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Implications Of Child Abduction For Human Rights And Child Welfare Systems: A Constructivist Inquiry Of The Lived Experience Of Guatemalan Mothers Publically Reporting Child Abduction For Intercountry Adoption, Carmen Monico May 2013

Implications Of Child Abduction For Human Rights And Child Welfare Systems: A Constructivist Inquiry Of The Lived Experience Of Guatemalan Mothers Publically Reporting Child Abduction For Intercountry Adoption, Carmen Monico

Theses and Dissertations

The Hague Convention on the Protection of Children and Co-operation in Respect of Intercountry Adoption was agreed upon in 1993 at the Hague Conference on Private International Law to address growing allegations of abduction, sale, and trafficking of children around the world. The Hague Convention guides countries to attend to the “best interest of the child” in making decisions on intercountry adoptions, and to apply the “principle of subsidiarity,” which calls for the consideration of family and kinship placement and national adoption prior to the consideration of intercountry adoption. This dissertation research focused on the experience of Guatemalan mothers reporting …


Selection Of A Non-Phosphorylated Peptide Inhibitor Of Brca1’S (Brct)2 Domain, Railey White May 2013

Selection Of A Non-Phosphorylated Peptide Inhibitor Of Brca1’S (Brct)2 Domain, Railey White

Theses and Dissertations

A growing body of literature suggests Breast Cancer-Associated Protein 1 (BRCA1) is important not only as a cause, but also as a target in the quest for cancer treatment. BRCA1 deficient cells treated with radiation as well as PARP inhibitors and other chemotherapeutics demonstrate a greater sensitivity than cells with wild type BRCA1. Inhibitors of BRCA1 would take advantage of this synthetic lethality and represent a significant advance in cancer treatment as well as an understanding of the biology of DNA repair. Despite significant study of BRCA1 protein and function, it is a large protein (220 KDa) that is still …


Intra-Mitochondrial Injury During Ischemia-Reperfusion, Hema Aluri May 2013

Intra-Mitochondrial Injury During Ischemia-Reperfusion, Hema Aluri

Theses and Dissertations

Cardiac injury is increased following ischemia-reperfusion. Mitochondria are the “effector organelles” that are damaged during ischemia (ISC) when there is no blood flow. Resumption of metabolism by damaged mitochondria during reperfusion (REP) results in increased cell injury. Current therapeutic interventions to pre-condition and post-condition the heart during ISC are ineffective during certain conditions like aging and diabetes due to defects in the signaling cascades. In contrast, mitochondrial-based strategies are effective in protecting the heart during ISC-REP. Hence direct therapeutic targeting of dysfunctional mitochondria will provide the potential to bypass the upstream signaling defects and intervene directly upon the effector organelle. …


Isolation, Characterization And Synthesis Of Asthma Inducing Fungal Glycolipid And Analytical Method Development For Novel Antimicrobial Peptide Mimics, Vinod Chaudhary May 2013

Isolation, Characterization And Synthesis Of Asthma Inducing Fungal Glycolipid And Analytical Method Development For Novel Antimicrobial Peptide Mimics, Vinod Chaudhary

Theses and Dissertations

NKT cells are an important part of human immune system and recognize a specific set of antigens called glycolipids. Only a handful of "natural" NKT cell antigens are known till date. Although NKT cells play a protective role against pathogenic organisms, imbalances in NKT cell functions are implicated in many diseases including asthma. Allergic asthma, a Th2 driven inflammation of airways, is primarily caused by inhalation of environmental allergens. In the last decade, inhaled allergen Aspergillus fumigatus has been under scrutiny for the presence of NKT cell antigens that might trigger asthma. We successfully isolated, characterized and synthesized a "natural" …


Synthesis And Immunological Evaluation Of Type I, Type Ii, And Gamma Delta Nkt Cell Antigens, Brian L. Anderson May 2013

