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Discovering Novel Polyextremotolerant Fungi, And Determining Their Ecological Role Within The Biological Soil Crust Consortium, Erin Carr 2022 University of Nebraska-Lincoln

Discovering Novel Polyextremotolerant Fungi, And Determining Their Ecological Role Within The Biological Soil Crust Consortium, Erin Carr

Dissertations and Theses in Biological Sciences

The ecological niche of polyextremotolerant fungi within oligotrophic ecosystems such as biological soil crusts has not yet been determined. These fungi persist in locations where nutrients are depleted while simultaneously surrounded by autotrophic microbes such as algae and cyanobacteria. Yet it has not been shown that they are engaging in any exchange of nutrients the way lichens do. However, there is seemingly no other way for these fungi to obtain vital nutrients, such as carbon or nitrogen, other than from these microbes. Here we have isolated polyextremotolerant fungi from cold desert biological soil crusts which are a microbial biofilm that ...


Assessing The Effects Of Elevation On The Peaks Of Otter Salamander (Plethodon Hubrichti) Using Body Condition Index, Norman Reichenbach, Timothy R. Brophy, Hannah Suber, Elisabeth Russell, Hannah Kinsley, Liam Cusack, Cetia Dawson, Savannah Dunn, Olivia de Araujo 2022 Liberty University

Assessing The Effects Of Elevation On The Peaks Of Otter Salamander (Plethodon Hubrichti) Using Body Condition Index, Norman Reichenbach, Timothy R. Brophy, Hannah Suber, Elisabeth Russell, Hannah Kinsley, Liam Cusack, Cetia Dawson, Savannah Dunn, Olivia De Araujo

Faculty Publications and Presentations

The Peaks of Otter Salamander (Plethodon hubrichti; POS) is a montane species found at elevations above 442 m within a 117 km2 area of the Blue Ridge Mountains in central Virginia. In allopatric areas (areas without the Eastern Red-backed Salamander, P. cinereus, a known competitor), POS body condition was hypothesized to decline both above and below some optimal elevation. Decreased condition at lower elevations would most likely be due to increased temperatures and lower relative humidities, which may adversely affect the ability of salamanders to forage effectively on vegetation due to desiccation risk. Decreased condition at elevations above the optimum ...


Abundance, Site-Fidelity, And Association Patterns Of Coastal Bottlenose Dolphins (Tursiops Truncatus) Off Southeast Florida, Graysen D. Boehning 2022 Nova Southeastern University

Abundance, Site-Fidelity, And Association Patterns Of Coastal Bottlenose Dolphins (Tursiops Truncatus) Off Southeast Florida, Graysen D. Boehning

All HCAS Student Capstones, Theses, and Dissertations

The coastal bottlenose dolphin is well studied throughout its natural range, however, most of the study areas comprised wide, well-protected habitats such as bays and estuaries, and not narrow coastal sandbanks. This study identifies a residential group of coastal bottlenose dolphins utilizing the narrow sandbanks within the Northwestern Atlantic waters off the coast of Palm Beach County, Florida, USA. From 2014-2020, 313 boat surveys were conducted, and 585 individual dolphins were identified using photo-ID. Twenty-four animals were determined to be full-time and 66 animals were determined to be part-time residents. Full-time and part-time residents associated in three social tribes, with ...


Transcriptome Assembly And Characterization Of Chemoreceptors For Corn Rootworms, Bailee Egan 2022 University of Nebraska-Lincoln

Transcriptome Assembly And Characterization Of Chemoreceptors For Corn Rootworms, Bailee Egan

Dissertations and Theses in Biological Sciences

The western corn rootworm (Diabrotica virgifera virgifera LeConte) is the most important insect pest of corn in the United States Corn Belt, costing the agricultural industry over two billion dollars per year. As current management practices have been losing their effectiveness, new targets for corn rootworm control need to be explored. In this thesis, we focused on identifying rootworm chemoreceptors, which can be considered for potential targets for management. Transcriptomes from seven life stages were assembled for the western corn rootworm as well as two other related corn rootworm species, the northern corn rootworm (D. barberi) and the southern corn ...


