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Articles 1 - 30 of 169
Full-Text Articles in Life Sciences
2009 South Carolina Water Use, Alexander P. Butler
2009 South Carolina Water Use, Alexander P. Butler
S.C. Water Resources Conference
2010 South Carolina Water Resource Conference. Informing strategic water planning to address natural resource, community and economic challenges.
Ground-Water Availability In The Atlantic Coastal Plain Of North And South Carolina, Bruce Campbell, Matt Petkewich, Alissa Coes, Jason Fine
Ground-Water Availability In The Atlantic Coastal Plain Of North And South Carolina, Bruce Campbell, Matt Petkewich, Alissa Coes, Jason Fine
S.C. Water Resources Conference
2010 South Carolina Water Resource Conference. Informing strategic water planning to address natural resource, community and economic challenges.
Investigation Of Water Quality In The Ashepoo-Combahee-Edisto (Ace) Basin Nerr: A Gis Approach, Jordan Felber, Larissa M. Brock, Derk Bergquist, Dianne Greenfield, Charles Keppler
Investigation Of Water Quality In The Ashepoo-Combahee-Edisto (Ace) Basin Nerr: A Gis Approach, Jordan Felber, Larissa M. Brock, Derk Bergquist, Dianne Greenfield, Charles Keppler
S.C. Water Resources Conference
2010 South Carolina Water Resource Conference. Informing strategic water planning to address natural resource, community and economic challenges.
Real-Time Water Quality Monitoring Using Remote Sensing, Clark Chewning, Charles Privette, Dave White, Cal Sawyer
Real-Time Water Quality Monitoring Using Remote Sensing, Clark Chewning, Charles Privette, Dave White, Cal Sawyer
S.C. Water Resources Conference
2010 South Carolina Water Resource Conference. Informing strategic water planning to address natural resource, community and economic challenges.
Storm Drain Marking: Making A Difference One Drain At A Time, Lauren Greoski, Kelly Muench
Storm Drain Marking: Making A Difference One Drain At A Time, Lauren Greoski, Kelly Muench
S.C. Water Resources Conference
2010 South Carolina Water Resource Conference. Informing strategic water planning to address natural resource, community and economic challenges.
Communicating The Certainty Of Drought Data, Jay Fowler
Communicating The Certainty Of Drought Data, Jay Fowler
S.C. Water Resources Conference
2010 South Carolina Water Resource Conference. Informing strategic water planning to address natural resource, community and economic challenges.
Statistical Inference Of A Case Study In China: Active Phosphate Removal From Eutrophic Water, June Luo, Ling Zu
Statistical Inference Of A Case Study In China: Active Phosphate Removal From Eutrophic Water, June Luo, Ling Zu
S.C. Water Resources Conference
2010 South Carolina Water Resource Conference. Informing strategic water planning to address natural resource, community and economic challenges.
An Evaluation Of Changes In Water Conservation Habits Of Homeowners In The Upstate Of South Carolina, Marguerite Porter, George Dickert
An Evaluation Of Changes In Water Conservation Habits Of Homeowners In The Upstate Of South Carolina, Marguerite Porter, George Dickert
S.C. Water Resources Conference
2010 South Carolina Water Resource Conference. Informing strategic water planning to address natural resource, community and economic challenges.
Drought And The Decline Of South Carolina Blue Crabs, Kirk Parmenter, Michael Childress
Drought And The Decline Of South Carolina Blue Crabs, Kirk Parmenter, Michael Childress
S.C. Water Resources Conference
2010 South Carolina Water Resource Conference. Informing strategic water planning to address natural resource, community and economic challenges.
Survival And Behavior Of Pathogenic Bacteria Within Sediment Ponds, Elizabeth Tempel, Charles Privette, Cal Sawyer, John Hayes
Survival And Behavior Of Pathogenic Bacteria Within Sediment Ponds, Elizabeth Tempel, Charles Privette, Cal Sawyer, John Hayes
S.C. Water Resources Conference
2010 South Carolina Water Resource Conference. Informing strategic water planning to address natural resource, community and economic challenges.
