Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (1691)
- Physical Sciences and Mathematics (1260)
- Social and Behavioral Sciences (790)
- Engineering (702)
- Chemistry (415)
-
- Arts and Humanities (370)
- Environmental Sciences (330)
- Biology (311)
- Oceanography and Atmospheric Sciences and Meteorology (264)
- Agriculture (260)
- Medicine and Health Sciences (260)
- Ecology and Evolutionary Biology (236)
- Psychology (226)
- Plant Sciences (212)
- Animal Sciences (192)
- Education (181)
- Civil and Environmental Engineering (175)
- Entomology (170)
- Genetics and Genomics (153)
- Veterinary Medicine (136)
- Chemical Engineering (130)
- Mechanical Engineering (116)
- Sociology (112)
- Population Biology (109)
- Earth Sciences (105)
- Biochemistry, Biophysics, and Structural Biology (95)
- Communication (87)
- Anthropology (83)
- Electrical and Computer Engineering (83)
- Oceanography (79)
- Keyword
-
- Biology (855)
- Agriculture (364)
- Chemistry (222)
- Education (182)
- Microbiology (135)
-
- Psychology (131)
- Zoology (131)
- Entomology (110)
- Botany (107)
- Louisiana (107)
- Engineering (106)
- Ecology (97)
- General (92)
- Obesity (87)
- Climate change (84)
- Genetics (79)
- Animal physiology (78)
- Biochemistry (69)
- Clinical (64)
- Agronomy (63)
- Molecular (61)
- Evolution (57)
- Phylogeny (57)
- Gulf of Mexico (55)
- Food science and technology (54)
- Inflammation (54)
- Literature (54)
- Rice (54)
- Biological control (52)
- Ecology; Biology (49)
- Publication Year
- Publication
-
- Faculty Publications (5097)
- LSU Doctoral Dissertations (2395)
- LSU Historical Dissertations and Theses (2274)
- LSU Master's Theses (2121)
- Honors Capstones (521)
-
- Division of Basic Science Faculty Publications (220)
- Clinical Research Faculty Publications (180)
- Louisiana Agriculture (129)
- Occasional Papers of the Museum of Natural Science, Louisiana State University (94)
- LSU Agricultural Experiment Station Reports (89)
- Population and Public Health Science Faculty Publications (83)
- LSU General Catalog (47)
- 1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era (41)
- Gumbo Yearbook (31)
- Distinguished Undergraduate Researcher Program (26)
- Civil War Book Review (25)
- LSU Faculty Senate Publications (25)
- Communications on Stochastic Analysis (20)
- Taboo: The Journal of Culture and Education (17)
- LSU AgCenter Bulletins (16)
- College of Science Patents (15)
- Research Matters & RNR Newsletters (14)
- 2026 LSU Symposium on Control, Learning, and Intelligent Systems (12)
- Research Magazine (12)
- Components (10)
- Publications (10)
- Student Senate Enrolled Legislation (9)
- College of Engineering Patents (8)
- Tête à Tête: Journal of Francophone Studies (8)
- Horticulture Hints (7)
- Publication Type
- File Type
Articles 4321 - 4350 of 13618
Full-Text Articles in Entire DC Network
Retention Of Stored Water Enables Tropical Tree Saplings To Survive Extreme Drought Conditions, Brett T. Wolfe
Retention Of Stored Water Enables Tropical Tree Saplings To Survive Extreme Drought Conditions, Brett T. Wolfe
Faculty Publications
Trees generally maintain a small safety margin between the stem water potential (stem) reached during seasonal droughts and the stem associated with their mortality. This pattern may indicate that species face similar mortality risk during extreme droughts. However, if tree species vary in their ability to regulate stem, then safety margins would poorly predict drought mortality. To explore variation among species in stem regulation, I subjected potted saplings of six tropical tree species to extreme drought and compared their responses with well-watered plants and pretreatment reference plants. In the drought treatment, soil water potential reached <-10 MPa, yet three species, Bursera simaruba (L.) Sarg., Cavanillesia platanifolia (Bonpl.) Kunth and Cedrela odorata L. had 100% survival and maintained stem near -1 MPa (i.e., desiccation-avoiding species). Three other species, Cojoba rufescens (Benth.) Britton and Rose, Genipa americana L. and Hymenaea courbaril L. had 50%, 0% and 25% survival, respectively, and survivors had stem <-6 MPa (i.e., desiccation-susceptible species). The desiccation-avoiding species had lower relative water content (RWC) in all organs and tissues (root, stem, bark and xylem) in the drought treatment than in the reference plants (means 72.0-90.4% vs 86.9-97.9%), but the survivors of the desiccation-susceptible C. rufescens had much lower RWC in the drought treatment (44.5-72.1%). Among the reference plants, the desiccation-avoiding species had lower tissue density, leaf-mass fraction and lateral-root surface area (LRA) than the desiccation-susceptible species. Additionally, C. platanifolia and C. odorata had reduced LRA in the drought treatment, which may slow water loss into dry soil. Together, these results suggest that the ability to regulate stem during extreme drought is associated with functional traits that favor retention of stored water and that safety margins during seasonal drought poorly predict survival during extreme drought.
