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Life History And Demography Of Trillium Ovatum Pursh. (Liliaceae)In Western Montana, Tarn Ream

Graduate Student Theses, Dissertations, & Professional Papers

Trillium ovatum is a long-lived, spring ephemeral that grows in moist forest habitats of the western United States. Extensive investigations of Trillium, including T. ovatum, have been accomplished, yet no prior studies of T. ovatum have been conducted at the eastern edge of its distribution in Montana, where populations experience increased aridity and highly variable climatic conditions as compared to other regions where it occurs. This study examines life-history characteristics and demography of T. ovatum in three representative populations that were sampled over 9 growing seasons to determine: 1) life history stages, stage class structure, and yearly transitions among stage …

Unnatural Resource Law: Situating Desalination In Coastal Resource And Water Law Doctrines, Michael Pappas

Publications

This Article offers the first legal analysis of desalination, the process of converting saltwater into freshwater. Desalination represents a key climate change adaptation measure because the United States has exploited nearly all of its freshwater resources, freshwater demands continue to grow, and climate change threatens to diminish significantly existing freshwater supplies. However, scholarship has yet to address the legal ambiguities that desalination raises in the context of property, water law, and coastal resource doctrines.

This Article addresses these ambiguities and suggests the legal adaptations necessary to accommodate desalination as a climate change adaptation. Under current legal doctrines, the chain of …

Overcoming Babel’S Curse: Adapting The Doctrine Of Foreign Equivalents, Jonathan Skinner

Publications

No abstract provided.

Experimental Analysis Of Tools Used For Estimating Risk Associated With Industrial Machines, Yuvin Chinniah, François Gauthier, Serge Lambert, Florence Moulet

Rapports de recherche scientifique

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Dans cette étude, 31 outils qualitatifs servant à estimer le risque en lien avec les machines industrielles et conformes aux directives de l'ISO 14121-1:2007 ont été analysés i) en comparant leurs paramètres d'estimation du risque, et ii) en utilisant les différents outils pour estimer les risques inhérents à 20 situations dangereuses (scénarios de risque). L'étude visait à procéder à une comparaison théorique de la capacité des outils à estimer le risque et à déterminer la mesure dans laquelle ils estiment le risque de façon uniforme. Les niveaux de risque obtenus par …

Enquête Québécoise Sur Des Conditions De Travail, D'Emploi Et De Sst (Eqcotesst) : Sommaire, Michel Vézina, Esther Cloutier, Susan Stock, Katherine Lippel, Éric Fortin, Alain Delisle, Marie St-Vincent, Amélie Funes, Patrice Duguay, Samuel Vézina, Pascale Prud'homme

Rapports de recherche scientifique

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Le ministère du Travail doit réaliser tous les cinq ans une étude sur l'évolution des conditions de travail au Québec. À cette fin, il a mandaté, en 2007, l’Institut de recherche Robert-Sauvé en santé et en sécurité du travail (IRSST), l’Institut national de santé publique du Québec (INSPQ), l’Institut de la statistique du Québec (ISQ), le ministère du Travail, le ministère de la Santé et des Services sociaux et la Commission des normes du travail (CNT) d’effectuer l’Enquête québécoise sur des conditions de travail, d’emploi, et de santé et de sécurité …

Québec Survey On Working And Employment Conditions And Occupational Health And Safety (Eqcotesst): Summary, Michel Vézina, Esther Cloutier, Susan Stock, Katherine Lippel, Éric Fortin, Alain Delisle, Marie St-Vincent, Amélie Funes, Patrice Duguay, Samuel Vézina, Pascale Prud'homme

Rapports de recherche scientifique

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Le ministère du Travail doit réaliser tous les cinq ans une étude sur l'évolution des conditions de travail au Québec. À cette fin, il a mandaté, en 2007, l’Institut de recherche Robert-Sauvé en santé et en sécurité du travail (IRSST), l’Institut national de santé publique du Québec (INSPQ), l’Institut de la statistique du Québec (ISQ), le ministère du Travail, le ministère de la Santé et des Services sociaux et la Commission des normes du travail (CNT) d’effectuer l’Enquête québécoise sur des conditions de travail, d’emploi, et de santé et de sécurité …

Securitizing Gender: Identity, Biometrics, And Transgender Bodies At The Airport, Paisley Currah, Tara Mulqueen

Publications and Research

It is widely assumed that the more information surveillance apparatuses can collect about an individual, the less risk she poses. In this article, we examine how gender figures into and potentially disrupts the link between identity and security. Our analysis centers on one very particular event: the confusion that erupts at the airport when US Transportation Security Administration agents perceive a conflict between the gender marked on one's papers, the image of one's body produced by a machine, and/or an individual's perceived gender presentation. Gender has been so deeply naturalized—as immutable, as easily apprehended, and as existing before and outside …

