Physical Sciences and Mathematics Commons^™

Hd 183579b: A Warm Sub-Neptune Transiting A Solar Twin Detected By Tess, T. Gan, M. Bedell, S. X. Wang, D. Foreman-Mackey, J. Meléndez, S. Mao, K. G. Stassun, S. B. Howell, C. Ziegler, R. A. Wittenmyer, C. Hellier, K. A. Collins, A. Shporer, G. R. Ricker, R. Vanderspek, D. W. Latham, S. Seager, J. N. Winn, J. M. Jenkins, B. C. Addison, S. Ballard, T. Barclay, J. L. Bean, B. P. Bowler, C. Briceño, I. J. M. Crossfield, J. Dittman, J. Horner, Eric L.N. Jensen, S. R. Kane, J. Kielkopf, L. Kreidberg, N. Law, A. W. Mann, M. W. Mengel, E. D. Morgan, J. Okumura, H. P. Osborn, M. Paegert, P. Plavchan, R. P. Schwarz, B. Shiao, J. C. Smith, L. Spina, C. G. Tinney, G. Torres, J. D. Twicken, M. Vezie, G. Wang, D. J. Wright, H. Zhang

Physics & Astronomy Faculty Works

We report the discovery and characterization of a transiting warm sub-Neptune planet around the nearby bright (V = 8.75 mag, K = 7.15 mag) solar twin HD 183579, delivered by the Transiting Exoplanet Survey Satellite (TESS). The host star is located 56.8 ± 0.1 pc away with a radius of R_* = 0.97 ± 0.02 R_⊙ and a mass of M_* = 1.03 ± 0.05 M_⊙. We confirm the planetary nature by combining space and ground-based photometry, spectroscopy, and imaging. We find that HD 183579b (TOI-1055b) has a radius of R_{p …}

Toi-3362b: A Proto Hot Jupiter Undergoing High-Eccentricity Tidal Migration, J. Dong, C. X. Huang, G. Zhou, R. I. Dawson, J. E. Rodriguez, J. D. Eastman, K. A. Collins, S. N. Quinn, A. Shporer, A. H. M. J. Triaud, S. Wang, T. Beatty, J. M. Jackson, K. I. Collins, L. Abe, O. Suarez, N. Crouzet, D. Mékarnia, G. Dransfield, Eric L.N. Jensen, C. Stockdale, K. Barkaoui, A. Heitzmann, D. J. Wright, B. C. Addison, R. A. Wittenmyer, J. Okumura, B. P. Bowler, J. Horner, S. R. Kane, J. Kielkopf, H. Liu, P. Plavchan, M. W. Mengel, G. R. Ricker, R. Vanderspek, D. W. Latham, S. Seager, J. N. Winn, J. M. Jenkins, J. L. Christiansen, M. Paegert

Physics & Astronomy Faculty Works

High-eccentricity tidal migration is a possible way for giant planets to be placed in short-period orbits. If this happens often, one would expect to catch proto hot Jupiters on highly elliptical orbits undergoing high-eccentricity tidal migration. As of yet, few such systems have been discovered. Here, we introduce TOI-3362b (TIC-464300749b), an 18.1 day, 5 M_Jup planet orbiting a main-sequence F-type star that is likely undergoing high-eccentricity tidal migration. The orbital eccentricity is 0.815 (+0.023)/(-0.032). With a semimajor axis of 0.153 (+0.002)/(-0.003) au, the planet's orbit is expected to shrink to a final orbital radius of 0.051 (+0.008)/(-0.006) au after …

2022 Western Australian Crop Sowing Guide, B. Shackley, B. Paynter, J. Bucat, M. Seymour, S. Power

Bulletins 4000 -

Welcome to the 2022 edition of the Crop Sowing Guide for WA, which introduces 27 new variety releases: three wheat, nine barley (three recently accredited for malt and six currently under malt evaluation), twelve canola, two field pea and a lentil.

The Crop Sowing Guide for WA has been compiled by officers in the Department of Primary Industries and Regional Development. It provides information to support variety decisions for each of the major crops for the upcoming season.

