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Full-Text Articles in Life Sciences

The Purification And Thermal Stability Of The Peroxidase Enzyme In Cucurbita Moschata, Garen Hamner Apr 2024

The Purification And Thermal Stability Of The Peroxidase Enzyme In Cucurbita Moschata, Garen Hamner

Senior Honors Theses

Peroxidases are enzymes that catalyze the reduction of hydrogen peroxide to water while oxidizing organic substrates and are valuable in spheres like industrial and medical applications and histochemistry. Limitations still exist in the use of the well-studied horseradish peroxidase for certain activities due to limitations like poor thermal stability, thus the search for novel peroxidases that can overcome these limitations is an active area of research. Butternut squash peroxidase (Cucurbita moschata) (BSP) shows promise due to significant activity being found in the skin and apparent enhanced thermal stability, but an efficient purification scheme for it is lacking, as well as …


Drug Ideologies Of The United States, Macy Montgomery May 2023

Drug Ideologies Of The United States, Macy Montgomery

Helm's School of Government Conference - American Revival: Citizenship & Virtue

The United States has been increasingly creating lenient drug policies. Seventeen states and Washington, the District of Columbia, legalized marijuana, and Oregon decriminalized certain drugs, including methamphetamine, heroin, and cocaine. The medical community has proven that drugs, including marijuana, have myriad adverse health side effects. This leads to two questions: Why does the United States government continue to create lenient drug policies, and what reasons do citizens give for legalizing drugs when the medical community has proven them harmful? The paper hypothesizes that the disadvantages of drug legalization outweigh its benefits because of the numerous harms it causes, such as …


Activation Of Nrf2 Pathway By Natural Products, Genesis Schat, Madelyn Sedlachek Apr 2023

Activation Of Nrf2 Pathway By Natural Products, Genesis Schat, Madelyn Sedlachek

Liberty University Research Week

Undergraduate

Basic


Prevalence Of Sars-Cov-2 Antibodies In Liberty University Student Population, Emily Bonus Apr 2023

Prevalence Of Sars-Cov-2 Antibodies In Liberty University Student Population, Emily Bonus

Senior Honors Theses

In 2020, the virus SARS-CoV-2 gained attention as it spread around the world. Its antibodies are poorly understood, and little research focuses on those with few COVID-19 complications yet large numbers of close contacts: university students. This longitudinal study recorded SARS-CoV-2 antibody presence in 107 undergraduate Liberty University students twice during early 2021. After extensive data cleaning and the application of various statistical tests and ANOVAs, the data seems to show that in the case of COVID-19 infections, SARS-CoV-2 IgM antibodies are immediately produced, and then IgG antibodies follow later. However, the COVID-19 vaccine causes the production of both IgM …


Casein Kinases Are Required For The Stability Of The Glucose Sensing Receptor Rgt2 In Yeast, Danny Bloor Apr 2022

Casein Kinases Are Required For The Stability Of The Glucose Sensing Receptor Rgt2 In Yeast, Danny Bloor

Liberty University Research Week

Undergraduate

Basic


Biomedical Applications And Syntheses Of Selected Anthraquinone Dyes, Richard Sirard Apr 2021

Biomedical Applications And Syntheses Of Selected Anthraquinone Dyes, Richard Sirard

Senior Honors Theses

Anthraquinones are aromatic organic compounds that have multiple applications in the biomedical field. Some anthraquinone-based compounds are used as fluorophores to contrast cell nuclei while others act as chemotherapeutic agents. However, there are not many fluorescent anthraquinone cell stains currently available. In this study, commercially available anthraquinone dyes, in addition to other dye families and compounds, were reviewed for their unique properties, advantages, and drawbacks. The development and characterization of three novel anthraquinone fluorophores revealed promising photophysical characteristics, like large Stokes shifts. One of the compounds, RBS3, was chosen for fixed and live cell staining and exhibited desirable biomedical properties. …