The Effect Of Optional Summer Transition To High School Program Participation And Required School Year Long Placement On A Core Content Team On Ninth-Grade Students At-Risk Measured Achievement, Engagement, And Behavior Outcomes, Frances K. Pokorski

Student Work

No significant difference in beginning ninth-grade pretest compared to ending ninth-grade posttest comparisons of American History t (17) = 0.34, p = .37 (one-tailed), d = 0.09, English t (17) = 1.40, p = .09 (one-tailed), d = 0.34, and Biology (t (17) = -1.58, p = .07 (one-tailed), d = -0.22, course grade scores were observed for students at-risk who accepted optional summer transition to high school program participation and completed the required school year long placement on a core content team. Students at-risk who refused optional summer transition to high school program participation but completed the required …

Photochemical Reaction Products Of Polycyclic Aromatic Hydrocarbons Adsorbed At An Air-Water Interface, Franz Stefan Ehrenhauser

LSU Doctoral Dissertations

Polycyclic aromatic hydrocarbons (PAH) are ubiquitous pollutants resulting from incomplete combustion and hence normally unavoidable. The kinetic aspects of the environmental degradation process have received considerable attention; however, not much is known about the degradation products themselves. Aqueous solutions of naphthalene, acenaphthene, 9H-fluorene, phenanthrene and pyrene were subjected to UVB light in a bulk-phase and a thin-film reactor to assess the identity of the formed photodegradation products. To aide in the challenging analysis of these mixtures, a novel analytical technique based on high performance liquid chromatography (HPLC) coupled to UV diode-array detection and dopant-assisted atmospheric pressure photoionization mass …

Oceanic Light Absorption Properties: Assessment And Characterization In The Southeastern Bering Sea Using Field And Satellite Observations, Puneeta Suresh Naik

LSU Doctoral Dissertations

In recent decades the Bering Sea has been subjected to large climatic variability with cascading consequences on its productive marine ecosystem. Long-term as well as short-term monitoring is essential if we are to maintain its capability to supply the resources on which the national and local economy depend. Remote sensing together with in-situ and laboratory measurements of physical, biological and optical properties have considerable potential for monitoring and measuring the effects of climate-driven changes on this ecosystem. A major shortcoming to obtain accurate estimates of optically active components (such as colored dissolved organic matter, non-algal particulate matter, and phytoplankton) from …

Algebra Readiness Outcomes Of Sixth-Grade Boys And Girls Placed In Challenge Math Based On Measured Math Ability Compared To Sixth-Grade Boys And Girls Placed In Challenge Math Based On Teachers' Recommendations, David C. Hemphill

Student Work

The first pretest-posttest hypothesis was tested using the dependent t test. Null hypotheses for test score improvement over time were rejected for the end of fifth-grade pretest compared to ending sixth-grade posttest math Essential Learner Outcome scores converted to standard scores for randomly selected sixth-grade girls meeting measured test score criteria for challenge math placement ( n = 15): pretest M = 120.07, SD = 4.32; posttest M = 121.87, SD = 2.17; t (14) = 1.73, p = .05 (one-tailed), d = 0.500 and rejected for randomly selected sixth-grade girls not meeting measured test score criteria for challenge math …

Synthesis, Linda H. Pardo, Linda H. Geiser, Mark E. Fenn, Charles T. Driscoll, Christine L. Goodale, Edith B. Allen, Jill S. Baron, Roland Bobbink, William D. Bowman, Christopher M. Clark, Bridget Emmett, Frank S. Gilliam, Tara Greaver, Sharon J. Hall, Erik A. Lilleskov, Lingli Liu, Jason A. Lynch, Knute Nadelhoffer, Steven S. Perakis, Molly J. Robin-Abbott, John L. Stoddard, Kathleen C. Weathers

Biological Sciences Faculty Research

Human activity in the last century has led to a substantial increase in nitrogen (N) emissions and deposition. This N deposition has reached a level that has caused or is likely to cause alterations to the structure and function of many ecosystems across the United States. One approach for quantifying the level of pollution that would be harmful to ecosystems is the critical loads approach. The critical load is dei ned as the level of a pollutant below which no detrimental ecological effect occurs over the long term according to present knowledge.

