Digital Commons Network^™

Secondary Municipal Wastewater Treatment Using The Uasb/Solids Contact Technology, Eudomar Silva

LSU New Orleans Theses and Dissertations

Anaerobic pretreatment and aerobic post-treatment of municipal wastewater is being used more frequently. Recent investigations in this field using an AFBR/aeration chamber combination demonstrated the technical feasibility of this process. The investigation presented herein describes the use of a combined UASB/aeration chamber system for the treatment of municipal wastewater and attempts to demonstrate the technical feasibility of using the UASB process as both a pretreatment unit and a waste activated sludge digestion system. The results indicate that the UASB reactor has a TSS removal efficiency of about 37%. Of the solids removed by the unit, 33% were degraded by the …

A Novel Chirp Slope Keying Modulation Scheme For Underwater Communication, Lastri Simanjuntak

LSU New Orleans Theses and Dissertations

A digital modulation method using Chirp-Slope Keying (CSK) is developed for coherent underwater acoustic communications. Effective signal detection is a critical stage in the implementation of any communications system; we will see that CSK solves some significant challenges to reliable detection. This thesis is primarily based on analyzing the effectiveness of CSK through simulations using Matlab's Simulink for underwater communications. The procedure begins with modulating a chirp's slope by random binary data with a linear-down-slope chirp representing a 0, and a linear-up-slope chirp representing a 1. Each received symbol is demodulated by multiplying it with the exact linear-up-slope chirp and …

In Vitro Metabolism Study Of Brevetoxins By Lc-Esi-Ms, Weiqun Wang

LSU New Orleans Theses and Dissertations

Brevetoxins are natural neurotoxins that are produced by "red tide" algae. In this study, brevetoxin-1 and brevetoxin-2 were incubated with rat liver hepatocytes and rat liver microsomes, respectively. After clean-up steps, samples were analyzed by liquid chromatography (LC) coupled with electrospray mass spectrometry (LC-MS). For the incubation sample of brevetoxin- 1, two metabolites were found: brevetoxin-1-M1 and brevetoxin- 1-M2. The tandem mass spectrometry study of the [brevetoxin-1- M1+H]+ led to the conclusion that it was formed by converting one double bond in the E or F ring of brevetoxin-1 into a diol. The second metabolite (brevetoxin-1-M2) is proposed to be …

The Biology Of Spaeroma Terebrans In Lake Pontchartrain, Louisiana With Emphasis On Burrowing, Laura Lee Wilkinson

LSU New Orleans Theses and Dissertations

Sphaeroma terebrans (Bate 1866) is an economically and ecologically important cosmopolitan species because this isopod is found burrowed in wood and marine structures of fresh to saline water. Existing literature on S. terebrans focuses on the destruction of red mangrove (Rhizophora mangle) in India, Pakistan, and Florida. This study concentrates on S. terebrans habitat and boring preferences in bald cypress (Taxodium distichum) in Lake Pontchartrain near the Bonnet Carre Spillway, Louisiana. In addition laboratory experiments for water column distribution and substrate preferences were conducted using cypress, Styrofoam, and balsa. Results indicate that this population may be parthenogenic and that wood …

The Enhanced Effectiveness Of Parent Education With An Emotion Socialization Component, Angela Walter Keyees

LSU New Orleans Theses and Dissertations

Parent education programs were introduced nearly 30 years ago with a primary focus on teaching parents strategies to identify and reduce incidences of noncompliance in their children, and have been the single most successful treatment approach for reducing problem behavior. However, few parent education programs address emotion regulation and its role in children's development despite the fact that research has consistently demonstrated that children who are unable to successfully regulate emotions are more likely to develop behavioral problems. Specifically, most programs fail to address the concepts of effortful control and negative affectivity, two important components of child temperament, and their …

Biomimetics And Host-Guest Chemistry, Jiachang Gong

LSU New Orleans Theses and Dissertations

In an effort to produce the tetrahedrally coordinated, catalytically active zinc center, three families of tris(2-pyridyl)methanol derivatives were synthesized and characterized. Zinc binding studies revealed that the binding behaviors of the ligands depended on the steric and electronic properties of the substituents on the pyridyl rings, as well as the functional group on the tertiary alcohol. A novel tris-pyridyl macrocyclic receptor was synthesized. The receptor possesses both hydrogen bond donors and acceptors. NMR titration experiments revealed that the receptor simultaneously bound both ammonium cation and the counter anion. The counter anion significantly influences the association between the receptor and the …

