Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2008

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 13081 - 13110 of 15505

Full-Text Articles in Entire DC Network

A Determination Of The Physical, Chemical, And Biological Features Of Suspended Dark Flecks In Hot Sauce, Andre Brock Jan 2008

A Determination Of The Physical, Chemical, And Biological Features Of Suspended Dark Flecks In Hot Sauce, Andre Brock

LSU Master's Theses

Hot pepper and hot sauce production and consumption in the United States are on the rise. The demands of consumers need to be met by high-quality products in an increasingly competitive market. Increasingly knowledgeable and discerning consumers notice any problems in hot sauce, and problems with appearance are often the first noticed. A well-known and successful hot sauce company has found an occasional problem with discoloration in their flagship product. Small dark specks have been found in the sauce, and the company in question is interested in elucidating their makeup and cause. This is of especially pertinent scientific interest because …

Go to article

Succession Of Coleoptera On Freshly Killed Loblolly Pine (Pinus Taeda L.) And Southern Red Oak (Quercus Falcata Michaux) In Louisiana, Stephanie Gil Jan 2008

Succession Of Coleoptera On Freshly Killed Loblolly Pine (Pinus Taeda L.) And Southern Red Oak (Quercus Falcata Michaux) In Louisiana, Stephanie Gil

LSU Master's Theses

Wood is important in forest ecology because its large biomass serves as a nutritional substrate and habitat for many organisms, including Coleoptera, and beetles contribute greatly to nutrient recycling in forests. Overlapping complexes of beetles invade dead wood according to the species of tree, ambient conditions, and most importantly, stage of decomposition. Beetle succession was studied in loblolly pines (Pinus taeda L.) and southern red oaks (Quercus falcata Michx.) by documenting beetle arrival and residency in cut, reassembled, and standing bolts. Twelve trees of each species at Feliciana Preserve in West Feliciana parish, LA were felled during October 2004 and …

Go to article

Harding University Graduate Catalog 2008-2009, Harding University Jan 2008

Harding University Graduate Catalog 2008-2009, Harding University

Harding Academic Catalogs

No abstract provided.

Go to article

Feed Comparison For Dietary Standardization Of The Sea Urchin Lytechinus Variegatus And Assessment Of Parental Dietary Copper Toxicity By Fertilization And Embryological Tests, Heath W. Garris Jan 2008

Feed Comparison For Dietary Standardization Of The Sea Urchin Lytechinus Variegatus And Assessment Of Parental Dietary Copper Toxicity By Fertilization And Embryological Tests, Heath W. Garris

All ETDs from UAB

Toxicity tests monitoring the effects of anthropogenic substances on marine systems are considered an important part of environmental management. Sea urchin fertilization and embryological toxicity tests are successful in producing a graded response to toxicants, but standards for controlling the quality of parental urchins have not been developed. In Chapter 1, experimental populations of Lytechinus variegatus were fed either organic romaine lettuce and organic carrots, or a feed formulated for sea urchins for 13 weeks. Growth demographics were assessed and F1 progeny were compared for sensitivity to the toxicants copper sulfate, 1,3,5-trinitrobenzene, and sodium dodecyl sulfate by acute embryonic and …

Go to article

The Impacts Of River Impoundment: A Case Study Of H. Neely Henry Lake In Northeast Alabama, Willis Scott Estis Jan 2008

The Impacts Of River Impoundment: A Case Study Of H. Neely Henry Lake In Northeast Alabama, Willis Scott Estis

LSU Master's Theses

Dam building is one of the methods that modern civilization uses in an attempt to harness the power of nature. These dams and the impoundments associated with them can contribute numerous positive impacts to the surrounding human population. Unfortunately, there are negative impacts as well. This research focuses on one impoundment in particular, H. Neely Henry Lake in northeast Alabama (an impoundment of the Coosa River). Site-specific information regarding the H. Neely Henry development is explored including area geography, history, and the formation of the Alabama Power Company – the agency responsible for H. Neely Henry and other Coosa River …

Go to article

The Design And Fabrication Of Pentacene Acoustic Charge Transfer Devices, Hua Shao Jan 2008

The Design And Fabrication Of Pentacene Acoustic Charge Transfer Devices, Hua Shao

