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Bottom-Up Trait-Mediated Indirect Effects Decrease Pathogen Transmission In A Tritrophic System, Bret D. Elderd Jan 2019

Bottom-Up Trait-Mediated Indirect Effects Decrease Pathogen Transmission In A Tritrophic System, Bret D. Elderd

Faculty Publications

© 2018 by the Ecological Society of America A plant's induction of secondary defenses helps to decrease herbivore damage by changing resource quality. While these chemical or physical defenses may directly decrease herbivory, they can also have indirect consequences. In a tritrophic system consisting of a plant, an insect herbivore, and an insect pathogen, plant based trait-mediated indirect effects (TMIEs) can alter host–pathogen interactions and, thereby, indirectly affect disease transmission. In a series of field experiments, individual soybean plants (Glycine max) were sprayed with either a jasmonic acid (JA) solution to trigger induction of plant defenses or a similar control …

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Rapidly Expanding Nuclear Arsenals In Pakistan And India Portend Regional And Global Catastrophe, O.B. Toon, C.G. Bardeen, A. Robock, L. Xia, H. Kristensen, M. Mckinzie, R.J. Peterson, C.S. Harrison, N.S. Lovenduski, R.P. Turco Jan 2019

Rapidly Expanding Nuclear Arsenals In Pakistan And India Portend Regional And Global Catastrophe, O.B. Toon, C.G. Bardeen, A. Robock, L. Xia, H. Kristensen, M. Mckinzie, R.J. Peterson, C.S. Harrison, N.S. Lovenduski, R.P. Turco

Faculty Publications

No abstract provided.

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Sediment Transport And Channel Dynamics Of The Lowermost Mississippi River In Recent Decades, Yijun Xu, Bo Wang, Sanjeev Joshi Jan 2019

Sediment Transport And Channel Dynamics Of The Lowermost Mississippi River In Recent Decades, Yijun Xu, Bo Wang, Sanjeev Joshi

Faculty Publications

Sediment transport and channel dynamics of large alluvial rivers in their lower reaches can strongly influence physical, chemical and biological conditions in their deltaic regions. In this paper, we report the latest assessment on sediment transport and riverbed dynamics of the last 500-km reach of the Mississippi River before entering the Gulf of Mexico. This river reach is also termed as the Lowermost Mississippi River (LmMR), which begins downstream of its division node to the Atchafalaya River. Our assessment shows that in the past 2-3 decades, suspended sediment and bed material loads in the LmMR were significantly higher at the …

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Dissolved Carbon Transport And Processing In North America's Largest Swamp River Entering The Northern Gulf Of Mexico, Emily M. Delduco, Y. Jun Xu Jan 2019

Dissolved Carbon Transport And Processing In North America's Largest Swamp River Entering The Northern Gulf Of Mexico, Emily M. Delduco, Y. Jun Xu

Faculty Publications

Transport and transformation of riverine dissolved carbon is an important component of global carbon cycling. The Atchafalaya River (AR) flows 189 kilometers through the largest bottomland swamp in North America and discharges ~25% of the flow of the Mississippi River into the Gulf of Mexico annually, providing a unique opportunity to study the floodplain/wetland impacts on dissolved carbon. The aim of this study is to determine how dissolved organic carbon (DOC) and dissolved inorganic carbon (DIC) in the AR change spatially and seasonally, and to elucidate which processes control the carbon cycling in this intricate swamp-river system. From May 2015 …

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Nest And Brood Site Selection Of Eastern Wild Turkeys, Jeremy D. Wood, Bradley S. Cohen, L. Mike Conner, Bret A. Collier, Michael J. Chamberlain Jan 2019

Nest And Brood Site Selection Of Eastern Wild Turkeys, Jeremy D. Wood, Bradley S. Cohen, L. Mike Conner, Bret A. Collier, Michael J. Chamberlain

Faculty Publications

Management of longleaf pine (Pinus palustris) forests relies on frequent prescribed fire to maintain desirable plant communities. Prescribed fire is often applied while female wild turkeys (Meleagris gallopavo) are reproductively active and may immediately affect habitat availability and demographic outcomes. We identified covariates affecting selection of areas used by nesting and brooding females and determined if these covariates influenced nest and brood survival in a longleaf pine ecosystem. We captured 63 female wild turkeys and measured vegetation and landscape characteristics surrounding nests, brood roosts, and daytime use sites. We used conditional logistic regression to determine which vegetation and landscape-scale characteristics …