The objective of this project was to synthesize …

Nitrogen Addition Shapes Soil Phosphorus Availability In Two Reforested Tropical Forests In Southern China, Xiankai Lu, Jiangming Mo, Frank S. Gilliam, Hua Fang, Feifei Zhu, Yunting Fang, Wei Zhang, Juan Huang

Biological Sciences Faculty Research

Scant information is available on how soil phosphorus (P) availability responds to atmospheric nitrogen (N) deposition, especially in the tropical zones. This study examined the effect of N addition on soil P availability, and compared this effect between forest sites of contrasting land-use history. Effects of N addition on soil properties, litterfall production, P release from decomposing litter, and soil P availability were studied in a disturbed (reforested pine forest with previous understory vegetation and litter harvesting) and a rehabilitated (reforested mixed pine/broadleaf forest with no understory vegetation and litter harvesting) tropical forest in southern China. Experimental N-treatments (above ambient) …

Genetic Diversity In Proteolytic Enzymes And Amino Acid Metabolism Among Lactobacillushelveticus Strains, Jeff Broadbent, H. Cai, R. L. Larsen, J. E. Hughes, D. L. Welker, V. G. De Carvalho, T. A. Tompkins, Y. Ardo, F. Vogensen, A. Delorentiis, M. Gatti, E. Neviani, J. L. Steele

Nutrition, Dietetics, and Food Sciences Faculty Publications

Lactobacillus helveticus CNRZ 32 is recognized for its ability to decrease bitterness and accelerate flavor development in cheese, and has also been shown to release bioactive peptides in milk. Similar capabilities have been documented in other strains of Lb. helveticus, but the ability of different strains to affect these characteristics can vary widely. Because these attributes are associated with enzymes involved in proteolysis or AA catabolism, we performed comparative genome hybridizations to a CNRZ 32 microarray to explore the distribution of genes encoding such enzymes across a bank of 38 Lb. helveticus strains, including 2 archival samples of CNRZ 32. …

Travailleurs Exposés Aux Fluides De Coupe De Métaux (Fc) : Évaluation De L'Exposition Aux Bioaérosols Et Effets Sur La Santé Respiratoire Et Cutanée, Caroline Duchaine, Yvon Cormier, Yan Gilbert, Marc Veillette, Jacques Lavoie, Anne Mériaux, Christine Touzel, Denis Sasseville, Yves Poulin

Rapports de recherche scientifique

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Certains problèmes respiratoires sont observés chez les machinistes travaillant avec des fluides de coupe solubles (FC). Ces problèmes pourraient être reliés aux aérosols contenant des microorganismes présents dans les systèmes de FC. Pour mieux comprendre les effets de ces aérosols sur la santé humaine, l’environnement de travail doit être caractérisé. Nous avons détaillé la flore microbienne des FC ainsi que celle de l’air, les brouillards d’huile, les poussières inhalables et les endotoxines de 44 sites d’usinage répartis dans 25 usines du Québec. La PCR quantitative a été utilisée afin de dénombrer …

Exploratory Study To Identify Workload Factors That Have An Impact On Health And Safety: A Case Study In The Service Sector, Pierre-Sébastien Fournier, Sylvie Montreuil, Jean-Pierre Brun, Caroline Bilodeau, Julie Villa

Rapports de recherche scientifique

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Les nouvelles formes d’organisation du travail (innovations technologiques, nouvelles politiques de gestion des ressources humaines, formes innovantes d’organisation, etc.) pourraient avoir des conséquences négatives pour les individus (fatigue, stress chronique, troubles musculo-squelettiques…) et pour les établissements (absentéisme, roulement de personnel…). La documentation scientifique désigne la charge de travail comme dénominateur commun en l’occurrence, sauf que les évidences sur la conceptualisation de ce phénomène sont limitées et ne tiennent pas compte de sa complexité. Pour le définir et le caractériser, les chercheurs ont voulu déterminer les dimensions ainsi que la dynamique et …

Impact Of Metallic Nanoparticles On Photoinduced Fluorescence Enhancement Of Colloidal Quantum Dots, Ali Nejat

Theses

No abstract provided.

Invertebrate Drift In Estill Fork, Jackson County, Alabama, Brittany Holmes

Theses

No abstract provided.

Heuristics Modeling Optimization-Oriented Element Behaviors In Discrete, Repulsive Systems, David Barber

Theses

No abstract provided.

The Impact Of Irrigation On Nutrient Export From Agricultural Fields, Walter Lee Ellenburg Ii

Theses

No abstract provided.

Sensory Discrimination Testing With Children, Karen Melissa Garcia

LSU Doctoral Dissertations

Literature concerning children’s performance in sensory discrimination methods is not as extensively published as performance with adults. Therefore, in this dissertation children’s performance in discrimination methods was investigated. First, performance in the triangle and 3-AFC methods was explored with children 6 to 12 years old. The paradox of discriminatory non-discriminators states that the proportion of correct responses in the 3-AFC method will be higher than that of the triangle. However, Thurstonian theory predicts that despite the difference in proportions of correct responses the degree of difference between the stimuli will be similar. The paradox and the Thurstonian predictions were challenged …

Digital Technology And The Variation In Design Routines: A Sequence Analysis Of Four Design Processes, James Gaskin, B. Veeresh Thummadi, Kalle Lyytinen, Youngjin Yoo

Faculty Publications

We advance a theory of design process variation across organizational types and the effects of digitalization on these processes. We argue that design routines are subject to greater variation within and between organizations as organizations embed increasingly rich repertoires of digital capabilities in their design activities. Using a sequence analysis method we compare design process variation in four organizations to examine how design routines vary due to differences in embedded digital capabilities and organization of the design process. Our analysis reveals new insights on the effects organizational context and digitalization have on design routine composition.