Cryobanking Of Aquatic Species, Sonia Martínez-Páramo, Ákos Horváth, Catherine Labbé, Tiantian Zhang, Vanesa Robles, Paz Herráez, Marc Suquet, Serean Adams, Ana Viveiros, Terrence R. Tiersch, Elsa Cabrita
Cryobanking Of Aquatic Species, Sonia Martínez-Páramo, Ákos Horváth, Catherine Labbé, Tiantian Zhang, Vanesa Robles, Paz Herráez, Marc Suquet, Serean Adams, Ana Viveiros, Terrence R. Tiersch, Elsa Cabrita
Faculty Publications
This review is focused on the applications of genome cryobanking of aquatic species including freshwater and marine fish, as well as invertebrates. It also reviews the latest advances in cryobanking of model species, widely used by the scientific community worldwide, because of their applications in several fields. The state of the art of cryopreservation of different cellular types (sperm, oocytes, embryos, somatic cells and primordial germ cells or early spermatogonia) is discussed focusing on the advantages and disadvantages of each procedure according to different applications. A special review on the need of standardization of protocols has also been carried out. …
Breeding Behavior Of Female White-Tailed Deer Relative To Conception: Evidence For Female Mate Choice, Jeffery D. Sullivan, Stephen S. Ditchkoff, Bret A. Collier, Charles R. Ruth, Joshua B. Raglin
Breeding Behavior Of Female White-Tailed Deer Relative To Conception: Evidence For Female Mate Choice, Jeffery D. Sullivan, Stephen S. Ditchkoff, Bret A. Collier, Charles R. Ruth, Joshua B. Raglin
Faculty Publications
Female white-tailed deer (Odocoileus virginianus) are thought to choose between two behavioral strategies to maximize the quality of potential mates: sit and wait, characterized by concentrating activity within a restricted area, and excursive behavior, characterized by increased activity and excursions outside the home range. As movement patterns may influence conception, our goal was to examine the patterns of female white-tailed deer movements to evaluate which breeding strategy was employed. We equipped 36 female white-tailed deer with GPS collars from August 2013 to December 2015. We found that movement rate and probability of activity were greatest near the peak of the …
Spring 2017 Catalog, Lsu Press
Investigation On Hemolytic Effect Of Poly(Lactic Co-Glycolic) Acid Nanoparticles Synthesized Using Continuous Flow And Batch Processes, Sumit Libi, Bogdan Calenic, Carlos E. Astete, Challa Kumar, Cristina M. Sabliov
Investigation On Hemolytic Effect Of Poly(Lactic Co-Glycolic) Acid Nanoparticles Synthesized Using Continuous Flow And Batch Processes, Sumit Libi, Bogdan Calenic, Carlos E. Astete, Challa Kumar, Cristina M. Sabliov
Faculty Publications
With the increasing interest in polymeric nanoparticles for biomedical applications, there is a need for continuous flow methodologies that allow for the precise control of nanoparticle synthesis. Poly(lactide-co-glycolic) acid (PLGA) nanoparticles with diameters of 220-250 nm were synthesized using a lab-on-a-chip, exploiting the precise flow control offered by a millifluidic platform. The association and the effect of PLGA nanoparticles on red blood cells (RBCs) were compared for fluorescent PLGA nanoparticles made by this novel continuous flow process using a millifluidic chip and smaller PLGA nanoparticles made by a batch method. Results indicated that all PLGA nanoparticles studied, independent of the …
Insights Into Stat5 Biology, Taylor Millar
Characterizing Two Bestrophin Mutants Of Chlamydomonas Reinhardtii, Camille I. Prejean
Characterizing Two Bestrophin Mutants Of Chlamydomonas Reinhardtii, Camille I. Prejean
Honors Capstones
No abstract provided.