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The Role Of Talker Familiarity In Auditory Distraction, Brittan A. Barker, Emily M. Elliott Jan 2019

The Role Of Talker Familiarity In Auditory Distraction, Brittan A. Barker, Emily M. Elliott

Faculty Publications

The current research employed a classic irrelevant sound effect paradigm and investigated the talker-specific content of the irrelevant speech. Specifically, we aimed to determine if the participants' familiarity with the irrelevant speech's talker affected the magnitude of the irrelevant sound effect. Experiment 1 was an exploration of talker familiarity established in a natural listening environment (i.e., a university classroom) in which we manipulated the participants' relationships with the talker. In Experiment 2, we manipulated the participants' familiarity with the talker via 4 days of controlled exposure to the target talker's audio recordings. For both Experiments 1 and 2, a robust …

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Diet Of Lesser Scaup Wintering On Lake Pontchartrain, Louisiana, Clay M. Stroud, Claire E. Caputo, Michael A. Poirrier, Kevin M. Ringelman Jan 2019

Diet Of Lesser Scaup Wintering On Lake Pontchartrain, Louisiana, Clay M. Stroud, Claire E. Caputo, Michael A. Poirrier, Kevin M. Ringelman

Faculty Publications

The lesser scaup Aythya affinis has been a species of conservation concern since continental breeding populations began declining in the 1980s. The causes of this decline are likely multifaceted, but cross-seasonal effects are believed to play a prominent role: females unable to acquire sufficient nutrient reserves during winter and spring migration have poor survival and breeding success. Understanding scaup diet composition and prey selection can help managers not only diagnose mechanisms underlying wintering scaup distributions, but may also help direct management actions to increase forage availability and quality. We evaluated the diet of 60 scaup collected from a major wintering …

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Calibrating A Taper Model For Oriental Spruce In Turkey, Ramazan Özçelik, Quang V. Cao, Hakkı Yavuz Jan 2019

Calibrating A Taper Model For Oriental Spruce In Turkey, Ramazan Özçelik, Quang V. Cao, Hakkı Yavuz

Faculty Publications

In this study, Max and Burkhart (1976)’s segmented taper model was used to describe stem profile and predict stem volume of oriental spruce in Turkey. Thirty procedures were evaluated, which include five fitting methods and six adjustment strategies. The fitting methods resulted in parameters that were optimized for (1) taper, (2) cumulative volume, (3) taper and cumulative volume, (4) taper and total volume, and (5) taper, cumulative volume, and total volume. The adjustment strategies are (1) unadjusted, and adjusted to match (2) DBH, (3) predicted total volume, (4) DBH and predicted total volume, (5) a combined estimator, and (6) DBH …

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A Method To Derive A Tree Survival Model From Any Existing Stand Survival Model, Quang V. Cao Jan 2019

A Method To Derive A Tree Survival Model From Any Existing Stand Survival Model, Quang V. Cao

Faculty Publications

This study addresses a situation in which a forest manager has been using a whole-stand model that seems to predict well for their stands and now wants to derive an individual-tree model from it to form an integrated system that can perform well at both stand and tree levels. A simple method was developed to derive tree survival models from three existing stand-level survival models. The derived tree survival models were based on the difference between the diameter of a given tree and the diameter at which tree and stand survival probabilities are equal. For stand survival prediction, each stand …

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Sweetpotato Cultivar Trials On Hawai‘I Island, Susan C. Miyasaka, Marisa Wall, Don Labonte, Alton Arakaki Jan 2019

Sweetpotato Cultivar Trials On Hawai‘I Island, Susan C. Miyasaka, Marisa Wall, Don Labonte, Alton Arakaki

