Open Access. Powered by Scholars. Published by Universities.®

Biology Commons

Open Access. Powered by Scholars. Published by Universities.®

37,239 Full-Text Articles 72,469 Authors 8,368,909 Downloads 351 Institutions

All Articles in Biology

Faceted Search

37,239 full-text articles. Page 1 of 1315.

Transcription Factor Expression Landscape In Drosophila Embryonic Cell Lines, Robert A. Drewell, Daniel Klonaros, Jacqueline Dresch 2024 Clark University

Transcription Factor Expression Landscape In Drosophila Embryonic Cell Lines, Robert A. Drewell, Daniel Klonaros, Jacqueline Dresch

Biology

Background: Transcription factor (TF) proteins are a key component of the gene regulatory networks that control cellular fates and function. TFs bind DNA regulatory elements in a sequence-specific manner and modulate target gene expression through combinatorial interactions with each other, cofactors, and chromatin-modifying proteins. Large-scale studies over the last two decades have helped shed light on the complex network of TFs that regulate development in Drosophila melanogaster. Results: Here, we present a detailed characterization of expression of all known and predicted Drosophila TFs in two well-established embryonic cell lines, Kc167 and S2 cells. Using deep coverage RNA sequencing approaches we …


Effects Of Roadways On Seasonal Movement Strategies And Mate Location Success In An Imperiled Pit Viper (Crotalus Horridus), Elizabeth J. Noble 2024 Georgia College and State University, Milledgeville, GA 31061

Effects Of Roadways On Seasonal Movement Strategies And Mate Location Success In An Imperiled Pit Viper (Crotalus Horridus), Elizabeth J. Noble

Graduate Research Showcase

A detailed understanding of animal movement behavior is fundamental to effective conservation and management. Within populations, a diversity of movement strategies can be displayed in search of critical resources, and these strategies are influenced by multiple interacting factors related to individuals and the environment. Mating partners are one critical resource that often serves as a prominent selective force shaping movement during mating seasons. For many large-bodied snakes, such as pit vipers (Viperidae: Crotalinae), male mate- searching movements are the primary determinant of mate location success. During this time, males incur significant risks associated with elevated movement. In an increasingly human- …


Radiopaque Femnn-Mo Composite Drawn Filled Tubing Wires For Braided Absorbable Neurovascular Devices, Adam J. Griebel, Petra Maier, Henry D. Summers, Benjamin Clausius, Isabella Kanasty, Weilue He, Nicholas Peterson, Carolyn Czerniak, Alexander A. Oliver, David F. Kallmes, Ramanathan Kadirvel, Jeremy E. Schaffer, Roger J. Guillory 2024 Fort Wayne Metals

Radiopaque Femnn-Mo Composite Drawn Filled Tubing Wires For Braided Absorbable Neurovascular Devices, Adam J. Griebel, Petra Maier, Henry D. Summers, Benjamin Clausius, Isabella Kanasty, Weilue He, Nicholas Peterson, Carolyn Czerniak, Alexander A. Oliver, David F. Kallmes, Ramanathan Kadirvel, Jeremy E. Schaffer, Roger J. Guillory

Michigan Tech Publications, Part 2

Flow diverter devices are small stents used to divert blood flow away from aneurysms in the brain, stagnating flow and inducing intra-aneurysmal thrombosis which in time will prevent aneurysm rupture. Current devices are formed from thin (∼25 μm) wires which will remain in place long after the aneurysm has been mitigated. As their continued presence could lead to secondary complications, an absorbable flow diverter which dissolves into the body after aneurysm occlusion is desirable. The absorbable metals investigated to date struggle to achieve the necessary combination of strength, elasticity, corrosion rate, fragmentation resistance, radiopacity, and biocompatibility. This work proposes and …


Application Of Criminology In Urban Ecology And Evolution: Routine Activity Theory And Field Equipment Disappearance Dynamics, Ignacy Stadnicki, Michela Corsini, Marta Szulkin 2024 University of Warsaw

Application Of Criminology In Urban Ecology And Evolution: Routine Activity Theory And Field Equipment Disappearance Dynamics, Ignacy Stadnicki, Michela Corsini, Marta Szulkin