Mechanistic Study Of Pollutant Degradation, Weixi Zheng

LSU New Orleans Theses and Dissertations

Environmental pollution has been a serious concern worldwide. Many degradation methods have been developed to clean sites contaminated with pollutants. More knowledge and better understanding in this field will help to protect our environment. The goal of the research in this thesis is to gain a better understanding of the mechanism of organic pollutant degradation in Fenton reactions and sonochemical reactions. Fenton degradation uses hydroxyl radical to oxidize organic compounds. The radical is produced by catalytic decomposition of hydrogen peroxide with Fe(II). Further research has found that addition of cyclodextrins can enhance degradation efficiency of hydrophobic organic pollutants. To study …

Identification And Characterization Of Ps-Gap As A Novel Regulator Of Caspase-Activated Pak-2, Mark A. Koeppel, Corine C. Mccarthy, Erin Moertl, Rolf Jakobi

Faculty and Staff Publications

p21-activated protein kinase (PAK)-2 is a member of the PAK family of serine/threonine kinases. PAKs are activated by the p21 G-proteins Rac and Cdc42 in response to a variety of extracellular signals and act in pathways controlling cell growth, shape, motility, survival, and death. PAK-2 is unique among the PAK family members because it is also activated through proteolytic cleavage by caspase-3 or similar proteases to generate the constitutively active PAK-2p34 fragment. Activation of full-length PAK-2 by Rac or Cdc42 stimulates cell survival and protects cells from cell death, whereas caspase-activated PAK-2p34 induces a cell death response. Caspase-activated PAK-2p34 is …

Biosorption Of Heavy Metals By Citrus Fruit Waste Materials, Santosh Bramhadev Patil

Engineering

Conventionally used processes for removing heavy metals from wastewater are usually either expensive, such as ion exchange, or inefficient, such as precipitation. An innovative technique that is both efficient and economical is biosorption, in which living and dead biomass can act as biosorbents through physical-chemical processes like ion exchange and micro-precipitation. Pectin, a structural polysaccharide present in plant cell walls, is similar to alginate, a molecule that is often responsible for the high metal uptake by algae. Based on the structural similarity between alginate and pectin, it was expected that pectin rich bio-wastes may be as good a biosorbent material …

An Experimental Investigation Of Natural Freezing And Biopolymers For Permeability Modification To Reduce The Volume Of Dense Non-Aqueous Phase Liquids In Groundwater, Neil John D'Cunha

Engineering

Dense Non-Aqueous Phase Liquid (DNAPL) contamination is one of the major environmental concerns today. DNAPL can remain in significant quantities as residual contaminants in the low permeability zones even after the bulk phase has been removed. As the drive fluid sweeps through the aquifer it follows the path of least resistance, which is the high permeability zone. Thus the contaminants trapped in the low permeability zones remain as residuals and serve as a source for prolonged contamination. Conventional remediation techniques are ill-equipped to deal with the heterogeneities of the aquifers. Various techniques to enhance the efficiency of the conventional methods …

Volume 40 - Issue 12 - Thursday, December 16, 2004, Rose Thorn Staff

The Rose Thorn Archive

The Rose Thorn, Rose-Hulman's independent student newspaper.

Clemson Commencement Program, December 2004, Clemson University

Clemson Commencement Programs

No abstract provided.

Central Florida Future, Vol. 37 No. 33, December 16, 2004

Central Florida Future

What I want for the holidays...A peek at the gifts Future writers hope to find under the tree

Concord High Teacher Honored By Unh For Outstanding Service, David Sims

Media Relations

No abstract provided.

Utb/Tsc Board Of Trustees - Minutes - 2004-12-16, University Of Texas At Brownsville And Texas Southmost College. Vice President For Administration And Partnership Affairs.

UTB/TSC Archives - UTB/TSC Board of Trustees Meetings 2003-2011

No abstract provided.

Genome Sequence Of Silicibacter Pomeroyi Reveals Adaptations To The Marine Environment, Mary Ann Moran, Alison Buchan, José M. González, John F. Heidelberg, William B. Whitman, Ronald P. Klene, James R. Henriksen, Gary M. King, Robert Belas, Clay Fuqua, Lauren Brinkac, Matt Lewis, Shivani Johri, Bruce Weaver, Grace Pai, Jonathan A. Elsen, Elisha Rahe, Wade M. Sheldon, Wenying Ye, Todd R. Miller, Jane Carlton, David A. Rasko, Ian T. Paulsen, Qinghu Ren, Sean C. Daugherty, Ribert T. Deboy, Robert J. Dodson, A. Scott Durkin, Ramana Madupu, William C. Nelson, Steven A. Sullivan, M. J. Rosovitz, Daniel H. Haft