Faculty Publications

Twelve sweetpotato (Ipomoea batatas var. batatas) accessions/cultivars/ landraces (entries) were evaluated for yield, resistance to pests, and quality in five field trials planted at Pepe‘ekeo, Hawai‘i Island, and replicated over time with blocks planted on May and Oct. 2014, Feb. and July 2015, and Jan. 2016. Plots were harvested at 4.5 to 6 months after planting. In the first two field trials, local entries planted were ‘Okinawan’, ‘Mokuau’, and ‘Kona B’, as well as PI 531094, ‘Beauregard’, PI 573309, PI 573330, ‘Darby’, ‘Pelican Processor’, and ‘Picadito’. Yields of ‘Mokuau’ and ‘Kona B’ were low and were replaced in the latter …

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Ictv Virus Taxonomy Profile: Endornaviridae, Rodrigo A. Valverde, Mahmoud E. Khalifa, Ryo Okada, Toshiyuki Fukuhara, Sead Sabanadzovic Jan 2019

Ictv Virus Taxonomy Profile: Endornaviridae, Rodrigo A. Valverde, Mahmoud E. Khalifa, Ryo Okada, Toshiyuki Fukuhara, Sead Sabanadzovic

Faculty Publications

The family Endornaviridae includes viruses with linear, single-stranded, positive-sense RNA genomes that range from 9.7 to 17.6 kb and have been reported infecting plants, fungi and oomycetes. The family consists of two genera, Alphaendornavirus and Betaendornavirus, into which viruses are classified based on their genome size, host and presence of unique domains. Alphaendornavirus includes species whose members infect plants, fungi and oomycetes, while the genus Betaendornavirus includes species whose members infect ascomycete fungi. This is a summary of the ICTV Report on the family Endornaviridae, which is available at www.ictv.global/report/endornaviridae.

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Progesterone Alters The Bovine Uterine Fluid Lipidome During The Period Of Elongation, Constantine A. Simintiras, José M. Sánchez, Michael Mcdonald, Pat Lonergan Jan 2019

Progesterone Alters The Bovine Uterine Fluid Lipidome During The Period Of Elongation, Constantine A. Simintiras, José M. Sánchez, Michael Mcdonald, Pat Lonergan

Faculty Publications

Successful bovine pregnancy establishment hinges on conceptus elongation, a key reproductive phenomenon coinciding with the period during which most pregnancies fail. Elongation is yet to be recapitulated in vitro, whereas in vivo it is directly driven by uterine secretions and indirectly influenced by prior circulating progesterone levels. To better understand the microenvironment evolved to facilitate this fundamental developmental event, uterine fluid was recovered on Days 12–14 of the oestrous cycle – the window of conceptus elongation initiation – from cycling heifers supplemented, or not, with progesterone. Subsequent lipidomic profiling of uterine luminal fluid by advanced high-throughput metabolomics revealed the consistent …

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Aspects Of Embryo-Maternal Communication In Establishment Of Pregnancy In Cattle, José M. Sánchez, Constantine A. Simintiras, Patrick Lonergan Jan 2019

Aspects Of Embryo-Maternal Communication In Establishment Of Pregnancy In Cattle, José M. Sánchez, Constantine A. Simintiras, Patrick Lonergan

Faculty Publications

Establishment of pregnancy in mammals requires reciprocal molecular communication between the conceptus and endometrium that modifies the endometrial transcriptome and uterine luminal milieu to support pregnancy. Due to the small size of the early embryo and elongating conceptus relative to the volume of the uterine lumen, collection of endometrium adjacent to the developing conceptus is difficult following conventional uterine flushing methods in cattle. Use of endometrial explants in culture can overcome this challenge and reveal information about the dialogue between the developing embryo and the uterus. The aim of this short review is to summarize some of our recent findings …

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Attachment Strength And On-Farm Die-Off Rate Of Escherichia Coli On Watermelon Surfaces, Vijay Singh Chhetri, Kathryn Fontenot, Ronald Strahan, Veerachandra K. Yemmireddy, Cameron Cason, Karuna Kharel, Achyut Adhikari Jan 2019

Attachment Strength And On-Farm Die-Off Rate Of Escherichia Coli On Watermelon Surfaces, Vijay Singh Chhetri, Kathryn Fontenot, Ronald Strahan, Veerachandra K. Yemmireddy, Cameron Cason, Karuna Kharel, Achyut Adhikari