Research And Review Of Polymethyl-Methacrylate Copolymers In The Development Of Enhanced Pharmaceutical Delivery Systems, Jake Dyess Apr 2020

Research And Review Of Polymethyl-Methacrylate Copolymers In The Development Of Enhanced Pharmaceutical Delivery Systems, Jake Dyess

Senior Honors Theses

The following thesis shall primarily explore the current research regarding the implementation of modifiable microscopic and nanoscopic polymer particles as novel pharmaceutical delivery systems. Polymethacrylate-based copolymers, such as EudragitTM, are sensitive to alterations in pH levels, becoming increasingly more soluble in response to an increase in pH. The selective solubility and modifiable nature of these polymers allows for greater flexibility of treatment options for patients (Patra et al., 2017). The wide range of functionality of polymethacrylate (PMA) may provide solutions to challenges relating to the current treatment and therapy of certain conditions. Research indicates that PMA based micro- …


Computational Contributions To The Automation Of Agriculture, Micah Nagel Apr 2019

Computational Contributions To The Automation Of Agriculture, Micah Nagel

Senior Honors Theses

The purpose of this paper is to explore ways that computational advancements have enabled the complete automation of agriculture from start to finish. With a major need for agricultural advancements because of food and water shortages, some farmers have begun creating their own solutions to these problems. Primarily explored in this paper, however, are current research topics in the automation of agriculture. Digital agriculture is surveyed, focusing on ways that data collection can be beneficial. Additionally, self-driving technology is explored with emphasis on farming applications. Machine vision technology is also detailed, with specific application to weed management and harvesting of …


Therapeutic Delivery Technology And Its Economic Impact, Paul E. Savas Jr. Jan 2019

Therapeutic Delivery Technology And Its Economic Impact, Paul E. Savas Jr.

Senior Honors Theses

Therapeutic delivery technology is a current area of high interest in both university and industrial settings. These technologies are being developed in order to deliver therapeutic agents, such as genes, proteins, and drugs, to patients more efficiently. Nanoscale delivery vehicles have proven to be useful for these applications; these vehicles may either be naturally produced or chemically synthesized. The physical properties of these nanomaterials must be characterized correctly using instrumentation that evaluates their size, morphology, and potential for agglomeration. These technologies represent a high-growth economic area that fosters entrepreneurship and innovation. Because of this innovative spirit, research and economic interest …


Integrating The Field Of Prebiotic Chemistry Into A Christian Worldview, Matthew B. Anderson Apr 2017

Integrating The Field Of Prebiotic Chemistry Into A Christian Worldview, Matthew B. Anderson

Senior Honors Theses

This thesis will provide an overarching examination into the scientific field of prebiotic chemistry, the purported chemistry of the formation of life on earth. Prebiotic chemistry is a critical area of science particularly for Christian scientists to study since it is used by many evolutionists as evidence for the evolution of life, rather than the formation by an intelligent designer. Extensive literature-based research from previously published articles will be conducted on the formation of biologically necessary molecules, including amino acids. Primary focus will be placed on the formation of amino acids in a primordial earth environment, first demonstrated by the …


Lipid Content And Biomass Analysis In Autotrophic And Heterotrophic Algal Species, Addie M. Lauder, Daniel P. Jones, Thomas E. Walker, Todd Allen Apr 2016

Lipid Content And Biomass Analysis In Autotrophic And Heterotrophic Algal Species, Addie M. Lauder, Daniel P. Jones, Thomas E. Walker, Todd Allen

Montview Journal of Research & Scholarship

Biofuels are a form of renewable energy derived from living matter, typically plants. The push for biofuels began in order to decrease the amount of carbon dioxide (CO2) released into the atmosphere, as biofuels are essentially carbon neutral. The idea is the same amount of CO2 the plants took in to perform photosynthesis will then be released in the burning of the biofuels. Algae is an excellent source of biofuels because it grows quickly and is versatile in terms of the type of fuel it can produce. The two most common mechanisms for algae growth are heterotrophic or photoautotrophic. Heterotrophically …


