535 Works

Global images of trapped ring current ions during main phase of 17 March 2015 geomagnetic storm as observed by TWINS

J Perez, J Goldstein, D McComas, P Valek, M Fok & Kyoung-Joo Hwang
A unique view of the trapped particles in the inner magnetosphere provided by energetic neutral atom (ENA) imaging is used to observe the dynamics of the spatial structure and the pitch angle anisotropy on a global scale during the last 6h of the main phase of a large geomagnetic storm (minimum SYM-H=-230nT) that began on 17 March 2015. Ion flux and pressure anisotropy obtained from Two Wide-angle Imaging Neutral-atom Spectrometers (TWINS) ENA images are shown....

Performance of soybean cultivars in Alabama, 2014

Kathryn M. Glass, , & Jon H. Brasher
"December 2014."

Experimental and numerical investigation of saltwater intrusion dynamics in flux-controlled groundwater systems

Sun Woo Chang & T. Prabhakar Clement
Sea level rise and reduction of groundwater fluxes due to changes in rainfall patterns are the two major climate change–induced hydrological variables that can severely affect saltwater intrusion in coastal aquifers. In this study we use a combination of laboratory experiments and numerical simulations to study the impacts of changes in one of these climate change–induced hydrological variables, groundwater flux, on saltwater intrusion process. We have completed experiments in a laboratory-scale model to study the...

Electron propagator calculations on C-60 and C-70 photoelectron spectra

V. G. Zakrzewski, O. Dolgounitcheva & J.V. Ortiz
Vertical ionization energies of C60 and C70 fullerenes are calculated with semidirect implementations of electron propagator methods and a triple- plus polarization basis set. These predictions are in close agreement with photoelectron spectra for final states in which the Koopmans description is qualitatively valid. Many correlation states, where the latter description fails, are predicted by methods with nondiagonal self-energies.

Second-order, two-electron Dyson propagator theory: Comparisons for vertical double ionization potentials

T. Ida & J.V. Ortiz
The second-order, two-electron Dyson propagator is derived using superoperator theory with a spin-adapted formulation. To include certain ladder diagrams to all orders, the shifted-denominator SD2 approximation is made. Formal and computational comparisons with other approximations illustrate the advantages of the SD2 procedure. Vertical double ionization potentials DIPs for a set of closed-shell molecules are evaluated with the second-order propagator and the SD2 method. The results of the SD2 approximation are in good agreement with experiment....

Partial photoionization cross sections of and Rydberg radicals

A.M. Velasco, C. Lavin, I. Martin, J. Melin & J.V. Ortiz
ammonium and oxonium Rydberg radicals from the outermost, occupied orbitals of their respective ground states are reported. These properties are known to be relevant in photoelectron dynamics studies. For the present calculations, the molecular-adapted quantum defect orbital method has been employed. A Cooper minimum has been found in the 3sa1-kpt2 Rydberg channel of NH4 beyond the ionization threshold, which provides the main contribution to the photoionization of this radical. However, no net minimum is found...

Surface Green’s function calculations: A nonrecursive scheme with an infinite number of principal layers

Aleksey Kletsov, Yuri Dahnovsky & J.V. Ortiz
A novel computational method for a surface Green’s function matrix is introduced for the calculation of electrical current in molecular wires. The proposed nonrecursive approach includes an infinite number of principal layers and yields the second-order matrix equation for the transformed Green’s function matrix. The solution is found by the direct diagonalization of the auxiliary matrix without any iteration process. As soon as complex roots of the auxiliary matrix Gˆ S are calculated, the gaps...

Preliminary performance of soybeans in Alabama, 2020

Henry G. Jordan
Caption title. "January 13, 2021."

Alabama cotton variety tests 1974

Cover title. "February 1975."

1977 Alabama grain sorghum performance tests

& Cliff G. Currier
Cover title. "February 1978."

Effects of human activity on the habitat utilization of Himalayan marmot (Marmota himalayana) in Zoige wetland

Shuailing Zhou, Ali Krzton, Shuai Gao, Cheng Guo & Zuofu Xiang
Human activity is increasingly and persistently disturbing nature and wild animals. Affected wildlife adopts multiple strategies to deal with different human influences. To explore the effect of human activity on habitat utilization of Himalayan marmot (Marmota himalayana), habitat utilization patterns of three neighboring marmot populations in habitats affected differently by human activities were recorded and compared. We found that (a) distance between reproductive burrows (a represent of reproductive pairs) becomes shorter under the influence of...

Examining Audience Reaction to B2B Content Marketing Delivered via Social Media

James Cole & Emory Serviss
Social media provide multiple platforms and tactics to reach business-to-business (B2B) audiences with content they may rely upon to make purchasing decisions. But while content marketing has drawn some academic interest over the past decade, particularly in the field of media effects where audience reactions are studied with traditional theoretical frameworks, there is very little scholarly research examining how content marketing in social media influences audiences, particularly with regard to purchase decisions. In the highly...

Fishes of the Streams of Acadia National Park, Maine

Justin C. Havird, Jennifer K. Parker & Bruce Connery
Acadia National Park (ANP) is a non-continuous conglomerate of park lands interspersed with private lands, which is located mainly on Mount Desert Island, ME. Surveys of fishes in ANP have largely ignored or under-sampled most of the streams on the island. Reported here are the results of a 2009 survey that sampled freshwater fishes in 43 streams flowing through Park boundaries. Overall, 19 species were collected, and many were recorded from specific streams for the...