Faculty Publications

Since the recognition of prokaryotes as essential components of the oceanic food web1, bacterioplankton have been acknowledged as catalysts of most major biogeochemical processes in the sea. Studying heterotrophic bacterioplankton has been challenging, however, as most major clades have never been cultured2 or have only been grown to low densities in sea water3,4. Here we describe the genome sequence of Silicibacter pomeroyi, a member of the marine Roseobacter clade (Fig. 1), the relatives of which comprise ∼10-20% of coastal and oceanic mixed-layer bacterioplankton2,5,6,7. This first genome sequence from any major heterotrophic clade consists of a chromosome (4,109,442 base pairs) and …

Isolation Of Cancer Stem Cells From Adult Glioblastoma Multiforme, Xianpeng Yuan, James Curtin, Yizhi Xiong, Gentao Liu, Sebastian Waschsmann-Hogiu, Daniel Farkas, Keith Black, John Yu

Articles

Glioblastoma multiforme (GBM) is the most common adult primary brain tumor and is comprised of a heterogeneous population of cells. It is unclear which cells within the tumor mass are responsible for tumor initiation and maintenance. In this study, we report that brain tumor stem cells can be identified from adult GBMs. These tumor stem cells form neurospheres, possess the capacity for self-renewal, express genes associated with neural stem cells (NSCs), generate daughter cells of different phenotypes from one mother cell, and differentiate into the phenotypically diverse populations of cells similar to those present in the initial GBM. Having a …

Critical Discourse Analysis Of Sexual Enhancement Medication Ads, John-Paul Gomez

LSU New Orleans Theses and Dissertations

This study contributes to the expanding critical range of discourse analysis by analyzing texts used to market Viagra and other "sexual enhancement medication," pharmaceuticals that treat "erectile dysfunction". Applying elements of Norman Fairclough's critical discourse analysis framework, this study examines as cultural artifacts Viagra, Levitra, and Cialis print advertisements and television commercials and it offers insight into the institutional discourse of "sexual enhancement medication" and how this discourse constructs male identity and subjectivity.

An Informatics Search For The Low-Molecular Weight Chromium-Binding Peptide, Deendayal Dinakarpandian, Vincent Morrissette, Shveta Chaudhary, Kambiz Amini, Brian Bennett, J David Van Horn

Physics Faculty Research and Publications

Background

The amino acid composition of a low molecular weight chromium binding peptide (LMWCr), isolated from bovine liver, is reportedly E:G:C:D::4:2:2:2, though its sequence has not been discovered. There is some controversy surrounding the exact biochemical forms and the action of Cr(III) in biological systems; the topic has been the subject of many experimental reports and continues to be investigated. Clarification of Cr-protein interactions will further understanding Cr(III) biochemistry and provide a basis for novel therapies based on metallocomplexes or small molecules.

Results

A genomic search of the non-redundant database for all possible decapeptides of the reported composition yields three …

Sachu Saharu: Tru Helper. A Melodic Analysis Of Christian Music In Garhwal, North India, Laura Eilders

Masters Theses

This thesis is an ethnomusicological examination of the development of indigenous worship music in Garhwal; a region in Northern India. It focuses on a comparative aspect so as to draw conclusions regarding the elements of music that is identified as Garhwali. It includes a melodic analysis of Garhwali Christian songs written by Rajesh Dongriyal and songs recorded by young women at two Garhwali villages. The theoretical framework is based upon the need of every group of people to have music about Christ in their own language and style of music. The assumption is that this will serve as a powerful …

Animal Health Matters, David H. Zeman

Animal Health MATTERS Newsletter

Head/Director's Message [Page] 1- ADRDL invited to join the NAHLN Diagnostic News [Page] 1- Bovine genital trichomoniasis in western SD [Page] 2- Testing milk for mastitis at ADRDL [Page] 2- Poultry biosecurity [Page] 2- Veterinary poultry specialists sought Research News [Page] 2- VSD/ADRDL professor receives grant to establish research center Extension News [Page] 3- Are white tail deer a threat for spreading BVDV in cattle? [Page] 3- Liver copper concentration in calves [Page] 4- Calendar of events [Page] 4- Holiday hours

Effect Of Stocking Density On Sunshine Bass (Morone Chrysops X M. Saxatilis) Production And Water Quality At Minor Clark Fish Hatchery, Kentucky, Todd A. Leonard

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the Requirements for the Degree of Master of Science by Todd A. Leonard on December 15, 2004.

Sunflower: 2004 South Dakota Hybrid Performance Trials, Kathleen Grady, Lee Gilbertson

SDSU Extension Circulars

No abstract provided.

