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Articles 1 - 30 of 49
Full-Text Articles in Life Sciences
Aquaporin Expression And Cholesterol Content In Eel Swimbladder Tissue, Victoria Drechsel, Gabriel Schneebauer, Birgit Fiechtner, Christopher P. Cutler, Bernd Pelster
Aquaporin Expression And Cholesterol Content In Eel Swimbladder Tissue, Victoria Drechsel, Gabriel Schneebauer, Birgit Fiechtner, Christopher P. Cutler, Bernd Pelster
Department of Biology Faculty Publications
Leakiness of the swimbladder wall of teleost fishes must be prevented to avoid diffusional loss of gases out of the swimbladder. Guanine incrustation as well as high concentrations of cholesterol in swimbladder membranes in midwater and deep-sea fish has been connected to a reduced gas permeability of the swimbladder wall. On the contrary, the swimbladder is filled by diffusion of gases, mainly oxygen and CO2, from the blood and the gas gland cells into the swimbladder lumen. In swimbladder tissue of the zebrafish and the Japanese eel, aquaporin mRNA has been detected, and the aquaporin protein has been considered important …
High Rates Of Polygyny In Tropical Mexico Within The Native Range Of Vespula Squamosa., Alex K. Snyder, Kevin J. Loope
High Rates Of Polygyny In Tropical Mexico Within The Native Range Of Vespula Squamosa., Alex K. Snyder, Kevin J. Loope
Honors College Theses
Polygyny, or the formation of colonies with multiple cooperating queens, has been observed in a variety of social Hymenoptera and likely exists as a convergent evolutionary strategy. Polygyne cooperation has been observed in several Vespula sp. and is correlated with a perennial social strategy. This perennial-polygyne behavior has been observed most commonly within the tropical and subtropical regions of the invasive Vespula pensylvanica and V. germanica, and rarely within their native temperate ranges. This phenomenon has been relatively undocumented within the tropical portions the V. squamosa native range, despite it being observed in their temperate ranges several times. We observed …
Molecular Analysis Of Mchm Toxicity In Zebrafish, Cassandra Pelton
Molecular Analysis Of Mchm Toxicity In Zebrafish, Cassandra Pelton
Honors College Theses
In early 2014 Freedom Industries, located in Charleston, WV, leaked approximately 10,000 gallons of 4-methylcyclohexane methanol into the Elk River. This river serviced approximately 300,000 people as a source of municipal water. Its effects on the people and surrounding wildlife is largely unknown.
Chemicals in surface runoff have the potential to induce aquatic animal trait changes, such as altered movement and feeding, that can ultimately alter predator-prey dynamics in aquatic systems. However, chemicals with high potential to enter aquatic systems, like 4-methylcyclohexane methanol (MCHM) used to clean coal, were tested using only short-term, single-species studies prior to use. Data from …
An International Classification Of Functioning, Disability And Health Perspective On Physical Activity Participation Among Children With Cerebral Palsy, Adrenne T. Newell
An International Classification Of Functioning, Disability And Health Perspective On Physical Activity Participation Among Children With Cerebral Palsy, Adrenne T. Newell
Honors College Theses
Children with cerebral palsy do not commonly meet the minimum recommended physical activity guidelines published by the U.S. Department of Health and Human Services. Children with cerebral palsy face many functional limitations which can, in turn, affect participation and activity; therefore, this study aimed to identify the predictors of participation and activity among children with cerebral palsy. The study examined associations among poverty levels, neighborhood support, accommodating services, and familial financial burdens as factors influencing participation. Data were taken from the National Survey of Children’s Health. A chi-square test for the association was executed along with a logistic regression.
Fall 2021 Schedule Of Sustainability Events, Georgia Southern University
Fall 2021 Schedule Of Sustainability Events, Georgia Southern University
Calendar of Events
The Fall 2021 Calendar of Events for Sustain Southern.