LSU Master's Theses

Acoustic charge transport (ACT) devices are used to transfer electrical signals by surface acoustic waves (SAW), which are generated by interdigital transducers (IDT) on piezoelectric crystal substrates. In order to reduce fabrication cost, pentacene ACT is desired to transfer charge packages because of its reduced cost in. As some researchers reported, pentacene is a p type organic semiconductor, and can get high carrier mobility by growing in very pure crystalline structure under some specified growing conditions. In this project, charge transfer channel was made of crystal pentacene to form and carry the charge packages following SAW propagation. The pentacene ACT …

Go to article

Development And Quality Evaluation Of Pre- And Post-Workout Sport Beverages, Maria Christine Pfister Jan 2008

Development And Quality Evaluation Of Pre- And Post-Workout Sport Beverages, Maria Christine Pfister

LSU Master's Theses

Athletes and gym goers are continuously searching for sports supplements that will set them apart from others. Resistance training is a popular form of exercise that enables one to increase in strength and power. Resistance or strength training, however, results in several degradation processes. A popular way of enhancing workouts and recovering after workouts is through the consumption of sports drinks. In study one, a preliminary study, eight pre-workout and eight post-workout sports drinks were formulated that contained whey proteins, sugars, natural fruit flavors, and other vitamins and supplements. A consumer acceptance test was preliminarily conducted to evaluate consumer acceptability …

Go to article

Characterization Of The Lucinid Bivalve-Bacteria Symbiotic System: The Significance Of The Geochemical Habitat On Bacterial Symbiont Diversity And Phylogeny, Angela Marissa Green-Garcia Jan 2008

Characterization Of The Lucinid Bivalve-Bacteria Symbiotic System: The Significance Of The Geochemical Habitat On Bacterial Symbiont Diversity And Phylogeny, Angela Marissa Green-Garcia

LSU Master's Theses

Extensive characterization of a single lucinid bivalve habitat was conducted to characterize the relationship between host bivalve and thiotrophic bacterial endosymbionts. For lucinids, the ecological and evolutionary relationships between hosts and endosymbionts are poorly understood. Reconstructing the evolutionary history of lucinid endosymbiosis, and the geologic significance of the association, has been hampered by insufficient knowledge of endosymbiont ecology and taxonomic diversity. Host organisms (Lucinisca nassula and Phacoides pectinatus) were collected from Cedar Keys, Florida, within the top 15-20 cm of the sediment in sea grass beds. PCR amplification and sequencing of bacterial 16S rRNA genes from lucinid gills and sediment …

Go to article

Maternal Corticosterone Influences On Fear Responses In Offspring Of Quail Divergent Stress Response Lines, Kyndal A. Davis Jan 2008

Maternal Corticosterone Influences On Fear Responses In Offspring Of Quail Divergent Stress Response Lines, Kyndal A. Davis

LSU Master's Theses

Increased fearfulness has been associated with adrenocortical activation. Maternal corticosterone (B) treatment increases egg yolk B, and elevated B in ovo enhances chick avoidance of humans. Quail selected for exaggerated (high stress, HS) as opposed to reduced (low stress, LS) plasma B response to stress are more fearful, and more B is found in the egg yolks of HS than LS hens. Therefore, the underlying fearfulness (tonic immobility, TI) and timidity (hole-in-the-wall box, HWB, emergence) responses were assessed in chicks hatched from eggs of LS and HS hens implanted with silastic tubes containing no B (CON) or B (B-IMPLANT) during …

Go to article

Effects Of Handedness On The Skull And Shoulder Bones, Michelle Lynn Osborn Jan 2008

Effects Of Handedness On The Skull And Shoulder Bones, Michelle Lynn Osborn

LSU Master's Theses

The unique configuration of the human clavicle and mastoid process suggests a functional connection between the head and shoulders in humans. The hypothesis in this study is that the clavicle, scapula and head form a functional complex and are interconnected by the sternocleidomastoid and trapezius muscles. In this complex, the trapezius muscles attach to the skull and become active when loads are carried. The sternocleidomastoid muscles are anchored to the clavicles; when loads are being carried, they act as guy ropes for the head, thereby keeping the head from being extended by the force of the contracting trapezius muscles. These …