Biology Faculty Publications and Presentations

Research in urban ecology and evolution relies on the use of deployable scientific equipment. If left unattended in the field, scientific equipment may be prone to vandalism and theft, especially in the urban space. Here, we empirically applied a theory derived from the field of criminology, specifically the Routine Activity Theory (RAT) framework, to predict disappearance rates of scientific equipment in an ongoing urban ecology research project. First, we tested a routinely applied method of equipment protection – labelling – and investigated whether equipment disappearance varied with label information content and message tone. Second, we examined whether equipment attributes (price, …


Mesenchymal Stem Cells In Autoimmune Disease: A Systematic Review And Meta-Analysis Of Pre-Clinical Studies, Hailey N. Swain, Parker D. Boyce, Bradley A. Bromet, Kaiden Barozinksy, Lacy Hance, Dakota Shields, Gayla R. Olbricht, Julie A. Semon 2024 Missouri University of Science and Technology

Mesenchymal Stem Cells In Autoimmune Disease: A Systematic Review And Meta-Analysis Of Pre-Clinical Studies, Hailey N. Swain, Parker D. Boyce, Bradley A. Bromet, Kaiden Barozinksy, Lacy Hance, Dakota Shields, Gayla R. Olbricht, Julie A. Semon

Mathematics and Statistics Faculty Research & Creative Works

Mesenchymal Stem Cells (MSCs) Are of Interest in the Clinic Because of their Immunomodulation Capabilities, Capacity to Act Upstream of Inflammation, and Ability to Sense Metabolic Environments. in Standard Physiologic Conditions, They Play a Role in Maintaining the Homeostasis of Tissues and Organs; However, there is Evidence that They Can Contribute to Some Autoimmune Diseases. Gaining a Deeper Understanding of the Factors that Transition MSCs from their Physiological Function to a Pathological Role in their Native Environment, and Elucidating Mechanisms that Reduce their Therapeutic Relevance in Regenerative Medicine, is Essential. We Conducted a Systematic Review and Meta-Analysis of Human MSCs …


The Interactions Between Drought Tolerant Corn Hybrids And Plant Water-Stress On Weeds And Their Host Capability For Spider Mites, Mercy Adhiambo Odemba 2024 Utah State University

The Interactions Between Drought Tolerant Corn Hybrids And Plant Water-Stress On Weeds And Their Host Capability For Spider Mites, Mercy Adhiambo Odemba

All Graduate Theses and Dissertations, Fall 2023 to Present

With climate change, it is predicted that more frequent high temperatures and drought severity will lead to an increase in damage caused by pests that thrive under these conditions. Spider mite outbreaks, for example, are associated with plant waterstress and there is evidence that some weeds are more resilient and adapted to drought than some crops, leading to major concerns for the management of these two pest types. Weeds directly compete with crops for limited resources, but what is unclear is which weeds harbor spider mites and whether they exacerbate the impact of spider mites on corn crops under water-stressed …


The Evolution Of A Response To Smoke Within The Arthropoda, Adam Miles 2024 Western Kentucky University

The Evolution Of A Response To Smoke Within The Arthropoda, Adam Miles

Masters Theses & Specialist Projects

Many animals have a survival instinct to flee in response to fire, but do they respond to smoke alone? Many arthropods respond to fire or smoke by moving in the opposite direction (a negative taxis) to obtain shelter. At the species level, taxa that have adapted a behavioral response to fire increase their fitness. This response behavior has been observed in many terrestrial arthropods. Still, the behavior is currently unknown for marine, aquatic, or cave arthropods, which are atypically exposed to smoke or fire. This project assesses how often behavioral adaptation to smoke avoidance may have evolved within Arthropoda. Twenty-two …


Effect Of Glucocorticoid Blockade On Inflammatory Responses To Acute Sleep Fragmentation In Male Mice, Zim Hasan 2024 Western Kentucky University

Effect Of Glucocorticoid Blockade On Inflammatory Responses To Acute Sleep Fragmentation In Male Mice, Zim Hasan