Faculty Publications

Pre-harvest contamination of produce has been a major food safety focus. Insight into the behavior of enteric pathogens on produce in pre-harvest conditions will aid in developing pre-harvest and post-harvest risk management strategies. In this study, the attachment strength (S R ) and die-off rate of E. coli on the surface of watermelon fruits and the efficacy of aqueous chlorine treatment against strongly attached E. coli population were investigated. Watermelon seedlings were transplanted into eighteen plots. Prior to harvesting, a cocktail of generic E. coli (ATCC 23716, 25922 and 11775) was inoculated on the surface of the watermelon fruits (n …

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An Actin-Depolymerizing Factor From The Halophyte Smooth Cordgrass, Spartina Alterniflora (Saadf2), Is Superior To Its Rice Homolog (Osadf2) In Conferring Drought And Salt Tolerance When Constitutively Overexpressed In Rice, Sonali Sengupta, Venkata Mangu, Luis Sanchez, Renesh Bedre, Rohit Joshi, Kanniah Rajasekaran, Niranjan Baisakh Jan 2019

An Actin-Depolymerizing Factor From The Halophyte Smooth Cordgrass, Spartina Alterniflora (Saadf2), Is Superior To Its Rice Homolog (Osadf2) In Conferring Drought And Salt Tolerance When Constitutively Overexpressed In Rice, Sonali Sengupta, Venkata Mangu, Luis Sanchez, Renesh Bedre, Rohit Joshi, Kanniah Rajasekaran, Niranjan Baisakh

Faculty Publications

Actin-depolymerizing factors (ADFs) maintain the cellular actin network dynamics by regulating severing and disassembly of actin filaments in response to environmental cues. An ADF isolated from a monocot halophyte, Spartina alterniflora (SaADF2), imparted significantly higher level of drought and salinity tolerance when expressed in rice than its rice homologue OsADF2. SaADF2 differs from OsADF2 by a few amino acid residues, including a substitution in the regulatory phosphorylation site serine-6, which accounted for its weak interaction with OsCDPK6 (calcium-dependent protein kinase), thus resulting in an increased efficacy of SaADF2 and enhanced cellular actin dynamics. SaADF2 overexpression preserved the actin filament organization …

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Food-Burying Behavior In Red Imported Fire Ants (Hymenoptera: Formicidae), Wenquan Qin, Xuan Chen, Linda M. Hooper-Bùi, Jiacheng Cai, Lei Wang, Zhaohui Sun, Xiujun Wen, Cai Wang Jan 2019

Food-Burying Behavior In Red Imported Fire Ants (Hymenoptera: Formicidae), Wenquan Qin, Xuan Chen, Linda M. Hooper-Bùi, Jiacheng Cai, Lei Wang, Zhaohui Sun, Xiujun Wen, Cai Wang

Faculty Publications

The food-burying behavior has been reported in many mammals and birds, but was rarely observed in invertebrates. The red imported fire ants, Solenopsis invicta Buren, is an invasive pest in many areas of the world that usually performing food-burying during the foraging processes. However, the impacted factors and measureable patterns of this behavior is largely unknown. In the present study, food-burying vs food-transport behaviors of Solenopsis invicta were observed under laboratory and field conditions. When starved (no food was provided for 37 days) in the laboratory, food (sausage) was consumed by large numbers of ants, and few burying behaviors were …

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Comparative Functional And Phylogenomic Analyses Of Host Association In The Remoras (Echeneidae), A Family Of Hitchhiking Fishes, C. P. Kenaley, A. Stote, W. B. Ludt, P. Chakrabarty Jan 2019

Comparative Functional And Phylogenomic Analyses Of Host Association In The Remoras (Echeneidae), A Family Of Hitchhiking Fishes, C. P. Kenaley, A. Stote, W. B. Ludt, P. Chakrabarty

Faculty Publications

The family Echeneidae consists of eight species of marine fishes that hitchhike by adhering to a wide variety of vertebrate hosts via a sucking disc. While several studies have focused on the interrelationships of the echeneids and the adhesion performance of a single species, no clear phylogenetic hypothesis has emerged and the morphological basis of adhesion remains largely unknown. We first set out to resolve the interrelationships of the Echeneidae by taking a phylogenomic approach using ultraconserved elements. Then, within this framework, we characterized disc morphology through μ-CT analysis, evaluated host specificity through an analysis of host phylogenetic distance, and …