Synthesis And Immunological Evaluation Of Type I, Type Ii, And Gamma Delta Nkt Cell Antigens, Brian L. Anderson

Theses and Dissertations

The purpose of the immune system is to protect our bodies from infection. One way it accomplishes this task is through the presentation of foreign pathogens to NKT cells. After an antigen is presented to the T cell receptor, activated NKT cells quickly release soluble chemical signals, termed chemokines and cytokines, that modulate the response of the immune system. Due to the immunological relevance of NKT cell activation, we developed and synthesised non-natural analogs of immunostimulatory type I, II, and gamma delta NKT cell antigens. The immunological evaluations of these analogs resulted in identification of sulfatide as a gamma delta …


The State Of The Research: Meta-Analysis And Conceptual Critique Of Mild Traumatic Brain Injury, Ryan Lance Nelson May 2013

The State Of The Research: Meta-Analysis And Conceptual Critique Of Mild Traumatic Brain Injury, Ryan Lance Nelson

Theses and Dissertations

Researchers studying the long-term cognitive sequelae of mild traumatic brain injury (mTBI) have produced disparate results. Some studies have shown little to no long-term cognitive effects while others have shown that persistent cognitive sequelae continue to affect a subgroup of patients. Meta-analysis has been used to try to integrate these contrasting results to foster a coherent understanding of the cognitive outcomes following mTBI. However, previous meta-analyses of long-term cognitive sequelae have used studies from a period of mTBI research where methodological rigor has been called into question (Carroll, Cassidy, Holm, Kraus, & Coronado, 2004). Using studies from this period, meta-analysts …


The Capacity To Lead: Building A Collaborative Organization Through A Shared Vision And Improved Staff Capacity In An Inclusive New Jersey Preschool, Kathleen Mccabe-Odri May 2013

The Capacity To Lead: Building A Collaborative Organization Through A Shared Vision And Improved Staff Capacity In An Inclusive New Jersey Preschool, Kathleen Mccabe-Odri

Theses and Dissertations

The purpose of my dissertation study was to examine my own leadership in the context of the community inclusive preschool that I own and operate along with my business partner. The focus was to build a collaborative organization through a shared vision and improved staff skill capacity. In order to implement the change process, I chose the specific learning environment of our instructional student centers (i.e., "zones") as the setting to conduct my action research project. The study describes both my personal leadership theory as well as an analysis of my leadership actions (i.e., theory in use) in order to …


Water Soluble Polymer Solar Cells From Electrospray Deposition, Marshall Sweet May 2013

Water Soluble Polymer Solar Cells From Electrospray Deposition, Marshall Sweet

Theses and Dissertations

This dissertation reports the fabrication and characterization of thin films from the water soluble polymer sodium poly[2-(3-thienyl)-ethyloxy-4-butylsulfonate] (PTEBS) by electrospray deposition (ESD). Contiguous thin films were created by adjusting the parameters of the electrospray apparatus and solution properties to maintain a steady Taylor cone for uniform nanoparticle aerosolization and controlling the particle water content to enable coalescence with previously deposited particles. The majority of deposited particles had diameters less than 52 nm. A thin film of 64.7 nm with a root mean square surface roughness of 20.2 nm was achieved after 40 minutes of ESD. Hybrid Solar Cells (HSCs) with …


Water Quality Modeling In The Ross Barnett Reservoir Using Environmental Fluid Dynamics Code, Gregory Alan Jackson May 2013

Water Quality Modeling In The Ross Barnett Reservoir Using Environmental Fluid Dynamics Code, Gregory Alan Jackson

Theses and Dissertations

This thesis investigates the utilization of hydrodynamic models as tools for assessing factors impacting water quality in the Ross Barnett Reservoir. The primary focus is development of a hydrodynamic model that provides transport information to subsequent application of a water quality model. Environmental Fluid Dynamics Code (EFDC) is a complex, dynamic, multi-dimensional computer model used to simulate hydrology in water bodies. The secondary focus is on data acquisition and manipulation methods for completing the hydrodynamic modeling. Monitoring was completed to create modern bathymetry of Ross Barnett Reservoir to provide accurate model cell grid representation. Temperature and dissolved oxygen profile monitoring …


