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Automated Scanning Probe Lithography With N-Alkanethiol Self-Assembled Monolayers On Au(111): Application For Teaching Undergraduate Laboratories, Treva T. Brown, Zorabel M. Lejeune, Kai Liu, Sean Hardin, Jie Ren Li, Kresimir Rupnik, Jayne C. Garno Jan 2011

Automated Scanning Probe Lithography With N-Alkanethiol Self-Assembled Monolayers On Au(111): Application For Teaching Undergraduate Laboratories, Treva T. Brown, Zorabel M. Lejeune, Kai Liu, Sean Hardin, Jie Ren Li, Kresimir Rupnik, Jayne C. Garno

Faculty Publications

Controllers for scanning probe instruments can be programmed for automated lithography to generate desired surface arrangements of nanopatterns of organic thin films, such as n-alkanethiol self-assembled monolayers (SAMs). In this report, atomic force microscopy (AFM) methods of lithography known as nanoshaving and nano-grafting are used to write nanopatterns within organic thin films. Commercial instruments provide software to control the length, direction, speed, and applied force of the scanning motion of the tip. For nanoshaving, higher forces are applied to an AFM tip to selectively remove regions of the matrix monolayer, exposing bare areas of the gold substrate. Nanografting is accomplished …

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Oncogenic Potential Of Yin Yang 1 Mediated Through Control Of Imprinted Genes, Michelle M. Thiaville, Joomyeong Kim Jan 2011

Oncogenic Potential Of Yin Yang 1 Mediated Through Control Of Imprinted Genes, Michelle M. Thiaville, Joomyeong Kim

Faculty Publications

The transcription factor Yin Yang (YY) 1 is one of the most evolutionarily well-conserved DNA binding proteins that is ubiquitously expressed among different tissue types. YY1 functions as a critical regulator for a diverse set of genes, making its role in the cancerous environment elusive. Recent studies have demonstrated that clusters of YY1 binding sites are overrepresented in imprinted gene loci. These clustered binding sites may function as a molecular rheostat with respect to YY1 protein levels. YY1 levels were documented to be altered in various tumor tissues in conjunction with the transcriptional levels of the imprinted genes it regulates. …

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The Large Decapitating Fly Pseudacteon Litoralis (Diptera: Phoridae): Successfully Established On Fire Ant Populations In Alabama, Sanford D. Porter, L. C. Graham, Seth J. Johnson, Larry G. Thead, Juan A. Briano Jan 2011

The Large Decapitating Fly Pseudacteon Litoralis (Diptera: Phoridae): Successfully Established On Fire Ant Populations In Alabama, Sanford D. Porter, L. C. Graham, Seth J. Johnson, Larry G. Thead, Juan A. Briano

Faculty Publications

The large fire ant decapitating fly, Pseudacteon litoralis Borgmeier, from northeastern Argentina was successfully released as a self-sustaining biocontrol agent of imported fire ants in south central Alabama in 2005. Five years later, this fly is firmly established at the original release site and has expanded outward at least 18 km. Nevertheless, populations remain very low considering P. litoralis is one of the most abundant fire ant decapitating flies in large areas of its range in South America. The reasons for low densities and why we were only able to establish this fly at 1 of 9 release sites in …

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Components, Volume 7 (2011), Lsu Center For Computation & Technology Jan 2011

Components, Volume 7 (2011), Lsu Center For Computation & Technology

Components

No abstract provided.

