Browsing College of Sciences and Mathematics by Title
Now showing items 27-46 of 387
Cluster perturbation theory. I. Theoretical foundation for a coupled cluster target state and ground-state energies
(2020-05-20)
We introduce a new class of perturbation models-the cluster perturbation (CP) models-where the major drawbacks of Moller-Plesset perturbation theory and coupled cluster perturbation theory have been eliminated. In CP theory, ...
Cluster perturbation theory. II. Excitation energies for a coupled cluster target state
(2020-05-07)
In cluster perturbation (CP) theory, we consider a target excitation space relative to a Hartree-Fock state and partition the target excitation space into a parent excitation space and an auxiliary excitation space. The ...
Cluster perturbation theory. III. Perturbation series for coupled cluster singles and doubles excitation energies
(2020-05-07)
The cluster perturbation series, CPS(D), for coupled cluster singles and doubles excitation energies is considered. It is demonstrated that the second-order model CPS(D-2) is identical to the configuration interaction ...
Cluster perturbation theory. IV. Convergence of cluster perturbation series for energies and molecular properties
(2020-05-20)
The theoretical foundation has been developed for establishing whether cluster perturbation (CP) series for the energy, molecular properties, and excitation energies are convergent or divergent and for using a two-state ...
Cluster perturbation theory. V. Theoretical foundation for cluster linear target states
(2020-05-20)
Cluster perturbation (CP) theory was developed in Paper I [F. Pawlowski et al., J. Chem. Phys. 150, 134108 (2019)] for a coupled cluster (CC) target state and is extended in this paper to comprehend a cluster linear (CL) ...
Communication: Water activation and splitting by single metal-atom anions
(2020-06-25)
We report experimental and computational results pertaining to the activation and splitting of single water molecules by single atomic platinum anions. The anion photoelectron spectra of [Pt(H2O)](-), formed under different ...
Comparison of CIMI Simulations and TWINS Observations on June 28 and 29, 2013
(2022-10-27)
A moderate geomagnetic storm (Sym/H similar to-100 nT) during June 28 and 29, 2013 was studied using Comprehensive Inner Magnetosphere-Ionosphere (CIMI) simulations and results were compared with Two wide-angle Imaging ...
Comparison of TWINS and THEMIS observations of proton pitch angle distributions in the ring current during the 29 May 2010 geomagnetic storm
(2020-06-09)
The first comparison between energy-dependent ion pitch angle distributions in the ring current deconvolved from Two Wide-angle Imagining Neutral-atom Spectrometers (TWINS) energetic neutral atom (ENA) images and measured ...
Comparison of TWINS and THEMIS observations of proton pitch angle distributions in the ring current during the 29 May 2010 geomagnetic storm
(2022-12-02)
The first comparison between energy-dependent ion pitch angle distributions in the ring current deconvolved from Two Wide-angle Imagining Neutral-atom Spectrometers (TWINS) energetic neutral atom (ENA) images and measured ...
The Comprehensive Inner Magnetosphere-Ionosphere Model
(2020-06-05)
Simulation studies of the Earth's radiation belts and ring current are very useful in understanding the acceleration, transport, and loss of energetic particles. Recently, the Comprehensive Ring Current Model (CRCM) and ...
The Comprehensive Inner Magnetosphere-Ionosphere Model
(2023-01-31)
Simulation studies of the Earth's radiation belts and ring current are very useful in understanding the acceleration, transport, and loss of energetic particles. Recently, the Comprehensive Ring Current Model (CRCM) and ...
Constantly fluctuating in an inconsistent way: comparing the effects of sinusoidal and naturally fluctuating incubation temperatures on embryo development
(2019-09-15)
Temperature is a commonly studied environmental factor influencing embryo development in oviparous ectotherms. Though most studies use constant temperature incubation conditions, researchers are aware of the effects of ...
Contrasting evolution of virulence and replication rate in an emerging bacterial pathogen
(2020-05-26)
Host resistance through immune clearance is predicted to favor pathogens that are able to transmit faster and are hence more virulent. Increasing pathogen virulence is, in turn, typically assumed to be mediated by increasing ...
Cross-scale observations of the 2015 St. Patrick's day storm: THEMIS, Van Allen Probes, and TWINS
(2020-06-01)
We present cross-scale magnetospheric observations of the 17 March 2015 (St. Patrick's Day) storm, by Time History of Events and Macroscale Interactions during Substorms (THEMIS), Van Allen Probes (Radiation Belt Storm ...
Crossing the Divide: Admixture Across the Antarctic Polar Front Revealed by the Brittle Star Astrotoma agassizii
(2019-07-31)
The Antarctic Polar Front (APF) is one of the most well-defined and persistent oceanographic features on the planet and serves as a barrier to dispersal between the Southern Ocean and lower latitudes. High levels of endemism ...
Cutzamala System
(2022-04-26)
This file contains a digital map of the Cutzamala System (Mexico) in Google Earth KMZ format that was produced as part of The IBT Water Project at Auburn University. The Cutzamala System evolved from an earlier aqueduct ...
Data for A chromosome-level genome assembly for the Eastern Fence Lizard (Sceloporus undulatus), a reptile model for physiological and evolutionary ecology
(2021-04-16)
Background: High-quality genomic resources facilitate investigations into behavioral ecology, morphological and physiological adaptations, and the evolution of genomic architecture. Lizards in the genus Sceloporus have a ...
Data for: Adaptive seasonal shift towards investment in fewer, larger offspring: Evidence from field and laboratory studies
(2019-12-20)
1. Seasonal changes in reproduction have been described for many taxa. As reproductive seasons progress, females often shift from greater energetic investment in many small offspring towards investing less total energy ...
Data for: Does it pay to pay? A comparison of the benefits of open-access publishing across various sub-fields in biology
(2022-12-09)
Here we provide the R data objects used for the analysis reported in "Does it pay to pay? A comparison of the benefits of open-access publishing across various sub-fields in Biology".