16,887 research outputs found
Methodology for Adjusting GPRA Workforce Development Program Performance Targets for the Effects of Business Cycles
The U.S. Department of Laborâs Employment and Training Administration issued Training and Employment Guidance Letter (TEGL) 09-08 Change 1 on June 5, 2009. This guidance letter revises the Government Performance and Results Act (GPRA) performance measures for federal workforce development programs to take into account the effect of the recession on participantsâ labor market and educational outcomes. As described in the TEGL, the performance targets of the various workforce development programs have been developed for use for the years PY2008 through PY2010. They are intended to be used for PY2009 performance target negotiations and will appear in the Presidentâs Budget Request for FY2010. The performance targets for future program years, adjusted for unemployment rates, are driven by the economic assumptions of the Presidentâs Budget Request for FY2010. The revised performance targets are based on analysis carried out as part of a study conducted for the U.S. Department of Labor by the W. E. Upjohn Institute for Employment Research. This working paper has two purposes. The first is to describe the methodology used to estimate the relationship between unemployment rates and workforce program performance targets. The second is to describe the procedures used to adjust the GPRA performance targets for changes in unemployment rates during the current recession and over the business cycle. The study described in this working paper is the initial phase of an ongoing analysis of the effect of economic conditions on workforce development program outcomes.performance standards, workforce programs, GPRA
Influence of oxygen vacancy on the electronic structure of HfO film
We investigated the unoccupied part of the electronic structure of the
oxygen-deficient hafnium oxide (HfO) using soft x-ray absorption
spectroscopy at O and Hf edges. Band-tail states beneath the
unoccupied Hf 5 band are observed in the O -edge spectra; combined with
ultraviolet photoemission spectrum, this indicates the non-negligible
occupation of Hf 5 state. However, Hf -edge magnetic circular dichroism
spectrum reveals the absence of a long-range ferromagnetic spin order in the
oxide. Thus the small amount of electron gained by the vacancy formation
does not show inter-site correlation, contrary to a recent report [M.
Venkatesan {\it et al.}, Nature {\bf 430}, 630 (2004)].Comment: 5 pages, 4 figures, submitted to Phys. Rev.
Putative spin liquid in the triangle-based iridate BaIrTiO
We report on thermodynamic, magnetization, and muon spin relaxation
measurements of the strong spin-orbit coupled iridate BaIrTiO,
which constitutes a new frustration motif made up a mixture of edge- and
corner-sharing triangles. In spite of strong antiferromagnetic exchange
interaction of the order of 100~K, we find no hint for long-range magnetic
order down to 23 mK. The magnetic specific heat data unveil the -linear and
-squared dependences at low temperatures below 1~K. At the respective
temperatures, the zero-field muon spin relaxation features a persistent spin
dynamics, indicative of unconventional low-energy excitations. A comparison to
the isostructural compound BaRuTiO suggests that a concerted
interplay of compass-like magnetic interactions and frustrated geometry
promotes a dynamically fluctuating state in a triangle-based iridate.Comment: Physical Review B accepte
Photoproduction off the nucleon revisited: Evidence for a narrow N(1688) resonance?
Revised analysis of beam asymmetry for the photoproduction on
the free proton reveals a structure at GeV. Fit of the
experimental data based on the E429 solution of the SAID partial wave analysis
suggests a narrow ( MeV) resonance. Possible candidates are
, or resonances. The result is considered in
conjunction with the recent evidence for a bump-like structure at GeV in the quasi-free photoproduction on the neutron.Comment: Contribution to the Workshop on the Physics of the Excited Nucleons
NSTAR2007, Bonn, Germany, Sept. 5 - 8 2007. To be published in Eur.Phys.J.
