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Articles 1 - 30 of 37
Full-Text Articles in Life Sciences
Microplastic Accumulation In The Marsh Periwinkle (Littoraria Irrorata), Sarah Keaton, Hannah Lukhard, Eli Windy, Manar Hasan
Microplastic Accumulation In The Marsh Periwinkle (Littoraria Irrorata), Sarah Keaton, Hannah Lukhard, Eli Windy, Manar Hasan
DePaul Discoveries
Contamination of oceans by microplastics (mm) currently poses a major threat to aquatic and terrestrial ecosystems worldwide. Recent attention towards this issue has raised questions about the extent to which microplastics have accumulated in the environment, and has led to an increase in studies on the effects of microplastics in various organisms. However, levels of contamination in protected natural areas are still largely unexplored, yet can offer an important empirical perspective on the issue. In addition, little is known about the potential effects of microplastics on behavior in the field. This research was conducted within the protected ACE Basin National …
Comparing The Microbiomes Of Dental Plaques In 19th Century Ancestral Remains, Ananya Udyaver
Comparing The Microbiomes Of Dental Plaques In 19th Century Ancestral Remains, Ananya Udyaver
Undergraduate Research Posters
During the construction of VCU’s Hermes A. Kontos Medical Sciences Building in April 1994, nineteenth century ancestral remains were found in an abandoned well on the Medical College of Virginia (MCV) campus. This well, now known as the East Marshall Street Well (EMSW), is thought to have been used as a disposal location for cadaver dissection for surgical and other medical waste in the past. VCU is now seeking to use DNA sequencing technology to match and assemble bones from each individual for a proper burial, uncover the cultural and historical context in which these people lived, and bring a …
Proposing An Rna Interference (Rnai)-Based Treatment For Human Immunodeficiency Virus (Hiv) By Analyzing The Post-Transcriptional Gene Targeting Of Sars-Cov-2, Hepatitis C Virus, And A549 Lung Cancer Cells, Arjun Jagdeesh
Undergraduate Research Posters
Human Immunodeficiency Virus (HIV) is a retrovirus that infects CD4+ T cell lymphocytes in humans, leading to the development of Acquired Immunodeficiency Syndrome (AIDS) if left untreated. While current treatment methods, including antiretroviral combination treatments, effectively limit HIV replication, HIV can evade these treatments due to its high mutation rate. Long-term antiretroviral treatment can also be toxic to patients, meaning patients would benefit from a new mechanism of HIV treatment. RNA interference (RNAi) is an antiviral pathway found in mammals, plants, and insects that involves a small-interfering RNA that is incorporated into a protein complex called the RNA-induced Silencing Complex …
Aeromonas Phage Research And The Public Health Impact Of Antibiotics In Aquaculture Workers, Madelyn Merchant
Aeromonas Phage Research And The Public Health Impact Of Antibiotics In Aquaculture Workers, Madelyn Merchant
Honors Projects
One of the most common fish diseases in aquaculture is Aeromonas infection. The most common way to treat this infection is through antibiotics. The bacteria in the fish can become antibiotic-resistant and perpetuate the disease. The diseases in fish create a huge financial loss and the industry loses $6 billion per year due to diseases in fish. An alternative to antibiotics is bacteriophage which causes less environmental degradation and is better for human gut flora. In aquaculture there have been examples of aquaculture workers becoming sick from the water in aquaculture ponds as well as from people eating the fish. …
Impaired Β-Cell Neogenesis In A Mouse Model Of Metabolic Syndrome, Modhi Abdullah Alshammari
Impaired Β-Cell Neogenesis In A Mouse Model Of Metabolic Syndrome, Modhi Abdullah Alshammari
Browse all Theses and Dissertations
Pancreatic islet β-cell plays an essential role in insulin release and hence glucose homeostasis. The maintenance of glucose homeostasis depends on β-cell ability to cope with enough insulin to fulfill metabolic and physiological demands. Adequate insulin release is the result of highly complex and dynamic interplays between acute changes in β- cell electrical activity, exocytosis and chronic adaptations in cellular function, volume, mass and proliferation. All of this appears modulated, to some extent, by the functional presence of Slc12a2 symporters, also known as Na+K+2Cl– cotransporter-1 (Nkcc1), which accumulates intracellular Cl– above its electrochemical equilibrium. Recent studies from our laboratory showed …
Impacts Of Plastic Pollution On A Pelagic Marine Mammal, The Northern Elephant Seal, Lauren M. Kashiwabara
Impacts Of Plastic Pollution On A Pelagic Marine Mammal, The Northern Elephant Seal, Lauren M. Kashiwabara
University of the Pacific Theses and Dissertations
