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Articles 1 - 30 of 88
Full-Text Articles in Life Sciences
Importance Of Refractory Ligands And Their Photodegradation For Iron Oceanic Inventories And Cycling, Christel Hassler, Damien Cabanes, Sonia Blanco-Ameijeiras, Sylvia G. Sander, Ronald Benner
Importance Of Refractory Ligands And Their Photodegradation For Iron Oceanic Inventories And Cycling, Christel Hassler, Damien Cabanes, Sonia Blanco-Ameijeiras, Sylvia G. Sander, Ronald Benner
Faculty Publications
Iron is an essential micronutrient that limits primary production in up to 40% of the surface ocean and influences carbon dioxide uptake and climate change. Dissolved iron is mostly associated with loosely characterised organic molecules, called ligands, which define key aspects of the iron cycle such as its residence time, distribution and bioavailability to plankton. Models based on in situ ligand distributions and the behaviour of purified compounds include long-lived ligands in the deep ocean, bioreactive ligands in the surface ocean and photochemical processes as important components of the iron cycle. Herein, we further characterise biologically refractory ligands in dissolved …
Testing Predictability Of Disease Outbreaks With A Simple Model Of Pathogen Biogeography, Tad Dallas, Colin J. Carlson, Timothée Poisot
Testing Predictability Of Disease Outbreaks With A Simple Model Of Pathogen Biogeography, Tad Dallas, Colin J. Carlson, Timothée Poisot
Faculty Publications
Predicting disease emergence and outbreak events is a critical task for public health professionals and epidemiologists. Advances in global disease surveillance are increasingly generating datasets that are worth more than their component parts for prediction-oriented work. Here, we use a trait-free approach which leverages information on the global community of human infectious diseases to predict the biogeography of pathogens through time. Our approach takes pairwise dissimilarities between countries’ pathogen communities and pathogens’ geographical distributions and uses these to predict country–pathogen associations. We compare the success rates of our model for predicting pathogen outbreak, emergence and re-emergence potential as a function …
Core–Shell Nanospheres Behind The Blue Eyes Of The Bay Scallop Argopecten Irradians, Olivia K. Harris, Alexandra C.N. Kingston, Caitlin S. Wolfe, Soumitra Ghoshroy, Sönke Johnsen, Daniel Isaac Speiser
Core–Shell Nanospheres Behind The Blue Eyes Of The Bay Scallop Argopecten Irradians, Olivia K. Harris, Alexandra C.N. Kingston, Caitlin S. Wolfe, Soumitra Ghoshroy, Sönke Johnsen, Daniel Isaac Speiser
Faculty Publications
The bay scallop Argopecten irradians (Mollusca: Bivalvia) has dozens of iridescent blue eyes that focus light using mirror-based optics. Here, we test the hypothesis that these eyes appear blue because of photonic nanostructures that preferentially scatter short-wavelength light. Using transmission electron microscopy, we found that the epithelial cells covering the eyes of A. irradians have three distinct layers: an outer layer of microvilli, a middle layer of random close-packed nanospheres and an inner layer of pigment granules. The nanospheres are approximately 180 nm in diameter and consist of electron-dense cores approximately 140 nm in diameter surrounded by less electron-dense shells …
Gut Dna Virome Diversity And Its Association With Host Bacteria Regulate Inflammatory Phenotype And Neuronal Immunotoxicity In Experimental Gulf War Illness, Ratanesh K. Seth, Rabia Maqsood, Ayan Mondal, Dipro Bose, Diana Kimono, Larinda A. Holland, Patricia Janulewicz Lloyd, Nancy Klimas, Ronnie Horner, Kimberly Sullivan, Efrem S. Lim, Saurabh Chatterjee
Gut Dna Virome Diversity And Its Association With Host Bacteria Regulate Inflammatory Phenotype And Neuronal Immunotoxicity In Experimental Gulf War Illness, Ratanesh K. Seth, Rabia Maqsood, Ayan Mondal, Dipro Bose, Diana Kimono, Larinda A. Holland, Patricia Janulewicz Lloyd, Nancy Klimas, Ronnie Horner, Kimberly Sullivan, Efrem S. Lim, Saurabh Chatterjee
Faculty Publications
Gulf War illness (GWI) is characterized by the persistence of inflammatory bowel disease, chronic fatigue, neuroinflammation, headache, cognitive impairment, and other medically unexplained conditions. Results using a murine model show that enteric viral populations especially bacteriophages were altered in GWI. The increased viral richness and alpha diversity correlated positively with gut bacterial dysbiosis and proinflammatory cytokines. Altered virome signature in GWI mice also had a concomitant weakening of intestinal epithelial tight junctions with a significant increase in Claudin-2 protein expression and decrease in ZO1 and Occludin mRNA expression. The altered virome signature in GWI, decreased tight junction protein level was …