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Five Blood Pressure Loci Identified By An Updated Genome-Wide Linkage Scan: Meta-Analysis Of The Family Blood Pressure Program, Jeannette Simino, Gang Shi, Rezart Kume, Karen Schwander, Michael A. Province, C. Charles Gu, Sharon Kardia, Aravinda Chakravarti, Georg Ehret, Richard A. Olshen, Stephen T. Turner, Low Tone Ho, Xiaofeng Zhu, Cashell Jaquish, Dina Paltoo, Richard S. Cooper, Alan Weder, J. David Curb, Eric Boerwinkle, Steven C. Hunt, Dabeeru C. Rao Jan 2011

Five Blood Pressure Loci Identified By An Updated Genome-Wide Linkage Scan: Meta-Analysis Of The Family Blood Pressure Program, Jeannette Simino, Gang Shi, Rezart Kume, Karen Schwander, Michael A. Province, C. Charles Gu, Sharon Kardia, Aravinda Chakravarti, Georg Ehret, Richard A. Olshen, Stephen T. Turner, Low Tone Ho, Xiaofeng Zhu, Cashell Jaquish, Dina Paltoo, Richard S. Cooper, Alan Weder, J. David Curb, Eric Boerwinkle, Steven C. Hunt, Dabeeru C. Rao

Faculty Publications

Background A preliminary genome-wide linkage analysis of blood pressure in the Family Blood Pressure Program (FBPP) was reported previously. We harnessed the power and ethnic diversity of the final pooled FBPP dataset to identify novel loci for blood pressure thereby enhancing localization of genes containing less common variants with large effects on blood pressure levels and hypertension.MethodsWe performed one overall and 4 race-specific meta-analyses of genome-wide blood pressure linkage scans using data on 4,226 African-American, 2,154 Asian, 4,229 Caucasian, and 2,435 Mexican-American participants (total N = 13,044). Variance components models were fit to measured (raw) blood pressure levels and two …

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Reverse Causation And Illness-Related Weight Loss In Observational Studies Of Body Weight And Mortality, Katherine M. Flegal, Barry I. Graubard, David F. Williamson, Richard S. Cooper Jan 2011

Reverse Causation And Illness-Related Weight Loss In Observational Studies Of Body Weight And Mortality, Katherine M. Flegal, Barry I. Graubard, David F. Williamson, Richard S. Cooper

Faculty Publications

In studies of weight and mortality, the construct of reverse causation has come to be used to imply that the exposure-outcome relation is biased by weight loss due to preexisting illness. Observed weight-mortality associations are sometimes thought to result from this bias. Evidence for the occurrence of such bias is weak and inconsistent, suggesting that either the analytical methods used have been inadequate or else illness-related weight loss is not an important source of bias. Deleting participants has been the most frequent approach to control possible bias. As implemented, this can lead to deletion of almost 90% of all deaths …

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Source Reduction Behavior As An Independent Measurement Of The Impact Of A Public Health Education Campaign In An Integrated Vector Management Program For The Asian Tiger Mosquito, Kristen Bartlett-Healy, George Hamilton, Sean Healy, Taryn Crepeau, Isik Unlu, Ary Farajollahi, Dina Fonseca, Randy Gaugler, Gary G. Clark, Daniel Strickman Jan 2011

Source Reduction Behavior As An Independent Measurement Of The Impact Of A Public Health Education Campaign In An Integrated Vector Management Program For The Asian Tiger Mosquito, Kristen Bartlett-Healy, George Hamilton, Sean Healy, Taryn Crepeau, Isik Unlu, Ary Farajollahi, Dina Fonseca, Randy Gaugler, Gary G. Clark, Daniel Strickman

Faculty Publications

The goal of this study was to evaluate the effectiveness of a public health educational campaign to reduce backyard mosquito-larval habitats. Three communities each, within two New Jersey counties, were randomly selected to receive: (1) both education and mosquito control, (2) education only, and (3) no education or mosquito control. Four separate educational events included a 5-day elementary school curriculum in the spring, and three door to door distributions of educational brochures. Before and after each educational event, the numbers of mosquito-larval container habitats were counted in 50 randomly selected homes per study area. Container surveys allowed us to measure …

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On The Origin Of Stories: Evolution, Cognition, And Fiction, Hope Hollocher, Agustín Fuentes, Charles H. Pence, Grant Ramsey, Daniel John Sportiello, Michelle M. Wirth Jan 2011

On The Origin Of Stories: Evolution, Cognition, And Fiction, Hope Hollocher, Agustín Fuentes, Charles H. Pence, Grant Ramsey, Daniel John Sportiello, Michelle M. Wirth

Faculty Publications

No abstract provided.