As plastic pollution increases, top marine predators such as marine mammals are becoming increasingly susceptible to plastic particles and their additives. Plastic particles have been found in gastrointestinal tracts and scat of many marine mammals, and quantifying plastic pollution in those that are pelagic can provide insight into plastic pollution in mesopelagic ecosystems that are just beginning to be analyzed. Adapting well-developed laboratory techniques for microplastic (MP) isolation (i.e. density separation and chemical digestion), I isolated MPs from the scat of the deepest diving pinniped, the northern elephant seal (NES), and found that100% of scat samples (n=11) contained high counts …
Pectin And Alginate Extraction To Treat Liquid Cafo Manure, Clare Sunderman
Pectin And Alginate Extraction To Treat Liquid Cafo Manure, Clare Sunderman
Honors Projects
For this project, various extraction methods were used to extract pectin from Pastinaca Sativa and alginate from Macrocystis. These extractions were then dried and used in treating 250mL of manure along with a CaCl2 or FeCl3 coagulant. It was found that CaCl2 was not as effective as FeCl3 in coagulating manure. But the results obtained suggest that pectin and alginate obtained with a simpler extraction method is just as effective as the highly purified and refined pectin and alginate produced for the food industry, in the treatment of CAFO manure. The liquid portion of the …
Investigating The Effects Of Temperature On Lesser Celandine, Regina Bellian
Investigating The Effects Of Temperature On Lesser Celandine, Regina Bellian
The Downtown Review
This paper explores invasive species Ficaria verna (Lesser celandine) and the effects of temperature on its growth. Trials were completed with two treatments, 13OC cold temperature and 20OC ambient temperature. Germinated bulbils of Lesser celandine were planted on February 15, 2017 and placed in their respective growing chambers. The plants were watered weekly and monitored for growth until harvest on March 29, 2017. Upon harvest, the plants’ height, largest leaf diameter and biomass were measured after extraction from soil and the removal of the leftover soil debris. Average height was found to be 11.66cm for the cold treatment and 5.14cm …
A Rapid Viability And Drug‑Susceptibility Assay Utilizing Mycobacteriophage As An Indicator Of Drug Susceptibilities Of Anti‑Tb Drugs Against Mycobacterium Smegmatis Mc2 155, Gillian Catherine Crowley, Jim O'Mahony, Aidan Coffey, Riona G. Sayers, Paul D. Cotter
A Rapid Viability And Drug‑Susceptibility Assay Utilizing Mycobacteriophage As An Indicator Of Drug Susceptibilities Of Anti‑Tb Drugs Against Mycobacterium Smegmatis Mc2 155, Gillian Catherine Crowley, Jim O'Mahony, Aidan Coffey, Riona G. Sayers, Paul D. Cotter
Department of Biological Sciences Publications
Background: A rapid in-house TM4 mycobacteriophage-based assay, to identify multidrug resistance against various anti-tuberculosis drugs, using the fast-growing Mycobacterium smegmatis mc2 155 in a microtiter plate format was evaluated, based on phage viability assays. Methods: A variety of parameters were optimized before the study including the minimum incubation time for the drugs, phage and M. smegmatis mc2 155 to be in contact. An increase in phage numbers over 2 h was indicative that M. smegmatis mc2 155 is resistant to the drugs under investigation, however when phage numbers remained static, M. smegmatis mc2 155 found to …
Full Issue: Volume 12, Number 2
Full Issue: Volume 12, Number 2
The Science Journal of the Lander College of Arts and Sciences
No abstract provided.
Full Issue: Volume 13, Number 1
Full Issue: Volume 13, Number 1
The Science Journal of the Lander College of Arts and Sciences
Complete .pdf file of Volume 13, Number 1 of The Science Journal of the Lander College of Arts and Sciences.
Investigating The Ecology Of A Rare Species On St. John, Usvi: Reintroducing Solanum Conocarpum In Light Of Climate Change, Cecilia Rogers
Investigating The Ecology Of A Rare Species On St. John, Usvi: Reintroducing Solanum Conocarpum In Light Of Climate Change, Cecilia Rogers
Senior Honors Projects, 2010-2019
Approximately two thirds of St. John is National Park territory. However, the land has been threatened with tourism and development, greatly impacting island biodiversity. One species that may become extinct due to this degradation is Solanum conocarpum. S. conocarpum is a rare shrub, endemic to the dry tropical forests of St. John, USVI. This plant is a species of conservation concern and is one of very few native and endemic plants on this island. Very little is known about the ecology and reproduction of S. conocarpum. Most plants are found on the southern half of the island. Recent observations …
Full Issue: Volume 11, Number 2
Full Issue: Volume 11, Number 2
The Science Journal of the Lander College of Arts and Sciences
No abstract provided.
Full Issue: Volume 12, Number 1
Full Issue: Volume 12, Number 1
The Science Journal of the Lander College of Arts and Sciences
No abstract provided.