Creation Of A Computational Simulation Of Maternal Trauma In Motor Vehicle Accident, Benjamin C. Weed May 2013

Creation Of A Computational Simulation Of Maternal Trauma In Motor Vehicle Accident, Benjamin C. Weed

Theses and Dissertations

Maternal trauma is the leading non-obstetric cause of maternal and fetal death. Because the anatomy of a pregnancy is distinct, and highly transient, the pregnant woman and her fetus are both susceptible to injuries which are not seen in the typical trauma patient. The pregnant uterus, the placenta, and the fetus are all relatively poorly supported, as compared with non-transient abdominal or thoracic organs, which can lead to injuries such as uterine rupture, placental abruption, and fetal trauma or death. The leading cause of maternal trauma is automotive collision, and other common causes include violence, falls, and other accidents. Automotive …


Evaluation Of Nitrification And Methods To Minimize Denitrification Loss For Rice (Oryza Sativa L.) On Mississippi Alluvial Plain Soils, Paxton Wayne Fitts May 2013

Evaluation Of Nitrification And Methods To Minimize Denitrification Loss For Rice (Oryza Sativa L.) On Mississippi Alluvial Plain Soils, Paxton Wayne Fitts

Theses and Dissertations

Minimal studies have evaluated nitrification and subsequent denitrification for soils where rice is produced in the delayedlood system. Laboratory and field experiments were conducted at USDA-ARS and the Delta Research and Extension Center in Stoneville, MS to quantify the nitrification potential of southern USA soils, and evaluate nitrogen amendments aimed to reduce nitrification rates on clay soils. The Sharkey clay soil at Stoneville, MS was one of the soils with the greatest nitrification potential. Dicyandiamide (DCD) increased the number of days that half the total recovered inorganic–N was in the ammonium–N form (half-life) by approximately 3old and 18% when compared …


Fermentation Of Glycerol To Biogas Under Isobaric And Variable Pressure Conditions, Benjamin P. Hartenbower May 2013

Fermentation Of Glycerol To Biogas Under Isobaric And Variable Pressure Conditions, Benjamin P. Hartenbower

Theses and Dissertations

With consideration to the crude glycerol surplus driven by the growth in biodiesel manufacturing, alternative uses for biodiesel derived glycerol have become increasingly essential. Anaerobic digestion of the glycerol reduces the chemical oxygen demand of the glycerol waste product, while capturing biogas as an energy source that can be used on site to reduce heating cost at a biodiesel facility. In this thesis, kinetic parameters are extracted from batch experimental data and applied to steady state equations. A flow sheet for the application of anaerobic digestion to biodiesel derived glycerol is developed and explored. The economic analysis of the scenario …


Conversation Of Values: A Community Perspective Of Sustainable Development Criteria Concerning Revitalization Efforts In Jackson, Mississippi, Kenneth Barry White May 2013

Conversation Of Values: A Community Perspective Of Sustainable Development Criteria Concerning Revitalization Efforts In Jackson, Mississippi, Kenneth Barry White

Theses and Dissertations

Jackson, Mississippi is currently undergoing a revitalization movement in an attempt to revive its blighted downtown core. While physical development is crucial to revival of the downtown landscape, the cultural landscape must also be considered. I hypothesized that developers, business owners, and residents working or living in and around downtown Jackson would report differing desires, positions, and values concerning four elements of sustainable development: cultural, economic, political, and environmental. Ultimately, the hypothesis was refuted according to the quantitative data analysis. However, there were different understandings within the qualitative data where the substance of this research project can be found. These …


