Digital Commons Network^™

Novel Prey And Foraging Behavior Of The California Whiptail (Aspidoscelis Tigris Munda) Along Two Intermittent Streams, Robert A. Leidy, Garrett A. Leidy, Kate I. Goldmann

Western North American Naturalist

During the spring of 2006, we observed predation by California whiptail (Aspidoscelis tigris munda) on the endemic coastal roach (Hesperoleucus venustus) from an isolated pool along an intermittent reach of Coyote Creek, Santa Clara County, California, USA. Our observation is the first published record, to the best of our knowledge, of a whiptail in the genus Aspidoscelis in the southwestern United States preying upon fish. We also report on subsequent observations during 2014, 2015, and 2020 of California whiptail foraging along isolated, intermittent stream pools within this watershed.


Durante la primavera del 2006, observamos depredación por …

Petal Diagrams And Seifert Surfaces, Jason Robert Gardiner

Theses and Dissertations

Petal diagrams of knots are projections of knots to the plane such that the diagram has exactly one crossing. Petal diagrams offer a convenient and combinatorial way of representing knots via their associated petal permutation. In this thesis we study the fundamental group and Seifert surfaces of knots in petal form. Using the Seifert-Van Kampen theorem, we give a group presentation of the fundamental group of the knot complement of a knot in petal form. We then discuss Seifert surfaces and use decomposition diagrams to represent the Seifert surfaces of knots in petal form. We finally give an algorithm to …

Highly Integrated And Miniaturized 3d Printed Serial Dilution Microfluidic Devices For Dose-Response Assays, Jose Luis Sanchez Noriega

Theses and Dissertations

The ability to generate a range of concentrations of various solutions rapidly and conveniently is an ongoing need in biotechnology. In this thesis we demonstrate how we took advantage of the full process control afforded by our recent custom high resolution 3D printer and resin advances to realize highly integrated and miniaturized microfluidic components for simultaneous on-chip serial dilution for dose-response assays. With judicious selection of mixed layer thicknesses and pixel-by-pixel dose control, we show that the diameter of 3D printed membrane valves can be reduced from 300 µm to 46 µm. We further introduce an entirely new kind of …

Synthesis And Biological Evaluation Of Pyrazolo[1,5-A]Pyrimidines And (4-Hydroxy-6-Trifluoromethylpyrimidin-2-Yl) Guanidines, Justin Dave Singleton

Theses and Dissertations

A microwave reactor was used to synthesize a series of novel 3,6-disubstituted or 3-substituted pyrazolo[1,5-a]pyrimidines in a total of 1 hour reaction time over 3 steps. The products were obtained in good to excellent yields (34-92%, ave = 52%) using a straightforward synthesis starting with the reaction of dimethylformamide-dimethylacetal with commercially available aryl acetonitriles (120C, 20 min). This was followed by treatment with H2NNH2 • HBr (120C, 20 min), and then reacted with either 1,1,3,3-tetramethoxypropane or a 2-aryl-substituted malondialdehydes (120C, 20 min). The resulting product was either collected on a sintered glass funnel or purified via column chromatography. The compounds …

Forecasting Inundation Extents In The Amazon Basin Using Srh-2d And Hand Based On The Geoglows Ecmwf Streamflow Services, Christopher Hyde Edwards

Theses and Dissertations

Floods are the most impactful natural disasters on earth, and reliable flood warning systems are critical for disaster preparation, mitigation, and response. The GEOGloWS ECMWF Streamflow Services (GESS) provide forecasted streamflow throughout the world. While forecasted discharge is essential to flood warning, forecasted inundation extents are required to understand and predict flood impact. In this research, I sought to expand GESS flood warning potential by generating inundation extents from streamflow forecasts. I compared Height Above Nearest Drainage (HAND), a method beneficial for flood mapping on a watershed scale, to a 2D hydrodynamic model, specifically Sedimentation and River Hydraulics – Two …

Feasibility And Impact Of Liquid/Liquid-Encased Dopants As Method Of Composition Control In Laser Powder Bed Fusion, Taylor Matthew Davis

Theses and Dissertations

Additive manufacturing (AM) – and laser powder bed fusion (LPBF) specifically – constructs geometry that would not be possible using standard manufacturing techniques. This geometric versatility allows integration of multiple components into a single part. While this practice can reduce weight and part count, there are also serious drawbacks. One is that the LPBF process can only build parts with a single material. This limitation generally results in over-designing some areas of the part to compensate for the compromise in material choice. Over-designing can lead to decreased functional efficiency, increased weight, etc. in LPBF parts. Methods to control the material …

Social Media Influence, Brian Smith

BYU Research Development Office Research Networking Conference

Social Impact, Social Media Influence & Influencers, Crisis, Advocacy, Employee Engagement, Intercultural Communication, Integrated Marketing, Relationships

Astronomy: Connecting The Sky And The Earth, Aleksandr Mosenkov

BYU Research Development Office Research Networking Conference

Formation and Evolution of Galaxies, Interstellar Medium, Paleoastronomy, Archeoastronomy