Understanding The Mechanistic Roles Of Integrin Alpha 6 In Tumor Development Using A Humanized Zebrafish (Danio Rerio) Model System, Ashley B. Williams
Understanding The Mechanistic Roles Of Integrin Alpha 6 In Tumor Development Using A Humanized Zebrafish (Danio Rerio) Model System, Ashley B. Williams
Honors College Theses
Present day cancer incidence and mortality rates indicate the need for effective cancer diagnostic tools and targeted cancer therapeutic strategies. Recent studies have focused on the biological pathways of cells and tumor microenvironments to identify putative biomarkers and potential drug targets as diagnostic and therapeutic tools. Human integrins, adhesion receptors, have become the focal points in these studies, specifically Integrin Alpha 6 (ITGA6) which has been implicated in major tumor progression roles: metastasis and angiogenesis. These characteristics make ITGA6 an excellent candidate for potential drug or diagnostic target, however, the mechanism by which ITGA6 facilitates tumor progression remains unclear. Cell …
Impacts Of Detritivore Diversity Loss On Instream Decomposition Are Greatest In The Tropics, Luz Boyero, Naiara López-Rojo, Alan M. Tonin, Javier Pérez, Francisco Correa-Araneda, Richard G. Pearson, Jaime Bosch, Ricardo J. Albariño, Sankarappan Anbalagan, Leon A. Barmuta, Ana Basaguren, Francis J. Burdon, Adriano Caliman, Marcos Callisto, Ian C. Campbell, Bradley J. Cardinale, J. Jesús Casas, Ana M. Chará-Serna, Eric Chauvet, Szymon Ciapała, Jose Checo Colón-Gaud, Aydeé Cornejo, Aaron M. Davis, Monika Degebrodt, Emerson S. Dias, María E. Díaz, Michael M. Douglas, Andrea C. Encalada, Ricardo Figueroa, Alexander S. Flecker, Tadeusz Fleituch, Erica A. García, Gabriela García, Pavel E. García, Mark O. Gessner, Jesús E. Gómez, Sergio Gómez, Jose F. Gonçalves Jr, Manuel A. S. Graça, Daniel C. Gwinn, Robert O. Hall Jr., Neusa Hamada, Cang Hui, Daichi Imazawa, Tomoya Iwata, Samuel K. Kariuki, Andrea Landeira-Dabarca, Kelsey A. Laymon, María Leal, Richard Marchant, Renato T. Martins, Frank O. Masese, Megan Maul, Brendan G. Mckie, Adriana O. Medeiros, Charles M. M’ Erimba, Jen A. Middleton, Silvia Monroy, Timo Muotka, Junjiro N. Negishi, Alonso Ramírez, John S. Richardson, José Rincón, Juan Rubio-Ríos, Gisele M. Dos Santos, Romain Sarremejane, Fran Sheldon, Augustine Sitati, Nathalie S. D. Tenkiano, Scott D. Tiegs, Janine R. Tolod, Michael Venarsky, Anne Watson, Catherine M. Yule
Impacts Of Detritivore Diversity Loss On Instream Decomposition Are Greatest In The Tropics, Luz Boyero, Naiara López-Rojo, Alan M. Tonin, Javier Pérez, Francisco Correa-Araneda, Richard G. Pearson, Jaime Bosch, Ricardo J. Albariño, Sankarappan Anbalagan, Leon A. Barmuta, Ana Basaguren, Francis J. Burdon, Adriano Caliman, Marcos Callisto, Ian C. Campbell, Bradley J. Cardinale, J. Jesús Casas, Ana M. Chará-Serna, Eric Chauvet, Szymon Ciapała, Jose Checo Colón-Gaud, Aydeé Cornejo, Aaron M. Davis, Monika Degebrodt, Emerson S. Dias, María E. Díaz, Michael M. Douglas, Andrea C. Encalada, Ricardo Figueroa, Alexander S. Flecker, Tadeusz Fleituch, Erica A. García, Gabriela García, Pavel E. García, Mark O. Gessner, Jesús E. Gómez, Sergio Gómez, Jose F. Gonçalves Jr, Manuel A. S. Graça, Daniel C. Gwinn, Robert O. Hall Jr., Neusa Hamada, Cang Hui, Daichi Imazawa, Tomoya Iwata, Samuel K. Kariuki, Andrea Landeira-Dabarca, Kelsey A. Laymon, María Leal, Richard Marchant, Renato T. Martins, Frank O. Masese, Megan Maul, Brendan G. Mckie, Adriana O. Medeiros, Charles M. M’ Erimba, Jen A. Middleton, Silvia Monroy, Timo Muotka, Junjiro N. Negishi, Alonso Ramírez, John S. Richardson, José Rincón, Juan Rubio-Ríos, Gisele M. Dos Santos, Romain Sarremejane, Fran Sheldon, Augustine Sitati, Nathalie S. D. Tenkiano, Scott D. Tiegs, Janine R. Tolod, Michael Venarsky, Anne Watson, Catherine M. Yule
Department of Biology Faculty Publications