Fossil Baramins On Noah's Ark: The "Amphibians", Marcus R. Ross Sep 2014

Fossil Baramins On Noah's Ark: The "Amphibians", Marcus R. Ross

Marcus R. Ross

Here I provide a compendium of extinct “amphibian” groups, representatives of which may have been carried aboard Noah’s Ark. Following previous work by the Ark Encounter team, I selected the taxonomic rank of family as a first-order proxy for the biblical “kind.” The resulting tabulation places 54 extinct “amphibian” families/kinds on board the Ark. While this number hinges upon taxonomies built upon fossil data (and its inherent shortcomings compared to extant forms), it serves as a reasonable approximation of the number of fossil “amphibians” taken aboard the Ark. When added to previously determined kinds of extant anurans, caudates, and gymnophionans, …


Terrestrial Vertebrate Families On Noah's Ark, Seth J. Beech Apr 2012

Terrestrial Vertebrate Families On Noah's Ark, Seth J. Beech

Senior Honors Theses

One of the central challenges faced by young-Earth creation researchers who believe the Bible to be the inerrant Word of God is defending the Biblical claim that two of every kind of nephesh animal was saved from the great flood on Noah’s ark. Recently, Answers in Genesis became involved in the design and construction of a full-sized, authentic replica of Noah’s ark. They have endeavored to be as accurate as possible in presenting the number of kinds that would have needed to be on the ark in order to have the diversity in species that we observe today. In order …


Effective Numbers Of Electrons As A Criterion Of Carbon Suitability As A Hemosorbent, Mogely Khubutiya, Boris Grafov, Mikhail M. Goldin, Alexei Davydov, Vladimir Kolesnikov, Mark Goldin Jan 2011

Effective Numbers Of Electrons As A Criterion Of Carbon Suitability As A Hemosorbent, Mogely Khubutiya, Boris Grafov, Mikhail M. Goldin, Alexei Davydov, Vladimir Kolesnikov, Mark Goldin

Faculty Publications and Presentations

The number of medical applications of electrochemistry has grown in recent years due to the increased applications of electrochemical concepts to various systems of the organism. This includes electrochemically controlled hemosorption detoxification, where the removal of toxicants is controlled by changing the potential of the hemosorbent. It is important to avoid Faradaic processes in the course of hemosorption, which can lead to the addition of electrochemically modified toxicants to blood. The probability of their occurrence should depend on the open-circuit potential of the activated carbon. In order to elucidate the identification of Faradaic reactions, a model system was investigated. The …


Mechanisms Of Adsorption Of Copper And Silver Ions On Carbon Materials In An Open Circuit, Mikhail M. Goldin Jan 2011

Mechanisms Of Adsorption Of Copper And Silver Ions On Carbon Materials In An Open Circuit, Mikhail M. Goldin

Faculty Publications and Presentations

No abstract provided.


Ohio Conservation Plan: Plains Gartersnake, Thamnophis Radix, Norman Reichenbach, M. Barrie, K. Becka, G. Burghardt, S. Butterworth, C. Caldwell, F. Dierkes, P. Johantgen, K. Stanford, D. Wynn Jan 2010

Ohio Conservation Plan: Plains Gartersnake, Thamnophis Radix, Norman Reichenbach, M. Barrie, K. Becka, G. Burghardt, S. Butterworth, C. Caldwell, F. Dierkes, P. Johantgen, K. Stanford, D. Wynn

Faculty Publications and Presentations

This plan outlines strategies and methods used in an ongoing study initiated in 1999 to restore a selfsustaining population of the Plains gartersnake (Thamnophis radix) in Ohio. Restoring a self-sustaining population would require increases in the current population to where the ratios of T. radix to T. sirtalis are approximately 1:1 in multiple locations in Killdeer Plains Wildlife Area (KPWA). This ratio would be similar to what was seen earlier by Reichenbach and Dalrymple (1986) at one site in KPWA.