Dec. 15. Cso Recommendations For Embedding Human Rights In Pss, Michael Bassett, Diana Bronson, Daniel Bradlow, Andrea Durbin, Steve Hertz, Petr Hlobl, David Hunter, Fergus Mackay, Anne Perrault, Jorge Daniel Taillant

IFC E&S Performance Standards

No abstract provided.

Dec. 2004, Cso Proposals For Integrating Human Rights Into Pss, Michael Bassett, Diana Bronson, Daniel Bradlow, Andrea Durbin, Steve Hertz, Petr Hlobl, David Hunter, Fergus Mackay, Anne Perrault, Jorge Daniel Taillant

IFC E&S Performance Standards

No abstract provided.

The Best Interest Standard: How Broad Judicial Discretion And Influences Of Social And Political Suggestion Have Led To An Abandonment Of The Rule’S Primary Purpose In Child Custody Decisions, Lakeisha J. Johnson

ExpressO

The vital questions in child custody disputes all concern that which is in the best interest of the child. Historically, interpretations of the “best interest” standard have been founded upon presumptions steeped in the notion of natural rights and duties based largely upon a mix of scientific and subjective conclusions regarding gender-based parenting roles and the need to sustain them. My research demonstrates that, as courts attempt to avoid the decisions of the past and submit to the societal will of the present, the modern application of the “best interest of the child” standard has led unexpectedly to an abandonment …

Ranking Usrds Provider-Specific Smrs From 1998-2001, Rongheng Lin, Thomas A. Louis, Susan M. Paddock, Greg Ridgeway

Johns Hopkins University, Dept. of Biostatistics Working Papers

Provider profiling (ranking, "league tables") is prevalent in health services research. Similarly, comparing educational institutions and identifying differentially expressed genes depend on ranking. Effective ranking procedures must be structured by a hierarchical (Bayesian) model and guided by a ranking-specific loss function, however even optimal methods can perform poorly and estimates must be accompanied by uncertainty assessments. We use the 1998-2001 Standardized Mortality Ratio (SMR) data from United States Renal Data System (USRDS) as a platform to identify issues and approaches. Our analyses extend Liu et al. (2004) by combining evidence over multiple years via an AR(1) model; by considering estimates …

Expression Of The Tobacco Β- 1,3-Glucanase Gene, Pr-2d, Following Induction Of Sar With Peronospora Tabacina, Deanna L. Funnell, Christopher B. Lawrence, Jeffrey F. Pedersen, Christopher L. Schardl

Department of Plant Pathology: Faculty Publications

Systemic acquired resistance (SAR) is induced following inoculation of Peronospora tabacina sporangia into the stems of Nicotiana tabacum plants highly susceptible to the pathogen. Previous results have shown that accumulation of acidic P-1,3-glucanases (PR-2's) following induction of SAR by P. tabacina may contribute to resistance to P. tabacina. We showed that up-regulation of the PR-2 gene, PR-2d, following stem inoculation with P. tabacina, is associated with SAR. Studies using plants transformed with GUS constructs containing the full length promoter from PR-2d or promoter deletions, provided evidence that a previously characterized regulatory element that is involved in response to …

4-Coumarate Co-Enzyme A Ligase Promoter, Vincent Lee C. Chiang, Chung-Jui Tsai, Wen-Jing Hu

Michigan Tech Patents

The present invention provides a Populus 4-coumarate Co-enzyme A ligase gene promoter that directs expression in the xylem of plants. The promoter is used in methods designed to alter lignin content, lignin structure, cellulose content and combinations thereof. The methods comprise operably linking said promoter to heterologous nucleic acid molecules.

The Kidney-Specific Wnk1 Isoform Is Induced By Aldosterone And Stimulates Epithelial Sodium Channel-Mediated Na+ Transport, Anikó Naray-Fejes-Toth, Peter M. Snyder, Géza Fejes-Toth

Dartmouth Scholarship

WNK1 belongs to a unique family of Ser/Thr kinases that have been implicated in the control of blood pressure. Intronic deletions in the WNK1 gene result in its overexpression and lead to pseudohypoaldosteronism type II, a disease with salt-sensitive hypertension and hyperkalemia. How overexpression of WNK1 leads to Na⁺ retention and hypertension is not entirely clear. Similarly, there is no information on the hormonal regulation of expression of WNK kinases. There are two main WNK1 transcripts expressed in the kidney: the originally described “long” WNK1 and a shorter transcript that is specifically expressed in the kidney (KS-WNK1). The goal …