Dysbiosis-Associated Enteric Glial Cell Immune-Activation And Redox Imbalance Modulate Tight Junction Protein Expression In Gulf War Illness Pathology, Diana Kimono, Sutapa Sarkar, Muayad Albadrani, Ratanesh K. Seth, Dipro Bose, Ayan Mondal, Yuxi Li, Amar N. Kar, Mitzi Nagarkatti, Prakash Nagarkatti, Kimberly Sullivan, Patricia Janulewicz, Stephen Lasley, Ronnie Horner, Nancy Klimas, Saurabh Chatterjee
Dysbiosis-Associated Enteric Glial Cell Immune-Activation And Redox Imbalance Modulate Tight Junction Protein Expression In Gulf War Illness Pathology, Diana Kimono, Sutapa Sarkar, Muayad Albadrani, Ratanesh K. Seth, Dipro Bose, Ayan Mondal, Yuxi Li, Amar N. Kar, Mitzi Nagarkatti, Prakash Nagarkatti, Kimberly Sullivan, Patricia Janulewicz, Stephen Lasley, Ronnie Horner, Nancy Klimas, Saurabh Chatterjee
Faculty Publications
About 14% of veterans who suffer from Gulf war illness (GWI) complain of some form of gastrointestinal disorder but with no significant markers of clinical pathology. Our previous studies have shown that exposure to GW chemicals resulted in altered microbiome which was associated with damage associated molecular pattern (DAMP) release followed by neuro and gastrointestinal inflammation with loss of gut barrier integrity. Enteric glial cells (EGC) are emerging as important regulators of the gastrointestinal tract and have been observed to change to a reactive phenotype in several functional gastrointestinal disorders such as IBS and IBD. This study is aimed at …
The Gut-Microbiome In Gulf War Veterans: A Preliminary Report, Patricia A. Janulewicz, Ratanesh K. Seth, Jeffrey M. Carlson, Joy Ajama, Emily Quinn, Timothy Heeren, Nancy Klimas, Steven M. Lasley, Ronnie Horner, Kimberly Sullivan, Saurabh Chatterjee
The Gut-Microbiome In Gulf War Veterans: A Preliminary Report, Patricia A. Janulewicz, Ratanesh K. Seth, Jeffrey M. Carlson, Joy Ajama, Emily Quinn, Timothy Heeren, Nancy Klimas, Steven M. Lasley, Ronnie Horner, Kimberly Sullivan, Saurabh Chatterjee
Faculty Publications
Gulf War Illness (GWI) is a chronic multi-symptom disorder affecting the central nervous system (CNS), immune and gastrointestinal (GI) systems of Gulf War veterans (GWV). We assessed the relationships between GWI, GI symptoms, gut microbiome and inflammatory markers in GWV from the Boston Gulf War Illness Consortium (GWIC). Three groups of GWIC veterans were recruited in this pilot study; GWV without GWI and no gastrointestinal symptoms (controls), GWV with GWI and no gastrointestinal symptoms (GWI-GI), GWV with GWI who reported gastrointestinal symptoms (GW+GI). Here we report on a subset of the first thirteen stool samples analyzed. Results showed significantly different …
Differential Cholinergic Modulation Of Prelimbic And Thalamic Input To The Basolateral Amygdala, Sarah Catherine Tryon
Differential Cholinergic Modulation Of Prelimbic And Thalamic Input To The Basolateral Amygdala, Sarah Catherine Tryon
Theses and Dissertations
The basolateral amygdala (BL) is critical for emotional memory acquisition and expression. It receives afferent projections from both cortical and subcortical regions that send glutamatergic transmission to the BL. This input conveys information necessary for survival, including information about one’s behavioral state and environment. How this information is integrated and processed by the BL, however, remains largely unknown. Interestingly, the BL receives the densest amount of cholinergic innervation from the basal forebrain. This acetylcholine (ACh) can modulate emotional memories, but how it modulates specific afferent inputs to the BL is unexplored. To answer this question, we used brain slice field …
Revisiting The Standard Soil Test: The Potential Of Macro- And Microbiological Measures To Improve Agricultural Health And Productivity, Gabriel Jacob Kenne
Revisiting The Standard Soil Test: The Potential Of Macro- And Microbiological Measures To Improve Agricultural Health And Productivity, Gabriel Jacob Kenne
Theses and Dissertations