Leaf Development In Medicago Truncatula, Liren Du, Samuel Winright Adkins, Mingli Xu 2022 University of South Carolina

Leaf Development In Medicago Truncatula, Liren Du, Samuel Winright Adkins, Mingli Xu

Faculty Publications

Forage yield is largely dependent on leaf development, during which the number of leaves, leaflets, leaf size, and shape are determined. In this mini-review, we briefly summarize recent studies of leaf development in Medicago truncatula, a model plant for legumes, with a focus on factors that could affect biomass of leaves. These include: floral development and related genes, lateral organ boundary genes, auxin biosynthesis, transportation and signaling genes, and WOX related genes.


Worldwide Consequences Of Covid-19 On Research In Stem, Michelle Hoang, Santanu De 2022 Nova Southeastern University

Worldwide Consequences Of Covid-19 On Research In Stem, Michelle Hoang, Santanu De

Biology Faculty Articles

A global public health emergency like the Coronavirus Infectious Disease 2019 (COVID-19) pandemic requires accurate and timely data collection in the research community. High-impact research in science, technology, engineering, and mathematics (STEM) has been prioritized in the fight against COVID-19. The present study analyzed the consequences of COVID-19 on STEM research and the collaboration between research institutions and industries worldwide. It was noted that COVID19 had caused significant delays in non-COVID-19-related research projects and the onset of several remote studies. Most importantly, researchers in the STEM fields directed their attention and expertise to help mitigate virus transmission, treat patients, and ...


Distribution Of Carrion-Associated Beetles And Their Phoretic Mites Along An Urban-Rural Gradient In Northeast Alabama, Kennedy Norris 2022 Jacksonville State University

Distribution Of Carrion-Associated Beetles And Their Phoretic Mites Along An Urban-Rural Gradient In Northeast Alabama, Kennedy Norris

Theses

Global insect decline has been linked to urbanization, most notably by habitat fragmentation. These insects perform important ecological functions such as pollination, managing pests, and decomposing carrion to recycle nutrients back into the environment. Despite the importance of nutrient recycling behavior displayed by carrion-associated beetles, little research has been done on them in the southeastern US. Previous studies have found a relationship between urbanization, less favorable environmental conditions, carrion availability, and decreased insect diversity. However, no studies have been conducted in the southeastern United States on the relationship of these beetles to their environment despite having the highest rates of ...


Access To Online Formative Assessments In Introductory Biology Courses: Investigating Barriers To Student Engagement, Allison Upchurch 2022 University of Nebraska-Lincoln

Access To Online Formative Assessments In Introductory Biology Courses: Investigating Barriers To Student Engagement, Allison Upchurch

Dissertations and Theses in Biological Sciences

Instructors use a variety of online formative assessment (FA) activities to support learning outside of class. Previous studies have revealed barriers for students in online courses, but little is known about the barriers students experience when completing online FA assignments. Understanding these barriers to access is critical to fostering more inclusive learning for all students. Using a framework from previous work in online learning, we examined student perceptions of online FA access with respect to five barrier categories: technical resources, instructor organization, social interactions, personal engagement, and learning environment. We developed and administered a survey to over 1200 undergraduate biology ...


Water Availability Dictates How Plant Traits Predict Demographic Rates, Alice E. Stears, Peter B. Adler, Dana M. Blumenthal, Julie A. Kray, Kevin E. Mueller 2022 University of Wyoming

Water Availability Dictates How Plant Traits Predict Demographic Rates, Alice E. Stears, Peter B. Adler, Dana M. Blumenthal, Julie A. Kray, Kevin E. Mueller

Biological, Geological, and Environmental Faculty Publications

A major goal in ecology is to make generalizable predictions of organism responses to environmental variation based on their traits. However, straightforward relationships between traits and fitness are rare and likely to vary with environmental context. Characterizing how traits mediate demographic responses to the environment may enhance the predictions of organism responses to global change. We synthesized 15 years of demographic data and species-level traits in a shortgrass steppe to determine whether the effects of leaf and root traits on growth and survival depended on seasonal water availability. We predicted that (1) species with drought-tolerant traits, such as lower leaf ...