Localization Of The Cystic Fibrosis Transmembrane Conductance Regulator In Retinal Amacrine Cells, Jordan Renschler
Localization Of The Cystic Fibrosis Transmembrane Conductance Regulator In Retinal Amacrine Cells, Jordan Renschler
Honors Capstones
No abstract provided.
The Effects Of Light Intensity On The Growth Kinetics Of The Cyanobacteria Synechococcus Elongatus And Synechocystis Sp., Aleshia Lexus Hector
The Effects Of Light Intensity On The Growth Kinetics Of The Cyanobacteria Synechococcus Elongatus And Synechocystis Sp., Aleshia Lexus Hector
Honors Capstones
No abstract provided.
Fractured Europe, Patrick Isacks
Immunohistochemical Comparison Of Retinal Cell Populations In An Aquatic Predator Species And A Terrestrial Prey Species That Share A Common Evolutionary Ancestor, Nikka Khorsandi
Honors Capstones
No abstract provided.
Urban Soils In Response To Flooding, Katherine Henry
Urban Soils In Response To Flooding, Katherine Henry
Honors Capstones
No abstract provided.
Secrets Of Sines: The Story Of Platy-1 Propagation In The Saimiri Lineage, Sarah Brantley
Secrets Of Sines: The Story Of Platy-1 Propagation In The Saimiri Lineage, Sarah Brantley
Honors Capstones
No abstract provided.
Effects Of Timber Harvest On Avian Abundance And Diversity, Mckenzie Brandon
Effects Of Timber Harvest On Avian Abundance And Diversity, Mckenzie Brandon
Honors Capstones
No abstract provided.
Development Of An In Vivo Assay For Acetyl-Coa Carboxylase Using 1,3,6,8- Tetrahydroxynapthalene Synthase, Sarah Bond
Development Of An In Vivo Assay For Acetyl-Coa Carboxylase Using 1,3,6,8- Tetrahydroxynapthalene Synthase, Sarah Bond
Honors Capstones
No abstract provided.
Effects Of Increased Sedimentation On Carbon Accumulation Of Salt Marsh Benthic Biofilms, Abbey Hotard
Effects Of Increased Sedimentation On Carbon Accumulation Of Salt Marsh Benthic Biofilms, Abbey Hotard
Honors Capstones
No abstract provided.
Quantitative Analysis Of High Pressure Hazards In Oil And Gas Field Operations, Giuseppe Feo
Quantitative Analysis Of High Pressure Hazards In Oil And Gas Field Operations, Giuseppe Feo
Honors Capstones
No abstract provided.
Potential Effects Of Tfiiic Binding To The Rad2 Promoter, Margaret Agosta
Potential Effects Of Tfiiic Binding To The Rad2 Promoter, Margaret Agosta
Honors Capstones
No abstract provided.
Proteomic Analytical Viability Of Ffpe Preserved Tissue Using Laser Ablation- Capture And Tandem Mass Spectrometry (Ms/Ms), Joshua Edwards
Proteomic Analytical Viability Of Ffpe Preserved Tissue Using Laser Ablation- Capture And Tandem Mass Spectrometry (Ms/Ms), Joshua Edwards
Honors Capstones
No abstract provided.
