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Articles 3241 - 3270 of 13623
Full-Text Articles in Entire DC Network
Đổi Mới Diy: Tactical Ruralism And Tangible Modeling In The Mekong Delta, Phillip Fernberg
Đổi Mới Diy: Tactical Ruralism And Tangible Modeling In The Mekong Delta, Phillip Fernberg
LSU Master's Theses
In recent years, the integrity of the Mekong Delta has been put at risk by a combination of environmental and institutional factors. Understanding that the degradation of the Delta would have far-reaching socioeconomic implications for both Vietnam and the Indochinese Peninsula, The World Bank has responded to the situation by implementing initiatives for climate-smart planning tools and improved water management practices throughout the lower Mekong basin. Seeing the potential for tangible modeling as a participatory planning tool, the Bank has hired a team of consultants from Louisiana State University to introduce a methodology called Tangible Landscape to its climate resilience …
In Search Of National Identity: Portraits Of Motherless Women In Clarín And Galdós, Leslie I. Quezada
In Search Of National Identity: Portraits Of Motherless Women In Clarín And Galdós, Leslie I. Quezada
LSU Master's Theses
Drawing on novels by Leopoldo Alas Clarín and Benito Pérez Galdós, I will examine the portraits of women in La Regenta (1885), Tristana (1892), andLa de San Quintín (1894). By exploring how women in the works are reflected in terms of identity and nature of their role from a male-authored perspective, I will study how different aspects influence the development of their character, as well as the issues they face when searching for their identity. Galdós and Clarín unravel the women to embody the nation of Spain and the conditions it was going through before the …
Linking Water Quality To Aedes Aegypti And Zika In Flood-Prone Neighborhoods, Rebeca De Jesus Crespo
Linking Water Quality To Aedes Aegypti And Zika In Flood-Prone Neighborhoods, Rebeca De Jesus Crespo
Faculty Publications
No abstract provided.
Plasticity, Technicity, Writing, Deborah Goldgaber
Plasticity, Technicity, Writing, Deborah Goldgaber
Faculty Publications
No abstract provided.
Intraspecific Variation In A Dominant Prey Species Can Bias Marine Predator Dietary Estimates Derived From Stable Isotope Analysis, Michael J. Polito, Wayne Z. Trivelpiece, Christian S. Reiss, Susan G. Trivelpiece, Jefferson T. Hinke, William P. Patterson, Steven D. Emslie
Intraspecific Variation In A Dominant Prey Species Can Bias Marine Predator Dietary Estimates Derived From Stable Isotope Analysis, Michael J. Polito, Wayne Z. Trivelpiece, Christian S. Reiss, Susan G. Trivelpiece, Jefferson T. Hinke, William P. Patterson, Steven D. Emslie
Faculty Publications
No abstract provided.
A 5‑Lipoxygenase-Specific Sequence Motif Impedes Enzyme Activity And Confers Dependence On A Partner Protein, Erin E. Schexnaydre, Jana Gerstmeier, Ulrike Garscha, Paul M. Jordan, Oliver Werz, Marcia E. Newcomer
A 5‑Lipoxygenase-Specific Sequence Motif Impedes Enzyme Activity And Confers Dependence On A Partner Protein, Erin E. Schexnaydre, Jana Gerstmeier, Ulrike Garscha, Paul M. Jordan, Oliver Werz, Marcia E. Newcomer
Faculty Publications
© 2018 Elsevier B.V. Leukotrienes (LT) are lipid mediators of the inflammatory response that play key roles in diseases such as asthma and atherosclerosis. The precursor leukotriene A 4 (LTA 4 ) is synthesized from arachidonic acid (AA) by 5‑lipoxygenase (5-LOX), a membrane-associated enzyme, with the help of 5‑lipoxygenase-activating protein (FLAP), a nuclear transmembrane protein. In lipoxygenases the main chain carboxylate of the C-terminus is a ligand for the non-heme iron and thus part of the catalytic center. We investigated the role of a lysine-rich sequence (KKK 653–655 ) 20 amino acids upstream of the C-terminus unique to 5-LOX that …
Rapid Plant Diversification In The Andes Does Not Require Flowers, Laura P. Lagomarsino
Rapid Plant Diversification In The Andes Does Not Require Flowers, Laura P. Lagomarsino
Faculty Publications
No abstract provided.