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“Describing Our Whole Experience”: The Statistical Philosophies Of W.F.R. Weldon And Karl Pearson, Charles H. Pence Jan 2011

“Describing Our Whole Experience”: The Statistical Philosophies Of W.F.R. Weldon And Karl Pearson, Charles H. Pence

Faculty Publications

There are two motivations commonly ascribed to historical actors for taking up statistics: to reduce complicated data to a mean value (e.g., Quetelet), and to take account of diversity (e.g., Galton). Different motivations will, it is assumed, lead to different methodological decisions in the practice of the statistical sciences. Karl Pearson and W. F. R. Weldon are generally seen as following directly in Galton’s footsteps. I argue for two related theses in light of this standard interpretation, based on a reading of several sources in which Weldon, independently of Pearson, reflects on his own motivations. First, while Pearson does approach …

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Nietzsche’S Aesthetic Critique Of Darwin, Charles H. Pence Jan 2011

Nietzsche’S Aesthetic Critique Of Darwin, Charles H. Pence

Faculty Publications

Despite his position as one of the first philosophers to write in the “post- Darwinian” world, the critique of Darwin by Friedrich Nietzsche is often ignored for a host of unsatisfactory reasons. I argue that Nietzsche’s critique of Darwin is important to the study of both Nietzsche’s and Darwin’s impact on philosophy. Further, I show that the central claims of Nietzsche’s critique have been broadly misunderstood. I then present a new reading of Nietzsche’s core criticism of Darwin. An important part of Nietzsche’s response can best be understood as an aesthetic critique of Darwin, reacting to what he saw as …

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Influence Of Cortisol On The Attachment And Metamorphosis Of Larval Utterbackia Imbecillis On Bluegill Sunfish (Lepomis Macrochirus), Benjamin Dubansky, Brian Whitaker, Fernando Galvez Jan 2011

Influence Of Cortisol On The Attachment And Metamorphosis Of Larval Utterbackia Imbecillis On Bluegill Sunfish (Lepomis Macrochirus), Benjamin Dubansky, Brian Whitaker, Fernando Galvez

Faculty Publications

The larvae of unionid freshwater mussels (i.e., glochidia) undergo a parasitic stage requiring their attachment to the external epithelia of fish hosts, where they metamorphose into free-living juveniles. We describe the physiological effects in bluegill sunfish (Lepomis macrochirus) of infection with glochidia from the paper pondshell (Utterbackia imbecillis). Glochidia accumulation on bluegill increased dramatically at concentrations of 2000 glochidia liter-1 and above, reaching a maximum attachment density of about 30 glochidia g-1 fish at 4000 glochidia liter-1. Plasma cortisol was the most sensitive indicator of biological effect to glochidial exposure, increasing significantly in hosts exposed to 2000 glochidia liter-1 or …

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"Attended By A Whole Nation" The Americas In The Female American, Julia Kark Callander Jan 2011

"Attended By A Whole Nation" The Americas In The Female American, Julia Kark Callander

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

No abstract provided.

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Book Reviews Jan 2011

Book Reviews

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

No abstract provided.

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Outlook For Development Of High-Throughput Cryopreservation For Small-Bodied Biomedical Model Fishes, Terrence R. Tiersch, Huiping Yang, E. Hu Jan 2011

Outlook For Development Of High-Throughput Cryopreservation For Small-Bodied Biomedical Model Fishes, Terrence R. Tiersch, Huiping Yang, E. Hu

Faculty Publications

With the development of genomic research technologies, comparative genome studies among vertebrate species are becoming commonplace for human biomedical research. Fish offer unlimited versatility for biomedical research. Extensive studies are done using these fish models, yielding tens of thousands of specific strains and lines, and the number is increasing every day. Thus, high-throughput sperm cryopreservation is urgently needed to preserve these genetic resources. Although high-throughput processing has been widely applied for sperm cryopreservation in livestock for decades, application in biomedical model fishes is still in the concept-development stage because of the limited sample volumes and the biological characteristics of fish …