Uncertainty Quantification, Douglas Cook

BYU Research Development Office Research Networking Conference

What are the limitations of scientific models? Uncertainty quantification, Sensitivity analyses, Theory-based and statistical modeling, Systems thinking, systems analysis

Math Modeling Of Complex Networks, Zach Boyd

BYU Research Development Office Research Networking Conference

graph theory, machine learning, data science, supply chains, computational social science

Image-Guided Therapies, Steven P. Allen

BYU Research Development Office Research Networking Conference

Medicine, Medical Imaging, Magnetic Resonance Imaging, Ultrasound, Surgery

Combining The Forces Of Experiment, Simulation, And Data Science To Develop New Catalysis Technology For Natural Gas Conversion, Morris D. Argyle

BYU Research Development Office Research Networking Conference

Heterogenous catalysis & energy engineering

Nutritional And Food Toxicology; Gluten-Free Bakery Products, Gene Ahlborn

BYU Research Development Office Research Networking Conference

Food Safety, Nutritional and Food Toxicology, General Toxicology, Gluten-free bakery products

Facile Atomic-Level Structure Determination Of Proteins, James Moody

BYU Research Development Office Research Networking Conference

Protein structure and function, Protein crystallization methods, Enzymology, Enzyme engineering

Multi-Scale Simulation Of Turbulent Reacting Flow, David O. Lignell

BYU Research Development Office Research Networking Conference

Design more efficient processes, Understand key physical phenomena, Limit and control pollutants, Analyze and predict hazards

Chatbots! Make Your Systems Talk, Ryan M. Schuetzler

BYU Research Development Office Research Networking Conference

Chatbots, Digital personal assistants, Teaching missing fundamental computer skills

Developing Interdisciplinary Creative Collaboration, David Habben

BYU Research Development Office Research Networking Conference

Illustration, visual studies, creative problem-solving

Dellacorte Lab At Byu, Dennis Dellacorte

BYU Research Development Office Research Networking Conference

Protein Folding, Protein Engineering, Building models that help interpret experimental results

Using X-Ray Vision To Understand How Things Break: Lensless X-Ray Imaging Of Materials In Extreme Conditions, Richard Sandberg

BYU Research Development Office Research Networking Conference

Microscopy, nanotechnology, optics, inverse problems, applied math, materials science, computer science, data science, x-ray imaging and diffraction

The Design Of Large-Scale Autonomous Systems, David Grimsman

BYU Research Development Office Research Networking Conference

Game theory, Control theory, Linear systems, Optimization

Sustainable Structural Design, Taylor Sorensen

BYU Research Development Office Research Networking Conference

Structural analysis, design, and sustainability; Thermal performance of structures

Computational Design Through Manufacturing, Kendrick Shepherd

BYU Research Development Office Research Networking Conference

Computer-Aided Design, Engineering, and Manufacturing; Continuum Mechanics;

Partial Differential Equations;

Computational Geometry; Isogeometric Analysis

Nursing, Sheri Tesseyman

BYU Research Development Office Research Networking Conference

Nursing History and Philosophy

The nature and history of nursing and its relationship with medicine; comparative study of nursing in the US and the UK

Bacterial High Throughput Platform For Drug Discover, Dario Mizrachi

BYU Research Development Office Research Networking Conference

Synthetic biology, Tight Junctions, Membrane proteins

Program Granite Hcm, Finance, & Sis Replacement, Duff Gardner

BYU Research Development Office Research Networking Conference

Students: Student jobs, group projects, and internships

Faculty: Possible experimental activities or observations to support research and publishing

Employees: Business analysts, subject matter experts

Supermassive Black Hole Mass Measurement Using Gas-Dynamical Tracers, Benjamin Boizelle

BYU Research Development Office Research Networking Conference

Supermassive black holes; galaxy nuclei; gas kinematics; transient phenomena

Inclusive Mentorship At Byu, Alisha H. Redelfs

BYU Research Development Office Research Networking Conference

Health disparities, Latino health, Obesity, Biomarkers of fruit & vegetable intake, Physical activity, Schools as intervention sites

Development And Preliminary Psychometric Testing Of The Drake Atrial Electrogram Assessment Survey: Daegas©, Jeanette Drake

BYU Research Development Office Research Networking Conference

Critical Care; Postop Cardiothoracic and Vascular Surgery; Psychometric Testing (Knowledge Assessment Instruments); RN, NP, and DNP Clinical Practice and Education

Electron Microscopy And Micro-Analysis, Felipe Rivera

BYU Research Development Office Research Networking Conference

Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Focused Ion Beam micro-machining (FIB), Materials Microanalysis (XEDS, CL, EBSD, EELS, etc)

Heat-Induced Skeletal Muscle Mitochondrial Biogenesis And Vascular Remodeling: A Countermeasure For Human Disuse Atrophy And Aging, Robert D. Hyldahl

BYU Research Development Office Research Networking Conference

Exercise science, chemistry and biochemistry, nutrition, dietetics and food science