In this edition, lupin agzones have been reduced from 8 agzones to 6 so that all varieties for each of the major …

Using Experimentally Calibrated Regularized Stokeslets To Assess Bacterial Flagellar Motility Near A Surface, Orrin Shindell, Hoa Nguyen, Nicholas Coltharp, Frank G. Healy, B. Rodenborn

Physics and Astronomy Faculty Research

The presence of a nearby boundary is likely to be important in the life cycle and evolution of motile flagellate bacteria. This has led many authors to employ numerical simulations to model near-surface bacterial motion and compute hydrodynamic boundary effects. A common choice has been the method of images for regularized Stokeslets (MIRS); however, the method requires discretization sizes and regularization parameters that are not specified by any theory. To determine appropriate regularization parameters for given discretization choices in MIRS, we conducted dynamically similar macroscopic experiments and fit the simulations to the data. In the experiments, we measured the torque …

Droughtscape, Fall 2021, National Drought Mitigation Center

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

DroughtScape, Fall 2021

Excursions In Summation, Brock Erwin

Fall Showcase for Research and Creative Inquiry

Using polynomials from series representation of functions to approximate other functions on the closed interval from [-1,1].

Analysis Of Oxycontin Addiction And Recovery From Both A Physical And Psychological Lens, Meagan Munley, Carrie Flickinger

Fall Showcase for Research and Creative Inquiry

We will investigate the physical impacts both short and long term effects of of substance use. In doing so we will frame an argument for the substance's addictive properties as it relates to both its physically addictive and sociological addictive properties. In doing, so a stronger understanding of how an individual can move through the stages of substance use, to abuse, and finally addiction will be reviewed. We will then address current treatment strategies for the substance and how they address or fail to address both the physical and sociological impacts of its use.

Analysis Of Fluoxetine (Prozac) Addiction And Recovery From Both A Physical And Psychological Lens, Kristen Dobek, Hannah Couch

Fall Showcase for Research and Creative Inquiry

We will investigate the physical impacts both short and long term effects of of substance use. In doing so we will frame an argument for the substance's addictive properties as it relates to both its physically addictive and sociological addictive properties. In doing, so a stronger understanding of how an individual can move through the stages of substance use, to abuse, and finally addiction will be reviewed. We will then address current treatment strategies for the substance and how they address or fail to address both the physical and sociological impacts of its use.

2021 Celebration Of Scholarship, Creativity, And Engagement, Todd Bruns, Beth Heldebrandt

Programs

At this annual celebration, we, as a shared community, are pleased that the important work of faculty continues and evolves as faculty have broadened and redefined the boundaries of scholarship, creativity, and innovation throughout the COVID, late-COVID, and soon-to-be post-COVID eras. While we are pleased to return to more familiar campus-based traditions, functions, and activities, the experiences of 2020-2021 have contributed to the development of new forms and strategies for scholarship and creativity that reflect the core principles of faculty life and ensure that student learning remains central to the mission of Eastern Illinois University.

For that reason, our faculty, …

So, You Want To Take Zoloft (Sertraline)?: A Biological & Psychological Analysis, Hailey Lux, Mackenzie Harry

Fall Showcase for Research and Creative Inquiry

A lot of individuals around the world suffer with panic disorders, post-traumatic stress disorder (PTSD), obsessive compulsive disorder (OCD). One drug that has been found to significantly decrease these feelings of stress is Sertraline. Sertraline has been proven to increase quality of life among individuals with certain mental health disorders. In addition, it is commonly known as Zoloft and is prescribed to individuals by doctors and psychiatrist. However, we will be talking about how in extreme causes sertraline could become addictive and have withdrawal side effects. Furthermore, during this poster presentation we will be discussing how sertraline is not an …

Geographic Distribution And History Of Plant Specimens At Longwood University Harvill-Stevens Herbarium, Ross Bechtle

Fall Showcase for Research and Creative Inquiry

Herbaria are plant museums comprising collections of dried mounted plant specimens crucial for education, research, and conservation purposes. They provide a permanent record of plant diversity found in a particular area over time. An understanding of geographic coverage and history of collection of specimens in a herbarium is important for future planning and growth of a herbarium. The purpose of this study was to understand the county-level distribution and chronology of collection of plant specimens housed in Harvill-Stevens Herbarium at Longwood. Harvill-Stevens Herbarium is the largest collection of Virginia native plants the second largest herbarium in the state consisting of …