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Sperm Quality Assessments For Endangered Razorback Suckers Xyrauchen Texanus, Jill A. Jenkins, Bruce E. Eilts, Amy M. Guitreau, Chester R. Figiel, Rassa O. Draugelis-Dale, Terrence R. Tiersch Jan 2011

Sperm Quality Assessments For Endangered Razorback Suckers Xyrauchen Texanus, Jill A. Jenkins, Bruce E. Eilts, Amy M. Guitreau, Chester R. Figiel, Rassa O. Draugelis-Dale, Terrence R. Tiersch

Faculty Publications

Flow cytometry (FCM) and computer-assisted sperm motion analysis (CASA) methods were developed and validated for use with endangered razorback suckers Xyrauchen texanus collected (nZ64) during the 2006 spawning season. Sperm motility could be activated within osmolality ranges noted during milt collections (here 167-343 mOsm/kg). We hypothesized that sperm quality of milt collected into isoosmotic (302 mOsm/kg) or hyperosmotic (500 mOsm/kg) Hanks' balanced salt solution would not differ. Pre-freeze viabilities were similar between osmolalities (79%G6 (S.E.M.) and 76%G7); however, post-thaw values were greater in hyperosmotic buffer (27%G3 and 12%G2; PZ0.0065), as was mitochondrial membrane potential (33%G4 and 13%G2; PZ0.0048). Visual estimates …

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Smoking Behavior And Alcohol Consumption In Individuals With Panic Attacks, Amanda R. Mathew, Peter J. Norton, Michael J. Zvolensky, Julia D. Buckner, Jasper A.J. Smits Jan 2011

Smoking Behavior And Alcohol Consumption In Individuals With Panic Attacks, Amanda R. Mathew, Peter J. Norton, Michael J. Zvolensky, Julia D. Buckner, Jasper A.J. Smits

Faculty Publications

Individuals with anxiety often report greater smoking and drinking behaviors relative to those without a history of anxiety. In particular, smoking and alcohol use have been directly implicated among individuals experiencing panic attacks, diagnosed with panic disorder, or high on panic-relevant risk factors such as anxiety sensitivity. Less is known, however, about specific features of panic that may differentiate among those who do or do not use cigarettes or alcohol. The purpose of the current study was to replicate previous research findings of an association between panic symptomatology, cigarette smoking, and alcohol consumption, as well as extend findings by examining …

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Habitat Use Does Not Reflect Habitat Quality For Henslow's Sparrows (Ammodramus Henslowii) Wintering In Fire-Managed Longleaf Pine Savannas, Erik I. Johnson, Jennifer K. Dimiceli, Philip C. Stouffer, Matthew E. Brooks Jan 2011

Habitat Use Does Not Reflect Habitat Quality For Henslow's Sparrows (Ammodramus Henslowii) Wintering In Fire-Managed Longleaf Pine Savannas, Erik I. Johnson, Jennifer K. Dimiceli, Philip C. Stouffer, Matthew E. Brooks

Faculty Publications

Interpreting habitat quality requires an understanding of the consequences of habitat use because bird density alone may not reflect habitat quality. Although habitat use can be readily quantified, subsequent effects remain elusive for most species, especially for migrants on the wintering grounds. Wintering Henslow's Sparrow (Ammodramus henslowii) densities in Longleaf Pine (Pinus palustris) savannas are fire-dependent, with highest bird densities in the first winter after a fire, but reduced density in subsequent winters without fire. We determined habitat characteristics associated with variation in bird density in the first and second winters following fire and then followed birds' diet, condition, and …