Comparison Of Different Integral Histogram Based Tracking Algorithms, Sriharsha Atluri

LSU Master's Theses

Object tracking is an important subject in computer vision with a wide range of applications – security and surveillance, motion-based recognition, driver assistance systems, and human-computer interaction. The proliferation of high-powered computers, the availability of high quality and inexpensive video cameras, and the increasing need for automated video analysis have generated a great deal of interest in object tracking algorithms. Tracking is usually performed in the context of high-level applications that require the location and/or shape of the object in every frame. Research is being conducted in the development of object tracking algorithms over decades and a number of approaches …

Hydrodynamic Focusing Micropump Module With Pdms/Nickel-Particle Composite Diaphragms For Microfluidic Systems, Jeonghwan Kim

LSU Master's Theses

In this research, a rapid prototype of multi-fluidic speed-modulating (MFSM) micropump which enables modulation of hydrodynamic focusing in micro-fluidic flow has been designed, fabricated, and characterized. The size of the entire module is 33 mm x 25 mm x 8 mm and comprises of three MFSM micropumps to achieve hydrodynamic focusing. These pumps are simultaneously operated by the same actuation source. Each micropump consists of Tesla-type valves in the bottom layer and PDMS/Ni-particle composite (PNPC) diaphragm in the middle layer. The deflection of the diaphragm is obtained by the external pneumatic force, and the permanent magnet controls the displacement resulting …

Expression, Identification, And Bioactivity Of Recombinant Human Erythropoietin From Lmh/2a (Leghorn Male Hepatoma)Cell Line, Amanda Cecile Broussard

LSU Master's Theses

Erythropoietin (EPO) is the main cytokine regulator for red blood-cell production in the human by binding to erythropoietin receptors to promote erythroid proliferation, survival and differentiation. Administration of recombinant human EPO (rhEPO) as a therapeutic has been shown to improve renal and non-renal anemia and this success has led to a high medical global demand. Chinese hamster ovary (CHO) cells, yeast, and bacteria have been used to produce rhEPO but nevertheless there is still a need for a low-cost and high quality expression system for rhEPO. LMH/2A cells, as an alternative model, were transfected with the codon optimized human EPO …

Integrated Modular Microfluidic System For Forensic Alu Dna Typing, Samuel Kimani Njoroge

LSU Doctoral Dissertations

Driven by the numerous applications of genome-related research, fully integrated microfluidic systems have been developed that have advanced the capabilities of molecular and, in particular, genetic analyses. A brief overview on integrated microfluidic systems for DNA analysis is given in Chapter 1 followed by a report on micro-capillary electrophoresis (µCE) of Alu elements with laser-induced fluorescence (LIF) detection, in which the monomorphic Alu insertions on the X and Y chromosomes were utilized to detect male DNA in large female DNA background (Y: X = 1:19) without cell sorting prior to the determination. The polymorphic Alu loci with known restricted geographical …

Selective Translocation Of Cell-Impermeable Toxins Into Cancer Cells: Phlip Mediated Delivery Of Phallotoxins Inhibits Cancer Proliferation, Dayanjali Diluka Wijesinghe

Open Access Dissertations

Most drug molecules cannot freely diffuse across a cellular membrane because of the energetic barrier for transition across a hydrophobic lipid bilayer of a membrane is very high for polar molecules. Recently it was discovered that a moderately hydrophobic, water-soluble membrane peptide called pHLIP (pH (Low) Insertion Peptide) can insert into membranes and translocate molecules in a pH-dependent manner. This opens a unique opportunity to develop a novel concept in drug delivery, which is based on the use of a pH-sensitive single peptide molecular transporter. The main goal of this investigation is to elucidate mechanism of cargo translocation across a …

Acoustic Emission Detection In Carbon Composite Materials Using Fiber Bragg Grating Optical Sensors, Nehemiah J. Mabry

Theses

No abstract provided.

Purification And Phytotoxic Analysis Of Ceratoplatanin Proteins In Botrytis Cinerea, Subodh Rathi

Theses

No abstract provided.

The Inefficiencies And Deficiencies Of Waste Coal, Jonathan Skinner, Michael Brown

Publications

No abstract provided.