The article presents an analytical model and a Monte Carlo simulation of an antihydrogen gravity experiment that would employ multiple apertures. The model was developed with the primary goal of reducing the experimental run time necessary to determine the direction of free fall acceleration for antimatter in the gravitational field of the Earth. The experiment would confine cryogenic antihydrogen plasma for producing antihydrogen (e.g., by three-body recombination).
Article describes an electronic storage ring that employs the space charge of an electron plasma for focusing. An advantage of the present concept is that slow ions, or even a stationary ion plasma, can be confined. The concept employs an artificially structured boundary, which is defined at present as one that produces a spatially periodic static field such that the spatial period and range of the field are much smaller than the dimensions of a plasma or charged-particle beam that is confined by the field.
April 19, 2013
Pacheco, J. L.; Ordonez, Carlos A. & Weathers, Duncan L.
This article reports a study of a cold target with a high Fermi energy in light of recent research that points to a new phase of hydrogen, which is hypothesized to be related to metallic hydrogen. It has been shown that if the energy transfer between injected ions and target electrons is sufficiently small, net energy gain can be achieved. As such, the target is considered to be composed of nuclei and delocalized electrons.
Article on theoretical and experimental efforts to use dual levitated coils to confine relatively large, cold, dense non-drifting recombining antihydrogen plasmas. The theoretical effort includes the development of a classical trajectory Monte Carlo simulation of confinement. The experimental effort includes levitation of a NdFeB permanent ring magnet, which produces a magnetic field that is qualitatively similar to the field that would be produced by the two coaxial superconducting magnetic coils.
This article examines authentic data samples taken from the Corpus de Referencia del Español Actual (CREA) to uncover any semantic trends commonly observed in verbs taking a sentential complement without the complementizer que in Spanish.
This article discusses the use of metabolic engineering to generate raffinose-family oligosaccharides (RFOs) at the inception of the translocation stream of Arabidopsis thaliana, which loads from the apoplasm and transports predominantly sucrose, and the fate of the sugars through the plant determined.
July 19, 2013
Cao, Te; Lahiri, Ipsita; Singh, Vijay; Louis, Joe; Shah, Jyoti & Ayre, Brian G.
This commentary extends a discussion initiated by Toussaint et al. (Sci Rep 6:22125, 2016) concerning the relationship between global patterns of freshwater fish functional diversity (FD) and its vulnerability to human impacts.
November 19, 2016
Vitule, Jean R. S.; Agostinho, Angela A.; Azevedo-Santos, Valter M.; Daga, Vanessa S.; Darwall, William R. T.; Fitzgerald, Daniel B. et al.
This invited perspectives article presents evidence in support of a morphogenic rational for prosynchronotropy (i.e., the heart starts to beat well before convective blood flow is needed for bulk transport).
This article demonstrates for the first time that different processes in the ontogeny of the early vertebrate embryo (i.e., hypertrophic growth vs. development) have differential sensitivities to altered convective blood flow.
April 19, 2013
Branum, Sylvia R.; Yamada-Fisher, Miho & Burggren, Warren W.
This article examines three congeneric lizards from the southeastern United States (Plestiodon fasciatus, P. inexpectatus, and P. laticeps) and hypothesizes that interspecific differences in metabolic temperature sensitivity locally segregates them across their total range.
This article presents the first analysis of Buruli ulcer at the village level in southwestern Ghana, where prevalence rates are among the highest globally, and explores fine and medium-scale associations with land cover by comparing patterns both within Buruli ulcer clusters and surrounding landscapes.
Comments regarding the article, "Thermochemical properties of para-anisaldehyde (1) + chlorobenzene (2) at temperatures of (303.15, 313.15, and 323.15) K and a pressure of 0.1 MPa," published in 2008 in the Journal of Chemical and Engineering Data.
July 19, 2008
Jouyban, Abolghasem & Acree, William E. (William Eugene)