The relationship between detritivore diversity and decomposition can provide information on how biogeochemical cycles are affected by ongoing rates of extinction, but such evidence has come mostly from local studies and microcosm experiments. We conducted a globally distributed experiment (38 streams across 23 countries in 6 continents) using standardised methods to test the hypothesis that detritivore diversity enhances litter decomposition in streams, to establish the role of other characteristics of detritivore assemblages (abundance, biomass and body size), and to determine how patterns vary across realms, biomes and climates. We observed a positive relationship between diversity and decomposition, strongest in tropical …
A Forward Genetic Screen To Identify Human Genes Of Interest And Their Roles In Ovarian Cancer, Susan A. Ihejirika
A Forward Genetic Screen To Identify Human Genes Of Interest And Their Roles In Ovarian Cancer, Susan A. Ihejirika
Honors College Theses
Drosophila melanogaster, fruit flies, are very important for modeling and studying human diseases. This study identifies human genes of interest and their contributions to epithelial ovarian carcinogenesis and progression as well as the roles orthologs of these genes play in Drosophila melanogaster. This is important because ovarian cancer is the most common cause of death among the gynecological cancers. This identification of genes was carried out using a forward genetic screen employing the widely used GMR-Gal4 driver/UAS-transgene system. The GMR-Gal4 driver is commonly utilized to express transgenes in the developing eye of the fruit fly. Transgenes that are expressed using …
Effects Of Synthetic Estrogen (17Α-Ethinyl Estradiol) On Male Fiddler Crab Aggression, Micayla Shirley
Effects Of Synthetic Estrogen (17Α-Ethinyl Estradiol) On Male Fiddler Crab Aggression, Micayla Shirley
Honors College Theses
Pharmaceuticals, including hormones and antibiotics, are considered contaminants due to their widespread use and release into the environment. Hormones, like the synthetic estrogen used in oral contraceptives (17α-ethinylestradiol), are present in freshwater and marine systems, but with relatively unknown effects on the organisms that live there. Ethinylestradiol (EE2) accumulates in waterlogged soil (sediment) with potential to harm sediment-dwelling animals. For example, fiddler crabs (Uca pugilator) are vital members of salt marsh communities. Their burrowing adds oxygen to sediments and cycles nutrients, and they are an important food resource to birds and raccoons. Male fiddler crabs are territorial, aggressively …
Characterization Of Cuticular Hydrocarbon Profiles In Southeastern Argentine Ant (Linepithema Humile) Colonies, Katherine R. Barrs
Characterization Of Cuticular Hydrocarbon Profiles In Southeastern Argentine Ant (Linepithema Humile) Colonies, Katherine R. Barrs
Honors College Theses
Argentine ants, Linepithema humile, are a globally invasive species that displaces native species and facilitates agricultural pests. Colonies occupy distinct territories with multiple nests and defend them against other colonies. Ants have a waxy coating of cuticular hydrocarbons (CHCs) and can detect (i.e. smell) differences in these CHCs to identify their own vs foreign colonies. In the US, Argentine ants have been primarily studied in California where they only form four massive colonies showing mutual aggression, some spanning more than 500 miles. In the Southeast, colony recognition remains largely unexplored; however, we have identified several smaller colonies based on …
Heart Health: Lifestyle Factors That Influence Cardiovascular Well-Being, Holly K. Sawyer
Heart Health: Lifestyle Factors That Influence Cardiovascular Well-Being, Holly K. Sawyer
Honors College Theses
Each year, one in every four deaths in the United States is a result of heart disease. As the leading cause of death among women and men from various ethnicities, heart disease may be overlooked when making everyday life decisions. As a group of genetic and behavioral conditions, heart disease is the number one killer of Americans. This may be due to the typical Western diet and daily life choices such as drinking alcohol or smoking tobacco. Heart diseases including atherosclerosis and coronary artery disease kill ten times more women than breast cancer (Lewis, et al., 2017). White men have …
Evolution And Development Of Staminodes In Paronychia (Caryophyllaceae), Andrea D. Appleton