The Influence Of Cyclic Pressure And Angiotensin Ii On The Biomechanical Properties Of Aortic Heart Valves, Valtresa Shena Myles May 2013

The Influence Of Cyclic Pressure And Angiotensin Ii On The Biomechanical Properties Of Aortic Heart Valves, Valtresa Shena Myles

Theses and Dissertations

Hypertension, a risk factor for aortic valve stenosis, increases transvalvular load and can elicit extracellular matrix (ECM) remodeling. Elevated cyclic pressure and the vasoactive agent angiotensin II (Ang II) both promote collagen synthesis, an early hallmark of aortic sclerosis. It was hypothesized that increased collagen production induced by elevated pressure conditions or the presence of Ang II would affect the mechanical properties of leaflet tissue by decreasing extensibility. Porcine aortic valve leaflets were exposed to pressure conditions of increasing magnitude with and without Ang II. Biaxial mechanical testing was performed to determine peak stretch. Collagen content was determined using a …


Investigation Into The Effect Of Strong Oxidizers On The Electrokinetic Removal Of Chromium, Copper, And Arsenic From Cca Impregnated Wood Waste, John Amos Broussard May 2013

Investigation Into The Effect Of Strong Oxidizers On The Electrokinetic Removal Of Chromium, Copper, And Arsenic From Cca Impregnated Wood Waste, John Amos Broussard

Theses and Dissertations

The focus of this research is to determine the effects of particle size reduction and chemical pretreatment with strong base oxidizers on the effectiveness of the electrokinetic remediation of wood waste contaminated with chromated copper arsenate. Selection of an oxidative chemical pretreatment solution involved an initial screening between three pre-selected chemicals followed by optimization of oxidative chemical solution strengths and solid to liquid ratios. Samples of each of the three particle sizes were chemically treated with the final oxidative pretreatment and loaded into electrokinetic units where a direct current was applied for approximately fifty days. Similar experiments were performed without …


Techniques For Li-Bdn Synthesis For Hybrid Microarchitectural Simulation, Tyler S. Harris May 2013

Techniques For Li-Bdn Synthesis For Hybrid Microarchitectural Simulation, Tyler S. Harris

Theses and Dissertations

Computer designers rely upon near-cycle-accurate microarchitectural simulation to explore the design space of new systems. Unfortunately, such simulators are becoming increasingly slow as systems become more complex. Hybrid simulators which offload some of the simulation work onto FPGAs can increase the speed; however, such simulators must be automatically synthesized or the time to design them becomes prohibitive. Furthermore, FPGA implementations of simulators may require multiple FPGA clock cycles to implement behavior that takes place within one simulated clock cycle, making correct arbitrary composition of simulator components impossible and limiting the amount of hardware concurrency which can be achieved. Latency-Insensitive Bounded …


Effect Of Plant-Based Filtration And Bio-Treatment On Toxicity Of Bio-Oil Process Water, Toktam Moghbeli May 2013

Effect Of Plant-Based Filtration And Bio-Treatment On Toxicity Of Bio-Oil Process Water, Toktam Moghbeli

Theses and Dissertations

This study evaluated physical and biological treatments of bio-oil process water to decrease organic contaminants. A three-sequential-column filtration system compared four treatments: three columns filled with kenaf only; three columns filled with wood shavings only; first column filled with wood shavings and two with kenaf; and first column filled with kenaf and two with wood shavings. The kenaf and wood shavings were composted after filtration. The filtrate water underwent further bio-treatment by adding aeration and selected bacteria. After filtration and bio-treatment, oil and grease concentrations were reduced over 80 percent and toxicity reduced over 90 percent. There were no significant …


Examining The Role Of L-Arginine In Tissues Of The Fetoplacental Unit And Endometrium, Jonathan Michael Greene May 2013

Examining The Role Of L-Arginine In Tissues Of The Fetoplacental Unit And Endometrium, Jonathan Michael Greene