Masters Theses & Specialist Projects

The association between sleep and the immune-endocrine system is well recognized, but the nature of that relationship is not well understood. Sleep fragmentation induces a pro-inflammatory response in peripheral tissues and brain, but it also activates the hypothalamic-pituitary-adrenal (HPA) axis, releasing glucocorticoids (GCs) (cortisol in humans and corticosterone in mice). It is unclear whether this rapid release of glucocorticoids acts to potentiate or dampen the inflammatory response in the short term. The purpose of this study was to determine whether blocking or suppressing glucocorticoid activity will affect the inflammatory response from acute sleep fragmentation (ASF). Male C57BL/6J mice were injected …


Climate-Smart Agriculture In Southern Kenya: An Assessment Of Factors Influencing Crop Development And Productivity, Matthew Bowers 2024 Western Kentucky University

Climate-Smart Agriculture In Southern Kenya: An Assessment Of Factors Influencing Crop Development And Productivity, Matthew Bowers

Masters Theses & Specialist Projects

Globally, the adverse effects of climate change are forcing farmers to adapt their practices or risk crop failures. Throughout Sub-Saharan Africa, agriculture is the largest source of food, income, and employment, so threats such as climate change can put millions of lives and livelihoods in peril if modifications are not made to the existing system. Climate-Smart Agriculture (CSA) is a potential solution, as CSA techniques aim to increase the productivity and resilience of land affected by climate change. While CSA is a relatively new conceptual approach, many traditional and Indigenous techniques can be considered “climate-smart”. Understanding what biotic and abiotic …


Microbiome Assembly And Function In The Solitary Mason Bee, Osmia Lignaria (Megachilidae), Bailey Crowley 2024 Utah State University

Microbiome Assembly And Function In The Solitary Mason Bee, Osmia Lignaria (Megachilidae), Bailey Crowley

All Graduate Theses and Dissertations, Fall 2023 to Present

Animal-microbe interactions can influence host biology, ecology, and evolution. The assembly and function of microbes found within animal hosts oftentimes depends on which species are involved. Advances in sequencing technologies have permitted the exploration of host-microbe interactions in a variety of animals, including bees. Early research aimed at understanding the microbiomes of social bees, such as honey bees and bumble bees, found that microbes prevent the spoilage of stored pollen, breakdown indigestible nutrients into smaller molecules available for uptake by the host, and also protect the host from pathogens. When environmental stressors, such as increased temperatures, disrupt the microbiome, the …


Early Onset Alzheimer’S Disease Markers In Mouse Hippocampus Unveiled By Single-Cell Transcriptomic Analysis Following Cranial Radiotherapy, Tuba Aksoy 2024 The Texas Medical Center Library

Early Onset Alzheimer’S Disease Markers In Mouse Hippocampus Unveiled By Single-Cell Transcriptomic Analysis Following Cranial Radiotherapy, Tuba Aksoy

Dissertations & Theses (Open Access)

Cranial radiation therapy plays an integral role in the treatment of brain tumors but can lead to progressive cognitive deficits in survivors by mechanisms that are poorly understood. To develop preventive or mitigative strategies, it is crucial to better understand the underlying pathogenesis of radiation-induced cognitive impairments. The study investigated single-cell transcriptomics and DNA methylation changes as potential drivers of persistent cellular dysfunction after radiation exposure, specifically concentrating on the CA1-3 regions of the hippocampus and the prefrontal cortex due to their role in cognitive functions. Thirteen-week-old mice underwent whole-brain radiation at clinically relevant doses. Following whole-brain radiation, an assessment …


The Potential Influence Of Immune Modulatory Molecules (Tgf-Βiii And Ctla-4) In Pathogenicity Of Pcos, Mustafa Riyadh Abdullah, Hazima Mossa Alabassi 2024 Department of Biology, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad, Baghdad, Iraq.

The Potential Influence Of Immune Modulatory Molecules (Tgf-Βiii And Ctla-4) In Pathogenicity Of Pcos, Mustafa Riyadh Abdullah, Hazima Mossa Alabassi

Karbala International Journal of Modern Science

Polycystic ovary syndrome (PCOS) is characterised by chronic anovulation, hyperandrogenism, polycystic ovaries, and immunological dysregulation. Immune homeostasis and inflammation management require immune functions. T-regulatory cells (Tregs) regulate PCOS's immune system, inflammation, insulin resistance, ovarian function, and homeostasis. Transforming growth factor βIII (TGF-βIII) and Cytotoxic-T-lymphocyte-associated-protein-4 (CTLA-4) receptors on the surfaces of Treg cells are important for controlling the immune system. The study included 68 PCOS patients and 22 non-PCOS women controls aged 20–45. The waist-hip ratio (WHR) determines obesity. We evaluated serum levels and gene expression of TGF-βIII and CTLA-4 via ELISA and real-time PCR. Women with PCOS had significantly higher …