The plan was developed by a team of enthusiastic conservationists representing, the Division of Wildlife (ODW), the Columbus and Cleveland …


Measurements Of Platinum Electrode Potential In Blood And Blood Plasma And Serum, Mogely Khubutiya, Anatoly K. Evseev, Vladimir Kolesnikov, Mikhail M. Goldin, Alexei Davydov, Alexander Volkov, Andrey Stepanov Jan 2010

Measurements Of Platinum Electrode Potential In Blood And Blood Plasma And Serum, Mogely Khubutiya, Anatoly K. Evseev, Vladimir Kolesnikov, Mikhail M. Goldin, Alexei Davydov, Alexander Volkov, Andrey Stepanov

Faculty Publications and Presentations

The method of electrochemical pretreatment of platinum electrode with the goal of standardizing the initial state of electrode surface and its open-circuit potential (OCP) in the blood and other biological media is proposed. The platinum electrode potential is measured in 0.14 M Na2SO4 aqueous solution, in the blood and blood plasma and serum. By the examples of OCP measured in the blood serum of patients with acute poisoning, acute cerebral pathology and patients treated by the method of hyperbaric oxygenation, it was found that the values of blood serum OCP were different for studied pathological states and healthy people.


Garden Of The Gods At Colorado Springs: Paleozoic And Mesozoic Sedimentation And Tectonics, Marcus R. Ross, William A. Hoesch, Steven A. Austin, John H. Whitmore, Timothy L. Clarey Jan 2010

Garden Of The Gods At Colorado Springs: Paleozoic And Mesozoic Sedimentation And Tectonics, Marcus R. Ross, William A. Hoesch, Steven A. Austin, John H. Whitmore, Timothy L. Clarey

Faculty Publications and Presentations

Exposed along the southeast fl ank of the Colorado Front Range are rocks that beautifully illustrate the interplay of sedimentation and tectonics. Two major rangebounding faults, the Ute Pass fault and the Rampart Range fault, converge on the Garden of the Gods region west of Colorado Springs. Cambrian through Cretaceous strata upturned by these faults reveal in their grain compositions, textures, and bedforms radically different styles of sedimentation. The Cambrian/Ordovician marine transgressive deposits appear to have come to rest on a passive and tectonically inactive craton. In contrast, coarse-grained Pennsylvanian/Permian marine deposits of the Fountain Formation and Lyons Sandstone reveal …


The Ecology Of The Peaks Of Otter Salamander (Plethodon Hubrichti) In Sympatry With The Eastern Red-Backed Salamander (Plethodon Cinereus), Norman Reichenbach, Andrew Kniowski Dec 2009

The Ecology Of The Peaks Of Otter Salamander (Plethodon Hubrichti) In Sympatry With The Eastern Red-Backed Salamander (Plethodon Cinereus), Norman Reichenbach, Andrew Kniowski

Faculty Publications and Presentations

The Peaks of Otter Salamander, Plethodon hubrichti, is found along a 19 km length of the Blue Ridge Mountains, Virginia, USA, often in sympatry with the Eastern Red-backed Salamander, P. cinereus. In a sympatric area of Bedford County, Virginia, we conducted a mark-recapture study on a 10 × 10 m site. Surface densities of salamanders increased as the number of days without precipitation prior to a collection event increased. This suggests vertical movements in response to surface moisture. When salamanders returned to the surface after rain, individuals appeared to “shuffle” between rocks and likely, leaf litter. That is, we were …


Methods For The Isolation Of Sensory And Primary Cilia—An Overview, Kimberly A. P. Mitchell, Gabor Szabo, Angela De S. Otero Jan 2009

Methods For The Isolation Of Sensory And Primary Cilia—An Overview, Kimberly A. P. Mitchell, Gabor Szabo, Angela De S. Otero