Go to article

Evidence Of Pulmonary Disease In The Poole-Rose Ossuary Population: An Analysis Of The Ribs, Lisa Elaine Baumer Jan 2008

Evidence Of Pulmonary Disease In The Poole-Rose Ossuary Population: An Analysis Of The Ribs, Lisa Elaine Baumer

LSU Master's Theses

This study reports on the demographics and evidence of pulmonary disease in the Poole-Rose Ossuary which was excavated in 1990 under the direction of Heather McKillop. The bones are being studied at the request of the Alderville First Nation. Radiocarbon dated to A.D. 1550 ± 50 years, the skeletal material is a co-mingled collection that is consistent with a mass secondary burial event known as the Feast of the Dead often associated with the Huron. The ribs were used in this study. The condition of the ribs was highly fragmented. The minimum number of individuals for this study was 49 …

Go to article

Opportunities And Challenges Associated With Development Of Wood Biomass Energy Production In Louisiana, Anil Raj Kizhakkepurakkal Jan 2008

Opportunities And Challenges Associated With Development Of Wood Biomass Energy Production In Louisiana, Anil Raj Kizhakkepurakkal

LSU Master's Theses

Wood residue produced by forest products industry has been recognized as a potential fuel that can generate energy to run the industry. A survey was done among forest products industry to get a general idea about energy produced from woody biomass created from forest industry in Louisiana, USA. The industry was classified into primary and secondary forest products industry. The study provided information regarding utilization and wastage of wood residue. Survey response rate was 25 percent. It addressed problems faced by wood residue energy development and came up with solution to solve them. When survey results were compared to previous …

Go to article

Dynamic Workflow Management For Large Scale Scientific Applications, Emir Mahmut Bahsi Jan 2008

Dynamic Workflow Management For Large Scale Scientific Applications, Emir Mahmut Bahsi

LSU Master's Theses

The increasing computational and data requirements of scientific applications have made the usage of large clustered systems as well as distributed resources inevitable. Although executing large applications in these environments brings increased performance, the automation of the process becomes more and more challenging. The use of complex workflow management systems has been a viable solution for this automation process. In this thesis, we study a broad range of workflow management tools and compare their capabilities especially in terms of dynamic and conditional structures they support, which are crucial for the automation of complex applications. We then apply some of these …

Go to article

Design And Testing Of An Infrared Temperature System To Test The Effects Of Chemical Stimulation On Heat Production In Cell Cultures, Nicholas Gerbo Jan 2008

Design And Testing Of An Infrared Temperature System To Test The Effects Of Chemical Stimulation On Heat Production In Cell Cultures, Nicholas Gerbo

LSU Master's Theses

Temperature is an important physiological parameter of cell biology. The thermal energy output of cells in vitro can offer insight into cellular processes. Standard methodology of measuring cellular thermal output has been through microcalorimetry. In this work, infrared thermography is presented as an alternative to microcalorimetry and other measurement techniques. An enclosure that controls the temperature of cells and allows for injection of temperature control of chemical agents and subsequent measurement of cell temperature using an infrared camera has been designed and tested. The enclosure was tested with 3T3-L1 adipocytes treated with the β3 adrenergic agonist CL 316-243 for up …

Go to article

Design And Realization Of An Electrophoretron Cycler, Celine Raymonde Ramet Jan 2008

Design And Realization Of An Electrophoretron Cycler, Celine Raymonde Ramet

LSU Master's Theses

Polymerase Chain Reaction (PCR) is a powerful enzymatic reaction commonly used to amplify specific sequences of Deoxyribo Nucleic Acid (DNA). Since the introduction of the lab on a chip concept, numerous Continuous Flow PCR cyclers were realized with success at the micro scale. As reducing the reactor size and improving thermal management led to reduced sample volumes, results could be achieved much faster with these CF-PCR cyclers than with common commercial cycler. Furthermore, most of these demonstrated CF-PCRs are nowadays evolving towards high-throughput systems. However, most CF-PCR cyclers require complex manipulations and are not flexible (e.g. fixed number of cycles, …