Amplification Dynamics Of Platy-1 Retrotransposons In The Cebidae Platyrrhine Lineage, Jessica M. Storer, Jackson R. Mierl, Sarah A. Brantley, Breanna Threeton, Yahor Sukharutski, Lydia C. Rewerts, Corey P. St Romain, Madeline M. Foreman, Jasmine N. Baker, Jerilyn A. Walker, Joseph D. Orkin, Amanda D. Melin, Kimberley A. Phillips, Miriam K. Konkel, Mark A. Batzer
Amplification Dynamics Of Platy-1 Retrotransposons In The Cebidae Platyrrhine Lineage, Jessica M. Storer, Jackson R. Mierl, Sarah A. Brantley, Breanna Threeton, Yahor Sukharutski, Lydia C. Rewerts, Corey P. St Romain, Madeline M. Foreman, Jasmine N. Baker, Jerilyn A. Walker, Joseph D. Orkin, Amanda D. Melin, Kimberley A. Phillips, Miriam K. Konkel, Mark A. Batzer
Faculty Publications
© 2019 The Author(s). Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. Platy-1 elements are Platyrrhine-specific, short interspersed elements originally discovered in the Callithrix jacchus (common marmoset) genome. To date,only themarmoset genomehas been analyzed for Platy-1 repeat content.Here,we report full-length Platy-1 insertions in other NewWorld monkey (NWM) genomes (Saimiri boliviensis, squirrel monkey; Cebus imitator, capuchin monkey; and Aotus nancymaae, owl monkey) and analyze the amplification dynamics of lineage-specific Platy-1 insertions. A relatively small number of full-length and lineage-specific Platy-1 elements were found in the squirrel, capuchin, and owl monkey genomes compared with the …
Genomic, Ecological, And Morphological Approaches To Investigating Species Limits: A Case Study In Modern Taxonomy From Tropical Eastern Pacific Surgeonfishes, Prosanta Chakrabarty
Genomic, Ecological, And Morphological Approaches To Investigating Species Limits: A Case Study In Modern Taxonomy From Tropical Eastern Pacific Surgeonfishes, Prosanta Chakrabarty
Faculty Publications
A wide variety of species are distinguished by slight color variations. However, molecular analyses have repeatedly demonstrated that coloration does not always correspond to distinct evolutionary histories between closely related groups, suggesting that this trait is labile and can be misleading for species identification. In the present study, we analyze the evolutionary history of sister species of Prionurus surgeonfishes in the Tropical Eastern Pacific (TEP), which are distinguished by the presence or absence of dark spots on their body. We examined the species limits in this system using comparative specimen-based approaches, a mitochondrial gene (COI), more than 800 nuclear loci …
Influence Of Sorghum Cultivar, Phenological Stage, And Fertilization On Development And Reproduction Of Melanaphis Sacchari (Hemiptera: Aphididae), Blake E. Wilson, Jeffrey Davis, Thomas Reagan, Luna Lama
Influence Of Sorghum Cultivar, Phenological Stage, And Fertilization On Development And Reproduction Of Melanaphis Sacchari (Hemiptera: Aphididae), Blake E. Wilson, Jeffrey Davis, Thomas Reagan, Luna Lama
Faculty Publications
The sugarcane aphid, Melanaphis sacchari (Zehntner) (Hemiptera: Aphididae), is an invasive pest of grain sorghum, Sorghum bicolor (L) Moench (Poaceae). Since its first outbreak in sorghum in 2013, severe infestations have spread throughout the southern USA, causing major economic losses. Whereas insecticide applications can mitigate some of the pest's impacts, a sustainable ecology-based management program is needed to reduce reliance on chemical control. Two greenhouse assays examined the influence of selected host plant characteristics on M. sacchari life table parameters. We studied the effects of silicon (rates equivalent to 0 and 3,360 kg silicon per ha) and nitrogen (rates equivalent …