Theses and Dissertations

L-arginine is one of the most versatile amino acids due to the fact that it serves as a precursor for many molecules which have important roles in bodily functions including mammalian reproduction. The current studies sought to further examine the role that L-arginine has in mammalian reproduction utilizing both in vivo and in vitro approaches. In the first study, a novel bioluminescent murine pregnancy model was developed to monitor VEGFR2 transcription activity non-invasively in the fetoplacental unit. Secondly, the effect that dietary L-arginine supplementation has during mouse gestation was examined. L-arginine supplementation increased weight gain during the latter third of …


The Use Of Summer Cover Crops And Composted Broiler Litter In Fall Organic Vegetable Production, Sarah M. Reynolds May 2013

The Use Of Summer Cover Crops And Composted Broiler Litter In Fall Organic Vegetable Production, Sarah M. Reynolds

Theses and Dissertations

Cover crops and composted broiler litter (CBL) are two organic methods used to improve soils and organic vegetable production. The objectives of this study included determining the extent summer cover crops and CBL alter nutrient availability in soil, determining how summer cover crops and CBL influence fall vegetable crops in organic production systems and identifying which cover crops/ CBL combinations improve fall vegetable crop production best. Four cover crops were tested: sunn hemp (Crotalaria juncea), sesame (Sesamum indicum), sorghum sudan grass (Sorghum X drummondii) and a sunn hemp + sesame blend, in combination with four composted broiler litter rates: 0, …


Salt Marsh Sediment Biogeochemical Response To The Bp Deepwater Horizon Blowout (Skiff Island, La, And Cat Island, Marsh Point And Saltpan Island, Ms), Calista Lee Guthrie May 2013

Salt Marsh Sediment Biogeochemical Response To The Bp Deepwater Horizon Blowout (Skiff Island, La, And Cat Island, Marsh Point And Saltpan Island, Ms), Calista Lee Guthrie

Theses and Dissertations

The impact of the Deepwater Horizon blowout on coastal wetlands can be understood through investigating carbon loading and microbial activity in salt marsh sediments. Carbon influx causes pore water sulfide to increase in wetland sediment, making it toxic and inhospitable to marsh vegetation. High sulfide levels due to increased microbial activity can lead to plant browning and mortality. Preliminary analyses at Marsh Point, Mississippi indicated that sulfate reducing bacteria are more active in contaminated marsh, producing sulfide concentrations 100x higher than in noncontaminated marsh. Sediment electrode profiles, hydrocarbon contamination, and microbial community profiles were measured at three additional locations to …


Spatial And Temporal Distribution Of Microbial Pathogens In Poultry Litter And The Development Of Microbial Inactivation Constants In Waste Application, Brandy Nicole Roberts May 2013

Spatial And Temporal Distribution Of Microbial Pathogens In Poultry Litter And The Development Of Microbial Inactivation Constants In Waste Application, Brandy Nicole Roberts

Theses and Dissertations

The increase in production farming, also known as concentrated animal feeding operations (CAFOs), garners more investigations on the implications to public health regarding the disposal of the wastes of food production animals. In addition to the vast amount of animal manure produced, human biosolids is another waste residual that must be managed. The research focus was the sustainability of foodborne pathogens in waste products and the variables that manipulate these environments such as moisture, temperature, organic matter and time. The first study was designed to analyze spatial differences in microbial populations in broiler litter by investigating the relationship of intra-house …


Neural Protection In The Central Nervous System Against Nerve Agent Surrogates Using Novel Pyridinium Oximes, Ronald B. Pringle May 2013

Neural Protection In The Central Nervous System Against Nerve Agent Surrogates Using Novel Pyridinium Oximes, Ronald B. Pringle

