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Scalings for the Alfven-cyclotron instability: Linear dispersion theory and hybrid particle-in-cell simulations 

Gary, S. Peter; Fu, Xiangrong; Cowee, Misa M.; Winske, Dan; Liu, Kaijun; 0000-0001-5882-1328 (2020-06-01)
The Alfven-cyclotron instability is driven by an ion temperature anisotropy such that T-perpendicular to/T-|| >1 where and || denote directions perpendicular and parallel to a uniform background magnetic field B-o, ...

Scalings for the Alfven-cyclotron instability: Linear dispersion theory and hybrid particle-in-cell simulations 

Gary, S. Peter; Fu, Xiangrong; Cowee, Misa M.; Winske, Dan; Liu, Kaijun; 0000-0003-3117-4030; 0000-0001-5882-1328; 0000-0002-4305-6624; 0000-0002-4655-2316 (2022-10-27)
The Alfven-cyclotron instability is driven by an ion temperature anisotropy such that T-perpendicular to/T-|| >1 where and || denote directions perpendicular and parallel to a uniform background magnetic field B-o, ...

Scalings of Alfven-cyclotron and ion Bernstein instabilities on temperature anisotropy of a ring-like velocity distribution in the inner magnetosphere 

Gary, Peter; Min, Kyungguk; Liu, Kaijun; 0000-0001-5882-1328 (2022-09-29)
A ring-like proton velocity distribution with f(p)(v)/v>0 and which is sufficiently anisotropic can excite two distinct types of growing modes in the inner magnetosphere: ion Bernstein instabilities with multiple ion ...

Scalings of Alfven-cyclotron and ion Bernstein instabilities on temperature anisotropy of a ring-like velocity distribution in the inner magnetosphere 

Min, Kyungguk; Liu, Kaijun; Gary, S. Peter; 0000-0002-2095-8529; 0000-0001-5882-1328 (2020-06-03)
A ring-like proton velocity distribution with f(p)(v)/v>0 and which is sufficiently anisotropic can excite two distinct types of growing modes in the inner magnetosphere: ion Bernstein instabilities with multiple ion ...

Seasonal Shifts in Reproduction Depend on Prey Availability for an Income Breeder 

Hall, Joshua M.; Buckelew, Andrew; Lovern, Matthew; Secor, Stephen M.; Warner, Daniel A.; 0000-0002-5587-3402; 0000-0001-7231-7785 (2022-03-04)
The evolution of reproductive strategies depends on local environmental conditions. When environments are seasonal, selection favors individuals that align changes in key reproductive traits with seasonal shifts in habitat ...

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

Ida, T.; Ortiz, J.V. (2021-01-26)
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. ...

Selective predation on Utah prairie dogs 

Hoogland, John; Cannon, Kristin; Manno, Theodore; DeBarbieri, Lili (2023-05-17)
Predation always affects demography and population dynamics, but removal of certain types of individuals is especially consequential. Predators strike quickly and commonly avoid areas with human observers, however, and ...

Semiautomated Identification and Characterization of Dunes at Hargraves Crater, Mars 

Emran, A; Marzen, L; King, D; 0000-0002-4420-0595 (2022-09-29)
The Mars Global Digital Dune Database (MGD(3)) contains information on Martian dune fields and prepared manually from the Thermal Emission Imaging System (THEMIS; 100 m/pixel) images. Although the MGD(3)outlines dune fields, ...

Sequential addition of H2O, CH3OH, and NH3 to Al3O3-: A theoretical study 

Guevara-Garcia, Alfredo; Martinez, Ana; Ortiz, J.V. (2021-01-26)
Photoelectron spectra of two species, Al3O3(H2O)(2)(-) and Al3O3(CH3OH)(2)(-), that are produced by the addition of two water or methanol molecules to Al3O3- are interpreted with density-functional geometry optimizations ...

