of microcantilevers in liquid environments, some other vibration modes such as the torsional mode and lateral (or in-plane) flexural mode have been proposed.
In this work, the characteristics of torsionally vibrating rectangular microcantilevers with length L, width b and thickness h in viscous liquids are …

Robotic Repair Of Giant Paraesophageal Hernias, Rupa Seetharamaiah, Rey Romero, Radomir Kosanovik, Michelle Gallas, Juan-Carlos Verdeja, Jorge Rabaza, Anthony Gonzalez

All Publications

BACKGROUND AND OBJECTIVES:

Giant paraesophageal hernia accounts for 5% of all hiatal hernias, and it is commonly seen in elderly patients with comorbidities. Some series report complication rates up to 28%, recurrence rates between 10% and 25%, and a mortality rate close to 2%. Recently, the da Vinci Surgical System (Intuitive Surgical, Sunnyvale, CA, USA) has shown equivocal benefits when used for elective surgeries, whereas for complex procedures, the benefits appear to be clearer. The purpose of this study is to present our preliminary experience in robotic giant paraesophageal hernia repair.

METHODS:

We retrospectively collected data from patients who had …

The Mass Lynching Of Italians In 1891 New Orleans: Marking Italians As Racially "Dago", Nicholas Borkowski , '14

Senior Theses, Projects, and Awards

This paper contextualizes the 1891 mass lynching of Italians in New Orleans as a moment in which Italians in New Orleans are marked as racially “Dago.” This paper draws from historical scholarship on race and nativism to explore how the lynching manifested racial, and to a smaller degree nativist, prejudice towards Italians from everyday mindsets in New Orleans at the time.

The George-Anne, Georgia Southern University

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Promoting Health And Wellbeing For People With Attention Deficit Hyperactivity Disorder: An Occupational Perspective, Danielle Hitch, Negar Lavasani, Genevieve Pepin, Karen Stagnitti

Internet Journal of Allied Health Sciences and Practice

Purpose: To provide an overview of current knowledge and practice that supports an occupational perspective to health promotion for people with attention deficit hyperactivity disorder (ADHD).Method: Evidence was identified from a range of electronic databases using inclusion and exclusion criteria. Studies were subjected to a process of critical appraisal using scales for both quantitative and qualitative research, with only those ranked in the top four levels included. The scales used for this critique were the levels of evidence for quantitative research defined by the Australian National Health and Medical Research Council (NHMRC) and the Rosalind Franklin Qualitative Research Appraisal Instrument …

Focus, 2013, Fall, Andrews University

Focus

FOCUS (ISSN 1077-9345) is published quarterly, free of charge, for alumni and friends of Andrews University, an institution owned and operated by the Seventh-day Adventist Church.

Exploring Life And Death At The Cellular Level: An Examination Of How Our Cells Can Live Without Us, Emily F. Schmitt Lavin

Biology Faculty Articles

No abstract provided.

Seventeenth Annual Scientific Meeting Institute Of Cardiovascular Science And Medicine

Journal of the Hong Kong College of Cardiology

No abstract provided.

Association Of Dietary Intake Patterns With Emotion Regulation, Megan Holt

Loma Linda University Electronic Theses, Dissertations & Projects

Background: Western dietary patterns, characterized by high intakes of trans fatty acids (TFA’s), are associated with numerous preventable chronic diseases. Conversely, a Mediterranean dietary pattern is known to be favorably associated with health. Recent findings suggest a correlation between Mediterranean dietary patterns and positive affect, and an inverse correlation with negative affect. Trans fatty acid intake is also associated with negative affect. Further, affect disturbances are associated with emotion dysregulation. We have yet to understand the association of diet with emotion regulation after taking affect disturbances into consideration. The purpose of this study was to examine effects of Mediterranean diet …

Internet Reviews: Smithsonian Ocean Portal, John Creech

Library Scholarship

This column comprises a review of the Smithsonian Ocean Portal, an Internet resource created by Smithsonian Institution's Museum of Natural History.