Hemipteran Pests Of Sugarcane In North America, Blake E. Wilson
Hemipteran Pests Of Sugarcane In North America, Blake E. Wilson
Faculty Publications
ing-sucking herbivores (Insecta: Hemiptera) represent one of the greatest threats to agricultural production worldwide. Hemipteran pests directly injure plants as well as vector disease-causing plant pathogens. Production of sugarcane (Saccharum spp.) in North America is impacted by a complex of Hemiptera including the sugarcane aphid, Melanaphis sacchari Zehntner (Aphididae); yellow sugarcane aphid, Sipha flava (Forbes) (Aphididae); West Indian canefly, Saccharosydne saccharivora (Westwood) (Delphacidae); sugarcane delphacid, Perkinsiella saccharicida Kirkaldy (Delphacidae); and sugarcane lace bug, Leptodictya tabida (Herric-Schaeffer) (Tingidae). None of these pests is consistently damaging to large amounts of sugarcane acreage, but regional outbreaks are common. The biology, ecology, and pest …
Temperature-Dependent Development And Host Range Of Crapemyrtle Bark Scale, Acanthococcus Lagerstroemiae (Kuwana) (Hemiptera: Eriococcidae), Zinan Wang, Yan Chen, Rodrigo Diaz
Temperature-Dependent Development And Host Range Of Crapemyrtle Bark Scale, Acanthococcus Lagerstroemiae (Kuwana) (Hemiptera: Eriococcidae), Zinan Wang, Yan Chen, Rodrigo Diaz
Faculty Publications
© 2019 Florida Entomological Society. All rights reserved. The crapemyrtle bark scale, Acanthococcus lagerstroemiae (Kuwana) (Hemiptera: Eriococcidae), is an invasive pest of crapemyrtles, Lagerstroemia spp. L. (Lythraceae) in the southeastern USA. Information about its temperature-dependent development and host range is limited. The objectives of this study were to evaluate the effects of temperature on the immature development of A. lagerstroemiae, and to determine plant species suitable for immature development and reproduction. Developmental time and survival of eggs were evaluated at 7 constant temperatures from 17.5 to 32 °C, and of nymphs at 20, 25, and 30 °C. Results suggested that …
Fifty Shades Of Brown: Macroevolution Of Plumage Brightness In The Furnariida, A Large Clade Of Drab Neotropical Passerines, Rafael S. Marcondes, Robb T. Brumfield
Fifty Shades Of Brown: Macroevolution Of Plumage Brightness In The Furnariida, A Large Clade Of Drab Neotropical Passerines, Rafael S. Marcondes, Robb T. Brumfield
Faculty Publications
© 2019 The Author(s). Evolution © 2019 The Society for the Study of Evolution. Both natural and sexual selection are thought to affect the evolution of bird color. Most studies of the topic have focused on sexually dichromatic taxa and showy plumages, which are expected to be more influenced by social selection and usually result in increased conspicuousness. However, many bird clades display dull brown or gray plumages that vary greatly in brightness (lightness), but little in hue (shade). Here, we examine the macroevolution of brightness in one such clade, the Furnariida. We make comparisons across light environments, body parts, …
Louisiana Agriculture Spring, 2019