Calico Creek Stabilization, Kelli Resler, Elizabeth Tempel, Erin Daly, Charles Privette, Calvin Sawyer
Calico Creek Stabilization, Kelli Resler, Elizabeth Tempel, Erin Daly, Charles Privette, Calvin Sawyer
S.C. Water Resources Conference
2010 South Carolina Water Resource Conference. Informing strategic water planning to address natural resource, community and economic challenges.
Determining Environmental Flow Regime In The Pee Dee Watershed, Sc, Zachary T. Smoot, Anand D. Jayakaran, Dara M. Park, Daniel R. Hitchcock, Alex T. Chow, Elizabeth Osier
Determining Environmental Flow Regime In The Pee Dee Watershed, Sc, Zachary T. Smoot, Anand D. Jayakaran, Dara M. Park, Daniel R. Hitchcock, Alex T. Chow, Elizabeth Osier
S.C. Water Resources Conference
2010 South Carolina Water Resource Conference. Informing strategic water planning to address natural resource, community and economic challenges.
South Carolina State Water Assessment - Second Edition, Andrew Wachob
South Carolina State Water Assessment - Second Edition, Andrew Wachob
S.C. Water Resources Conference
2010 South Carolina Water Resource Conference. Informing strategic water planning to address natural resource, community and economic challenges.
Development Of A Methodology And Guidebook For The Identification Of Ephemeral, Intermittent And Perennial Streams In South Carolina, William R. Wenerick
Development Of A Methodology And Guidebook For The Identification Of Ephemeral, Intermittent And Perennial Streams In South Carolina, William R. Wenerick
S.C. Water Resources Conference
2010 South Carolina Water Resource Conference. Informing strategic water planning to address natural resource, community and economic challenges.
Evaluating Snow Microbial Assemblages, Jenny Lam, Jessica K. Guy, Ryan Brock, Matt Oates, Alison E. Murray
Evaluating Snow Microbial Assemblages, Jenny Lam, Jessica K. Guy, Ryan Brock, Matt Oates, Alison E. Murray
Undergraduate Research Opportunities Program (UROP)
Psychrophiles are organisms that grow optimally below 20C (1). The US Great Basin is home to many mountain peaks with an abundance of alpine snow environments perfect for psychrophilic habitation. We analyzed samples from three different locations, Wheeler Peak, Pacific Crest Trail, and Mount Conness, characterizing and comparing the psychrophilic communities at varying depth intervals in the snow. Polymerase chain reaction (PCR) and denaturing gradient gel electrophoresis (DGGE) showed no notable difference in community structure with depth, but there was a distinct difference when comparing different snow environments (i.e. shaded vs. full sun exposure). The chlorophyll concentration decreased as the …
Evaluation Of Virb Binding Site Contribution To The Regulation Of The Icsp Promoter In Shigella Flexneri, Juan C. Duhart, Maria I. Castellanos, Helen J. Wing
Evaluation Of Virb Binding Site Contribution To The Regulation Of The Icsp Promoter In Shigella Flexneri, Juan C. Duhart, Maria I. Castellanos, Helen J. Wing
Undergraduate Research Opportunities Program (UROP)
Shigella species are gram-negative, rod-shaped bacteria that are closely related to Escherichia coli. Virulent Shigella spp. are intracellular pathogens that invade, replicate and spread through epithelial cells of the lower intestine and cause bacillary dysentery in humans. This disease is characterized by a robust inflammatory response that results in fever, abdominal pain, and bloody diarrhea (3). According to the CDC, approximately 14,000 cases are reported each year in the United States alone. This number however, does not reflect the actual incidence of this disease as many cases go unreported. The molecular pathogenesis of these bacteria lies in the large virulence …
Effects Of Starvation Selection On Nutrient Allocation And Fecundity In Drosophila Melanogaster, Bryan Penalosa, Allen Gibbs
Effects Of Starvation Selection On Nutrient Allocation And Fecundity In Drosophila Melanogaster, Bryan Penalosa, Allen Gibbs
Undergraduate Research Opportunities Program (UROP)
The life cycle of holometabolous insects is distinctly divided into three life stages: the larval, pupal, and adult stages. During the larval stage, animals accumulate energy stores in the larval fat body to be later used in the pupal and adult stages. I determined how this accumulated energy is stored in adult Drosophila melanogaster that have been selected for resistance to starvation for >40 generations. I assayed carbohydrates, proteins, and lipids and found that 0 day old starvation selected flies have almost four times as much lipid content, twice as much carbohydrate, and a fairly equal amount of protein versus …