Eating Invaders: Managing Biological Invasions With Fork And Knife?, Joshua Ulan Galperin, Sara Kuebbing

Elisabeth Haub School of Law Faculty Publications

As the public, academy, government, and private sector all turn increased attention to food systems, new ideas constantly emerge for healthy, sustainable, and just innovations in growing, marketing, and eating food. “Invasivory” — eating invasive species — is one such idea. Biological invasions occur when humans transport an organism from its ecosystem of origin into a new ecosystem and that organism adapts to its new location, spreading widely from the site of introduction. Invasive species can cause significant ecological, economic, and public health damage. Crops, homes, and native species are all at risk. “Invasivores,” as the proponents of invasivory are …

Detection Of Volatile Organic Compounds In Brucella Abortus- Seropositive Bison, Alona Bayn, Pauline Nol, Ulrike Tisch, Jack Rhyan, Christine K. Ellis, Hossam Haick

United States Department of Agriculture Wildlife Services: Staff Publications

Brucellosis is of great public health and economic importance worldwide. Detection of brucellosis currently relies on serologic testing of an antibody response to Brucella infection, which suffers from cross-sensitivities to other antibody responses. Here we present a new method for identifying Brucella exposure that is based on profiling volatile organic compounds (VOCs) in exhaled breath. Breath samples from Brucella-seropositive bison and controls were chemically analyzed and demonstrated statistically significant differences in the concentration profiles of five VOCs. A point-of-care device incorporating an array of nanomaterial-based sensors could identify VOC patterns indicative of Brucella exposure with excellent discriminative power, using …

The New Hampshire, Vol. 103 [104], No. 07 (Oct. 1, 2013), The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire. This volume was printed as 103, but it is the 104th volume in the series. This was corrected in pencil.

Renowned Oceanographer To Present Annual Waller Lecture, Erin Garrett

University of Mississippi News

William H. Gerwick to speak Oct. 4 on marine pharmaceutical leads

Epilepsy, Hippocampal Sclerosis And Febrile Seizures Linked By Common Genetic Variation Around Scn1a., Dalia Kasperaviciute, Claudia B Catarino, Mar Matarin, Costin Leu, Jan Novy, Anna Tostevin, Bárbara Leal, Ellen V S Hessel, Kerstin Hallmann, Michael S Hildebrand, Hans-Henrik M Dahl, Mina Ryten, Daniah Trabzuni, Adaikalavan Ramasamy, Saud Alhusaini, Colin P Doherty, Thomas Dorn, Jörg Hansen, Günter Krämer, Bernhard J Steinhoff, Dominik Zumsteg, Susan Duncan, Reetta K Kälviäinen, Kai J Eriksson, Anne-Mari Kantanen, Massimo Pandolfo, Ursula Gruber-Sedlmayr, Kurt Schlachter, Eva M Reinthaler, Elisabeth Stogmann, Fritz Zimprich, Emilie Théâtre, Colin Smith, Terence J O'Brien, K Meng Tan, Slave Petrovski, Angela Robbiano, Roberta Paravidino, Federico Zara, Pasquale Striano, Michael R Sperling, Russell J Buono, Hakon Hakonarson, João Chaves, Paulo P Costa, Berta M Silva, António M Da Silva, Pierre N E De Graan, Bobby P C Koeleman, Albert Becker, Susanne Schoch, Marec Von Lehe, Philipp S Reif, Felix Rosenow, Felicitas Becker, Yvonne Weber, Holger Lerche, Karl Rössler, Michael Buchfelder, Hajo M Hamer, Katja Kobow, Roland Coras, Ingmar Blumcke, Ingrid E Scheffer, Samuel F Berkovic, Michael E. Weale, Uk Brain Expression Consortium, Norman Delanty, Chantal Depondt, Gianpiero L Cavalleri, Wolfram S Kunz, Sanjay M Sisodiya

