Psalms for Skeptics (101-150)

Sparked by phrases from the book of Psalms, these poems question and occasionally affirm our everyday ideas about life, mortality, the afterlife, God, family, and belief. In vigorous contemporary language—complaining, lamenting, and wisecracking on everything from Job\u27s wife to baseball, crows to angels, circus elephants to Mary Magdalene—but in traditional form, these sonnets, or little songs, speak what we feel, not what we ought to say. [From the publisher]https://cupola.gettysburg.edu/books/1060/thumbnail.jp

Airborne lidar observations of Arctic polar stratospheric clouds

Polar stratospheric clouds (PSC's) have been detected repeatedly during Arctic and Antarctic winters since 1978/1979 by the SAM II (Stratospheric Aerosol Measurement II) instrument aboard the NIMBUS-7 satellite. PSC's are believed to form when supercooled sulfuric acid droplets freeze, and subsequently grow by deposition of ambient water vapor as the local stratospheric temperature falls below the frost point. In order to study the characteristics of PSC's at higher spatial and temporal resolution than that possible from the satellite observations, aircraft missions were conducted within the Arctic polar night vortex in Jan. 1984 and Jan. 1986 using the NASA Langley Research Center airborne dual polarization ruby lidar system. A synopsis of the 1984 and 1986 PSC observations is presented illustrating short range spatial changes in cloud structure, the variation of backscatter ratio with temperature, and the depolarization characterics of cloud layers. Implications are noted with regard to PSC particle characteristics and the physical process by which the clouds are thougth to form

Crotalus tortugensis

Number of Pages: 5Integrative BiologyGeological Science

Crotalus enyo

Number of Pages: 6Integrative BiologyGeological Science

IMPACTS OF THE FARM FINANCIAL CRISIS: RESULTS OF THE 1989 REGIONAL FARM SURVEY FOR MINNESOTA

Agricultural Finance,

Critical Currents of Josephson-Coupled Wire Arrays

We calculate the current-voltage characteristics and critical current I_c^{array} of an array of Josephson-coupled superconducting wires. The array has two layers, each consisting of a set of parallel wires, arranged at right angles, such that an overdamped resistively-shunted junction forms wherever two wires cross. A uniform magnetic field equal to f flux quanta per plaquette is applied perpendicular to the layers. If f = p/q, where p and q are mutually prime integers, I_c^{array}(f) is found to have sharp peaks when q is a small integer. To an excellent approximation, it is found in a square array of n^2 plaquettes, that I_c^{array}(f) \propto (n/q)^{1/2} for sufficiently large n. This result is interpreted in terms of the commensurability between the array and the assumed q \times q unit cell of the ground state vortex lattice.Comment: 4 pages, 4 figure