Modifying The Amino Acid Sequence In The Surface-Exposed Loops Of The Omptin Family Of Proteins To Determine Their Effect On Function, Natiera Magnuson, Eun-Hae Kim, Christian Ross, Helen J. Wing
Modifying The Amino Acid Sequence In The Surface-Exposed Loops Of The Omptin Family Of Proteins To Determine Their Effect On Function, Natiera Magnuson, Eun-Hae Kim, Christian Ross, Helen J. Wing
Undergraduate Research Opportunities Program (UROP)
The omptin family of proteins consists of proteases which lie in the outer membrane of some gram-negative, pathogenic bacteria such as Escherichia coli (OmpT), Shigella flexneri (IcsP), Salmonella typhimurium (PgtE), and Yersinia pestis (Pla). These proteases are highly conserved, sharing approximately 50% sequence identity and a β-barrel shape (fig. 1D). The differences in the structure of these four proteins are in the surface-exposed loop region surrounding the active site, but not in the active site itself [4]. These proteases are important for the virulence of many bacteria. For example, OmpT of E. coli cleaves an antimicrobial peptide secreted by epithelial …
Ubiquitin Dependent Proteolysis In The Frozen Wood Frog, Michael Ulrich, Ken Storey, Frank Van Breukelen
Ubiquitin Dependent Proteolysis In The Frozen Wood Frog, Michael Ulrich, Ken Storey, Frank Van Breukelen
Undergraduate Research Opportunities Program (UROP)
Wood frogs (Rana sylvatica) freeze during the winter. One might presume that homeostatic processes like protein synthesis and degradation cease during freezing. However, few data are available. In collaboration with Dr. Ken Storey (Carelton University, Canada), we are investigating the primary mode of proteolysis in wood frogs representing different points of the freeze-thaw cycle.
Construction And Use Of A Calorimeter To Estimate The Anaerobic Contributions To Metabolism, Mark S. Burger, Frank Van Breukelen
Construction And Use Of A Calorimeter To Estimate The Anaerobic Contributions To Metabolism, Mark S. Burger, Frank Van Breukelen
Undergraduate Research Opportunities Program (UROP)
Metabolism is derived from the Greek word metabole which translates to change. Metabolism is the sum total of chemical reactions that take place in an organism. Some reactions are exothermic (heat-producing) whereas others are endothermic (heat-absorbing). By measuring heat production (calorimetry), one can estimate metabolic rate. Historically, such measurements of direct calorimetry were difficult. As a result, most studies utilize indirect calorimetry wherein oxygen consumption and/or carbon dioxide production are measured. One limitation to this approach is that anaerobic metabolism is ignored. No commercially-available calorimeter is available for whole animal metabolic studies. We hypothesized that small rodent hibernators may experience …
Similarity Of Climate Change Data For Antarctica And Nevada, Corbin Benally, Shahram Latifi, Karletta Chief
Similarity Of Climate Change Data For Antarctica And Nevada, Corbin Benally, Shahram Latifi, Karletta Chief
Undergraduate Research Opportunities Program (UROP)
The correlation between temperature and carbon dioxide concentration in the past one hundred years is studied. Separate graphs containing data from Vostok, Antarctica and the Mojave desert/mountain west (Nevada region) are presented. Using data obtained from these graphs, an attempt is made to explain the results and investigate the similarity of these results for Antarctica and Nevada. The importance of this study lies in the fact that if data show the same trend in the two regions, many findings for climate change in Antarctica may readily be validated and employed for Nevada.
The Effects Of The Ground Reaction Force On The Muscle-Tendon Systems About Guinea Pig Joints, Theresa Schill, Kevin Mailland, David V. Lee
The Effects Of The Ground Reaction Force On The Muscle-Tendon Systems About Guinea Pig Joints, Theresa Schill, Kevin Mailland, David V. Lee
Undergraduate Research Opportunities Program (UROP)
Each limb of the limb joints of a quadruped is used differently during locomotion, and it is necessary to recognize the mechanical role each plays. The effects of the ground reaction force on the ankle, knee, and hip joints of Hartley albino guinea pigs were studied in uphill, downhill, and level situations to determine the spring-like capacity of the muscle-tendon systems that act about the limb joints.