Theses and Dissertations

Organophosphates (OPs), including nerve agents, target the cholinergic system via inhibition of acetylcholinesterase (AChE), with subsequent overstimulation resulting in neural damage and potential detrimental long-term effects. The efficacy of novel pyridinium oxime reactivators, created with moieties to increase blood-brain barrier penetration, was tested using highly relevant sarin and VX surrogates. Glial fibrillary acidic protein (GFAP; an indicator of neural damage) and monoamines (dopamine, serotonin, and their metabolites) were measured in select brain regions via immunohistochemistry and HPLC, respectively. Adult male rats were treated ip with high, sub-lethal doses of surrogates for sarin or VX, nitrophenyl isopropyl methylphosphonate (NIMP) or nitrophenyl …


Nutrient Mitigation Capacity Of Low-Grade Weirs In Agricultural Drainage Ditches, Kent Alexander Littlejohn May 2013

Nutrient Mitigation Capacity Of Low-Grade Weirs In Agricultural Drainage Ditches, Kent Alexander Littlejohn

Theses and Dissertations

Installation of low-grade weirs in agricultural drainage ditches is being evaluated as an innovative, and cost effective, management practice that decreases nutrient concentrations and loads by increasing water volume and hydraulic residence time of the ditch. Results revealed that weirs significantly increased (P = 0.029) hydraulic residence time (HRT) and ditch water volumes, leading to considerable reductions in outflow water volumes (61%). Furthermore, ditches with weirs achieved greater (P = 0.09) cumulative outflow load reductions (96%) and greater (P = 0.029) concentration reductions during the biogeochemical reduction phase of the experiment. Similarly, field research from Terrace Ditch in Yazoo County, …


Nutritional Profile Of Native Warm-Season Grass Grown As A Mono- Or Multi-Species Pasture, Babatunde Oloyede May 2013

Nutritional Profile Of Native Warm-Season Grass Grown As A Mono- Or Multi-Species Pasture, Babatunde Oloyede

Theses and Dissertations

The objective of this study was to evaluate the nutritional profile of mono- or multi-species pastures of native warm season grasses. One of four treatments were randomly assigned to Twelve pastures: 1) BG; 2) IG; 3) Mix G; 4) Mix NG. Growing steers (n = 225) were randomly assigned to one of nine pastures. Grass samples were taken from all pastures every 28 days during a four-month period and were analyzed for nutrient composition. Bermudagrass pastures had greater crude protein and ADF, but less NDF concentrations compared with the native warm-season grasses. Crude protein, IVDMD, and NDF IVDMD concentration decreased …


Opportunities, Issues, And Economic Potential Of Wood-Based Bioenergy In Mississippi, Omkar Joshi May 2013

Opportunities, Issues, And Economic Potential Of Wood-Based Bioenergy In Mississippi, Omkar Joshi

Theses and Dissertations

While the southeastern United States, including the state of Mississippi, has a strong natural resource base, woody biomass is not fully utilized to produce bioenergy in this region. This study intended to explore opportunities, issues, and the economic potential of wood-based bioenergy in the state of Mississippi. Realizing the importance of private forest landowner decisions in sustaining a bioenergy feedstock supply, one aim of this study was to understand their choices for preferred harvesting methods of supplying woody biomass for wood-based bioenergy industries. Study results indicated that landowners were interested in optimizing revenue from woody biomass utilization while minimizing damage …


Possible Causes Of Testicular Germ Cell Tumor And Its Association With Male Infertility, Wael Ahmed Badran May 2013

Possible Causes Of Testicular Germ Cell Tumor And Its Association With Male Infertility, Wael Ahmed Badran

Theses and Dissertations

Testicular germ cell tumors (TGCTs) are thought to arise during early embryogenesis due to the arrest of germ cell differentiation at primordial germ cells (PGCs) or gonocytes. Oxidative stress (OS) is implicated in cancer development as a factor leading to DNA damage. Reactive oxygen species (ROS) -induced instability occurs as a series of progressive steps. The cell has several defense mechanisms against the deleterious effect of ROS (e.g. antioxidants and DNA repair). When the defense mechanisms are exhausted by increasing OS, DNA damage leads to genomic instability with subsequent mutations that can be transmitted during cell division. On the other …