Proximal Tubular Cell–Specific Ablation Of Carnitine Acetyltransferase Causes Tubular Disease And Secondary Glomerulosclerosis, Claudia Kruger, Trang Tiffany Nguyen, Chelsea Breaux, Alana Guillory, Margaret Mangelli, Kevin T. Fridianto, Jean Paul Kovalik, David H. Burk, Robert C. Noland, Randall Mynatt, Krisztian Stadler
Proximal Tubular Cell–Specific Ablation Of Carnitine Acetyltransferase Causes Tubular Disease And Secondary Glomerulosclerosis, Claudia Kruger, Trang Tiffany Nguyen, Chelsea Breaux, Alana Guillory, Margaret Mangelli, Kevin T. Fridianto, Jean Paul Kovalik, David H. Burk, Robert C. Noland, Randall Mynatt, Krisztian Stadler
Faculty Publications
© 2019 by the American Diabetes Association. Proximal tubular epithelial cells are highly energy demanding. Their energy need is covered mostly from mitochondrial fatty acid oxidation. Whether derailments in fatty acid metabolism and mitochondrial dysfunction are forerunners of tubular damage has been suggested but is not entirely clear. Here we modeled mitochondrial overload by creating mice lacking the enzyme carnitine acetyltransferase (CrAT) in the proximal tubules, thus limiting a primary mechanism to export carbons under conditions of substrate excess. Mice developed tubular disease and, interestingly, secondary glomerulosclerosis. This was accompanied by increased levels of apoptosis regulator and fibrosis markers, increased …
Long-Term Effects Of The Chronic Administration Of Risperidone On Adolescent Mice, Serena Nguyen
Long-Term Effects Of The Chronic Administration Of Risperidone On Adolescent Mice, Serena Nguyen
Honors Capstones
No abstract provided.
Physiological Plasticity And Tolerance To Aquatic Hypoxia In Fundulid Killifish, Ryan Hoffman
Physiological Plasticity And Tolerance To Aquatic Hypoxia In Fundulid Killifish, Ryan Hoffman
Honors Capstones
No abstract provided.
Changes In The Oxidation State Of The Photosystem Ii Manganese Cluster Have Structural Effects On The Manganese-Stabilizing Protein That Increase Its Susceptibility To Degradation By Trypsin, Hunter Jon Lambert
Honors Capstones
No abstract provided.
A History Of Drag And The Aids Crisis In Louisiana, Rebecca Lawler
A History Of Drag And The Aids Crisis In Louisiana, Rebecca Lawler
Honors Capstones
No abstract provided.
Implementation Of A Particle Image Velocimetry System For Evaluation Of Microfluidic Chip Flows, Sheila Mallenahalli
Implementation Of A Particle Image Velocimetry System For Evaluation Of Microfluidic Chip Flows, Sheila Mallenahalli
Honors Capstones
No abstract provided.
Spring 2019 Catalog, Lsu Press
Material Analysis Of A Tympanostomy Myringotomy Simulator, Abishek Stanley
Material Analysis Of A Tympanostomy Myringotomy Simulator, Abishek Stanley
Honors Capstones
No abstract provided.
Salt Marsh Restoration In Louisiana: An Analysis Of Litter Decomposition, Joseph Winston
Salt Marsh Restoration In Louisiana: An Analysis Of Litter Decomposition, Joseph Winston
Honors Capstones
No abstract provided.
Characterization Of Iron-Sulfur Cluster Proteins From Methanococcus Maripaludis, Melody Salmanian
Characterization Of Iron-Sulfur Cluster Proteins From Methanococcus Maripaludis, Melody Salmanian
Honors Capstones
No abstract provided.
Hierarchal Control Of Magnetic Metal Oxide Nanoparticles, Hunter Simonson
Hierarchal Control Of Magnetic Metal Oxide Nanoparticles, Hunter Simonson
Honors Capstones
No abstract provided.