The agricultural ecosystem has become the largest non-ice-covered terrestrial ecosystem on the planet and has significant direct and indirect impacts on the global health of both the environment and humanity. Recent shifts in modern agriculture are beginning to focus on the health of soil versus a focus traditionally on crop health and yield at any cost. By managing farmland regeneratively, systems are able to reverse many of the problems created by conventional land management such as erosion and unwanted nutrient runoff, and simultaneously create opportunities to move C from the atmosphere back into the soil. While the ways in which …
Chronic Kidney Disease From Non-Traditional Causes Throughout Central America, Abigail K. Watson
Chronic Kidney Disease From Non-Traditional Causes Throughout Central America, Abigail K. Watson
Senior Theses
Throughout many Central American countries, incidence of chronic kidney disease (CKD) has been on the rise. The disease mainly affects agricultural workers and differs from typical CKD. Patients in these countries often do not have preexisting conditions such as diabetes or hypertension known to be traditional causes of CKD. They also experience increased damage to the kidney tubules, rather than the glomeruli generally more heavily impacted. There has been speculation regarding the causes of CKDnT (chronic kidney disease of nontraditional causes), but no consensus has been reached. Two major hypotheses to explain the high prevalence among Central American sugarcane workers …
Microcystin Exposure And Liver Injury Outcomes In Nafld, Muayad Albadrani
Microcystin Exposure And Liver Injury Outcomes In Nafld, Muayad Albadrani
Theses and Dissertations
Non-alcoholic fatty liver disease (NAFLD) is an emerging worldwide pandemic which is highly prevalent among obese individuals including children and adults. In a NAFLD condition, exposure to environmental contaminants or toxins can act as a second/ multiple hit, which leads to the progression of simple steatosis to NASH and ultimately may result in liver cirrhosis. With climate change today, elevated levels of microcystins are an emerging problem in fresh water bodies, which are a source of drinking water. Individuals are therefore at risk of exposure to microcystin through consuming contaminated water. In the progression of NAFLD from one clinical stage …
Reproducibility And The Effects Of Exercise On The Endurance Index, Michael Dean Smith, Jr.
Reproducibility And The Effects Of Exercise On The Endurance Index, Michael Dean Smith, Jr.
Theses and Dissertations
Background: The Endurance Index (EI%) is a method to objectively assess a muscle’s ability to resist fatigue. The purpose of these studies was to determine the reproducibility of the EI% and determine the influence of muscular fatigue on the EI%. Methods Study 1: sixteen apparently healthy participants (18-30yrs) completed three nonconsecutive visits each with 3 bouts of 5-minute electrical muscle stimulations (EMS) and accelerometer-based mechanomyography (aMMG) of the vastus lateralis at 4 Hz and low amperage (25-35mA) on the hamstrings of the dominant leg; peak torque was measured at each visit. Study 2: fifteen apparently healthy participants (ages 18-30yrs) …
Assessing The Competitive Advantage Of Carbonic Anhydrase In Estuarine Microalgae Through Removed Enzymatic Activity, Eilea R. Knotts
Assessing The Competitive Advantage Of Carbonic Anhydrase In Estuarine Microalgae Through Removed Enzymatic Activity, Eilea R. Knotts
Theses and Dissertations
Carbon concentrating mechanisms (CCMs) are used by photoautotrophs to overcome possible limitations in carbon acquisition but the competitive strategies and efficiencies of these mechanisms among photosynthesizers can be variable. The diversity in carbon acquisition abilities establishes the potential for alterations in community structure with shifting carbon concentrations. Given the role of phytoplankton and benthic microalgae (BMA) in the trophodynamics of estuaries, understanding the mechanisms of carbon acquisition in these systems is important in predicting how primary productivity and nutrient cycling might change in response to increasing concentrations of atmospheric CO2. Our approach to investigate whether induced carbon limitation would show …
Population And Kin Structure Of Hawksbill Turtles: Insights On Natal Homing Precision, Time To Maturity And The Male Component Of The Breeding Population, Kathryn Erin Levasseur
Population And Kin Structure Of Hawksbill Turtles: Insights On Natal Homing Precision, Time To Maturity And The Male Component Of The Breeding Population, Kathryn Erin Levasseur
Theses and Dissertations