Severe mammal declines coincide with proliferation of invasive Burmese pythons in Everglades National Park 

Dorcas, Michael E.; Wilson, John D; Reed, Robert N.; Snow, Ray W.; Rochford, Michael R.; Miller, Melissa A.; Meshaka, Walter E. Jr; Andreadis, Paul T.; Mazzotti, Frank J. (2022-09-15)
Invasive species represent a significant threat to global biodiversity and a substantial economic burden. Burmese pythons, giant constricting snakes native to Asia, now are found throughout much of southern Florida, including ...

Severe mammal declines coincide with proliferation of invasive Burmese pythons in Everglades National Park 

Dorcas, Michael E.; Willson, John D.; Reed, Robert N.; Snowd, Ray W.; Rochforde, Michael R.; Miller, Melissa A.; Meshaka Jr., Walter E.; Andreadish, Paul T.; Mazzottie, Frank J.; Romagosa, Christina M.; Hart, Kristen M. (2020-04-01)
Invasive species represent a significant threat to global biodiversity and a substantial economic burden. Burmese pythons, giant constricting snakes native to Asia, now are found throughout much of southern Florida, ...

Sex-Specific Effects of Incubation Temperature on Embryonic Development of Zebra Finch (Taeniopygia guttata) Embryos 

Gurley, Bain; Finger, John W.; Wada, Haruka; 0000-0001-7436-8367 (2022-03-04)
In oviparous species, the embryonic environmentparticularly temperaturecan alter phenotype and survival of an individual by affecting its size as well as its metabolic rate. Previous studies have shown that incubation ...

Siboglinid-bacteria endosymbiosis: A model system for studying symbiotic mechanisms 

Thornhill, Daniel J; Fielman, Kevin T; Santos, Scott R; Halanych, Kenneth M (2019-04-29)
Siboglinid worms are a group of gutless marine annelids which are nutritionally dependent upon endosymbiotic bacteria.1,2 Four major groups of siboglinids are known including vestimentiferans, Osedax spp., frenulates and ...

Signatures of electron Landau resonant interactions with chorus waves from THEMIS observations 

Min, Kyungguk; Kaijun, Liu; Li, Wen; 0000-0001-5882-1328 (2022-10-04)
Simultaneous observations of electron phase space density (PSD) and chorus waves for more than 4 years by the Time History of Events and Macroscale Interactions during Substorms (THEMIS) are analyzed to identify signatures ...

Signatures of electron Landau resonant interactions with chorus waves from THEMIS observations 

Min, Kyungguk; Liu, Kaijun; Li, Wen; 0000-0002-2095-8529; 0000-0001-5882-1328 (2020-06-05)
Simultaneous observations of electron phase space density (PSD) and chorus waves for more than 4 years by the Time History of Events and Macroscale Interactions during Substorms (THEMIS) are analyzed to identify signatures ...

The Silurian to Permian history of a metamorphic core complex in Lofoten, northern Scandinavian Caledonides 

Steltenpohl, Mark; Hames, Willis; Andresen, Arild (2022-09-29)
[1] The Lofoten archipelago exposes Precambrian Baltic basement and Caledonian allochthonous sequences within a 1000 km long chain of gravity and magnetic highs and structural culminations along the extended, British and ...

Simulation of pressure pulses in the bow shock and magnetosheath driven by variations in interplanetary magnetic field direction 

Lin, Y; Swift, DW; Lee, LC; 0000-0003-4012-991X (2022-10-25)
Two-dimensional (2-D) hybrid simulations are carried out to study the effects of the variation in the interplanetary magnetic field (IMF) direction on the bow shock, magnetosheath, and magnetosphere. A curvilinear coordinate ...

Simulation studies of a recorder in three dimensions 

Giordano, Nicholas J. (2015-10-12)
The aeroacoustics of a recorder are explored using a direct numerical simulation based on the Navier–Stokes equations in three dimensions. The qualitative behavior is studied using spatial maps of the air pressure and ...