Making Plants Break A Sweat: The Structure, Function, And Evolution Of Plant Salt Glands, Maheshi Dassanayake, John C. Larkin
Making Plants Break A Sweat: The Structure, Function, And Evolution Of Plant Salt Glands, Maheshi Dassanayake, John C. Larkin
Faculty Publications
© 2017 Dassanayake and Larkin. Salt stress is a complex trait that poses a grand challenge in developing new crops better adapted to saline environments. Some plants, called recretohalophytes, that have naturally evolved to secrete excess salts through salt glands, offer an underexplored genetic resource for examining how plant development, anatomy, and physiology integrate to prevent excess salt from building up to toxic levels in plant tissue. In this review we examine the structure and evolution of salt glands, salt gland-specific gene expression, and the possibility that all salt glands have originated via evolutionary modifications of trichomes. Salt secretion via …
Arthropod Diversity And Functional Importance In Old-Growth Forests Of North America, Timothy Schowalter
Arthropod Diversity And Functional Importance In Old-Growth Forests Of North America, Timothy Schowalter
Faculty Publications
Old-growth forests have become rare in North America but provide habitat for unique assemblages of species that often are rare in younger forests. Insects and related arthropods reach their highest diversity in old-growth forests because of their stable moderate temperature and relative humidity and the rich variety of resources represented by high plant species richness and structural complexity. Old-growth arthropod assemblages typically are distinct from those in younger, managed forests. Major subcommunities include the arboreal community that is composed of a rich assemblage of herbivores, fungivores, and their associated predators and parasitoids that function to regulate primary production and nutrient …
Stability And Robustness Analysis For Human Pointing Motions With Acceleration Under Feedback Delays, Paul Varnell, Michael Malisoff, Fumin Zhang
Stability And Robustness Analysis For Human Pointing Motions With Acceleration Under Feedback Delays, Paul Varnell, Michael Malisoff, Fumin Zhang
Faculty Publications
Pointer acceleration is often used in computer mice and other interfaces to increase the range and speed of pointing motions without sacrificing precision during slow movements. However, the effects of pointer acceleration are not yet well understood. We use a system perspective and feedback control to analyze the effects of pointer acceleration. We use a new pointer acceleration model connected in feedback with the vector integration to endpoint model for pointing motions. When there are no feedback delays, we prove global asymptotic stability of the closed loop system for a general class of acceleration profiles. We also prove robustness under …
Amphiphilic Polypeptoids Serve As The Connective Glue To Transform Liposomes Into Multilamellar Structures With Closely Spaced Bilayers, Yueheng Zhang, Sunting Xuan, Olasehinde Owoseni, Marzhana Omarova, Xin Li, Michelle E. Saito, Jibao He, Gary L. Mcpherson, Srinivasa R. Raghavan, Donghui Zhang, Vijay T. John
Amphiphilic Polypeptoids Serve As The Connective Glue To Transform Liposomes Into Multilamellar Structures With Closely Spaced Bilayers, Yueheng Zhang, Sunting Xuan, Olasehinde Owoseni, Marzhana Omarova, Xin Li, Michelle E. Saito, Jibao He, Gary L. Mcpherson, Srinivasa R. Raghavan, Donghui Zhang, Vijay T. John
Faculty Publications
© 2017 American Chemical Society. We report the ability of hydrophobically modified polypeptoids (HMPs), which are amphiphilic pseudopeptidic macromolecules, to connect across lipid bilayers and thus form layered structures on liposomes. The HMPs are obtained by attaching hydrophobic decyl groups at random points along the polypeptoid backbone. Although native polypeptoids (with no hydrophobes) have no effect on liposomal structure, the HMPs remodel the unilamellar liposomes into structures with comparable diameters but with multiple concentric bilayers. The transition from single-bilayer to multiple-bilayer structures is revealed by small-angle neutron scattering (SANS) and cryo-transmission electron microscopy (cryo-TEM). The spacing between bilayers is found …