Evaluation Of Silver Nanoparticles Attached To Methylene Blue As An Antimicrobial Agent And Its Cytotoxicity, Somon Hakimov 2022 Western Kentucky University

Evaluation Of Silver Nanoparticles Attached To Methylene Blue As An Antimicrobial Agent And Its Cytotoxicity, Somon Hakimov

Masters Theses & Specialist Projects

Antibiotics resistance is considered as one of the greatest public health challenges of our time. In this work, we have synthesized silver nanoparticles (Ag NPs) using pulsed liquid ablation in different medium of growth and later combined with methylene blue (MB) to evaluate its potential as an effective photodynamic therapy agent. Ag NPs were synthesized by pulsed laser ablation technique in Polyvinylpyrrolidone (PVP), citrate, and Polyvinyl alcohol (PVA). The Ag NPs were characterized using transmission electron microscopy (TEM), UV-Visible (UV-Vis), and photoluminescence (PL) spectra. Next, Ag NPs were coupled with MB and used to deactivate the Gram-negative bacteria, Escherichia coli ...


Near-Infrared Spectroscopy Aids Ecological Restoration By Classifying Variation Of Taxonomy And Phenology Of A Native Shrub, Brecken C. Robb, Peter J. Olsoy, Trevor T. Caughlin, Stephanie J. Galla, Marcella R. Fremgen-Tarantino, Jordan D. Nobler, Jennifer S. Forbey 2022 Boise State University

Near-Infrared Spectroscopy Aids Ecological Restoration By Classifying Variation Of Taxonomy And Phenology Of A Native Shrub, Brecken C. Robb, Peter J. Olsoy, Trevor T. Caughlin, Stephanie J. Galla, Marcella R. Fremgen-Tarantino, Jordan D. Nobler, Jennifer S. Forbey

Biology Faculty Publications and Presentations

Plant communities are composed of complex phenotypes that not only differ among taxonomic groups and habitats but also change over time within a species. Restoration projects (e.g. translocations and reseeding) can introduce new functional variation in plants, which further diversifies phenotypes and complicates our ability to identify locally adaptive phenotypes for future restoration. Near-infrared spectroscopy (NIRS) offers one approach to detect the chemical phenotypes that differentiate plant species, populations, and phenological states of individual plants over time. We use sagebrush (Artemisia spp.) as a case study to test the accuracy by which NIRS can classify variation within taxonomy and ...


Methanogen Metabolic Flexibility, Sean Carr 2022 University of Nebraska-Lincoln

Methanogen Metabolic Flexibility, Sean Carr

Dissertations and Theses in Biological Sciences

Methanogens are obligately anaerobic archaea which produce methane as a byproduct of their respiration. They are found across a wide diversity of environments and play an important role in cycling carbon in anaerobic spaces and the removal of harmful fermentation byproducts which would otherwise inhibit other organisms. Methanogens subsist on low-energy substrates which requires them to utilize a highly efficient central metabolism which greatly favors respiratory byproducts over biomass. This metabolic strategy creates high substrate:product conversion ratios which is industrially relevant for the production of biomethane, but may also allow for the production of value-added commodities. Particularly of interest ...