Dredging Land Reclamation Causing Mucus Development In Massive Spherical Corals In The Spratly Islands, South China Sea: The Effects On China’S Fishing Industry, Tiffany K. Ho
Undergraduate Research Posters
Images from Asia Maritime Transparency Initiative depicted huge masses of white coral mucus secreted from coral reefs in the Spratly Islands of the South China Sea, an area where several land reclamation projects are occurring. The purpose of this research was to understand how increased sedimentation levels from the dredging land reclamation method affects mucus development in massive corals, such as Acropora, located in these reefs. Journal articles that focused on the biology of coral mucus, bacterial communities associated with coral tissue, mucus, and seawater, coral mortality from different environment impacts, coral coverage of reefs in Spratly Islands, and symbiotic …
Full Issue: Volume 10, Number 2
Full Issue: Volume 10, Number 2
The Science Journal of the Lander College of Arts and Sciences
No abstract provided.
Full Issue: Volume 11, Number 1
Full Issue: Volume 11, Number 1
The Science Journal of the Lander College of Arts and Sciences
No abstract provided.
Effect Of Bisphenol-A On Neurodevelopment In Drosophila Melanogaster Larvae, Alexandra M. Streifel
Effect Of Bisphenol-A On Neurodevelopment In Drosophila Melanogaster Larvae, Alexandra M. Streifel
All College Thesis Program, 2016-2019
This paper examines the effects of the chemical preservative bisphenol-A on the developing nervous systems of Drosophila melanogaster, or fruit fly, larvae. This study examines the effects of bisphenol-A using both behavioral as well as morphological paradigms. It was determined that bisphenol-A significantly increased the amount of time larvae spent in seeking behavior, the number of peristaltic contractions, and the distance traveled in a linear fashion. In the morphological analysis, indications of increased dendritic area in experimental larvae existed, but there was not enough data to determine significance. For future research, it is recommended that more data be gathered to …
The Impact Of Urbanization On Mosquito-Borne Viruses, Nikhita Puthuveetil
The Impact Of Urbanization On Mosquito-Borne Viruses, Nikhita Puthuveetil
Undergraduate Research Posters
Mosquito-borne diseases such as yellow fever, dengue, and West Nile are rapidly emerging across the globe. Their emergence is often aided by the growth of their vector population, or the organisms that transmit the virus to the host. Urbanization and land use often destroys the habitat of the virus and its vector. However, the virus and its vector often survive despite the changes to its environment. The goal of this paper is to find out exactly how urbanization and changes in land use affect mosquito-borne viruses and how these viruses survive despite the destruction of their habitats. To understand how …
An Investigation Of Juvenile Alewife (Alosa Pseudoharengus) Habitat Use And Growth Using Natural Markers, Gregory Norman Labonte Ms
An Investigation Of Juvenile Alewife (Alosa Pseudoharengus) Habitat Use And Growth Using Natural Markers, Gregory Norman Labonte Ms
All Student Scholarship
This research attempts to connect patterns in growth and migration of an anadromous species. The goal of this research was to understand habitat movements and growth of juvenile alewives (Alosa pseudoharengus) in the Penobscot Estuary and Bay through the use of otolith microchemistry, otolith growth increments, and a laboratory stable isotope turnover study. Understanding the connection between growth and movement of juvenile alewives may lead to more accurate and sophisticated conservation and restoration methods for anadromous species.
Full Issue: Volume 9, Number 2
Full Issue: Volume 9, Number 2
The Science Journal of the Lander College of Arts and Sciences
No abstract provided.
Full Issue: Volume 10, Number 1
Full Issue: Volume 10, Number 1
The Science Journal of the Lander College of Arts and Sciences
No abstract provided.
Microbial Communities Of The Providence River, Jacqueline Kratch
Microbial Communities Of The Providence River, Jacqueline Kratch
Honors Projects in Science and Technology
The Providence River has been industrialized for over one-hundred years. Industries such as oil storage and metal recycling facilities have left high levels of pollutant metals, including lead (Pb), in the soil and water. The elevated Pb concentrations in these environments influence the selection of Pb resistance mechanisms in the bacterial community1. One mechanism of heavy metal resistance is the Pb efflux pump, consisting of proteins in the cell membrane that aid in the transport of Pb out of the cell2. In this study we investigated the co-occurrence of Pb efflux pumps and antibiotic efflux pumps in bacteria from Pb …
Full Issue: Volume 8, Number 2
Full Issue: Volume 8, Number 2
The Science Journal of the Lander College of Arts and Sciences
No abstract provided.
Full Issue: Volume 9, Number 1
Full Issue: Volume 9, Number 1
The Science Journal of the Lander College of Arts and Sciences
No abstract provided.
Full Issue: Volume 8, Number 1
Full Issue: Volume 8, Number 1
The Science Journal of the Lander College of Arts and Sciences
No abstract provided.
Full Issue: Volume 6, Number 2
Full Issue: Volume 6, Number 2
The Science Journal of the Lander College of Arts and Sciences
No abstract provided.
Full Issue: Volume 7, Number 1
Full Issue: Volume 7, Number 1
The Science Journal of the Lander College of Arts and Sciences
No abstract provided.
Full Issue: Volume 6, Number 1
Full Issue: Volume 6, Number 1
The Science Journal of the Lander College of Arts and Sciences
No abstract provided.
Full Issue: Volume 5, Issue 2
The Science Journal of the Lander College of Arts and Sciences
No abstract provided.