Department of Neurology Faculty Papers

Epilepsy comprises several syndromes, amongst the most common being mesial temporal lobe epilepsy with hippocampal sclerosis. Seizures in mesial temporal lobe epilepsy with hippocampal sclerosis are typically drug-resistant, and mesial temporal lobe epilepsy with hippocampal sclerosis is frequently associated with important co-morbidities, mandating the search for better understanding and treatment. The cause of mesial temporal lobe epilepsy with hippocampal sclerosis is unknown, but there is an association with childhood febrile seizures. Several rarer epilepsies featuring febrile seizures are caused by mutations in SCN1A, which encodes a brain-expressed sodium channel subunit targeted by many anti-epileptic drugs. We undertook a genome-wide association …

Want To Enroll In A Mooc? No Thanks, My Professors Have Their Own Videos, Enda Mcgovern, Arne Baruca

WCBT Faculty Publications

Purpose: The paper explores how professors, in adopting short digital video lectures as a complementary teaching platform outside the classroom, could better enhance the learning experience for digital natives, i.e. millennial students, in challenging the growth of massive open online courses (MOOC). Specifically, the use of personalized, class-specific, video content made available on YouTube, in which the professor-of-record appears, is examined as a complementary learning platform for students required to read textbook material in preparation for class discussions.

Method / Design and Sample: Students were required to view class-specific digital videos on YouTube and thereafter complete a questionnaire to examine …

Ndp News- Fall 2013, Ndp Staff

Nontraditional Degree Program Newsletter

No abstract provided.

Characterizations Of Distribution Of Ratio Of Rayleigh Random Variables, Gholamhossein Hamedani

Mathematics, Statistics and Computer Science Faculty Research and Publications

Various characterizations of the distribution of the ratio of two independent Rayleigh random variables are presented. These characterizations are based, on a truncated moment; on hazard function; and on certain functions of order statistics.

Ion Exchange Nutrient Recovery From Municipal Wastewater, Allen Williams

Master's Theses (2009 -)

Nitrogen and phosphorus discharge is regulated due to eutrophication. Typically ammonium-nitrogen is removed through nitrification which requires energy and phosphorus (P) is removed by metal salt addition to precipitate P. A more sustainable approach may be to implement nutrient recovery to form fertilizers. Most nitrogen fertilizer is formed through the energy intensive Haber-Bosch process. Phosphate rock, a limited resource, is mined for P fertilizer. Discharge regulations and the fertilizer production costs provide an economic driver for recovery. The current project used anionic and cationic ion exchange (IX) to concentrate the nutrients with recovery by struvite precipitation. Previous work lacks direct …

The Influence Of Anger On Implicit Biases, Katherine Reiter

Master's Theses (2009 -)

Interpretation of ambiguous information is influenced by anxious (Richards, Reynolds, & French, 1992) and depressive (Wisco, & Nolen-Hoeksema, 2010) symptoms. Emotion regulation strategies, and in particular, cognitive reappraisal has shown to be effective at reducing feelings of distress (Denson, Grisham, & Moulds, 2011). The current study seeks to understand the extent that emotion regulation can influence interpretation bias, thoughts and behaviors. In the current study, participants underwent both Angry and Neutral mood inductions. For each mood condition, participants were instructed to cognitively reappraise and attend to their emotions. Participants rated the degree of negative affect they experienced, and completed 6 …

An Investigation Of Phase-Change Effects During Rapid Compression Machine Experiments, Colin Banyon

Master's Theses (2009 -)

Rapid compression machines (RCMs) are well characterized laboratory scale devices capable of achieving internal combustion (IC) engine relevant thermodynamic environments. These machines are often used to collect ignition delay times as targets for gas-phase chemical kinetic fuel autoigntion models. Modern RCMs utilize creviced piston(s) to improve charge homogeneity and allow for an adequate validation of detailed chemistry mechanisms against experiments using computationally efficient, homogeneous reactor models (HRMs). Conventionally, experiments are preformed by introducing a premixed gas of fuel + oxidizer + diluent into the machine, which is compressed volumetrically via a piston. Experiments investigating low-vapor pressure fuels (e.g. diesels, biodiesels, …