Ethical Dilemma Of Self-Driving Cars: Conservative Solution, Christian Servin, Vladik Kreinovich, Shahnaz Shahbazova

Departmental Technical Reports (CS)

When designing software for self-driving cars, we need to make an important decision: When a self-driving car encounters an emergency situation in which either the car's passenger or an innocent pedestrian have a good change of being injured or even die, which option should it choose? This has been a subject of many years of ethical discussions -- and these discussions have not yet led to a convincing solution. In this paper, we propose a "conservative" (status quo) solution that does not require making new ethical decisions -- namely, we propose to limit both the risks to passengers and risks …

Toi-431/Hip 26013: A Super-Earth And A Sub-Neptune Transiting A Bright, Early K Dwarf, With A Third Rv Planet, A. Osborn, D. J. Armstrong, B. Cale, R. Brahm, R. A. Wittenmyer, F. Dai, I. J. M. Crossfield, E. M. Bryant, V. Adibekyan, R. Cloutier, K. A. Collins, E. Delgado Mena, M. Fridlund, C. Hellier, S. B. Howell, G. W. King, J. Lillo-Box, J. Otegi, S. Sousa, K. G. Stassun, E. C. Matthews, C. Ziegler, G. Ricker, R. Vanderspek, D. W. Latham, S. Seager, J. N. Winn, J. M. Jenkins, J. S. Acton, B. C. Addison, D. R. Anderson, S. Ballard, D. Barrado, S. C. C. Barros, N. Batalha, D. Bayliss, T. Barclay, B. Benneke, J. Berberian Jr., F. Bouchy, B. P. Bowler, C. Briceño, C. J. Burke, M. R. Burleigh, S. L. Casewell, D. Ciardi, K. I. Collins, B. F. Cooke, O. D. S. Demangeon, R. F. Díaz, C. Dorn, D. Dragomir, C. Dressing, X. Dumusque, N. Espinoza, P. Figueira, B. Fulton, E. Furlan, E. Gaidos, C. Geneser, S. Gill, M. R. Road, E. J. Gonzales, V. Gorjian, M. N. Günther, R. Helled, B. A. Henderson, T. Henning, A. Hogan, S. Hojjatpanah, J. Horner, A. W. Howard, S. Hoyer, D. Huber, H. Isaacson, J. S. Jenkins, Eric L.N. Jensen, A. Jordán, A. R. Kane, R. C. Kidwell Jr., J. Kielkopf, N. Law, M. Lendl, M. Lund, R. A. Matson, A. W. Mann, J. Mccormac, M. W. Mengel, F. Y. Morales, L. D. Nielsen, J. Okumura, H. P. Osborn, E. A. Petigura, P. Plavchan, D. Pollacco, E. V. Quintana, L. Raynard, P. Robertson, M. E. Rose, A. Roy, M. Reefe, A. Santerne, N. C. Santos, P. Sarkis, J. Schlieder, R. P. Schwarz, N. J. Scott, A. Shporer, A. M. S. Smith, C. Stibbard, C. Stockdale, P. A. Strøm, J. D. Twicken, T.-G. Tan, A. Tanner, J. Teske, R. H. Tilbrook, C. G. Tinney, S. Udry, J. N. Villaseñor, J. I. Vines, S. X. Wang, L. M. Weiss, R. G. West, P. J. Wheatley, D. J. Wright, H. Zhang, F. Zohrabi

Physics & Astronomy Faculty Works

We present the bright (V_mag = 9.12), multiplanet system TOI-431, characterized with photometry and radial velocities (RVs). We estimate the stellar rotation period to be 30.5 ± 0.7 d using archival photometry and RVs. Transiting Exoplanet Survey Satellite (TESS) objects of Interest (TOI)-431 b is a super-Earth with a period of 0.49 d, a radius of 1.28 ± 0.04 R_⊕, a mass of 3.07 ± 0.35 M_⊕, and a density of 8.0 ± 1.0 g cm⁻³; TOI-431 d is a sub-Neptune with a period of 12.46 d, a radius of 3.29 ± 0.09 …