Phylogenetic Studies Of Newly Isolated Freshwater Magnetospirilla Using Cbb And Mam Genes, Nathan Viloria, Christopher T. Lefevre, Dennis A. Bazylinski
Phylogenetic Studies Of Newly Isolated Freshwater Magnetospirilla Using Cbb And Mam Genes, Nathan Viloria, Christopher T. Lefevre, Dennis A. Bazylinski
Undergraduate Research Opportunities Program (UROP)
The phylogeny and general relatedness of prokaryotes is determined by comparisons of the sequences of rRNA genes, most commonly the 16S rRNA gene. Comparisons between other gene sequences have been used for this purpose and some have supported conclusions from 16S rRNA genes while others have not. In this study, 13 new magnetospirilla were phylogenetically characterized using the sequences of the 16S rRNA gene as well as the genes for forms I and II ribulose-1,5-bisphosphate carboxylase/oxygenase (RubisCO) (cbbL and cbbM, respectively) and for two magnetosome membrane proteins unique to magnetotactic bacteria, mamJ and mamK. Polymerase chain reaction (PCR) with degenerate …
Antibiotic Resistance In Bacillus Subtilis As Affected By Transcriptional Derepression And The Stringent Response, Brandon Eisinger, Ronald E. Yasbin, Eduardo A. Robleto
Antibiotic Resistance In Bacillus Subtilis As Affected By Transcriptional Derepression And The Stringent Response, Brandon Eisinger, Ronald E. Yasbin, Eduardo A. Robleto
Undergraduate Research Opportunities Program (UROP)
Bacterial cells under conditions of starvation or prolonged non-lethal selective pressures accumulate mutations in highly transcribed genes. This process is part of cellular programs to increase genetic diversity in conditions of stress, also known as stationary phase or stress-induced mutagenesis. This experiment investigated mutation frequencies for antibiotic resistance as affected by the stringent response. The stringent response is a global cellular process that initiates at the cessation of growth and mediates changes in gene expression that repress synthesis of ribosome components. We used Bacillus subtilis strains that differ in RelA proficiency. The relA gene controls the synthesis of (p)ppGpp, the …
The Small Regulatory Rna Ryhb Regulates Icsa Expression In Shigella Flexneri, Nick Egan, Helen J. Wing
The Small Regulatory Rna Ryhb Regulates Icsa Expression In Shigella Flexneri, Nick Egan, Helen J. Wing
Undergraduate Research Opportunities Program (UROP)
Shigella flexneri is a gram negative non-motile, non-spore forming, rod-shaped bacterium responsible for bacillary dysentery in humans. The master regulator, VirF, initiates a cascade of virulence gene activation by acting as a transcription factor for the gene encoding the global regulator, VirB (1). Production of VirB is also negatively regulated by the regulatory small RNA (sRNA), RyhB 2). Regulatory sRNAs are untranslated RNA molecules involved in the regulation of both transcription and translation. RyhB, a 90 nt sRNA, was first identified in E. coli and subsequently found in all Shigella species. In Shigella this sRNA is maximally expressed in response …
Examination Of Germination Receptors Of B. Subtilis And B. Megaterium, Shruti Patel, Alessio Luinetti, Ernesto Abel-Santos, Eduardo Robleto
Examination Of Germination Receptors Of B. Subtilis And B. Megaterium, Shruti Patel, Alessio Luinetti, Ernesto Abel-Santos, Eduardo Robleto
Undergraduate Research Opportunities Program (UROP)
Many bacterial species including those in the Bacilli group form spores as a mechanism to survive harsh conditions such as extreme temperature, radiation, chemicals, and nutrient starvation. By forming spores, they can remain metabolically dormant for an extended period and revert to their vegetative form when environment becomes favorable. This resumption of metabolism and growth is marked by a process called germination that is triggered by exogenous nutrients such as amino acids, sugars, and nucleotides. The (Ger) germination receptors that are postulated to respond to these germinants, in the case of B. subtilis and B. megaterium, are a complex of …