Toward more realistic projections of soil carbon dynamics by Earth system models

Yiqi Luo, Anders Ahlstrom, Steven D. Allison, Niles H. Batjes, Victor Brovkin, Nuno Carvalhais, Adrian Chappell, Philippe Ciais, Eric A. Davidson, Adrien C. Finzi, Katerina Georgiou, Bertrand Guenet, Oleksandra Hararuk, Jennifer W. Harden, Yujie He, Francesca Hopkins, Lifen Jiang, Charlie Koven, Robert B. Jackson, Chris D. Jones, Mark J. Lara, Junyi Liang, A. David McGuire, William Parton, Changhui Peng … & Tao Zhou
Soil carbon (C) is a critical component of Earth system models (ESMs), and its diverse representations are a major source of the large spread across models in the terrestrial C sink from the third to fifth assessment reports of the Intergovernmental Panel on Climate Change (IPCC). Improving soil C projections is of a high priority for Earth system modeling in the future IPCC and other assessments. To achieve this goal, we suggest that (1) model...

Field evaluation of synthetic lure (3-methyl-1-butanol) when compared to non odor-baited control in capturing Anopheles mosquitoes in varying land-use sites in Madagascar

Sarah Zohdy, Kristin Derfus, Mbolatiana Tovo Andrianjafy, Patricia C. Wright & Thomas R. Gillespie
Background: Malaria is the 4th largest cause of mortality in Madagascar. To better understand malaria transmission dynamics, it is crucial to map the distribution of the malaria vectors, mosquitoes belonging to the genus Anopheles. To do so, it is important to have a strong Anopheles-specific lure to ensure the maximum number of captures. Previous studies have isolated volatiles from the human skin microbiota and found the compound 3-methyl-1-butanol to be the most attractive to the...

Discovery and Broad Relevance May Be Insignificant Components of Course-Based Undergraduate Research Experiences [CUREs] for Non-Biology Majors

Cissy J. Ballen, Seth K. Thompson, Jessamina E. Blum, Nicholas P. Newstrom & Cotner Cotner
Course-based undergraduate research experiences (CUREs) are a type of laboratory learning environment associated with a science course, in which undergraduates participate in novel research. According to Auchincloss et al. (CBE Life Sci Educ 2104; 13:29-40), CUREs are distinct from other laboratory learning environments because they possess five core design components, and while national calls to improve STEM education have led to an increase in CURE programs nationally, less work has specifically focused on which core...

Multiple Colonizations Lead to Cryptic Biodiversity in an Island Ecosystem: Comparative Phylogeography of Anchialine Shrimp Species in the Ryukyu Archipelago, Japan

David A Weese, Yoshihisa Fujita & Scott R. Santos
Archipelagos of the Indo-West Pacific are considered to be among the richest in the world in biodiversity, and phylogeographic studies generally support either the center of origin or the center of accumulation hypothesis to explain this pattern. To differentiate between these competing hypotheses for organisms from the Indo-West Pacific anchialine ecosystem, defined as coastal bodies of mixohaline water fluctuating with the tides but having no direct oceanic connections, we investigated the genetic variation, population structure,...

Integrating info-gap decision theory with robust population management: a case study using the Mountain Plover

Max Post Van Der Burg & Andrew J. Tyre
Wildlife managers often make decisions under considerable uncertainty. In the most extreme case, a complete lack of data leads to uncertainty that is unquantifiable. Information-gap decision theory deals with assessing management decisions under extreme uncertainty, but it is not widely used in wildlife management. So too, robust population management methods were developed to deal with uncertainties in multiple-model parameters. However, the two methods have not, as yet, been used in tandem to assess population management...

Digital ethics in ePortfolios: Version 2.0, resource development by the AAEEBL Digital Ethics ePortfolio Task Force in 2021

Christine Slade & Amy Cicchino
The Digital Ethics ePortfolio Task Force for the Association for Authentic, Experiential, & Evidence-Based Learning (AAEEBL) continued to bring together international ePortfolio scholars and practitioners to establish research-based digital practices for ePortfolio stakeholders, including institutions, students, educators, and administrators. Phase one developed an online interactive resource, Digital Ethics Principles in ePortfolios: Version 1, which outlines strategies, scenarios, and resources around ten principles. This second iteration adds additional principles related to ePortfolio evaluation practices; practices that...

George Eliot in Romantic Biofiction

Beverley Park Rilett
Book review of The Honeymoon, by Dinitia Smith, published 2016 by Other Press

'Woman's freedom consists in choosing the husband who is to be her master': Existentialism and the Female Slave in Daniel Deronda

Marianne Burton
Article from the George Eliot Review, digitized and hosted by the George Eliot Review Online.

Chaucer and George Eliot

George Schesinger
Article from the George Eliot Review, digitized and hosted by the George Eliot Review Online.

Cervantes, George Eliot, and Milan Kundera's The Art of the Novel: An Introduction to a Panel Discussion

K. M. Newton
Article from the George Eliot Review, digitized and hosted by the George Eliot Review Online.

Between Deafness and Sound: Aurality and the Limits of Sympathy in Mill on the Floss

Kyriaki Hadjiafxendi
Article from the George Eliot Review, digitized and hosted by the George Eliot Review Online.

Generation of near-Earth reconnection by divergent flows in the plasma sheet

Y Lin & D Swift
[1] A global two-dimensional hybrid simulation is carried out to study the evolution of the near-Earth plasma sheet. It is shown that reconnection X lines and plasmoids can be generated by diverging flows in the plasma sheet. These diverging flows can be caused by variations in the Maxwell stress due to variations of B-x and B-z components of the magnetic field outside the current sheet. In addition, the flow acceleration/deceleration in the plasma sheet can...

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