Two Bright M Dwarfs Hosting Ultra-Short-Period Super-Earths With Earth-Like Compositions, T. Hirano, J. H. Livingston, A. Fukui, N. Narita, H. Harakawa, H. T. Ishikawa, K. Miyakawa, T. Kimura, A. Nakayama, N. Fujita, Y. Hori, K. G. Stassun, A. Bieryla, C. Cadieux, D. R. Ciardi, K. A. Collins, M. Ikoma, A. Vanderburg, T. Barclay, C. E. Brasseur, J. P. De Leon, J. P. Doty, R. Doyon, E. Esparza-Borges, G. A. Esquerdo, E. Furlan, E. Gaidos, E. J. Gonzales, K. Hodapp, S. B. Howell, K. Isogai, S. Jacobson, J. M. Jenkins, Eric L.N. Jensen, K. Kawauchi, T. Kotani, T. Kudo, S. Kurita, T. Kurokawa, N. Kusakabe, M. Kuzuhara, D. Lafrenière, D. W. Latham, B. Massey, M. Mori, F. Murgas, J. Nishikawa, T. Nishiumi, M. Omiya, M. Paegert, E. Palle, H. Parviainen, S. N. Quinn, G. R. Ricker, R. P. Schwarz, S. Seager, M. Tamura, P. Tenenbaum, Y. Terada, R. K. Vanderspek, S. Vievard, N. Watanabe, J. N. Winn

Physics & Astronomy Faculty Works

We present observations of two bright M dwarfs (TOI-1634 and TOI-1685: J = 9.5–9.6) hosting ultra-short-period (USP) planets identified by the TESS mission. The two stars are similar in temperature, mass, and radius (T_eff ≈ 3500 K, M_⋆ ≈ 0.45–0.46 M_⊙, and R_⋆ ≈ 0.45–0.46 R_⊙), and the planets are both super-Earth size (1.25 R_⊕ < R_p < 2.0 R_⊕). For both systems, light curves from ground-based photometry exhibit planetary transits, whose depths are consistent with those from the TESS photometry. We also refine the transit ephemerides based on the ground-based …

Discrete Hypergeometric Legendre Polynomials, Tom Cuchta

Mathematics Faculty Research

A discrete analog of the Legendre polynomials defined by discrete hypergeometric series is investigated. The resulting polynomials have qualitatively similar properties to classical Legendre polynomials. We derive their difference equations, recurrence relations, and generating function.

Math 671: Statistical Method I, Dao Nguyen

GMAS Course Syllabi

No abstract provided.

Assessing The Dispersal And Recruitment Of Stocked Walleye Fry In A Northern Minnesota Chain Of Lakes, Joseph W. Amundson

Biology Graduate Theses

As part of Minnesota's Walleye Sander vitreus egg take practice, 10% of eggs taken for hatchery purposes are stocked back into the donor lake. For Andrusia, part of the Cass Lake Chain of Lakes (Chain), this practice can result in elevated fry densities (mean: 17,000 fry/littoral hectare). However, if fry are able to disperse and use all available littoral hectares throughout the Chain, fry densities would be intermediate to typical stocking densities for Minnesota lakes (1,200 - 2,400 fry/littoral hectare). In 2016-2018, 3-3.5 million fry were mass-marked by immersion in oxytetracycline (OTC) prior to stocking into Andrusia to allow differentiation …

A Case Study Using 2019 Pre-Monsoon Snow And Stream Chemistry In The Khumbu Region, Nepal, Heather M. Clifford, Mariusz Potocki, Inka Koch, Tenzing Sherpa, Mike Handley, Elena Korotkikh, Douglas Introne, Susan Kaspari, Kimberley Miner, Tom Matthews, Baker Perry, Heather Guy, Ananta Gajurel, Praveen Kumar Singh, Sandra Elvin, Aurora C. Elmore, Alex Tait, Paul A. Mayewski