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Inferring The Mammal Tree: Species-Level Sets Of Phylogenies For Questions In Ecology, Evolution, And Conservation, Nathan S. Upham, Jacob A. Esselstyn, Walter Jetz Jan 2019

Inferring The Mammal Tree: Species-Level Sets Of Phylogenies For Questions In Ecology, Evolution, And Conservation, Nathan S. Upham, Jacob A. Esselstyn, Walter Jetz

Faculty Publications

Big, time-scaled phylogenies are fundamental to connecting evolutionary processes to modern biodiversity patterns. Yet inferring reliable phylogenetic trees for thousands of species involves numerous trade-offs that have limited their utility to comparative biologists. To establish a robust evolutionary timescale for all approximately 6,000 living species of mammals, we developed credible sets of trees that capture root-to-tip uncertainty in topology and divergence times. Our “backbone-and-patch” approach to tree building applies a newly assembled 31-gene supermatrix to two levels of Bayesian inference: (1) backbone relationships and ages among major lineages, using fossil node or tip dating, and (2) species-level “patch” phylogenies with …

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An Analysis Of The Effect Of Tooth Wear On Bovid Identification, Juliet K. Brophy, Gregory J. Matthews, George K. Thiruvathukal Jan 2019

An Analysis Of The Effect Of Tooth Wear On Bovid Identification, Juliet K. Brophy, Gregory J. Matthews, George K. Thiruvathukal

Faculty Publications

Previous research provides a method for reducing the subjectivity in taxonomic identification of species in the family Bovidae by quantifying the occlusal surface of molar teeth using elliptical Fourier analysis. In this current study, we specifically test what effect medium to late tooth wear has on the identification of bovids when using the form (size and shape) of the occlusal surface to classify specimens. To achieve this, the classification results of teeth with ≥85% of their occlusal surface (training data set) were compared with the results of teeth with 87% of the time with both Alcelaphini and Reduncini classifying correctly …

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The Development Of A High-Throughput Screening Assay For Acetyl-Coa Carboxylase Using 1,3,6,8-Tetrahydroxynapthalene Synthase, Sarah Elayne Cohen Jan 2019

The Development Of A High-Throughput Screening Assay For Acetyl-Coa Carboxylase Using 1,3,6,8-Tetrahydroxynapthalene Synthase, Sarah Elayne Cohen

Honors Capstones

No abstract provided.

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In Between Realms: The Search For Feminine Selfhood In The Essais Of Montaigne, Anna Suarez Dec 2018

In Between Realms: The Search For Feminine Selfhood In The Essais Of Montaigne, Anna Suarez

Comparative Woman

My purpose is to explore factors of the Renaissance that determined women’s selfhood in Montaigne’s Essais. I argue that the shift into modernity is responsible for the loss of women’s autonomy as well as the anxiety experienced by men regarding their power as well as their potential. Montaigne and Renaissance discourse defines women only by their bodies (sexual organs) and I explore the elements that established biological essentialism. This paper exemplifies comparative literature in the sense that it combines literature, theory, and art for the purpose of creating a well-researched examination of the root causes for why women were …

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My Big Fat Catholic Queer Wedding, Kourtney Baker Dec 2018

My Big Fat Catholic Queer Wedding, Kourtney Baker

Comparative Woman

No abstract provided.

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Intraguild Predation: Interactions Between Predators, Pathogens, And Their Shared Resources In Crop Pest Communities, Andrew Jason Flick Dec 2018

Intraguild Predation: Interactions Between Predators, Pathogens, And Their Shared Resources In Crop Pest Communities, Andrew Jason Flick

LSU Doctoral Dissertations

Crop pest management requires an understanding of the complex interactions among pest species that potentially damage crop yield and species that may be crucial for controlling pest species outbreaks. For example, predators, parasitoids, and pathogens are constantly interacting via their shared prey or hosts. Predators may prefer infected prey, which can be easier to catch; however, infected prey may be less nutritious or even lethal for predators. These interactions then dictate the short-term dynamics of host and pathogen as well as between prey and predator. "How these dynamics change as the species in the system change either empirically or theoretically?" …