Faculty Publications and Presentations

Detailed proteomic analyses of mammalian olfactory and rod photoreceptor sensory cilia are now available, providing an inventory of resident ciliary proteins and laying the foundation for future studies of developmental and spatio-temporal changes in the composition of sensory cilia. Cilia purification methods that were elaborated and perfected over several decades were essential for these advances. In contrast, the proteome of primary cilia is yet to be established, because purification procedures for this organelle have been developed only recently. In this chapter we review current techniques for the purification of olfactory and photoreceptor cilia, and evaluate methods designed for the selective …


Direct Binding Of Cytosolic Ndp Kinases To Membrane Lipids Is Regulated By Nucleotides, Kimberly A. P. Mitchell, Gabor Szabo, Angela De S . Otero Jan 2009

Direct Binding Of Cytosolic Ndp Kinases To Membrane Lipids Is Regulated By Nucleotides, Kimberly A. P. Mitchell, Gabor Szabo, Angela De S . Otero

Faculty Publications and Presentations

In spite of their complete lack of any structural features that characterize membrane proteins, cytosolic nucleoside-diphosphate kinases (NDPKs) have been found repeatedly to associate with membranes. In some instances the recruitment of cytosolic NDPKs to membranes was attributed to interactions with peripheral or integral membrane proteins, but in many cases the mechanism underlying the association of NDPKs with membranes remained unknown. We show here that cytosolic NDPKs bind directly to membrane lipids in a dynamic process that is controlled by its substrates, nucleoside tri- and diphosphates, and can be fully reconstituted with chemically defined, protein-free phospholipids and recombinant NDPK, or …


Charting The Late Cretaceous Seas: Mosasaur Richness And Morphological Diversification, Marcus R. Ross Jan 2009

Charting The Late Cretaceous Seas: Mosasaur Richness And Morphological Diversification, Marcus R. Ross

Faculty Publications and Presentations

Abundant, readily identifiable, and biostratigraphically resolved specimens make mosasaurs ideal candidates to test fluxes in generic richness and morphological trends among marine vertebrates during the late Cretaceous. More than 1800 globally distributed mosasaur specimens are allocated to fifteen substage-level stratigraphically correlated assemblages. These data are quantitatively analyzed to illuminate trends within the group. Following their first appearance in the Cenomanian, mosasaurs experienced a significant radiation in the Coniacian and Santonian. Richness levels continued increasing into the Maastrichtian while mosasaurs incrementally exploited new predatory niches recognized via accumulation of novel dental morphologies. Their extinction at the end of the Cretaceous occurred …


Open Circuit Potential Shifts Of Activated Carbon In Aqueous Solutions During Chemical And Adsorption Interactions, Mikhail M. Goldin, Vladimir A. Kolesnikov, Mogely Sh. Khubutiya, Alexander G. Volkov, Gary J. Blanchard, Anatoly K. Evseev, Mark M. Goldin Jan 2008

Open Circuit Potential Shifts Of Activated Carbon In Aqueous Solutions During Chemical And Adsorption Interactions, Mikhail M. Goldin, Vladimir A. Kolesnikov, Mogely Sh. Khubutiya, Alexander G. Volkov, Gary J. Blanchard, Anatoly K. Evseev, Mark M. Goldin

Faculty Publications and Presentations

Interaction of certain inorganic and organic compounds with activated carbon and the effect of such interaction on open circuit potential of activated carbon were studied. Open circuit potential shifts were observed for an overwhelming majority of the substances and brands of activated carbons investigated. Both negative and positive potential shifts were observed. It was shown that open circuit potential shifts for organic substances depend on degree of coverage of the activated carbon surface. Whereas adsorption of investigated organic compound on activated carbon led to positive potential shifts, desorption of adsorbates from the activated carbon surface led to potential shifts in …


Review: A Creationist Review And Preliminary Analysis Of The History, Geology, Climate, And Biology Of The Galápagos Islands, Timothy R. Brophy Feb 2007

Review: A Creationist Review And Preliminary Analysis Of The History, Geology, Climate, And Biology Of The Galápagos Islands, Timothy R. Brophy

Faculty Publications and Presentations

No abstract provided.