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Diversification Of An Endemic Southeast Asian Genus: Phylogenetic Relationships Of The Spiderhunters (Nectariniidae: Arachnothera), Robert G. Moyle, Sabrina S. Taylor, Carl H. Oliveros, Haw Chuan Lim, Cheryl L. Haines, Mustafa A. Rahman, Frederick H. Sheldon Jan 2011

Diversification Of An Endemic Southeast Asian Genus: Phylogenetic Relationships Of The Spiderhunters (Nectariniidae: Arachnothera), Robert G. Moyle, Sabrina S. Taylor, Carl H. Oliveros, Haw Chuan Lim, Cheryl L. Haines, Mustafa A. Rahman, Frederick H. Sheldon

Faculty Publications

The phylogeny of spiderhunters (Nectariniidae: Arachnothera) was reconstructed by comparing mitochondrial and nuclear DNA sequences of all currently recognized species and with broad geographic sampling of two particularly variable species complexes, the Little Spiderhunter (Arachnothera longirostra) and the streaky spiderhunters (A. modesta and A. affinis). It appears to be a relatively old group, whose diversification was not caused by recent sea-level changes. However, the modern, highly sympatric distribution of the large species in the Sunda lowlands was probably a result of dispersal via recent land bridges. Within the highly variable A. longirostra group, there are substantially diverged taxa in the …

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Raft Formation By The Red Imported Fire Ant, Solenopsis Invicta, Benjamin J. Adams, Linda M. Hooper-Bùi, Rachel M. Strecker, Daniel M. O'Brien Jan 2011

Raft Formation By The Red Imported Fire Ant, Solenopsis Invicta, Benjamin J. Adams, Linda M. Hooper-Bùi, Rachel M. Strecker, Daniel M. O'Brien

Faculty Publications

Abstract The raft behavior of the invasive red imported fire ant, Solenopsis invicta Buren (Hymenoptera: Formicidae), has been documented for over a century. However, no rigorous tests have been performed elucidating the structure, limits, and important characteristics of this behavior. Rafting makes S. invicta competitive in both native and foreign environments. Further understanding of this behavior will provide critical advancement to the comprehension of this ant's global invasion ecology. Though speculations exist, no one has looked at the movements of individuals within the raft formation, the longevity of rafts, raft success rate, or the importance of different life stages and …

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Coupling In Vitro And In Vivo Paradigm Reveals A Dose Dependent Inhibition Of Angiogenesis Followed By Initiation Of Autophagy By C6-Ceramide, Rishipal R. Bansode, Mohamed Ahmedna, Kurt R. Svoboda, Jack N. Losso Jan 2011

Coupling In Vitro And In Vivo Paradigm Reveals A Dose Dependent Inhibition Of Angiogenesis Followed By Initiation Of Autophagy By C6-Ceramide, Rishipal R. Bansode, Mohamed Ahmedna, Kurt R. Svoboda, Jack N. Losso

Faculty Publications

The activity of N-hexanoyl-D-erythro-sphingosine, a C6-ceramide against angiogenesis was tested in vitro and in vivo. The effect of ceramide in inhibiting MCF-7 cancer cells was also determined. The aim of this study was to potentiate the effect of ceramide as an-ti-angiogenic compound that can regulate tumor induced angiogenesis. C6-ceramide inhibited vascular endothelial growth factor (VEGF)-induced human um-bilical vein endothelial cells (HUVEC) tube formation in a dose-dependent manner within 24 hours. Ceramide at concentrations between 12.5 and 25 μM inhibited the via-bility of MCF-7 cells and reduced VEGF-induced cell migration in 24 hours. At 50 μM, ceramide induced MCF-7 cell death …

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Spatio-Temporal Analysis Of Crime Hotspots By Trajectories And Self-Organizing Maps, Marco Helbich, Julian Hagenauer, Michael Leitner Jan 2011

Spatio-Temporal Analysis Of Crime Hotspots By Trajectories And Self-Organizing Maps, Marco Helbich, Julian Hagenauer, Michael Leitner