Go to article

Airlift Assisted Wastewater Treatment, Brian Sidney Johnson Jan 2008

Airlift Assisted Wastewater Treatment, Brian Sidney Johnson

LSU Master's Theses

Static low density media (SLDM) filtration has been received with great admiration in the aquaculture industry and consequently spawned into the domestic wastewater setting on the pilot scale. This method of granular filtration uses plastic beads to facilitate the roles of both clarification and biofiltration into one compact unit. The fundamental operating principles utilized in this form of treatment can be greatly enhanced when they are coupled with self contained recirculation from airlift pumps. Recirculation of this type in a SLDM unit has the ability to provide multiple passes of the substrate in the wastewater through the bead bed to …

Go to article

Characterizing The Epidemiology Of Bluetongue Virus Serotype One In South Louisiana, Michael Edward Becker Jan 2008

Characterizing The Epidemiology Of Bluetongue Virus Serotype One In South Louisiana, Michael Edward Becker

LSU Master's Theses

In November 2004, bluetongue virus (BTV) serotype 1 was detected for the first time in the U.S. from a hunter-killed deer in the marsh area of the Atchafalaya Delta in St. Mary Parish, LA. Subsequent serum surveys of three cattle farms further inland from the area where the deer was shot found bluetongue virus serotype 1 positive cattle on two of the three farms. The purpose of this study was to determine potential BTV vectors in the area where BTV-1 positive animals were detected and compare different trapping techniques for capturing specimens of the genus Culicoides. The study was conducted …

Go to article

The Effect Of An Inshore Artificial Reef On The Community Structure And Feeding Ecology Of Estuarine Fishes In Barataria Bay, Louisiana, Kirsten A. Simonsen Jan 2008

The Effect Of An Inshore Artificial Reef On The Community Structure And Feeding Ecology Of Estuarine Fishes In Barataria Bay, Louisiana, Kirsten A. Simonsen

LSU Master's Theses

Recently we have begun to understand the importance of inshore hard-bottom substrate, including oyster reefs, to estuarine fish communities in the Gulf of Mexico, especially in the context of identifying Essential Fish Habitat (EFH). However, problems such as habitat loss, disease, overharvest, and failure to replace shell have severely decreased the amount of high-relief oyster reef habitat available to finfish. The purpose of this project was to establish an artificial high-relief mimic-oyster reef in Barataria Bay, Louisiana, and monitor its use by economically and ecologically important finfish, including spotted seatrout (Cynoscion nebulosus) and Atlantic croaker (Micropogonias undulatus). The finfish and …

Go to article

Pilot-Scale Study On Anaerobic Digestion Applied To A Saline Industrial Waste Activated Sludge, Changjiang Shen Jan 2008

Pilot-Scale Study On Anaerobic Digestion Applied To A Saline Industrial Waste Activated Sludge, Changjiang Shen

LSU Master's Theses

In the field of municipal wastewater treatment, anaerobic digestion is a well-established, effective process for stabilization of organic sludge with the attractive features of low operating costs and production of methane as a useful by-product. Application of anaerobic digestion for the treatment of saline industrial wastewater sludge, however, has not been well established. The studies described in this thesis were conducted with the overall goal of assessing the feasibility of mesophilic anaerobic digestion processes for treatment of waste activated sludge (WAS) containing moderate salinity (approximately 3% m/v). Experiments employed two 30-gallon conical-bottom HDPE reactors. In the first phase of testing, …

Go to article

The Influence Of Calf Selenium Status On Gpx-1 And 3 Activity And Liver Gpx-1 Mrna, Genevieve Elizabeth Tanner Jan 2008

The Influence Of Calf Selenium Status On Gpx-1 And 3 Activity And Liver Gpx-1 Mrna, Genevieve Elizabeth Tanner

LSU Master's Theses

The purpose of this research was to determine the influence of dietary Se on glutathione peroxidase (GPx)-1 and 3 activities and relative liver GPx mRNA levels in growing Holstein bull calves. Calves (n = 14) were started 28 d after birth on either a Se adequate (0.15 ppm Se) or deficient (0.01 ppm Se) diet consisting of 3 growth phases and maintained on the diet until 180 d of age. Blood samples were taken from each calf for determination of GPx-1 and GPx-3 activity. Three calves were euthanized at d 21 of age for determination of baseline liver GPx-1 mRNA …