Evolution And Development Of Staminodes In Paronychia (Caryophyllaceae), Andrea D. Appleton
Honors College Theses
Staminodes are infertile stamens that have evolved numerous times in flowering plants and exhibit a vast array of forms and functions. Variation in staminodes suggests that numerous evolutionary processes underlie their origins, but to understand their how and why they evolved, comparative studies are needed in groups of closely related species. Identifying structures as staminodes is not always straightforward and sometimes requires corroborating phylogenetic and developmental evidence. Staminodial structures in Paronychia (Caryophyllaceae), for example, vary in shape and size and have been referred to as both petals and staminodes, rendering their homology uncertain. The development of staminodes was compared across …
Latitude Dictates Plant Diversity Effects On Instream Decomposition, Luz Boyero, Javier Pérez, Naiara López-Rojo, Alan M. Tonin, Francisco Correa-Araneda, Richard G. Pearson, Jaime Bosch, Ricardo J. Albariño, Sankarappan Anbalagan, Leon A. Barmuta, Leah Beesley, Francis J. Burdon, Adriano Caliman, Marcos Callisto, Ian C. Campbell, Bradley J. Cardinale, J. Jesús Casas, Ana M. Chará-Serna, Szymon Ciapała, Eric Chauvet, Jose Checo Colón-Gaud, Aydeé Cornejo, Aaron M. Davis, Monika Degebrodt, Emerson S. Dias, María E. Díaz, Michael M. Douglas, Arturo Elosegi, Andrea C. Encalada, Elvira De Eyto, Ricardo Figueroa, Alexander S. Flecker, André Frainer, Juliana S. França, Erica A. García, Gabriela García, Pavel E. García, Mark O. Gessner, Paul S. Giller, Jesús E. Gómez, Sergio Gómez, José F. Gonçalves Jr., Manuel A. S. Graça, Robert O. Hall Jr., Neusa Hamada, Luiz U. Hepp, Cang Hui, Daichi Imazawa, Tomoya Iwata, Edson S. A. Junior, Samuel K. Kariuki, Andrea Landeira-Dabarca, María Leal, Kaisa Lehosmaa, Charles M. M’ Erimba, Richard Marchant, Renato T. Martins, Frank O. Masese, Megan Camden, Brendan G. Mckie, Adriana O. Medeiros, Jen A. Middleton, Timo Muotka, Junjiro N. Negishi, Jesús Pozo, Alonso Ramírez, Renan S. Rezende, John S. Richardson, José Rincón, Juan Rubio-Ríos, Claudia Serrano, Angela R. Shaffer, Fran Sheldon, Christopher M. Swan, Nathalie S. D. Tenkiano, Scott D. Tiegs, Janine R. Tolod, Michael Vernasky, Anne Watson, Mourine J. Yegon, Catherine M. Yule
Latitude Dictates Plant Diversity Effects On Instream Decomposition, Luz Boyero, Javier Pérez, Naiara López-Rojo, Alan M. Tonin, Francisco Correa-Araneda, Richard G. Pearson, Jaime Bosch, Ricardo J. Albariño, Sankarappan Anbalagan, Leon A. Barmuta, Leah Beesley, Francis J. Burdon, Adriano Caliman, Marcos Callisto, Ian C. Campbell, Bradley J. Cardinale, J. Jesús Casas, Ana M. Chará-Serna, Szymon Ciapała, Eric Chauvet, Jose Checo Colón-Gaud, Aydeé Cornejo, Aaron M. Davis, Monika Degebrodt, Emerson S. Dias, María E. Díaz, Michael M. Douglas, Arturo Elosegi, Andrea C. Encalada, Elvira De Eyto, Ricardo Figueroa, Alexander S. Flecker, André Frainer, Juliana S. França, Erica A. García, Gabriela García, Pavel E. García, Mark O. Gessner, Paul S. Giller, Jesús E. Gómez, Sergio Gómez, José F. Gonçalves Jr., Manuel A. S. Graça, Robert O. Hall Jr., Neusa Hamada, Luiz U. Hepp, Cang Hui, Daichi Imazawa, Tomoya Iwata, Edson S. A. Junior, Samuel K. Kariuki, Andrea Landeira-Dabarca, María Leal, Kaisa Lehosmaa, Charles M. M’ Erimba, Richard Marchant, Renato T. Martins, Frank O. Masese, Megan Camden, Brendan G. Mckie, Adriana O. Medeiros, Jen A. Middleton, Timo Muotka, Junjiro N. Negishi, Jesús Pozo, Alonso Ramírez, Renan S. Rezende, John S. Richardson, José Rincón, Juan Rubio-Ríos, Claudia Serrano, Angela R. Shaffer, Fran Sheldon, Christopher M. Swan, Nathalie S. D. Tenkiano, Scott D. Tiegs, Janine R. Tolod, Michael Vernasky, Anne Watson, Mourine J. Yegon, Catherine M. Yule
Department of Biology Faculty Publications
Running waters contribute substantially to global carbon fluxes through decomposition of terrestrial plant litter by aquatic microorganisms and detritivores. Diversity of this litter may influence instream decomposition globally in ways that are not yet understood. We investigated latitudinal differences in decomposition of litter mixtures of low and high functional diversity in 40 streams on 6 continents and spanning 113° of latitude. Despite important variability in our dataset, we found latitudinal differences in the effect of litter functional diversity on decomposition, which we explained as evolutionary adaptations of litter-consuming detritivores to resource availability. Specifically, a balanced diet effect appears to operate …