Activated Carbon Open Circuit Potential Shifts In Aqueous Solutions, Mikhail M. Goldin, Gary Blanchard, Alexander Volkov, Mogely Khubutiya, Vladimir Kolesnikov, Anatoly Evseev, Mark Goldin Jan 2007

Activated Carbon Open Circuit Potential Shifts In Aqueous Solutions, Mikhail M. Goldin, Gary Blanchard, Alexander Volkov, Mogely Khubutiya, Vladimir Kolesnikov, Anatoly Evseev, Mark Goldin

Faculty Publications and Presentations

Interaction of certain organic compounds with activated carbon and its effect on the carbon open circuit potentials were studied. It was shown that shifts in open circuit potentials depended on the filling of the activated carbon surface. Whereas adsorption of the investigated compounds on the carbon led to positive potential shifts, their elimination (desorption) from carbon surface led to shifts in the opposite direction. It was also observed that the time dependence of potential shifts is similar for different carbon brands. The magnitude of shifts depended on adsorption activity and porometric characteristics of the carbon adsorbent, as well as the …


Redox Potential Measurement In Aqueous Solutions And Biological Media, Mark M. Goldin, G. J. Blanchard, A. K. Evseev, V. A. Kolesnikov, Yu S. Goldfarb, A. G. Volkov, Mikhail M. Goldin Jan 2007

Redox Potential Measurement In Aqueous Solutions And Biological Media, Mark M. Goldin, G. J. Blanchard, A. K. Evseev, V. A. Kolesnikov, Yu S. Goldfarb, A. G. Volkov, Mikhail M. Goldin

Faculty Publications and Presentations

No abstract provided.


Trans-Atlantic Correlation Of Upper Cretaceous Marine Sediments, Marcus R. Ross, David E. Fastovsky Jan 2006

Trans-Atlantic Correlation Of Upper Cretaceous Marine Sediments, Marcus R. Ross, David E. Fastovsky

Faculty Publications and Presentations

Upper Cretaceous marine deposits from the Mid-Atlantic region of North America (Delaware, Maryland, and New Jersey) and the Maastricht area (southern Netherlands, and nearby Belgium and Gennany) are correlated across the Atlantic using a variety of macro invertebrates, nannofossils, and sequence stratigraphy. Four late Cretaceous Mid-Atlantic sequences, the Marshalltown, Englishtown, Merchantville, and Navesink, span the upper Santonian to lowennost Danian, and have direct correlatives in the Maastricht area. Correlations between the Mid-Atlantic and the Maastricht regions (respectively) are as follows: the upper Santonian to lower Campanian Merchantville and Matawan formations with the Achen and lower Vaals fonnations; the middle Campanian …


Mechanism Of Shifts Of Potentials Of Hemosorbents Based On Activated Carbons Caused By Adsorption Of Organic Toxicants, Mark Goldin, Yury Goldfarb, Mikhail M. Goldin Jan 2006

Mechanism Of Shifts Of Potentials Of Hemosorbents Based On Activated Carbons Caused By Adsorption Of Organic Toxicants, Mark Goldin, Yury Goldfarb, Mikhail M. Goldin

Faculty Publications and Presentations

No abstract provided.


The Mechanism Of Potential Shifts Of Activated Carbon Due To Adsorption Of Organic Compounds, Mikhail M. Goldin, Vladimir Avramenko, Alexander G. Volkov, Mark Goldin Jan 2006

The Mechanism Of Potential Shifts Of Activated Carbon Due To Adsorption Of Organic Compounds, Mikhail M. Goldin, Vladimir Avramenko, Alexander G. Volkov, Mark Goldin

Faculty Publications and Presentations

No abstract provided.


A Taxonomy Of Teleology: Phillip Johnson, The Intelligent Design Community, And Young-Earth Creationism, Marcus R. Ross, P. A. Nelson Jan 2006

A Taxonomy Of Teleology: Phillip Johnson, The Intelligent Design Community, And Young-Earth Creationism, Marcus R. Ross, P. A. Nelson

Faculty Publications and Presentations

No abstract provided.