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Diel Variability Of Pco 2 And Co 2 Outgassing From The Lower Mississippi River: Implications For Riverine Co 2 Outgassing Estimation, Jeremy H. Reiman, Y. Jun Xu Dec 2018

Diel Variability Of Pco 2 And Co 2 Outgassing From The Lower Mississippi River: Implications For Riverine Co 2 Outgassing Estimation, Jeremy H. Reiman, Y. Jun Xu

Faculty Publications

Carbon dioxide (CO 2 ) outgassing from river surface waters is an important component of the global carbon cycle currently not well constrained. To test the hypothesis that riverine partial pressure of CO 2 (pCO 2 ) and CO 2 outgassing rates differ between daylight and darkness, we conducted in-situ pCO 2 and ambient water measurements over four 24-h periods in the spring and summer of 2018 in the Lower Mississippi River under varying flow regimes. We hypothesized that diel pCO 2 variation will correlate inversely with solar radiation due to light-induced photosynthesis. Despite differing ambient conditions between seasons, we …

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Phenotypic And Transcriptomic Characterization Of Colonial Phase Variation In The Cholera Pathogen Reveals A Novel Smooth Biofilm-Defective Form, Bliss Nicole Lambert Dec 2018

Phenotypic And Transcriptomic Characterization Of Colonial Phase Variation In The Cholera Pathogen Reveals A Novel Smooth Biofilm-Defective Form, Bliss Nicole Lambert

LSU Doctoral Dissertations

Biofilm formation, through the production of Vibrio polysaccharide (VPS), greatly enhances the environmental fitness and pathogenic success of Vibrio cholerae. As a result of phase variation, V. cholerae can switch from a smooth form to rugose, whose cells produce excess VPS, resulting in highly structured biofilms and greater resistance to stress. To further characterize the reversible process of phase variation, we isolated three colonial lineages. Each lineage began with a smooth parent, N16961, and contained a rugose variant derived from the parent, N16961R, as well as a smooth revertant of the rugose, N16961SD. We found clear phenotypic and transcriptomic …

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Predicting Post-Procedural Complications Using Neural Networks On Mimic-Iii Data, Namratha Mohan Dec 2018

Predicting Post-Procedural Complications Using Neural Networks On Mimic-Iii Data, Namratha Mohan

LSU Master's Theses

The primary focus of this paper is the creation of a Machine Learning based algorithm for the analysis of large health based data sets. Our input was extracted from MIMIC-III, a large Health Record database of more than 40,000 patients. The main question was to predict if a patient will have complications during certain specified procedures performed in the hospital. These events are denoted by the icd9 code 996 in the individuals' health record. The output of our predictive model is a binary variable which outputs the value 1 if the patient is diagnosed with the specific complication or 0 …

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Seen But Not Heard: Personal Narratives Of Systemic Failure Within The School-To-Prison Pipeline, Kalinda Jones, Anthony Ferguson, Christian Ramirez, Michael Owens Dec 2018

Seen But Not Heard: Personal Narratives Of Systemic Failure Within The School-To-Prison Pipeline, Kalinda Jones, Anthony Ferguson, Christian Ramirez, Michael Owens

Taboo: The Journal of Culture and Education

No abstract provided.

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Thioglycosides Are Efficient Metabolic Decoys Of Glycosylation That Reduce Selectin Dependent Leukocyte Adhesion, Shuen Shiuan Wang, Xuefeng Gao, Virginia Del Solar, Xinheng Yu, Aristotelis Antonopoulos, Alan E. Friedman, Eryn K. Matich, G. Ekin Atilla-Gokcumen, Mehrab Nasirikenari, Joseph T. Lau, Anne Dell, Stuart M. Haslam, Roger A. Laine, Khushi L. Matta, Sriram Neelamegham Dec 2018