Marine turtles have long endured population declines and face a growing number of contemporary threats, highlighting the need for population assessments and conservation action. Research on these species, however, remains a challenge due to complex and extensive oceanic life cycles that hinder direct observation. The pelagic, post-hatchling life stage is particularly difficult to track, preventing empirical research of fundamental behavior and life history traits such as natal homing precision and time to sexual maturity. Also, much of our current knowledge of marine turtles comes from nesting females and hatchlings, stages of the life cycle that are easy to observe. Far …
Salt Marsh Health And Biomass Responses To A Changing Environment, Gwen Joelle Miller
Salt Marsh Health And Biomass Responses To A Changing Environment, Gwen Joelle Miller
Theses and Dissertations
Coastal salt marshes are important ecosystems not only for their aesthetic beauty but also for their ecosystem services that they provide including improving water quality, providing protection from storm surges and hurricanes, and carbon sequestration. With climate change, including drought, warmer temperatures and sea-level rise, these systems are going to be impacted. Understanding how salt marshes will respond, or already have responded, to climate change will help us be better prepared for the future. By scripting a model to project how marshes may migrate with sea-level rise, I discover that salt marshes within Beaufort and Jasper counties, South Carolina will …
Evidence For P53-Mediated Induction Of Wrap53a In Response To Dna Damage, Anne Shelton Hucks
Evidence For P53-Mediated Induction Of Wrap53a In Response To Dna Damage, Anne Shelton Hucks
Theses and Dissertations
p53 is a powerful tumor suppressor mutated in approximately half of all cancers. Its mRNA is stabilized post-transcriptionally via complementary base pairing with the transcript of its antisense gene, WRAP53α; without this interaction, p53 protein cannot accumulate enough to carry out its many functions related to apoptosis, cell cycle arrest, and DNA damage repair. Previous studies have shown that WRAP53α is induced in response to DNA damage. The purpose of this study was to determine which transcription factors might be responsible for this induction. After identifying three putative p53 binding sites on the WRAP53α promoter, we used chromatin immunoprecipitation …
Distribution And Abundance Of Vibrio Parahaemolyticus In Surficial Estuarine Sediment From North Inlet, Sc, Usa, India Briana Gartmon
Distribution And Abundance Of Vibrio Parahaemolyticus In Surficial Estuarine Sediment From North Inlet, Sc, Usa, India Briana Gartmon
Theses and Dissertations
Vibrio parahaemolyticus is a ubiquitous coastal organism that causes gastroenteritis (vibriosis) after ingestion of mishandled or undercooked seafood. Cases of vibriosis have increased rapidly in the past decade. V. parahaemolyticus densities have historically been associated with an increase in sea surface water temperatures, but recent shellfish bed closures in fall and winter months in cooler regions (the Baltic Sea, the Pacific NW, and New England) suggest that there may be additional environmental parameters that affect densities of V. parahaemolyticus. The vertical distribution of V. parahaemolyticus was assessed in the pristine North Inlet Estuary (SC, USA). The goal of this …
Study Of The Inflammatory And Fibrotic Pathology In The Gut Following Microcystin Exposure Under Conditions Of Non-Alcoholic Fatty Liver Disease., Sutapa Sarkar
Theses and Dissertations
Non-alcoholic fatty liver disease (NAFLD) has become a global pandemic with increased risks of chronic inflammation in obese and elderly population. It has become a major public health concern due to the unavailability of proper therapeutic approaches. NAFLD is a condition of the liver involving wide spectrum of events including accumulation of fat in the liver and inflammation, which can progress to a fibrotic and cirrhotic phenotype, often termed as non-alcoholic steatohepatitis (NASH). In this backdrop, exposure to environmental toxins from harmful algal blooms could prove detrimental to the overweight, obese or elderly population. NAFLD not only affects the liver …
Distribution And Dispersal Potential Of The Endemic Tree Loblolly Bay (Gordonia Lasianthus) In The Southeastern United States Coastal Plain And Implications For Conservation In The Context Of Forecast Climate Scenarios., Herrick Hermann Klaus Brown
Distribution And Dispersal Potential Of The Endemic Tree Loblolly Bay (Gordonia Lasianthus) In The Southeastern United States Coastal Plain And Implications For Conservation In The Context Of Forecast Climate Scenarios., Herrick Hermann Klaus Brown