Go to article

Effects Of Probiotics And Yeast Culture On Rumen Development And Growth Of Dairy Calves, Jennifer Marie Laborde Jan 2008

Effects Of Probiotics And Yeast Culture On Rumen Development And Growth Of Dairy Calves, Jennifer Marie Laborde

LSU Master's Theses

Forty-eight calves (heifers n=20, bulls n=28) were randomly assigned one of four dietary treatments which included no additive (C); the yeast culture Saccharomyces cerevisiae (YC); the probiotics Bacillus lichenformis and Bacillus subtilis (P); and both yeast culture and probiotics (YCP). Calves were administered treatments from day 2 to 56 in starter and from day 57 to 84 in grower diets. Body weights were measured at birth and weekly thereafter until day 112 of age. Wither and hip heights were measured weekly. Feed intake, water intake, and fecal scores were recorded twice daily until day 56. Rumen fluid was collected on …

Go to article

Factors Potentially Influencing The Abundance Of Mosquitoes In Louisiana Rice Fields, Ana Maria Sanchez De Cuadra Jan 2008

Factors Potentially Influencing The Abundance Of Mosquitoes In Louisiana Rice Fields, Ana Maria Sanchez De Cuadra

LSU Master's Theses

The rice stink bug (Oebalus pugnax) is the major pest of late-season rice in Louisiana. Prior studies indicate that large populations of mosquitoes are often present in rice fields during the time that rice fields are infested with rice stink bugs. Lambda-cyhalothrin (Karate®) is widely used to control rice stink bugs. The purpose of this study was to determine if application of the insecticide Karate® at a rate of 0.033 kg/ha, for rice stink bug control had an effect on the population of mosquitoes in rice fields. This effect was assessed by monitoring natural populations of mosquitoes before and after …

Go to article

Land Alive!, Or Metamorphosis In The Sportsman's Paradise, Adam Tourek Jan 2008

Land Alive!, Or Metamorphosis In The Sportsman's Paradise, Adam Tourek

LSU Master's Theses

"Land Alive!" is best described a multimedia work. The produce of travels to the area of the Mississippi River delta, along with text-based research, formed the materials from which two evenings of participative performance were crafted. Personal narratives were used alongside evaluations of administrative programs, and the space in the Backyard Gallery was transformed using shovels, buckets, and teamwork. Found chairs, rope, and other objects, through ritualized interaction, became an aesthetic formation; everyone present worked together in the assembly of a boat, which contained the results of these interactions between myself, six volunteers, and an audience turned participants. The evenings …

Go to article

Comparisons Of Bacterial Community Within The Abdomens Of Formosan Subterranean Termites, Fresh- And Alcohol-Stored, From Their Native (China) And Introduced (U.S.) Range, Huei-Yang Ho Jan 2008

Comparisons Of Bacterial Community Within The Abdomens Of Formosan Subterranean Termites, Fresh- And Alcohol-Stored, From Their Native (China) And Introduced (U.S.) Range, Huei-Yang Ho

LSU Master's Theses

The Formosan subterranean termite (FST), a pest species native to China and introduced to the U.S., is obligatorily dependent on its gut microbiota. Using high-throughput 16S rRNA gene sequencing, the effects of long-term alcohol storage and geographic location on the bacteria composition of the FST colonies were investigated. Initial studies found the use of amplified ribosomal DNA restriction analysis (ARDRA) to be unpractical due to its higher costs compared to the direct sequencing of 16S rRNA gene sequences. Using nine FST colonies consisting of fresh and alcohol-stored Lousiana FST colonies and alcohol-stored China FST colonies, 237 bacteria ribotypes were identified …

Go to article

Can We Estimate Stature From The Scapula? A Test Considering Sex And Ancestry, Rachel Marie Burke Jan 2008

Can We Estimate Stature From The Scapula? A Test Considering Sex And Ancestry, Rachel Marie Burke

LSU Master's Theses

The biological profile is one of the most important things that forensic anthropologists accomplish in their work. This includes the determination of age, race, sex, and stature. These four components of the biological profile aid in the identification of an individual in the forensic context. Since the beginning of the field of physical anthropology, osteologists and anatomists have studied human remains in order to provide new and more accurate ways of building the biological profile. Two published studies have attempted to estimate stature from measurements of the scapula. One previous study found that certain measurements of the scapula were highly …