The Effect Of Salvia Fruticosa Water Extract In Acetic-Acid-Induced Colitis In Mice, Rim Mrad, Suzana Salhab, Miriam Al-Battal, Jamilah Borjac 2022 Masters Student, Faculty of Science, Beirut Arab Un

The Effect Of Salvia Fruticosa Water Extract In Acetic-Acid-Induced Colitis In Mice, Rim Mrad, Suzana Salhab, Miriam Al-Battal, Jamilah Borjac

BAU Journal - Science and Technology

Inflammatory bowel disease (IBD) including Ulcerative colitis (UC) and Crohn’s disease, is a chronic condition of the intestine characterized by an uncontrolled inflammatory response. Current biologic treatments developed to treat IBD are expensive and associated with significant side effects; thus, alternative approaches are required. Recently, herbal concoctions have emerged as promising intervention. This study investigates the protective effects of Salvia fruticosa (SF) against acetic acid-induced colitis in mice, a model of human inflammatory bowel disease (IBD). Mice were divided into four groups (n=3). IBD was induced with acetic acid (6%). SF was administered by gavage at 1.5ug ...


Bio 120: General Biology Oer Curation, Erica L. Schiller 2022 Grand Valley State University

Bio 120: General Biology Oer Curation, Erica L. Schiller

Curated OER Collections

This OER curation is an annotated bibliography of prospective OER for the GVSU course BIO 120: General Biology.


Table Of Contents, 2022 University of South Carolina

Table Of Contents

Journal of the South Carolina Academy of Science

No abstract provided.


The Mayfly Newsletter, Donna Giberson 2022 Southwestern Oklahoma State University

The Mayfly Newsletter, Donna Giberson

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


Method Of Hybrid Control Based Of Dynamic Objects Of Neuro-Fuzzy Inference, Noilakhon Yakubova 2022 Tashkent State Technical University

Method Of Hybrid Control Based Of Dynamic Objects Of Neuro-Fuzzy Inference, Noilakhon Yakubova

Karakalpak Scientific Journal

The Results of interaction of the work is development of a method of control that allows simplifying, automating and unifying the process of design of the hybrid systems which are a basis of modern automation. To achieve a definite purpose, a method of control of a technical object based on the construction of an adaptive system of neuro-fuzzy inference is developed. The objects of the system of neuro-fuzzy inference are the classical and neuro-fuzzy models of control. Information exchange between models is provided by means of the developed hybrid control system. The result of the interaction of the two models ...


Application Of A Synergetic Approach To The Problem Of Synthesizing An Intelligent Control System For Chemical Reactors, Komil Usmanov 2022 Tashkent Chemical-Technological Institute

Application Of A Synergetic Approach To The Problem Of Synthesizing An Intelligent Control System For Chemical Reactors, Komil Usmanov

Karakalpak Scientific Journal

The article deals with the synthesis of effective algorithms for controlling a chemical reactor and developed a intelligent synergistic controller for a class of indefinite nonlinear dynamic systems. A synergetic control scheme is proposed for solving the control problem for nonlinear systems. Non-linear systems with configurations and parameters that change over time require a completely non-linear model and adaptive control scheme for a practical operating environment. The synthesis of control laws is performed by the method of analytical design of aggregated controllers (ADAR).


Development Of The Implementation Of Iot Monitoring System Based On Node-Red Technology, Anvar Kabulov, Inomjon Yarashov, Salamat Mirzataev 2022 National University of Uzbekistan named after Mirzo Ulugbek

Development Of The Implementation Of Iot Monitoring System Based On Node-Red Technology, Anvar Kabulov, Inomjon Yarashov, Salamat Mirzataev

Karakalpak Scientific Journal

This article describes how to design and implement a process for storing environmental information in a database using the Internet of Things. The problems that need to be solved with the help of this IoT system are the growing demand for forecasts in the world, the demand of the world market for a new sustainable method of implementing the digitization environment through the Internet of Things. The design was implemented using Arduino, Node-Red and sensors, selected when choosing a component based on the required parameters and sent to the database for monitoring and processing. A study of previous work and ...


Theoretical Features Of Foreign Systems Of Preschool Education, Ayjamal Bazarbaeva 2022 Nukus State Pedagogical Institute

Theoretical Features Of Foreign Systems Of Preschool Education, Ayjamal Bazarbaeva

Karakalpak Scientific Journal

This article analyzes the features of preschool education systems in foreign countries. The positive experience and features of some systems are highlighted. Comparison of domestic and foreign systems of preschool education is carried out.


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