Examining The Mechanistic Roles Of Integrin Alpha-6 In Cancer Metastasis., Chase T. Clark
Examining The Mechanistic Roles Of Integrin Alpha-6 In Cancer Metastasis., Chase T. Clark
Honors College Theses
Metastasis- the spread of cancer cells from the primary tumor to the surrounding tissues- is responsible for 90% of cancer deaths. Integrin alpha-6 (ITGA6) is a specific transmembrane cell surface protein that functions in cell surface adhesion and signaling. ITGA6 is upregulated in many types of cancers and promotes the migration and invasion of cancer cells to surrounding tissues. It is my objective to determine the mechanism through which ITGA6 facilitates the migration of cancer cells through the extracellular matrix (ECM). These experiments helped to establish the role of ITGA6 in tumor development and provide focus for possible chemotherapeutic treatment. …
The Relationship Between Sleep Duration And Optimism Levels In Generation Z Students, Anna Hassett
The Relationship Between Sleep Duration And Optimism Levels In Generation Z Students, Anna Hassett
Honors College Theses
Generation Z is getting less sleep than ever and in conjunction, the quality of Generation Z’s sleep is decreasing. Inadequate sleep can increase the risk of depression, cardiovascular diseases, obesity, and cognitive decline. Optimism is a subjective measure of worldview. In the field of positive psychology, optimism is believed to improve overall psychological and physical health. The main purpose of the present study is to examine the relationship between sleep duration and reported levels of optimism in Generation Z students, aged 17 to 24. The hypothesis for this study is that optimism and duration of sleep will have a significantly …
The Influence Of Autism Linked Gene Topoisomerase 3b (Top3b) On Neural Development In Zebrafish, Sydney Doolittle
The Influence Of Autism Linked Gene Topoisomerase 3b (Top3b) On Neural Development In Zebrafish, Sydney Doolittle
Honors College Theses
Autism Spectrum Disorder is a class of developmental disabilities characterized by a spectrum of social, communication, and behavioral impairments in affected individuals. Studies have shown these defects stem from abnormal brain development during critical periods during early development. The underlying genetic cause of these impairments is not well understood but is believed to be a combination of a complex pairing of genetic and environmental factors. One of the genetic factors that has been recognized to influence the phenotypic symptoms of ASD is the enzyme topoisomerase 3β (top3β.) Topoisomerases are responsible for the prevention of supercoiling during DNA replication. Top3β is …
Botantic Garden News, Georgia Southern University
Botantic Garden News, Georgia Southern University
Botanic Garden Online News (2020-2021)
- Online Plant Sale- Starts Fri March 26th
Botantic Garden News, Georgia Southern University
Botantic Garden News, Georgia Southern University
Botanic Garden Online News (2020-2021)
- Free Guided Walking Tour/ Fri March 12 at Noon
Pornography: Social, Emotional And Mental Implications Among Adolescents, William Kelly Canady
Pornography: Social, Emotional And Mental Implications Among Adolescents, William Kelly Canady
National Youth Advocacy and Resilience Conference
This presentation will explain the historical development of pornography. It will highlight four segments: 1- Porn’s impact on brain development of reward pathways, ultimately increasing the appetite for more porn. 2- Porn can be a false substitute for real intimacy, resulting in decreased sexual satisfaction with a real person and increased verbal and physical aggression. 3- Porn promotes sex trafficking, promotes multiple sex partners and reduced STD prevention. 4- A review of interventions available to assist clients in navigating a lifestyle away from pornography.