Go to article

Hatchability Of Post-Peak Egg Production Broiler Breeder Eggs As Influenced By Pre-Incubation Warming, Cameron Benjamin Wiggins Ii Jan 2008

Hatchability Of Post-Peak Egg Production Broiler Breeder Eggs As Influenced By Pre-Incubation Warming, Cameron Benjamin Wiggins Ii

LSU Master's Theses

This research was conducted to determine the effects of pre-incubation warming on the hatchability of post-peak egg production broiler breeder eggs. An experiment with six trials was conducted with 7,920 freshly laid eggs from Ross 308 and 708 broiler breeders from 61-67-wks of age. For each trial, 1,320 eggs were used to determine if pre-incubation warming treatments of 0, 2, 4, and 6, or 0, 3, 6, and 9, or 0, 9, 12 and 15 hrs (at 37.6°C) could improve the hatchability of eggs stored (at 15.5°C) for three days. After a storage period of three days, the eggs were …

Go to article

Iron And Zinc Physiology In Sweetpotato, Mary Catherine Singleton Jan 2008

Iron And Zinc Physiology In Sweetpotato, Mary Catherine Singleton

LSU Master's Theses

Sweetpotato [Ipomoea batatas (L.) Lam.] is an important provider of nutrition in developing countries. High productivity in the form of starch and beta carotene richness underlies its potential. A sweetpotato with adequate levels of iron and zinc would greatly aid efforts to reduce dietary deficiencies of iron and zinc. The objective of this work is to document the physiological accumulation of iron and zinc in sweetpotato during development and the mechanisms responsible for iron uptake. Six varieties (‘IPS 163, ‘Beauregard’,‘Koto-puki’, ‘Pung-mi’, ‘Duanyanghon’, and ‘Xushu 18’) were compared to understand iron and zinc accumulation during development. Results showed that micronutrient content …

Go to article

Drift, Emily Jane Cook Jan 2008

Drift, Emily Jane Cook

LSU Master's Theses

Drift is a movement by, or as if by, a current of air or water . It can mean the depositing of debris by such a current. It can also connote a veering off from a projected path. What interests me about the word is that it suggests a slight loss of control, but not a devastating one. Most importantly, for this body of work, it implies a passive movement, a transition in which one is not able to control every part. We can perhaps choose the river we get into but not the direction of its flow. Using properties …

Go to article

Molecular Determinants Of Kaposi's Sarcoma-Associated Herpesvirus Tumorigenicity, Haixia Kong Jan 2008

Molecular Determinants Of Kaposi's Sarcoma-Associated Herpesvirus Tumorigenicity, Haixia Kong

LSU Master's Theses

A conditional silencing system using anti-gB siRNAs was devised to investigate the structure and function of the KSHV gB. Transient co-transfection of plasmids constitutively expressing gB and anti-gB siRNAs in 293 cells substantially inhibited gB mRNA levels and protein production. Similarly, transient expression of siRNAs into the basal cavity-based lymphoma cells (BCBL-1) caused substantial reduction of gB transcription and protein synthesis. TaqMan real-time PCR and infectivity assays showed that gB was essential for virion egress and infectivity. Transfection of a codon-optimized gB not recognized by the anti-gB siRNAs, efficiently rescued virion egress and infectivity in BCBL-1 cells in the presence …

Go to article

Impact Damage Between The Collision Of A Vessel And Protective Fender Systems, Paul Joseph Kocke Jan 2008

Impact Damage Between The Collision Of A Vessel And Protective Fender Systems, Paul Joseph Kocke

LSU Master's Theses

Vessel collision with bridge pilings can cause a catastrophic event and are occurring at an alarming rate. Such events can lead to the collapse of a bridge, causing deaths, shutting down a primary route of transportation and costing millions of dollars in repairs. Today, the AASHTO Bridge Code gives designers a methodology toward designing bridge pilings to withstand the impact of an errant vessel. However, bridges designed before this code was written require a protective system that is capable of redirecting a colliding vessel without causing severe damage to the pilings or the vessel. This research will look into three …

Go to article

First Prev Next Last