Erratum To: Aquaculture Genomics, Genetics And Breeding In The United States: Current Status, Challenges, And Priorities For Future Research. [Bmc Genomics. 18, (2017), (191)] Doi: 10.1186/S12864-017-3557-1, Hisham Abdelrahman, Mohamed Elhady, Acacia Alcivar-Warren, Standish Allen, Rafet Al-Tobasei, Lisui Bao, Ben Beck, Harvey Blackburn, Brian Bosworth, John Buchanan, Jesse Chappell, William Daniels, Sheng Dong, Rex Dunham, Evan Durland, Ahmed Elaswad, Marta Gomez-Chiarri, Kamal Gosh, Ximing Guo, Perry Hackett, Terry Hanson, Dennis Hedgecock, Tiffany Howard, Leigh Holland, Molly Jackson, Yulin Jin, Karim Khalil, Thomas Kocher, Tim Leeds, Ning Li, Lauren Lindsey, Shikai Liu, Zhanjiang Liu
Erratum To: Aquaculture Genomics, Genetics And Breeding In The United States: Current Status, Challenges, And Priorities For Future Research. [Bmc Genomics. 18, (2017), (191)] Doi: 10.1186/S12864-017-3557-1, Hisham Abdelrahman, Mohamed Elhady, Acacia Alcivar-Warren, Standish Allen, Rafet Al-Tobasei, Lisui Bao, Ben Beck, Harvey Blackburn, Brian Bosworth, John Buchanan, Jesse Chappell, William Daniels, Sheng Dong, Rex Dunham, Evan Durland, Ahmed Elaswad, Marta Gomez-Chiarri, Kamal Gosh, Ximing Guo, Perry Hackett, Terry Hanson, Dennis Hedgecock, Tiffany Howard, Leigh Holland, Molly Jackson, Yulin Jin, Karim Khalil, Thomas Kocher, Tim Leeds, Ning Li, Lauren Lindsey, Shikai Liu, Zhanjiang Liu
Faculty Publications
In the version of this article that was originally published [1] there was an error with the author name "Karim Khalil" as it was incorrectly put as "Karim Kahlil". The original article was corrected.
Synthesis And Characterization Of Well-Defined Pegylated Polypeptoids As Protein-Resistant Polymers, Sunting Xuan, Sudipta Gupta, Xin Li, Markus Bleuel, Gerald J. Schneider, Donghui Zhang
Synthesis And Characterization Of Well-Defined Pegylated Polypeptoids As Protein-Resistant Polymers, Sunting Xuan, Sudipta Gupta, Xin Li, Markus Bleuel, Gerald J. Schneider, Donghui Zhang
Faculty Publications
© 2017 American Chemical Society. Well-defined polypeptoids bearing oligomeric ethylene glycol side chains (PNMe(OEt)nG, n = 1-3) with a controlled molecular weight (3.26-28.6 kg/mol) and narrow molecular weight distribution (polydispersity index, PDI = 1.03-1.10) have been synthesized by ring-opening polymerization of the corresponding N-carboxyanhydrides having oligomeric ethylene glycol side chains (Me(OEt)n-NCA, n = 1-3) using primary amine initiators. Kinetic studies of polymerization revealed a first-order dependence on the monomer concentration, consistent with living polymerization. The obtained PEGylated polypeptoids are highly hydrophilic with good water solubility (>200 mg/mL) and are amorphous, with a glass transition temperature in the -41.1 to …
Synthesis And Spectroscopic Investigation Of A Series Of Push-Pull Boron Dipyrromethenes (Bodipys), Sunting Xuan, Ning Zhao, Xiangyi Ke, Zehua Zhou, Frank R. Fronczek, Karl M. Kadish, Kevin M. Smith, M. Graça H. Vicente
Synthesis And Spectroscopic Investigation Of A Series Of Push-Pull Boron Dipyrromethenes (Bodipys), Sunting Xuan, Ning Zhao, Xiangyi Ke, Zehua Zhou, Frank R. Fronczek, Karl M. Kadish, Kevin M. Smith, M. Graça H. Vicente
Faculty Publications
© 2017 American Chemical Society. A series of push-pull BODIPYs bearing multiple electron-donating and electron-acceptor groups were synthesized regioselectively from 2,3,5,6,8-pentachloro-BODIPY, and characterized by NMR spectroscopy, HRMS, and X-ray crystallography. The influence of the push-pull substituents on the spectroscopic and electrochemical properties of BODIPYs was investigated. Bathochromic shifts were observed for both absorbance (up to 37 nm) and emission (up to 60 nm) in different solvents upon introduction of the push-pull moieties. DFT calculations, consistent with the spectroscopic and cyclic voltammetry studies, show decreased HOMO-LUMO energy gaps upon the installation of the push-pull moieties. BODIPY 7 bearing thienyl groups on …