The Relationship Between The Contact Force At The Ankle Hook And The Hamstring Muscle Force During The Nordic Hamstring Exercise, Mianfang Ruan, Li Li, Weiping Zhu, Tianchen Huang, Xie Wu
The Relationship Between The Contact Force At The Ankle Hook And The Hamstring Muscle Force During The Nordic Hamstring Exercise, Mianfang Ruan, Li Li, Weiping Zhu, Tianchen Huang, Xie Wu
Department of Health Sciences and Kinesiology Faculty Publications
A novel device has been developed to assess eccentric hamstring strength during the Nordic hamstring exercise (NHE) by measuring the contact force at the ankle hook (brace). The purpose of this study was to determine the correlation between the force measured at the ankle hook and the hamstring force estimated by a low extremity model. Thirteen male college sprinters were recruited to perform NHE on an instrumented device Nordbord (Vald Performance, Australia). Contact forces were measured at a sampling rate of 50 Hz at the hooks using the uniaxial load cells. 3D kinematics were measured simultaneously at a sampling rate …
Botantic Garden News, Georgia Southern University
Botantic Garden News, Georgia Southern University
Botanic Garden Online News (2020-2021)
- Spring Plant Sale Begins March 26
Botantic Garden News, Georgia Southern University
Botantic Garden News, Georgia Southern University
Botanic Garden Online News (2020-2021)
- POSTPONED, NOW 2/26 at Noon – Celebrate Georgia Arbor Day / Native Tree Walking Tour & Planting Demo
The Relationship Between Emotion Regulation And Health Status In Southeast Rural Firefighters, Catherine G. Gallagher
The Relationship Between Emotion Regulation And Health Status In Southeast Rural Firefighters, Catherine G. Gallagher
Electronic Theses and Dissertations
Firefighters are continuously interacting within high-stress and high physical demanding tasks. Minimal research investigates the influence of emotion regulation on health status among firefighters. PURPOSE: To determine the relationship between emotion regulation constructs and health status fitness metrics in a sample of career firefighters from southeast Georgia. METHODS: Forty-four career firefighters from southeast rural Georgia participated in a yearly fitness assessment. Body composition and fitness variables were collected. Emotion regulation was examined using the 36-item Difficulties in Emotion Regulation Survey. Inferential analysis including a Kruskal Wallis test was used to reveal differences between variables in health status (i.e., Perceived Health, …
Campus Recreation And Fitness Center Utilization During The Covid-19 Pandemic, Keagan Kiely, William Mase, Bridget F. Melton, Haresh Rochani Dr.
Campus Recreation And Fitness Center Utilization During The Covid-19 Pandemic, Keagan Kiely, William Mase, Bridget F. Melton, Haresh Rochani Dr.
Department of Health Sciences and Kinesiology Faculty Publications
Background
The impact of the COVID-19 pandemic has far reaching effects for college students' health and physical activity behaviors. This analysis focuses on university student fitness center usage pre and during the COVID-19 pandemic. Researchers hypothesized a reduction in fitness center utilization when comparing Fall 2019 to Fall 2020 utilization rates.