Enhanced Optoelectronics Performance Of Hybrid Self Power Photodetectors Go: Tio2- Ad / N-Si Heterojunctions, Mohammed J. AlSultani, Maysoon F. Alias 2024 Physics Department, College of Science, University of Baghdad, Jadriya, Baghdad, Iraq.

Enhanced Optoelectronics Performance Of Hybrid Self Power Photodetectors Go: Tio2- Ad / N-Si Heterojunctions, Mohammed J. Alsultani, Maysoon F. Alias

Karbala International Journal of Modern Science

A GO:TiO2/n-Si heterostructure has been submerged in an anthocyanin dye solution that extracted from the red cabbage plant creates a high responsivity, self-powered UV, and visible photodetectors fabricated by the spray pyrolysis technique. The GO concentrations are varied, whereas TiO2 is fixed. Thin films' structure, shape, and optical characteristics were examined using X-ray diffraction, field emission scanning electron microscopy, and UV-Vis spectrophotometers respectively. Island-like polycrystalline film powders with grain boundaries and granular shapes are created. Two direct energy gaps between 3.33-3.02 and 2.39-2.04 eV exist in all films. J-V characteristics were examined. The saturation current density (J …


Fungi Of Lambuth: A Field Guide, Kelly Maust, Shawn P. Brown, Elizabeth Weston 2024 University of Memphis

Fungi Of Lambuth: A Field Guide, Kelly Maust, Shawn P. Brown, Elizabeth Weston

Open Access Textbooks

Fungi of Lambuth is an open-access, beginner-level field guide designed to introduce University of Memphis, Lambuth faculty, staff, and students to the joys of mushroom hunting, and to provide an overview of the types of mushrooms that can be found right on our campus (located at 705 Lambuth Blvd. in Jackson, TN).


Records Of The Red-Bellied Snake (Storeria Occipitomaculata) In Central And Northeastern Nebraska, Taylor Lowe, Sarah M. Bailey, Dan D. Fogell, Keith Geluso 2024 University of Nebraska at Kearney

Records Of The Red-Bellied Snake (Storeria Occipitomaculata) In Central And Northeastern Nebraska, Taylor Lowe, Sarah M. Bailey, Dan D. Fogell, Keith Geluso

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Red-bellied Snakes (Storeria occipitomaculata) are a distinctive, small species that live in moist woodlands throughout much of eastern North America. In the Great Plains, isolated populations exist in South Dakota, Wyoming, and Nebraska. In Nebraska, the only known extant population occurs in wooded riparian habitats along the Big Bend Reach of the Platte River in southcentral parts of the state. Herein, we report on new county records of Red-bellied Snakes in Nebraska, with two observations from Merrick County along the Platte River adjacent to known populations and two observations of a new population in the extreme northeastern part …


Short-Term Time-Series Observations Of Phytoplankton Light-Absorption And Productivity In Prydz Bay, Coastal Antarctica, Sarat C. Tripathy, Anvita U. Kerkar, P. Sabu, Sunil K. Padhi, Sudarsana R. Pandi, Amit Sarkar, Bhaskar V. Parli, Rahul Mohan 2024 ESSO-National Centre for Polar and Ocean Research (NCPOR)

Short-Term Time-Series Observations Of Phytoplankton Light-Absorption And Productivity In Prydz Bay, Coastal Antarctica, Sarat C. Tripathy, Anvita U. Kerkar, P. Sabu, Sunil K. Padhi, Sudarsana R. Pandi, Amit Sarkar, Bhaskar V. Parli, Rahul Mohan

Biology Faculty Publications and Presentations

The optical characteristics of coastal Antarctic waters exhibit complexity due to the dynamic hydrography influenced by meltwater intrusion, which alters nutrient levels, thermohaline structure, and optically active substances (OAS) regimes. Studies on bio-optical variability and its implications on phytoplankton productivity (PP) are scanty in coastal polar regions. On this backdrop, time-series measurements (72 h at 6 h intervals) of bio-optical properties such as phytoplankton biomass (chlorophyll-a), absorption (aph), and total suspended matter (TSM) concurrently with PP were measured to understand their interplay and variability in relation to the ambient physicochemical settings in the under-sampled Prydz Bay, coastal Antarctica. Our findings …