Amplification Dynamics Of Platy-1 Retrotransposons In The Cebidae Platyrrhine Lineage, Mark A. Batzer, Jessica M. Storer, Jackson R. Mierl, Sarah A. Brantley
Amplification Dynamics Of Platy-1 Retrotransposons In The Cebidae Platyrrhine Lineage, Mark A. Batzer, Jessica M. Storer, Jackson R. Mierl, Sarah A. Brantley
Faculty Publications
Platy-1 elements are Platyrrhine-specific, short interspersed elements originally discovered in the Callithrix jacchus (common marmoset) genome. To date, only the marmoset genome has been analyzed for Platy-1 repeat content. Here, we report full-length Platy-1 insertions in other New World monkey (NWM) genomes (Saimiri boliviensis, squirrel monkey; Cebus imitator, capuchin monkey; and Aotus nancymaae, owl monkey) and analyze the amplification dynamics of lineage-specific Platy-1 insertions. A relatively small number of full-length and lineage-specific Platy-1 elements were found in the squirrel, capuchin, and owl monkey genomes compared with the marmoset genome. In addition, only a few older Platy-1 subfamilies were recovered in …
Differentiation Of Surface Water And Groundwater In A Karst System Using Anthropogenic Signatures, Joe Honings
Differentiation Of Surface Water And Groundwater In A Karst System Using Anthropogenic Signatures, Joe Honings
Faculty Publications
Surface water-groundwater interaction within a karstic system enhances contaminant transport, making karst aquifers susceptible to anthropogenic practices. Contaminated waters related to agricultural and animal husbandry in northwestern Illinois (USA) prompted this investigation. Six streams and five springs were sampled for 16 parameters to assess anthropogenic influences. Statistical analyses revealed differences in 13 of 16 parameters between the stream and spring waters. Rock-water interaction was identified as the dominant mechanism defining the chemistry for both waters, which were classified as Ca-Mg HCO3. Elevated nitrate as nitrogen (NO3-N), chloride (Cl-), sodium, and potassium concentrations indicate that human activities have influenced the quality …
The Cure For Cultivating Fastidious Microbes, William Wischusen, Arundhati Bakshi, Austen T. Webber, Lorelei E. Patrick
The Cure For Cultivating Fastidious Microbes, William Wischusen, Arundhati Bakshi, Austen T. Webber, Lorelei E. Patrick
Faculty Publications
Course-Based Undergraduate Research Experiences (CUREs) expand the scientific educational benefits of research to large groups of students in a course setting. As part of an ongoing effort to integrate CUREs into first-year biology labs, we developed a microbiology CURE (mCURE) that uses a modified dilution-to-extinction high throughput culturing protocol for isolating abundant yet fastidious aquatic bacterioplankton during one semester. Students learn common molecular biology techniques like nucleic acid extraction, PCR, and molecular characterization; read and evaluate scientific literature; and receive training in scientific communication through written and oral exercises that incorporate social media elements. In the first three semesters, the …
Virulence-Driven Trade-Offs In Disease Transmission: A Meta-Analysis*, Miguel A. Acevedo, Forrest P. Dillemuth, Andrew J. Flick, Matthew J. Faldyn, Bret D. Elderd
Virulence-Driven Trade-Offs In Disease Transmission: A Meta-Analysis*, Miguel A. Acevedo, Forrest P. Dillemuth, Andrew J. Flick, Matthew J. Faldyn, Bret D. Elderd
Faculty Publications
© 2019 The Author(s). Evolution © 2019 The Society for the Study of Evolution. The virulence–transmission trade-off hypothesis proposed more than 30 years ago is the cornerstone in the study of host–parasite co-evolution. This hypothesis rests on the premise that virulence is an unavoidable and increasing cost because the parasite uses host resources to replicate. This cost associated with replication ultimately results in a deceleration in transmission rate because increasing within-host replication increases host mortality. Empirical tests of predictions of the hypothesis have found mixed support, which cast doubt about its overall generalizability. To quantitatively address this issue, we conducted …
Social Signals Detected By The Mechanosensory Lateral Line System Influence Reproductive Behavior And Neural Activation Patterns In An African Cichlid Fish, Chase Anselmo
Honors Capstones
No abstract provided.