Thioglycosides Are Efficient Metabolic Decoys Of Glycosylation That Reduce Selectin Dependent Leukocyte Adhesion, Shuen Shiuan Wang, Xuefeng Gao, Virginia Del Solar, Xinheng Yu, Aristotelis Antonopoulos, Alan E. Friedman, Eryn K. Matich, G. Ekin Atilla-Gokcumen, Mehrab Nasirikenari, Joseph T. Lau, Anne Dell, Stuart M. Haslam, Roger A. Laine, Khushi L. Matta, Sriram Neelamegham

Faculty Publications

© 2018 Elsevier Ltd Small-molecule inhibitors of glycosylation can be applied in basic science studies, and clinical investigations as anti-inflammatory, anti-metastatic, and anti-viral therapies. This article demonstrates that thioglycosides represent a class of potent metabolic decoys that resist hydrolysis, and block E-selectin-dependent leukocyte adhesion in models of inflammation.

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The Dinoflagellate Cyst Genera Achomosphaera Evitt 1963 And Spiniferites Mantell 1850 In Pliocene To Modern Sediments: A Summary Of Round Table Discussions, Kenneth Neil Mertens, Nicolas Van Nieuwenhove, Pieter R. Gurdebeke, Hilal Aydin, Kara Bogus, Manuel Bringué, Barrie Dale, Stijn De Schepper, Anne De Vernal, Marianne Ellegaard, Arjen Grothe, Haifeng Gu, Martin J. Head, Maija Heikkilä, Audrey Limoges, Laurent Londeix, Stephen Louwye, Fabienne Marret, Edwige Masure, Kazumi Matsuoka, Peta J. Mudie, Aurélie Penaud, Vera Pospelova, Andrea Michelle Price, Sofia Ribeiro, André Rochon, Francesca Sangiorgi, Michael Schreck, Vladimir Torres, Serdar Uzar, Gerard J.M. Versteegh, Sophie Warny, Karin Zonneveld Dec 2018

The Dinoflagellate Cyst Genera Achomosphaera Evitt 1963 And Spiniferites Mantell 1850 In Pliocene To Modern Sediments: A Summary Of Round Table Discussions, Kenneth Neil Mertens, Nicolas Van Nieuwenhove, Pieter R. Gurdebeke, Hilal Aydin, Kara Bogus, Manuel Bringué, Barrie Dale, Stijn De Schepper, Anne De Vernal, Marianne Ellegaard, Arjen Grothe, Haifeng Gu, Martin J. Head, Maija Heikkilä, Audrey Limoges, Laurent Londeix, Stephen Louwye, Fabienne Marret, Edwige Masure, Kazumi Matsuoka, Peta J. Mudie, Aurélie Penaud, Vera Pospelova, Andrea Michelle Price, Sofia Ribeiro, André Rochon, Francesca Sangiorgi, Michael Schreck, Vladimir Torres, Serdar Uzar, Gerard J.M. Versteegh, Sophie Warny, Karin Zonneveld

Faculty Publications

© 2018, © 2018 The Author(s). Published by AASP–The Palynological Society. We present a summary of two round-table discussions held during two subsequent workshops in Montreal (Canada) on 16 April 2014 and Ostend (Belgium) on 8 July 2015. Five species of the genus Achomosphaera Evitt 1963 and 33 of the genus Spiniferites Mantell 1850 emend. Sarjeant 1970 occuring in Pliocene to modern sediments are listed and briefly described along with remarks made by workshop participants. In addition, several holotypes and topotypes are reillustrated. Three species previously assigned to Spiniferites are here considered/accepted as belonging to other genera: Impagidinium inaequalis (Wall …

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Physicochemical And Ecotoxicological Assessment Of Biochar For Environmental Application, Maria Guillermina Cantou Dec 2018

Physicochemical And Ecotoxicological Assessment Of Biochar For Environmental Application, Maria Guillermina Cantou

LSU Doctoral Dissertations

Multiple benefits of biochar conversion and utilization, including soil carbon sequestration and environmental remediation, have been proposed by researchers. Biochar may be produced from a wide array of feedstocks and pyrolytic process conditions. This influences the final biochar composition, which includes the presence of potential pollutants that could ultimately result in detrimental environmental impacts. The major purpose of this research was to improve our understanding of potential unintended effects of biochar addition to the environment either as a potential source of toxicity towards organisms or as a material influencing availabilities of other soil contaminants. Biochars were produced from ten different …

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