Geological Sciences Faculty Scholarship

This case study provides a framework for future monitoring and evidence for human source pollution in the Khumbu region, Nepal. We analyzed the chemical composition (major ions, major/trace elements, black carbon, and stable water isotopes) of pre-monsoon stream water (4300–5250 m) and snow (5200–6665 m) samples collected from Mt. Everest, Mt. Lobuche, and the Imja Valley during the 2019 pre-monsoon season, in addition to a shallow ice core recovered from the Khumbu Glacier (5300 m). In agreement with previous work, pre-monsoon aerosol deposition is dominated by dust originating from western sources and less frequently by transport from southerly air mass …

Effects Of Cloud Computing In The Workforce, Kevin Rossi Acosta

Cybersecurity Undergraduate Research Showcase

In recent years, the incorporation of cloud computing and cloud services has increased in many different types of organizations and companies. This paper will focus on the philosophical, economical, and political factors that cloud computing and cloud services have in the workforce and different organizations. Based on various scholarly articles and resources it was observed that organizations used cloud computing and cloud services to increase their overall productivity as well as decrease the overall cost of their operations, as well as the different policies that were created by lawmakers to control the realm of cloud computing. The results of this …

Ord River Irrigation Area Stage 2 M2 Supply Channel Compliance Assessment Report 2020 - Statement 938, Kimberley Boab Consulting

Irrigated Agricultural Development in the North

This compliance assessment of progress with the implementation of Ministerial Statement 938 for the period 1/1/2020 to 31/12/2020 was undertaken on behalf of the Proponent, the Western Australian Department of Primary Industries and Regional Development. It assesses and makes recommendations on compliance with the delivery of the conditions applied to the development of the Ord River Irrigation Area Stage 2 (M2 Supply Channel) as stipulated in Ministerial Statement 938 issued by the Minister for the Environment and administered by the Department of Water and Environmental Regulation.

Previous audits have recommended changes to a number of actions in the Goomig Environmental …

The Magellan-Tess Survey. I. Survey Description And Midsurvey Results, J. Teske, S. X. Wang, A. Wolfgang, T. Gan, M. Plotnykov, D. J. Armstrong, R. P. Butler, B. Cale, J. D. Crane, W. Howard, Eric L.N. Jensen, N. Law, S. A. Shectman, P. Plavchan, D. Valencia, A. Vanderburg, G. R. Ricker, R. Vanderspek, D. W. Latham, S. Seager, J. N. Winn, J. M. Jenkins, V. Adibekyan, D. Barrado, S. C. C. Barros, Z. Benkhaldoun, D. J. A. Brown, E. M. Bryant, J. Burt, D. A. Caldwell, D. Charbonneau, R. Cloutier, K. A. Collins, K. I. Collins, K. D. Colon, D. M. Conti, O. D. S. Demangeon, J. D. Eastman, M. Elmufti, F. Feng, E. Flowers, N. M. Guerrero, S. Hojjatpanah, J. M. Irwin, G. Isopi, J. Lillo-Box, F. Mallia, B. Massey, M. Mori, S. E. Mullally, N. Narita, T. Nishiumi, A. Osborn, M. Paegert, J. P. De Leon, S. N. Quinn, M. Reefe, R. P. Schwarz, A. Shporer, A. Soubkiou, S. G. Sousa, C. Stockdale, P. A. Strøm, T.-G. Tan, J. Tang, P. Tenenbaum, P. J. Wheatley, J. Wittrock, D. A. Yahalomi, F. Zohrabi

Physics & Astronomy Faculty Works

Kepler revealed that roughly one-third of Sunlike stars host planets orbiting within 100 days and between the size of Earth and Neptune. How do these planets form, what are they made of, and do they represent a continuous population or multiple populations? To help address these questions, we began the Magellan-TESS Survey (MTS), which uses Magellan II/PFS to obtain radial velocity (RV) masses of 30 TESS-detected exoplanets and develops an analysis framework that connects observed planet distributions to underlying populations. In the past, small-planet RV measurements have been challenging to obtain due to host star faintness and low RV semiamplitudes …

(2021 Revision) Chapter 4: Essential Aspects Of Physical Design And Implementation Of Relational Databases, Tatiana Malyuta, Ashwin Satyanarayana

Open Educational Resources

No abstract provided.