Theses and Dissertations
Plant communities in the Southeastern United States Coastal Plain constitute a rich assemblage of species from neighboring floristic provinces and include over 1,000 species endemic to the region. Conservation of these unique landscapes requires a better understanding of potential impacts from human activity and a changing climate. As a model species, the endemic tree Loblolly Bay (Gordonia lasianthus) is representative of Carolina Bays, pocosins, and isolated wetland habitats that accentuate Longleaf Pine ecosystems which dominate the focus area. Seed-dispersal events in Loblolly Bay are limited to periods of relatively low humidity primarily during the months of October to December, and …
Investigating The Relationship Of Copd, Lung Cancer, And Polycyclic Aromatic Hydrocarbons From Ambient Air Pollution, Daniel John Kilpatrick
Investigating The Relationship Of Copd, Lung Cancer, And Polycyclic Aromatic Hydrocarbons From Ambient Air Pollution, Daniel John Kilpatrick
Theses and Dissertations
Polycylic aromatic hydrocarbons (PAHs) are a group of chemically-related compounds with a well-established body of evidence of adverse human health impacts. Additionally, there is a growing area of research on the health outcomes following PAH exposure via air pollution, specifically with chronic obstructive pulmonary disorder (COPD) and lung cancer. The purpose of this dissertation was to investigate the strength of associations among PAHs, COPD, and lung cancer from ambient (outdoor) air pollution. The first objective was to determine if there is a potential environmental link among PAHs, COPD, and lung cancer occurrence among nonsmokers using data from the National Health …
The Effect Of Patient Financial Liability On Physical Therapy Utilization And Patient Reported Outcomes For Patients With Low Back Pain: An Instrumental Variable Analysis, Adam D. Lutz
Theses and Dissertations
Low back pain (LBP) is the most common orthopedic complaint managed by physical therapists in the United States. Insurance plans that require greater patient financial liability per physical therapy visit are thought to disincentivize participation in recommended physical therapy plans of care. The primary purpose of this investigation was to use instrumental variable regression to investigate the effect of insurancemediated patient financial liability per visit on physical therapy visit count and functional patient reported outcomes. The secondary purpose of the study was to examine the generalizability of results to the broader excluded patient population—and beyond to patients that seek physical …
Larval Fish Mortality And Vertical Chlorophyll Structures: Reexamination Of The Stable Ocean Hypothesis In The Southern California Current, Brendan D. Turley
Larval Fish Mortality And Vertical Chlorophyll Structures: Reexamination Of The Stable Ocean Hypothesis In The Southern California Current, Brendan D. Turley
Theses and Dissertations
The natural mortality of fishes is an important component for understanding population dynamics. The larval stages of pelagic fishes living in the open ocean are particularly vulnerable to high rates of mortality, and fluctuations in these rates are thought to exert a large influence on the number of fish maturing into the spawning population. Early stage larval fishes are thought to undergo a critical period after hatching when they must find food or succumb to starvation. While the availability of suitable food for larval fishes is, on average, too low in the open ocean to support survival, patchy distributions of …
Rompi-Cdsa: Ring-Opening Metathesis Polymerization-Induced Crystallization-Driven Self-Assembly Of Metallo-Block Copolymers, Ye Sha, Md Anisur Rahman, Tianyu Zhu, Yujin Cha, C Wayne Mcalister, Chuanbing Tang
Rompi-Cdsa: Ring-Opening Metathesis Polymerization-Induced Crystallization-Driven Self-Assembly Of Metallo-Block Copolymers, Ye Sha, Md Anisur Rahman, Tianyu Zhu, Yujin Cha, C Wayne Mcalister, Chuanbing Tang
Faculty Publications
Polymerization-induced self-assembly (PISA) and crystallization-driven self-assembly (CDSA) are among the most prevailing methods for block copolymer self-assembly. Taking the merits of scalability of PISA and dimension control of CDSA, we report one-pot synchronous PISA and CDSA ring-opening metathesis polymerization (ROMP) to prepare nano-objects based on a crystalline poly(ruthenocene) motif. We denote this self-assembly methodology as ROMPI-CDSA to enable a simple, yet robust approach for the preparation of functional nanomaterials.