Methods
Patterns of the recreation center and fitness center utilization during the COVID-19 pandemic are compared to pre-pandemic patterns of a matched time period in the previous academic year in an observational study. Overall utilization was evaluated using secondary data from the university’s recreation center data system. Six weeks …
Reliability And Validity Of Three Clinical Methods To Measure Lower Extremity Muscle Power, Mattie E. Pontiff, Li Li, Noelle G. Moreau
Reliability And Validity Of Three Clinical Methods To Measure Lower Extremity Muscle Power, Mattie E. Pontiff, Li Li, Noelle G. Moreau
Department of Health Sciences and Kinesiology Faculty Publications
Background: Lower extremity muscle power is critical for daily activities and athletic performance in clinical populations. Objective: The purpose of this study was to determine the reliability and validity of 3 clinically feasible methods to measure lower extremity muscle power during a leg press. Methods: Ten of 26 subjects performed 2 sessions of 5 submaximal leg presses separated by 3-7 days in this repeated-measures cross-sectional design; the remaining performed 1 test session. Power was calculated independently for each method [simple video, linear position transducer, and accelerometer] and compared to the reference force plate. Test-retest reliability was evaluated using intraclass correlation …
Ankle-Knee Initial Contact Angle And Latency To Maximum Angle Are Affected By Prolonged Run, Sydni Wilhoite, Jessica Mutchler, Barry Munkasy, Li Li
Ankle-Knee Initial Contact Angle And Latency To Maximum Angle Are Affected By Prolonged Run, Sydni Wilhoite, Jessica Mutchler, Barry Munkasy, Li Li
Department of Health Sciences and Kinesiology Faculty Publications
The initial contact and midstance angles may influence injury risk. Previous literature has not assessed these angles under the influence of new footwear for a non-exhaustive prolonged run or the relationship between the angles. To assess lower extremity kinematic changes and the relationship between kinematic parameters at initial contact and midstance with prolonged running under the influence of different types of footwear. Twelve experienced, recreational runners (6 male; 6 female; 24.8 ± 8.4 years; 70.5 ± 9.3 kg; 174.1 ± 9.7 cm) ran for 31 minutes at a self-selected pace for three testing sessions wearing maximalist, habitual, and minimalist shoes. …
Transcriptional Regulation Of Duox-Dependent Reactive Oxygen Species Production Against Bacterial Infection In The Gut Of Cat Fleas (Ctenocephalides Felis)., Ryne W. Maness
Electronic Theses and Dissertations
Fleas (Order Siphonaptera) are opportunistic blood feeders that parasitize a wide variety of mammals and birds. They also transmit bacterial pathogens that cause diseases in humans (e.g., murine typhus, flea-borne spotted fever, cat scratch disease, and plague). Because they acquire infectious pathogens while blood feeding, the flea gut is considered to be the initial site of infection. While immune responses have been well documented in other disease vectors, few studies have identified the immune mechanisms involved in defense of the flea gut. In other hematophagous insects, the synthesis of reactive oxygen species (ROS) is the immediate immune defense mechanism against …
Long-Term Disability Following A Hamstring Injury, Savannah Mclain
Long-Term Disability Following A Hamstring Injury, Savannah Mclain
Electronic Theses and Dissertations
PURPOSE: Injuries to the hamstring complex are one of the most commonly seen lower extremity injuries in athletic populations. It is currently unknown how psychological or sociological factors affect an athlete after the recovery process has ended and if these factors play a role in re-injury rates relating to the hamstring. It is also unknown if athlete confidence level changes while in a fatigued state after an athlete returns to play from a hamstring injury. METHODS: Twenty-six physically active adults with and without a previous hamstring injury were recruited for this study. Participants completed a Qualtrics survey that …
Comparative Conservation Genomics Of A Suite Of Imperiled Freshwater Mussels, Scott C. Meyer
Comparative Conservation Genomics Of A Suite Of Imperiled Freshwater Mussels, Scott C. Meyer
Electronic Theses and Dissertations
Maintenance of genetic diversity is a critical component to the management and recovery of imperiled species. By ensuring that a species’ genetic diversity is maintained, issues like inbreeding depression and loss of local adaptation can be prevented. However, the genetic diversity of many species are not well-characterized, and the factors that influence a species’ genetic diversity are often not well understood. In the case of imperiled unionid freshwater mussels, it is important to conduct conservation genetic assessments to aid in their management and preserve genetic diversity. This is the first study to conduct a comparative conservation genomic assessment for eight …
Assessing Habitat Suitability Of Ribbed Mussels (Geukensia Demissa) In Georgia Salt Marshes By Examining Predicted Mussel Densities And Mussel Population Parameters, William K. Annis Jr
Assessing Habitat Suitability Of Ribbed Mussels (Geukensia Demissa) In Georgia Salt Marshes By Examining Predicted Mussel Densities And Mussel Population Parameters, William K. Annis Jr
Electronic Theses and Dissertations
Geukensia demissa (ribbed mussel) is an ecology important bivalve that has the potential to contribute to salt marsh restoration. Understanding the factors that contribute to the distribution of mussels can help inform managers on choosing locations to optimize the survivorship of mussels in restoration projects. This study sought to model mussel densities across the coast of Georgia and to compare predicted mussel densities with mussel population parameters as means to gauge habitat suitability. Mussel densities were collected through field surveys across a range of salt marshes along the coast of Georgia and were compared with spatial data such as distance …