Downstream Migrations of Juvenile Salmon and Other Fishes in the Upper Yukon River
The Yukon River is the fourth largest river in North America, yet the ecology of its fishes has not been well described. During the spring and summer of 2002â 04, we sampled the downstream migrations of fishes in the Yukon River mainstem near the Canada-U.S. border, using a rotary auger trap. Age-0 juvenile chinook salmon, Oncorhynchus tshawytscha, were the most common fish in the catch, and they peaked in abundance in mid-June. Smaller numbers of age-1 chinook salmon and age-0 chum salmon, O. keta, were caught earlier in the season. Over 80% of the remaining catch consisted of young-of-theyear Coregoninae (whitefish), presumably moving from natal areas to summer rearing habitats. Few adult whitefish were captured, probably because our sampling terminated before fall spawning migrations began. Both juveniles and adults were captured for six other winter or spring spawning species that we encountered. Our results indicate that the Yukon River mainstem is used extensively as a migration corridor. This reach of the mainstem has very high suspended sediment levels in summer; its significance as rearing habitat remains unknown. Further studies are required to delineate the extent of migrations and the population structure for the non-anadromous species.Le fleuve Yukon est le quatriĂšme plus grand fleuve de lâAmĂ©rique du Nord et pourtant, lâĂ©cologie de ses poissons nâa pas Ă©tĂ© bien dĂ©crite. Au printemps et Ă lâĂ©tĂ© des annĂ©es 2002 Ă 2004, nous avons Ă©chantillonnĂ© les migrations en aval des poissons du cours principal du fleuve Yukon, prĂšs de la frontiĂšre canado-amĂ©ricaine et ce, Ă lâaide dâun piĂšge rotatif. Le saumon quinnat dâĂąge 0-juvĂ©nile, Oncorhynchus tshawytscha, Ă©tait le poisson le plus souvent capturĂ©, et son abondance Ă©tait Ă son meilleur Ă la mi-juin. De plus petits nombres de saumon quinnat dâĂąge 1 et de saumon kĂ©ta dâĂąge 0, O. keta, ont Ă©tĂ© attrapĂ©s au dĂ©but de la saison. Plus de 80 % du reste des poissons capturĂ©s consistait en des Coregoninae (ciscos) jeunes de lâannĂ©e, qui Ă©taient sans doute en voie de dĂ©placement, passant de leur secteur natal aux habitats dâĂ©levage dâĂ©tĂ©. Peu de ciscos adultes ont Ă©tĂ© capturĂ©s, probablement parce que notre Ă©chantillonnage a pris fin avant les migrations de reproduction dâautomne. Des poissons juvĂ©niles et adultes ont Ă©tĂ© attrapĂ©s dans le cas de six autres espĂšces de reproduction dâhiver ou de printemps que nous avons rencontrĂ©es. Nos rĂ©sultats indiquent que le cours principal du fleuve Yukon sert Ă©normĂ©ment de corridor de migration. Dans cette partie du cours principal, les taux de sĂ©diments en suspension sont trĂšs Ă©levĂ©s lâĂ©tĂ©; son importance en tant quâhabitat dâĂ©levage demeure inconnue. Des Ă©tudes plus poussĂ©es sâimposent dans le but de dĂ©limiter lâĂ©tendue des migrations et la structure de population des espĂšces non anadromes
Hysteresis and the dynamic phase transition in thin ferromagnetic films
Hysteresis and the non-equilibrium dynamic phase transition in thin magnetic
films subject to an oscillatory external field have been studied by Monte Carlo
simulation. The model under investigation is a classical Heisenberg spin system
with a bilinear exchange anisotropy in a planar thin film geometry with
competing surface fields. The film exhibits a non-equilibrium phase transition
between dynamically ordered and dynamically disordered phases characterized by
a critical temperature Tcd, whose location of is determined by the amplitude H0
and frequency w of the applied oscillatory field. In the presence of competing
surface fields the critical temperature of the ferromagnetic-paramagnetic
transition for the film is suppressed from the bulk system value, Tc, to the
interface localization-delocalization temperature Tci. The simulations show
that in general Tcd < Tci for the model film. The profile of the time-dependent
layer magnetization across the film shows that the dynamically ordered and
dynamically disordered phases coexist within the film for T < Tcd. In the
presence of competing surface fields, the dynamically ordered phase is
localized at one surface of the film.Comment: PDF file, 21 pages including 8 figure pages; added references,typos
added; to be published in PR
Methodology for Adjusting GPRA Workforce Development Program Performance Targets for the Effects of Business Cycles
The U.S. Department of Labor\u27s Employment and Training Administration issued Training and Employment Guidance Letter (TEGL) 09-08 Change 1 on June 5, 2009. This guidance letter revises the Government Performance and Results Act (GPRA) performance measures for federal workforce development programs to take into account the effect of the recession on participants\u27 labor market and educational outcomes. As described in the TEGL, the performance targets of the various workforce development programs have been developed for use for the years PY2008 through PY2010. They are intended to be used for PY2009 performance target negotiations and will appear in the President\u27s Budget Request for FY2010. The performance targets for future program years, adjusted for unemployment rates, are driven by the economic assumptions of the President\u27s Budget Request for FY2010. The revised performance targets are based on analysis carried out as part of a study conducted for the U.S. Department of Labor by the W. E. Upjohn Institute for Employment Research. This working paper has two purposes. The first is to describe the methodology used to estimate the relationship between unemployment rates and workforce program performance targets. The second is to describe the procedures used to adjust the GPRA performance targets for changes in unemployment rates during the current recession and over the business cycle. The study described in this working paper is the initial phase of an ongoing analysis of the effect of economic conditions on workforce development program outcomes
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