Impact Of Historical Climate Change On The Genetic Structure Of The Great Basin Pocket Mouse, Perognathus Parvus, Ashwitha Francis, Mallory E. Eckstut, Brett R. Riddle
Impact Of Historical Climate Change On The Genetic Structure Of The Great Basin Pocket Mouse, Perognathus Parvus, Ashwitha Francis, Mallory E. Eckstut, Brett R. Riddle
Undergraduate Research Opportunities Program (UROP)
The dynamics of genetic patterns, such as genetic differentiation within and between populations and the geographic distribution of genetic lineages, are often influenced by historical events (such as climatic changes) that have substantially impacted regional biodiversity (the study of phylogeography; Avise, 20001). The magnitude of genetic differentiation among populations is often increased if suitable habitat is reduced, because there is restricted migration among populations. When migration is restricted, the populations may become genetically differentiated from conspecific populations and, over time, may become independent lineages that follow distinctive evolutionary trajectories (Stebbins, 19523; Nevo & Beiles, 19892; Thomas et al., 19984). In …
3d Micro-Mr And Micro-Ct Models For Determining In-Vivo Function In The Guinea Pig Knee Model Of Osteoarthritis (Oa), Kristoffer W. Dean
3d Micro-Mr And Micro-Ct Models For Determining In-Vivo Function In The Guinea Pig Knee Model Of Osteoarthritis (Oa), Kristoffer W. Dean
Undergraduate Research Opportunities Program (UROP)
Osteoarthritis (OA) is a debilitating disease that affects an estimated 27 million adults in the United States. OA causes damage to cartilage in the joints resulting in bones that rub together. This creates pain, swelling, loss of motion of the joint, and bone spurs. As the number of adults above 65 grows (an estimated 72 million people by 2030) even more people will be at high risk for OA. It is the most common type of arthritis by far yet very little is known about it including relationships between joint structure and function. In 2004, the NIH created the Osteoarthritis …
Genetically Modifying Arabidopsis Thaliana With A Gene From Drought-Tolerant Xerophyte Larrea Tridentata (Creosote Bush), Norris Lam, Liyuan A. Zhang, Lingkun Gu, Qingxi J. Shen
Genetically Modifying Arabidopsis Thaliana With A Gene From Drought-Tolerant Xerophyte Larrea Tridentata (Creosote Bush), Norris Lam, Liyuan A. Zhang, Lingkun Gu, Qingxi J. Shen
Undergraduate Research Opportunities Program (UROP)
L. tridentata, or desert creosote bush, is a xerophytic C3 plant native to the American Southwest, and is known to have evolutionarily developed sophisticated cellular mechanisms to deal with periods of intense abiotic stress. Particularly, complex signaling pathways in L. tridentata allow it to survive in periods of severe water deficiency. Through the findings of Zou et al. [5,6], LtWRKY21 synergistically works with abscisic acid (ABA) to transactivate both ABA-inducible HVA1 and HVA22 promoters. In addition, as ABA and gibberellic acid (GA) pathways are known to act antagonistically. Expectantly, the findings of Zou et al. suggest that LtWRKY21 activates ABA …
The Endosymbiotic Relationship Of Leguminosae (Fabaceae) And Rhizobium, Sabrina Mcgee, Dolores Maceda, Maria Bustos, Maryknoll Palisoc, Rachel Dahl
The Endosymbiotic Relationship Of Leguminosae (Fabaceae) And Rhizobium, Sabrina Mcgee, Dolores Maceda, Maria Bustos, Maryknoll Palisoc, Rachel Dahl
Undergraduate Research Opportunities Program (UROP)
This project will look at The Endosymbiotic Relationship of Leguminosae (Fabaceae) and Rizobioum. Endoysmbiosis Theory is the concept that mitochondria and chloroplasts are the result of years of evolution initiated by the endocytosis, (the process by which cells absorb material through their cell membrane) of bacteria and algae which, instead of becoming digested, became symbiotic.The mitochondria of eukaryotes evolved from aerobic bacteria, probably rickettsias, living within their host cell and the chloroplasts from cyanobacteria, also known as blue-green algae. Endoysmbiosis is a type of symbiosis in which one organism lives inside the body of another and both function as a …