Quantification Of Multiple Simultaneously Occurring Nitrogen Flows In The Euphotic Ocean, Min Nina Xu, Yanhua Wu, Li Wei Zheng, Zhenzhen Zheng, Huade Zhao, Edward A. Laws, Shuh Ji Kao
Quantification Of Multiple Simultaneously Occurring Nitrogen Flows In The Euphotic Ocean, Min Nina Xu, Yanhua Wu, Li Wei Zheng, Zhenzhen Zheng, Huade Zhao, Edward A. Laws, Shuh Ji Kao
Faculty Publications
The general features of the N cycle in the sunlit region of the ocean are well known, but methodological difficulties have previously confounded simultaneous quantification of transformation rates among the many different forms of N, e.g., ammonium (NH4+), nitrite (NO2-), nitrate (NO3-), and particulate/dissolved organic nitrogen (PN/DON). However, recent advances in analytical methodology have made it possible to employ a convenient isotope labeling technique to quantify in situ fluxes among oft-measured nitrogen species within the euphotic zone. Addition of a single 15N-labeled NH4+ tracer and monitoring of the changes in the concentrations …
Nitric Oxide Promotes Gaba Release By Activating A Voltage-Independent Ca2+ Influx Pathway In Retinal Amacrine Cells, J. Wesley Maddox, Evanna Gleason
Nitric Oxide Promotes Gaba Release By Activating A Voltage-Independent Ca2+ Influx Pathway In Retinal Amacrine Cells, J. Wesley Maddox, Evanna Gleason
Faculty Publications
© 2017 the American Physiological Society. Retinal amacrine cells express nitric oxide (NO) synthase and produce NO, making NO available to regulate the function of amacrine cells. Here we test the hypothesis that NO can alter the GABAergic synaptic output of amacrine cells. We investigate this using whole cell voltage clamp recordings and Ca2 imaging of cultured chick retinal amacrine cells. When recording from amacrine cells receiving synaptic input from other amacrine cells, we find that NO increases GABAergic spontaneous postsynaptic current (sPSC) frequency. This increase in sPSC frequency does not require the canonical NO receptor, soluble guan-ylate cyclase, or …
Groundcover Community Assembly In High-Diversity Pine Savannas: Seed Arrival And Fire-Generated Environmental Filtering, Kyle E. Harms, Paul R. Gagnon, Heather A. Passmore, Jonathan A. Myers, William J. Platt
Groundcover Community Assembly In High-Diversity Pine Savannas: Seed Arrival And Fire-Generated Environmental Filtering, Kyle E. Harms, Paul R. Gagnon, Heather A. Passmore, Jonathan A. Myers, William J. Platt
Faculty Publications
© 2017 Harms et al. Environmental filtering-abiotic and biotic constraints on the demographic performance of individual organisms-is a widespread mechanism of selection in communities. A given individual is "filtered out" (i.e., selectively removed) when environmental conditions or disturbances like fires preclude its survival and reproduction. Although interactions between these filters and dispersal from the regional species pool are thought to determine much about species composition locally, there have been relatively few studies of dispersal × filtering interactions in species-rich communities and fewer still where fire is also a primary selective agent. We experimentally manipulated dispersal and filtering by fire (pre-fire …
Two New Pentaphylacaceae Species From Southern Central America, Daniel Santamaría-Aguilar, Laura P. Lagomarsino
Two New Pentaphylacaceae Species From Southern Central America, Daniel Santamaría-Aguilar, Laura P. Lagomarsino
Faculty Publications
© 2016, The New York Botanical Garden. We describe two new species of Pentaphylacaceae: Freziera monteverdensis from Costa Rica and Ternstroemia liesneriana from Panama. Line drawings, color images of living plants for one of the species, and discussions comparing the new species to their presumed closest relatives are provided.