3,195 research outputs found
Big Data Techniques and Talent Management: Recommendations for Organizations and a Research Agenda for I-O Psychologists
Big data and its applicability to talent management (TM) as defined by Rotolo et al. (2018) has already been recognized by many outside the field of I-O psychology. The market is beginning to include offerings from vendors for products that use some combination of big data techniques to process vast amounts of data or previously unanalyzable data, which they claim will improve components of TM for organizations. Unfortunately, as noted in the focal article, this “frontier” issue makes it difficult for organizations to separate the wheat from the chaff. Further, with few exceptions, I-O psychology is just beginning to inform organizations about whether and how big data can be used for the purposes of TM
The PASTEL catalogue of stellar parameters
The PASTEL catalogue is an update of the [Fe/H] catalogue, published in 1997
and 2001. It is a bibliographical compilation of stellar atmospheric parameters
providing (Teff,logg,[Fe/H]) determinations obtained from the analysis of high
resolution, high signal-to-noise spectra, carried out with model atmospheres.
PASTEL also provides determinations of the one parameter Teff based on various
methods. It is aimed in the future to provide also homogenized atmospheric
parameters and elemental abundances, radial and rotational velocities. A web
interface has been created to query the catalogue on elaborated criteria.
PASTEL is also distributed through the CDS database and VizieR. To make it as
complete as possible, the main journals have been surveyed, as well as the CDS
database, to find relevant publications. The catalogue is regularly updated
with new determinations found in the literature. As of Febuary 2010, PASTEL
includes 30151 determinations of either Teff or (Teff,logg,[Fe/H]) for 16649
different stars corresponding to 865 bibliographical references. Nearly 6000
stars have a determination of the three parameters (Teff,logg,[Fe/H]) with a
high quality spectroscopic metallicity.Comment: 5 pages, accepted for publication in A&A. The PASTEL catalogue can be
queried at http://pastel.obs.u-bordeaux1.fr/ or
http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=B/paste
Spin gating electrical current
We use an aluminium single electron transistor with a magnetic gate to
directly quantify the chemical potential anisotropy of GaMnAs materials.
Uniaxial and cubic contributions to the chemical potential anisotropy are
determined from field rotation experiments. In performing magnetic field sweeps
we observe additional isotropic magnetic field dependence of the chemical
potential which shows a non-monotonic behavior. The observed effects are
explained by calculations based on the kinetic
exchange model of ferromagnetism in GaMnAs. Our device inverts the conventional
approach for constructing spin transistors: instead of spin-transport
controlled by ordinary gates we spin-gate ordinary charge transport.Comment: 5 pages, 4 figure
The use of tensiometers to control the irrigation of nursery stock in containers.
End of Project ReportThe use of digital tensiometers to control the irrigation of nursery stock in
containers was studied over a three year period. Over this time the tensiometers
performed satisfactorily and successfully automated the irrigation of the plants.
The results indicate the feasibility of using them to control nursery stock irrigation
under Irish conditions. An irrigation tension of 50 hPa to trigger an irrigation period resulted in larger
plants than those grown under drier regimes with irrigation tensions of 100 and
200 hPa. Measurements of stomatal resistance indicated that the plants in the
drier regimes were growing under greater moisture stress.
The drier regimes reduced the number of irrigations and also the overall usage of
water. They reduced plant size but did not impair plant appearance. It may be
possible to use this approach in the future to control plant growth.
There was no difference in performance between plants gown with ebb and flood
irrigation and those irrigated via overhead spraylines. The ebb and flood system
gave a considerable reduction in water use.European Union Structural Funds
(EAGGF
- …