Multilevel Analysis In Rural Cancer Control: A Conceptual Framework And Methodological Implications, Tine Verreet, Cory J. Weaver, Hiromu Hino, Masahiko Hibi, Fabienne E. Poulain
Multilevel Analysis In Rural Cancer Control: A Conceptual Framework And Methodological Implications, Tine Verreet, Cory J. Weaver, Hiromu Hino, Masahiko Hibi, Fabienne E. Poulain
Faculty Publications
Mitochondria are abundantly detected at the growth cone, the dynamic distal tip of developing axons that directs growth and guidance. It is, however, poorly understood how mitochondrial dynamics relate to growth cone behavior in vivo, and which mechanisms are responsible for anchoring mitochondria at the growth cone during axon pathfinding. Here, we show that in retinal axons elongating along the optic tract in zebrafish, mitochondria accumulate in the central area of the growth cone and are occasionally observed in filopodia extending from the growth cone periphery. Mitochondrial behavior at the growth cone in vivo is dynamic, with mitochondrial positioning …
Table Of Contents
Journal of the South Carolina Academy of Science
No abstract provided.
A Comparison Of Lung Function Values Among A Scuba Diver Population And In Comparison To A Non-Diver Population, Gabriel C. Hutson, Jeremy D. Rentsch, Erin M. Eaton
A Comparison Of Lung Function Values Among A Scuba Diver Population And In Comparison To A Non-Diver Population, Gabriel C. Hutson, Jeremy D. Rentsch, Erin M. Eaton
Journal of the South Carolina Academy of Science
The purpose of this study was to investigate possible correlations between lung function values (PEF, IRV, ERV, and FVC) among a diver population, as well as in comparison to a non-diver population. Independent variables for both populations were biological sex, age, and weekly physical activity. Independent variables for the diver population were dive tenure, number of logged dives, certification level, and gas mixture used. A spirometry test was conducted to collect lung function values of both populations. Data from this study suggest a statistically significant relationship between diver and non-diver sex and FVC, diver age and ERV, diver sex and …
The Effect Of Combination Birth Control Pills On Heart Rate, Blood Pressure, Body Weight And Body Temperature, Scarlett E. Leigh, Marlee B. Marsh
The Effect Of Combination Birth Control Pills On Heart Rate, Blood Pressure, Body Weight And Body Temperature, Scarlett E. Leigh, Marlee B. Marsh
Journal of the South Carolina Academy of Science
Birth control pills are the most popular method of birth control for women. In the United States of America, roughly 10.2 million women use some type of birth control pills. The two main types of birth control pills available to women are combination pills, which contain both estrogen and progestin, and progestin-only birth control pills that do not contain any estrogen. Numerous biological research studies have been performed studying the effects of combination birth control pills on blood pressure and body weight. However, few studies have examined blood pressure combined with both heart rate, body temperature, and body weight to …
Identification Of Bacterial Isolates Originating From The Human Hand, Leisa M. Rauch, Annette M. Golonka, Eran S. Kilpatrick
Identification Of Bacterial Isolates Originating From The Human Hand, Leisa M. Rauch, Annette M. Golonka, Eran S. Kilpatrick
Journal of the South Carolina Academy of Science
The human body provides habitat for a diversity of bacterial species that are part of the normal human microbiota. Identification of various members of the normal microbiota to the species level requires a combination of biological staining procedures, biochemical tests, and molecular techniques. In this experiment, ten bacterial isolates originating from the hands of nine students and one faculty member at USC Salkehatchie were identified. Classification to a general taxonomic group was accomplished with standard staining and biochemical tests. Sequences for the 16S ribosomal RNA section of DNA for each isolate were analyzed with BLAST to generate a list of …