Lymphoid Tissues Contribute To Plasma Viral Clonotypes Early After Antiretroviral Therapy Interruption In Siv-Infected Rhesus Macaques, Antonio Solis-Leal, Nongthombam Boby, Suvadip Mallick, Yilun Cheng, Fei Wu, Grey De La Torre, Jason Dufour, Xavier Alvarez, Vinay Shivanna, Yaozhong Liu, Christine M. Fennessey, Jeffrey D. Lifson, Qingsheng Li, Brandon F. Keele, Binhua Ling 2024 Texas Biomedical Research Institute

Lymphoid Tissues Contribute To Plasma Viral Clonotypes Early After Antiretroviral Therapy Interruption In Siv-Infected Rhesus Macaques, Antonio Solis-Leal, Nongthombam Boby, Suvadip Mallick, Yilun Cheng, Fei Wu, Grey De La Torre, Jason Dufour, Xavier Alvarez, Vinay Shivanna, Yaozhong Liu, Christine M. Fennessey, Jeffrey D. Lifson, Qingsheng Li, Brandon F. Keele, Binhua Ling

School of Biological Sciences: Faculty Publications

The rebound-competent viral reservoir, composed of a virus that is able to persist during antiretroviral therapy (ART) and mediate reactivation of systemic viral replication and rebound viremia after ART interruption (ATI), remains the biggest obstacle to treating HIV infection. A better understanding of the cellular and tissue origins and the dynamics of viral populations that initiate rebound upon ATI could help develop therapeutic strategies for reducing the rebound-competent viral reservoir. In this study, barcoded simian immunodeficiency virus (SIV), SIVmac239M, was used to infect rhesus macaques to enable monitoring of viral barcode clonotypes contributing to virus detectable in plasma after ATI. …


Development Of A Simple And Accurate Polymerase Chain Reaction Screen For Human Papillomavirus In College Students, Emily Bishop, Owen Smith, Paul E. Richardson 2024 Coastal Carolina University

Development Of A Simple And Accurate Polymerase Chain Reaction Screen For Human Papillomavirus In College Students, Emily Bishop, Owen Smith, Paul E. Richardson

Journal of the South Carolina Academy of Science

Human Papillomavirus (HPV) is, according to the CDC, the most common sexually transmitted infection (STI) with many infections developing in a person's late teens or early 20’s. HPV is a nonenveloped, relatively small, icosahedral DNA virus that infects squamous epithelial cells. This infection can happen in genital, anal, and oral cavities. 90% of these infections will self-clear in two years according to the CDC. Of the 10% of infections that do not clear in two years, they could develop into carcinomas later in life. The goal of this developmental research is to create a polymerase chain reaction (PCR) that can …


The Role Of Exogenous Gibberellic Acid (Ga3) Application In Breaking Seed Dormancy In Clematis Hirsutissima​, Ashley Grace Ogle 2024 Eastern Washington University

The Role Of Exogenous Gibberellic Acid (Ga3) Application In Breaking Seed Dormancy In Clematis Hirsutissima​, Ashley Grace Ogle

2024 Symposium

Seed germination in plants is controlled by several mechanisms, including the presence of phytohormones like gibberellins, as well as environmental conditions, such as temperature, light, and moisture. Germination of dormant seeds can be promoted by the exogenous application of Gibberellic Acid (GA3). GA3 acts as a natural endogenous regulator of dormancy. Clematis hirsutissima, commonly known as Sugarbowls, in the plant family Ranunculaceae, is an important perennial species that contributes to biodiversity in western prairie ecosystems by providing habitat for pollinators and wildlife; and it is also a species that shows characteristic embryo dormancy. This native to Washington, has been used …


Microplastic Accumulation In The Marsh Periwinkle (Littoraria Irrorata), Sarah Keaton, Hannah Lukhard, Eli Windy, Manar Hasan 2024 DePaul University

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 …


Digital Commons powered by bepress