Faculty Publications

The exploration of spatial relationships between crime incidents, the socio-economic characteristics of neighborhoods, as well as physical and structural compositions of the urban landscape is an ongoing research issue in Geographic Information Science. Spatial data mining tools improve the ability to gain knowledge from geographic data and help to understand spatio-temporal processes that contribute to the presence or absence of criminal offenses. However, most of the currently available tools focus either on the spatial, the temporal, or a combination of both aspects. But crime has a spatial and temporal component in a multidimensional attribute space. Therefore, it is reasonable to …

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Emotion And Rhetoric In Bioshock, Jason Liban Rose Jan 2011

Emotion And Rhetoric In Bioshock, Jason Liban Rose

LSU Master's Theses

In this paper, I tie four concepts together to form a defense both of videogames as art, and of rhetoric as a value-neutral tool of expression, that can be both positive and useful for society. (1) In the first chapter, I explain the Platonic view of rhetoric as an “empty knack” and how it differs from other accounts of rhetoric, ancient and modern. (2) In the second chapter I present a nuanced understanding of the role emotion plays in practical moral reasoning under a computational model of the mind, as described by Antonio Damasio’s neurological somatic marker theory in Descartes’ …

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Contextual Influences On Faith Development In Adolescents And Emerging Adults, Katheryn A. Barker Jan 2011

Contextual Influences On Faith Development In Adolescents And Emerging Adults, Katheryn A. Barker

LSU Master's Theses

Recent research has revealed that high religiosity is associated with positive life outcomes in adolescents and emerging adults. However, the mechanisms and processes that underscore faith development, which is crucial to experiencing these outcomes, are not well understood. Furthermore, most research on faith development in adolescents and emerging adults is based on quantitative data and fails to examine the influence of developmental contexts on faith development. To address this, a racially diverse New England sample of 30 highly religious Christian, Jewish, New World faiths, and Muslim families were interviewed regarding their faith and family life. Focusing specifically on the faith …

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Simulation Of Cell Seeding And Retention In A Disordered Polymeric Scaffold, Tejaswini Narayana Jan 2011

Simulation Of Cell Seeding And Retention In A Disordered Polymeric Scaffold, Tejaswini Narayana

LSU Master's Theses

Historically, bone repair has been performed using materials like metals, ceramics, cements and bioactive glass. The major problem with all these materials is that they do not perform the necessary non-structural functions of bone. Engineered tissue, created by growing bone cells on porous biodegradable material (scaffold), will address this issue with current bone repair techniques. Improving engineered tissue treatments requires a thorough understanding of factors affecting cell seeding and proliferation inside a disordered porous material which is not feasible using current experimental techniques. A model for particle transport in a disordered porous material that can predict the particle deposition pattern …

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Integrated Weather Sensor Platform And Decision Support System For Improved Sweet Potato Production, Jose Pablo Rojas Jimenez Jan 2011

Integrated Weather Sensor Platform And Decision Support System For Improved Sweet Potato Production, Jose Pablo Rojas Jimenez

LSU Master's Theses

Water management represents an essential component in all agricultural activities, where significant improvements can be achieved through the implementation of field measuring devices and irrigation scheduling models. The methods that integrate these tools may be based on information regarding the soil, crop, and weather. Evapotranspiration (ET) is one of the most important components of the soil water-balance used in modeling. A number of estimation methods have been developed to determine Reference Evapotranspiration (ETo) under various types of weather conditions. In this research, an analysis was conducted between different ETo estimation methods and ETo calculated from soil water content measurements and …

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Characterization And Utilization Of Rice Defense Associated With Partial Resistance To Bacterial Panicle Blight: An Emerging Rice Disease Problem In The Southeastern United States, Bishnu Kumar Shrestha Jan 2011

Characterization And Utilization Of Rice Defense Associated With Partial Resistance To Bacterial Panicle Blight: An Emerging Rice Disease Problem In The Southeastern United States, Bishnu Kumar Shrestha