A Comprehensive Evaluation Of Predictive Performance Of 33 Species Distribution Models At Species And Community Levels, Anna Norberg, Nerea Abrego, F. Guillaume Blanchet, Frederick R. Adler, Barbara J. Anderson, Jani Anttila, Miguel B. Araújo, Tad Dallas, David Dunson, Jane Elith, Scott D. Foster, Richard Fox, Janet Franklin, William Godsoe, Antoine Guisan, Bob O'Hara, Nicole A. Hill, Robert D. Holt, Francis K.C. Hui, Magne Husby, John Atle Kålås, Aleksi Lehikoinen, Miska Luoto, Heidi K. Mod, Graeme Newell, Ian Renner, Tomas Roslin, Janne Soininen, Wilfried Thuiller, Jarno Vanhatalo, David Warton, Matt White, Niklaus E. Zimmermann, Dominque Gravel, Otso Ovaskainen
A Comprehensive Evaluation Of Predictive Performance Of 33 Species Distribution Models At Species And Community Levels, Anna Norberg, Nerea Abrego, F. Guillaume Blanchet, Frederick R. Adler, Barbara J. Anderson, Jani Anttila, Miguel B. Araújo, Tad Dallas, David Dunson, Jane Elith, Scott D. Foster, Richard Fox, Janet Franklin, William Godsoe, Antoine Guisan, Bob O'Hara, Nicole A. Hill, Robert D. Holt, Francis K.C. Hui, Magne Husby, John Atle Kålås, Aleksi Lehikoinen, Miska Luoto, Heidi K. Mod, Graeme Newell, Ian Renner, Tomas Roslin, Janne Soininen, Wilfried Thuiller, Jarno Vanhatalo, David Warton, Matt White, Niklaus E. Zimmermann, Dominque Gravel, Otso Ovaskainen
Faculty Publications
A large array of species distribution model (SDM) approaches has been developed for explaining and predicting the occurrences of individual species or species assemblages. Given the wealth of existing models, it is unclear which models perform best for interpolation or extrapolation of existing data sets, particularly when one is concerned with species assemblages. We compared the predictive performance of 33 variants of 15 widely applied and recently emerged SDMs in the context of multispecies data, including both joint SDMs that model multiple species together, and stacked SDMs that model each species individually combining the predictions afterward. We offer a comprehensive …
Lignin Biopolymers In The Age Of Controlled Polymerization, Mitra S. Ganewatta, Hasala N. Lokupitiya, Chuanbing Tang
Lignin Biopolymers In The Age Of Controlled Polymerization, Mitra S. Ganewatta, Hasala N. Lokupitiya, Chuanbing Tang
Faculty Publications
Polymers made from natural biomass are gaining interest due to the rising environmental concerns and depletion of petrochemical resources. Lignin isolated from lignocellulosic biomass is the second most abundant natural polymer next to cellulose. The paper pulp process produces industrial lignin as a byproduct that is mostly used for energy and has less significant utility in materials applications. High abundance, rich chemical functionalities, CO2 neutrality, reinforcing properties, antioxidant and UV blocking abilities, as well as environmental friendliness, make lignin an interesting substrate for materials and chemical development. However, poor processability, low reactivity, and intrinsic structural heterogeneity limit lignins′ polymeric applications …
Novel Salicylic Acid Analogs Induce A Potent Defense Response In Arabidopsis, Ian Arthur Palmer, Huan Chen, Jian Chen, Ming Chang, Min Li, Fengquan Liu, Zheng Qing Fu
Novel Salicylic Acid Analogs Induce A Potent Defense Response In Arabidopsis, Ian Arthur Palmer, Huan Chen, Jian Chen, Ming Chang, Min Li, Fengquan Liu, Zheng Qing Fu
Faculty Publications
The master regulator of salicylic acid (SA)-mediated plant defense, NPR1 (NONEXPRESSER OF PR GENES 1) and its paralogs NPR3 and NPR4, act as SA receptors. After the perception of a pathogen, plant cells produce SA in the chloroplast. In the presence of SA, NPR1 protein is reduced from oligomers to monomers, and translocated into the nucleus. There, NPR1 binds to TGA, TCP, and WRKY transcription factors to induce expression of plant defense genes. A list of compounds structurally similar to SA was generated using ChemMine Tools and its Clustering Toolbox. Several of these analogs can induce SA-mediated defense and inhibit …