Replication Data For: Evaluation Of Model Concepts To Describe Water Transport In Shallow Subsurface Soil And Across The Soil–Air Interface, Zhen Li, Kathleen Smits

Earth & Environmental Sciences Datasets - Archive

Soil water evaporation plays a critical role in mass and energy exchanges across the land–atmosphere interface. Although much is known about this process, there is no agreement on the best modeling approaches to determine soil water evaporation due to the complexity of the numerical modeling scenarios and lack of experimental data available to validate such models. Existing studies show numerical and experimental discrepancies in the evaporation behavior and soil water distribution in soils at various scales, driving us to revisit the key process representation in subsurface soil. Therefore, the goal of this work is to test different mathematical formulations used …

Replication Data For: The Effect Of The Top Soil Layer On Moisture And Evaporation Dynamics, Zhen Li, Kathleen Smits

Earth & Environmental Sciences Datasets - Archive

Understanding the effect of the top soil layer on surface evaporation and water distribution is critical to modeling hydrological systems. However, the dependency of near-surface soil moisture and fluxes on layering characteristics remains unclear. To address this uncertainty, we investigate how the arrangement of soil horizons affects the evaporation and soil moisture, specifically, the near-surface soil moisture, through the combination of numerical simulations and evaporation experiments. The characteristics of fluxes and moisture from different soil profiles are then used to understand the soil layering conditions. Results show that the top soil layer can significantly affect the evolution of soil moisture …

Rwanda To Phase Out Polluting Vehicles By 2040, An Efficient Strategy To Mitigate Global Warming Effects?, Josue Kwizera

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

Passenger vehicles are major pollutants because on average a typical passenger vehicle emits about 4.6 metric tons of carbon dioxide per year. I highly support the idea that Rwanda joined on November 11, 2021, a group of countries at the COP26 United Nations climate talks that have made an agreement to end polluting vehicles by 2040. Rwanda is a landlocked country with a 12.95 million population as of 2020 (World Bank). Rwanda currently has over 221,000 registered vehicles; 83,980 are passenger vehicles, 114,900 vehicles (52 percent of those vehicles) are motorcycles and the rest include public transports (buses and minibuses) …

Iowa Waste Reduction Center Newsletter, October 2021, University Of Northern Iowa. Iowa Waste Reduction Center.

Iowa Waste Reduction Center Newsletter

Contents:

--- A Successful IRA Conference
--- Saving Scraps: A Culinary Competition
--- Calendar
--- Welcome Jordan Burrows!
--- Industry News

2021 October - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Monthly Reports

No abstract provided.

Infinitely Many Radial Solutions For A P-Laplacian Problem With Indefinite Weight, Alfonso Castro, Jorge Cossio, Sigifredo Herrón, Carlos Vélez

All HMC Faculty Publications and Research

We prove the existence of infinitely many sign changing radial solutions for a p-Laplacian Dirichlet problem in a ball. Our problem involves a weight function that is positive at the center of the unit ball and negative in its boundary. Standard initial value problems-phase plane analysis arguments do not apply here because solutions to the corresponding initial value problem may blow up near the boundary due to the fact that our weight function is negative at the boundary. We overcome this difficulty by connecting the solutions to a singular initial value problem with those of a regular initial value problem …

Replication Data For: Effect Of Subsurface Soil Moisture Variability And Atmospheric Conditions On Methane Gas Migration In Shallow Subsurface, C. T.K.K. Deepagoda, Kathleen Smits

Earth & Environmental Sciences Datasets - Archive

A major concern resulting from the increased use and production of natural gas has been how to mitigate fugitive greenhouse gas emissions (predominantly methane) from natural gas infrastructure (e.g., leaky shallow pipelines). Subsurface migration and atmospheric loading of methane from pipeline leakage is controlled by source configurations and subsurface soil conditions (e.g., soil heterogeneity and soil moisture) and are further affected by atmospheric conditions (e.g., wind and temperature). However, the transport and attenuation of methane under varying subsurface and atmospheric conditions are poorly understood, making it difficult to estimate leakage fluxes from methane concentration measurements at and above the soil …

Earth System Science, Karin A. Block

Open Educational Resources

Syllabus for 4-credit introductory earth system science course covering three units: 1. The Solid Earth; 2. The Fluid Envelope; 3. Climate and Natural Resources. Format is lecture plus 3 hr lab.