Development Of Safe And Efficacious Live Attenuated Edwardsiella Ictaluri Vaccines Against Enteric Septicemia Of Catfish, Neeti Dahal May 2013

Development Of Safe And Efficacious Live Attenuated Edwardsiella Ictaluri Vaccines Against Enteric Septicemia Of Catfish, Neeti Dahal

Theses and Dissertations

Edwardsiella ictaluri is the causative agent of enteric septicemia of catfish (ESC), which is the most economically important disease of farm-raised channel catfish. E. ictaluri is considered a facultative intracellular pathogen like other well-known species in the Enterobacteriaceae, and it is capable of surviving inside channel catfish neutrophils and macrophages. Its ability to survive inside neutrophils and macrophages has made the development of an effective vaccine against ESC particularly challenging. The goal is to develop a safe, efficacious live attenuated ESC vaccine that is practical and economically beneficial to catfish producers. In this study, single and combination of mutations in …


Digestibility Of Different Multi-Species Native Warm-Season Grass Mixtures Grown In Varied Harvest Regimen, Janet Moromoke Ogunlade May 2013

Digestibility Of Different Multi-Species Native Warm-Season Grass Mixtures Grown In Varied Harvest Regimen, Janet Moromoke Ogunlade

Theses and Dissertations

Study was conducted to evaluate in vitro digestibility of native warm-season grasses. Three grasses were used: big bluestem (Andropogon gerardii Vitman), little bluestem (Schizachyrium scoparium Nash), and indiangrass (Sorghastrum nutans Nash). There were no differences in NDF, ADF, FAT and OM of the three grass species. However, DM, hemicellulose and CP were slightly different in the three grass species. Also, the frequency nested in cutting effects was determined. In vitro dry matter disappearance of big bluestem, little bluestem and indiangrass was evaluated to determine rate of disappearance. The 100 % indiangrass revealed the greatest rate of disappearance for IVDMD and …


Isolation, Antibiotic Resistance And Clonal Similarities Of Salmonella Spp. In Catfish And Processing Facilities, Norman N. Arroyo Llantin May 2013

Isolation, Antibiotic Resistance And Clonal Similarities Of Salmonella Spp. In Catfish And Processing Facilities, Norman N. Arroyo Llantin

Theses and Dissertations

Salmonella spp. is a human pathogen that has been reported in catfish, but with conflicting results. Salmonella spp. was isolated from live catfish, catfish products and the processing environment during catfish production, followed by evaluation of their antibiotic resistance and clonal similarities. Distinction of Salmonella spp. was increased by lowering background microflora with the addition of the antimicrobial novobiocin to the agar media. More than ten Salmonella serotypes were isolated from catfish and catfish products, such as live, chilled fillets, frozen fillets, and conveyor belts in catfish processing facilities. The isolates that were recovered include Salmonella ser. Typhimurium, Barranquilla, Mbadaka, …


Limnological Influence Of Dams Placed In Series Along The Perak River, Malaysia, Zarul Hazrin Hashim May 2013

Limnological Influence Of Dams Placed In Series Along The Perak River, Malaysia, Zarul Hazrin Hashim

Theses and Dissertations

An 18-month study (July 2009 – December 2010) was conducted to determine the influence of four dams located in series along the Perak River, in Malaysia: Temengor, Bersia, Kenering and Chenderoh dams. The framework for investigation centered around the Serial Discontinuity Concept (SDC) and the Cascading Reservoir Continuum Concept (CRCC). In addition to reservoir, tailwater and riverine reach characteristics, the interacting influences of tributary streams and watersheds were addressed. Variables included in-situ environmental physical parameters, nutrients, seston concentration and transport, and fish assemblage characteristics. In-situ variables, water and seston samples, were recorded/collected monthly from all four reservoirs, their associated riverine …