Arkansas Soybean Performance Tests 2008

Soybean cultivar performance tests are conducted each year in Arkansas by the University of Arkansas Division of Agriculture. The tests provide information to companies developing cultivars and/or marketing seed within the state, and aid the Arkansas Cooperative Extension Service in formulating cultivar recommendations for soybean producer

Arkansas Soybean Performance Tests 2007

Soybean cultivar performance tests are conducted each year in Arkansas by the University of Arkansas Division of Agriculture. The tests provide information to companies developing cultivars and/or marketing seed within the State, and aid the Arkansas Cooperative Extension Service in formulating cultivar recommendations for soybean producers

Wages And The University Educated: A Paradox Resolved

Analysis of a new data base to study occupations and employment reveals a surplus of university graduates and a movement of many of these individuals, especially those with lower functional literacy, into high-school-level jobs; only university graduates with literacy skills commensurate with their education have received rising wages

Who\u27s Not Working And Why: Employment, Cognitive Skills, Wages, And The Changing U.S. Labor Market

Over the Last Quarter-Century, the U.S. labor market has experienced some disturbing trends. Despite apparent economic prosperity, joblessness among less-educated prime-age males is rising and, in addition, an increasing number of university graduates are taking high-school jobs. Moreover, except for a thin layer of university-educated workers, most in the labor force are experiencing stagnating or falling real wages. Simultaneously, the inequality of wages is increasing within most groups. Using an entirely new approach that takes account of the cognitive skills of U.S. workers and the detailed occupational structure of the labor force, Frederic L. Pryor and David L. Schaffer explore the underlying causes of these trends. To explain both employment and wages, they demonstrate that what a worker knows is becoming increasingly more important than a worker\u27s formal education. They also present evidence that because of differences in wages between men and women, women are replacing men in many occupations. Finally, they synthesize these and other labor market characteristics to explain the increasing inequality of wages. The authors have written this empirical study in non-technical language for those concerned with labor market problems and policies. For specialists they analyze a variety of technical issues in the appendice

The GEOS-3 orbit determination investigation

The nature and improvement in satellite orbit determination when precise altimetric height data are used in combination with conventional tracking data was determined. A digital orbit determination program was developed that could singly or jointly use laser ranging, C-band ranging, Doppler range difference, and altimetric height data. Two intervals were selected and used in a preliminary evaluation of the altimeter data. With the data available, it was possible to determine the semimajor axis and eccentricity to within several kilometers, in addition to determining an altimeter height bias. When used jointly with a limited amount of either C-band or laser range data, it was shown that altimeter data can improve the orbit solution

Eight-band calculations of strained InAs/GaAs quantum dots compared with one, four, and six-band approximations

The electronic structure of pyramidal shaped InAs/GaAs quantum dots is calculated using an eight-band strain dependent $\bf k\cdot p$ Hamiltonian. The influence of strain on band energies and the conduction-band effective mass are examined. Single particle bound-state energies and exciton binding energies are computed as functions of island size. The eight-band results are compared with those for one, four and six bands, and with results from a one-band approximation in which m(r) is determined by the local value of the strain. The eight-band model predicts a lower ground state energy and a larger number of excited states than the other approximations.Comment: 8 pages, 7 figures, revtex, eps

The automated array assembly task of the low-cost silicon solar array project, phase 2

Several specific processing steps as part of a total process sequence for manufacturing silicon solar cells were studied. Ion implantation was identified as the preferred process step for impurity doping. Unanalyzed beam ion implantation was shown to have major cost advantages over analyzed beam implantation. Further, high quality cells were fabricated using a high current unanalyzed beam. Mechanically masked plasma patterning of silicon nitride was shown to be capable of forming fine lines on silicon surfaces with spacings between mask and substrate as great as 250 micrometers. Extensive work was performed on advances in plated metallization. The need for the thick electroless palladium layer was eliminated. Further, copper was successfully utilized as a conductor layer utilizing nickel as a barrier to copper diffusion into the silicon. Plasma etching of silicon for texturing and saw damage removal was shown technically feasible but not cost effective compared to wet chemical etching techniques

Arkansas Corn and Grain Sorghum Performance Tests 2008

Corn and grain sorghum performance tests are conducted each year in Arkansas by the University of Arkansas Division of Agriculture. The tests provide information to companies marketing seed within the state and aid the Arkansas Cooperative Extension Service in formulating recommendations for producers

Arkansas Corn and Grain Sorghum Performance Tests 2009

Corn and grain sorghum performance tests are conducted each year in Arkansas by the University of Arkansas Division of Agriculture. The tests provide information to companies marketing seed within the state and aid the Arkansas Cooperative Extension Service in formulating recommendations for producers