LSU Master's Theses

Rice is a staple food for much of the world’s growing population. Rice production is limited by a number of abiotic and biotic factors. These factors have direct effects on food security because less food is available to growing population. Bacterial panicle blight (BPB), caused by the bacterium Burkholderia glumae, is an emerging disease that causes grain rot, panicle discoloration, and unfilled grains in rice. Up to 70% of yield reduction has been reported in severely infected rice fields. No completely resistant rice cultivars have been identified, however, a medium-grain cultivar, Jupiter, showed a high level of partial resistance …

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Investigations Of Wave-Induced Turbulent Structures In Vegetated Flows, Agnimitro Chakrabarti Jan 2011

Investigations Of Wave-Induced Turbulent Structures In Vegetated Flows, Agnimitro Chakrabarti

LSU Master's Theses

The role of coastal vegetation in mitigating shoreline erosion by damping of incoming waves and the resultant effect on sediment transport is a critical area of coastal management research. However our understanding of the underlying hydrodynamic processes is limited. Laboratory flume experiments were conducted where a naturally grown emergent vegetation channel and a vegetation-less sand channel were exposed to regular waves. Wave height data was collected using wave gauges located at various points along the channel in the direction of oncoming waves. Acoustic Doppler Velocimeters (ADVs) placed at various depths in the water column measured wave orbital velocity signatures. This …

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The Expression Of Cardiotrophin-1 Is Differentially Regulated In Murine And Human Obesity Type Ii Diabetes, Kelesha Crystal Sarjeant Jan 2011

The Expression Of Cardiotrophin-1 Is Differentially Regulated In Murine And Human Obesity Type Ii Diabetes, Kelesha Crystal Sarjeant

LSU Master's Theses

Cardiovascular disease is the leading cause of mortality in all developed nations. Several independent studies have shown that cardiotrophin-1 (CT-1) serum levels are modulated in patients with various types of cardiovascular disease including ischemic heart disease, valvular heart disease, and accelerated arthrosclerosis. CT-1 is a member of the Interleukin-6 family, or gp130 family of cytokines. It is also known to induce cardiomyocyte hypertrophy in vitro and in vivo, and is a critical component for cardiomyocyte survival. CT-1 is a naturally occurring protein with a molecular mass of approximately 21.5 kD and a 200 amino acid long sequence, it was discovered …

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Influence Of Sand Topdressing On Bermudagrass Thatch Decomposition, Dustin S. Parker Jan 2011

Influence Of Sand Topdressing On Bermudagrass Thatch Decomposition, Dustin S. Parker

LSU Master's Theses

Methods to control thatch layers in mature turfgrasses have relied on sand-topdressing and/or mechanical removal. Mechanical removal of thatch through vertical mowing and aerification is effective but disruptive to playing surfaces compared to sand topdressing. As a result, many turf managers have opted to implement sand-topdressing regiments as their primary method for reducing thatch buildup. This research was conducted to 1) determine the effect of cultivar on thatch decomposition and 2) examine the effect of sand topdressing on thatch microenvironment and decomposition. Sand topdressing treatments consisting of sterilized or non-sterilized sand applied at 0.4 cm 14 d-1 or as a …

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Anti-Microbial Self-Assembling "Click" Monolayers Utilizing Silver Nanoparticles For Indwelling Medical Devices, Emily Ann Hodges Jan 2011

Anti-Microbial Self-Assembling "Click" Monolayers Utilizing Silver Nanoparticles For Indwelling Medical Devices, Emily Ann Hodges

LSU Master's Theses

The objective of this study was to synthesize and characterize antimicrobial, silver nanoparticles based self-assembling monolayer coatings, for use on chronic indwelling medical devices. The coatings are comprised of novel biomass mediated silver nano particles (SNP) that are biocompatible, highly concentrated, highly pure, cost-effective, polydispersed and compatible for use with existing chronic indwelling medical devices. The HPC SNPs were functionalized with an azide functional group and covalently bound to titanium substrates via ¨Dclick¡¬ chemistry.

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