328 research outputs found
Identity: Societal And Legal Ramifications With Special Focus On Transsexuals
The law is stuck on binary or categorical approaches.2 One is either
this or thatâheterosexual or homosexual; male or female; black or white;
and the list can go on and on.3 This article posits that this approach should
not be the way in which we categorize peopleâs personhoo
Effects of different needles and substrates on CuInS2 deposited by electrostatic spray deposition
Copper indium disulphide (CuInS2) thin films were deposited using the electrostatic spray deposition method. The effects of applied voltage and solution flow rate on the aerosol cone shape, film composition, surface morphology and current conversion were investigated. The effect of aluminium substrates and transparent fluorine doped tin oxide (SnO2:F) coated glass substrates on the properties of as-deposited CuInS2 films were analysed. An oxidation process occurs during the deposition onto the metallic substrates which forms an insulating layer between the photoactive film and substrate. The effects of two different spray needles on the properties of the as-deposited films were also studied. The results reveal that the use of a stainless steel needle results in contamination of the film due to the transfer of metal impurities through the spray whilst this is not seen for the glass needle. The films were characterised using a number of different analytical techniques such as X-ray diffraction, scanning electron microscopy, Rutherford back-scattering and secondary ion mass spectroscopy and opto-electronic measurements
Video: Adding to Your Case: Examining and Cross Examining Expert Witnesses
Learn skills for using expert witness testimony at trial: Developing strategy for selecting topics and order of presentation Using proper form of questioning on direct and cross Understanding rules of evidence, procedure, and ethics Two role play demonstrations help you learn technique
Perceptions About The ISO 9000 (2000) Quality System Standard Revision And Its Value: The Dutch Experience
The aim of the research reported in this paper is to assess the relative value of the 2000 version of the ISO 9000 series of quality management system standards in comparison to the 1994 version. 773 organisations in the Netherlands which have all been certified to the ISO 9000 standard were surveyed (a response rate of 21.4%) and of these only 22 had not yet converted to the 2000 version of the standard. Amongst the major findings are an overall positive perception of the value of the ISO 9000 (2000) quality system standard and a consistently higher appreciation of the 2000 version compared to the 1994 version
The E-Business Research Network: summary of the results of the Dutch pilot survey
A project has been started with the intention to develop an E-Business Research Network on E-business related research in business and management. The initiative has been taken in co-operation between Erasmus University and UMIST to develop a project in which the first stage concerns the development of a database of researchers and their activities in e-business related research in business and management. The next stage will be to investigate the needs in companies in relation to e-business. It is hoped that an Internet-based database will stimulate interaction and communication between the supply and demand sides of e-business related research. This assumption is based on our previous research in Quality Management conducted in the early to mid 1990's.
This paper describes the project and also summarises the results of the first pilot questionnaire based on responses from researchers at universities in The Netherlands
Dust attenuation and star formation in the nearby universe: the ultraviolet and far-infrared points of view
We make use of the on-going All Imaging Survey of the UV GALEX satellite
cross-correlated with the IRAS all sky survey to build samples of galaxies
trully selected in far-infrared or in ultraviolet. We discuss the amount of
dust attenuation and the star formation rates for these galaxies and compare
the properties of the galaxies selected in FIR or in UV.Comment: 4 pages, proceedings of the conference: "Starbursts 2004 - From 30
Doradus to Lyman break galaxies" held in Cambridge, 6-10 September 200
Spatial gradients in the cosmological constant
It is possible that there may be differences in the fundamental physical
parameters from one side of the observed universe to the other. I show that the
cosmological constant is likely to be the most sensitive of the physical
parameters to possible spatial variation, because a small variation in any of
the other parameters produces a huge variation of the cosmological constant. It
therefore provides a very powerful {\em indirect} evidence against spatial
gradients or temporal variation in the other fundamental physical parameters,
at least 40 orders of magnitude more powerful than direct experimental
constraints. Moreover, a gradient may potentially appear in theories where the
variability of the cosmological constant is connected to an anthropic selection
mechanism, invoked to explain the smallness of this parameter. In the Hubble
damping mechanism for anthropic selection, I calculate the possible gradient.
While this mechanism demonstrates the existence of this effect, it is too small
to be seen experimentally, except possibly if inflation happens around the
Planck scale.Comment: 12 page
Reconstructing anatomy from electro-physiological data
Here we show how it is possible to make estimates of brain structure based on MEG data. We do this by reconstructing functional estimates onto distorted cortical manifolds parameterised in terms of their spherical harmonics. We demonstrate that both empirical and simulated MEG data give rise to consistent and plausible anatomical estimates. Importantly, the estimation of structure from MEG data can be quantified in terms of millimetres from the true brain structure. We show, for simulated data, that the functional assumptions which are closer to the functional ground-truth give rise to anatomical estimates that are closer to the true anatomy
âThe Brickâ is not a brick: a comprehensive study of the structure and dynamics of the central molecular zone cloud G0.253+0.016
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2019 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.In this paper we provide a comprehensive description of the internal dynamics of G0.253+0.016 (a.k.a. âthe Brickâ); one of the most massive and dense molecular clouds in the Galaxy to lack signatures of widespread star formation. As a potential host to a future generation of high-mass stars, understanding largely quiescent molecular clouds like G0.253+0.016 is of critical importance. In this paper, we reanalyse Atacama Large Millimeter Array cycle 0 HNCO J = 4(0, 4) â 3(0, 3) data at 3âmm, using two new pieces of software that we make available to the community. First, SCOUSEPY, a Python implementation of the spectral line fitting algorithm SCOUSE. Secondly, ACORNS (Agglomerative Clustering for ORganising Nested Structures), a hierarchical n-dimensional clustering algorithm designed for use with discrete spectroscopic data. Together, these tools provide an unbiased measurement of the line-of-sight velocity dispersion in this cloud, Ïvlos,1D=4.4±2.1 kmâsâ1, which is somewhat larger than predicted by velocity dispersion-size relations for the central molecular zone (CMZ). The dispersion of centroid velocities in the plane of the sky are comparable, yielding Ïvlos,1D/Ïvpos,1DâŒ1.2±0.3â . This isotropy may indicate that the line-of-sight extent of the cloud is approximately equivalent to that in the plane of the sky. Combining our kinematic decomposition with radiative transfer modelling, we conclude that G0.253+0.016 is not a single, coherent, and centrally condensed molecular cloud; âthe Brickâ is not a brick. Instead, G0.253+0.016 is a dynamically complex and hierarchically structured molecular cloud whose morphology is consistent with the influence of the orbital dynamics and shear in the CMZ
Can forest management based on natural disturbances maintain ecological resilience?
Given the increasingly global stresses on forests, many ecologists argue that managers must maintain ecological resilience: the capacity of ecosystems to absorb disturbances without undergoing fundamental change. In this review we ask: Can the emerging paradigm of natural-disturbance-based management (NDBM) maintain ecological resilience in managed forests? Applying resilience theory requires careful articulation of the ecosystem state under consideration, the disturbances and stresses that affect the persistence of possible alternative states, and the spatial and temporal scales of management relevance. Implementing NDBM while maintaining resilience means recognizing that (i) biodiversity is important for long-term ecosystem persistence, (ii) natural disturbances play a critical role as a generator of structural and compositional heterogeneity at multiple scales, and (iii) traditional management tends to produce forests more homogeneous than those disturbed naturally and increases the likelihood of unexpected catastrophic change by constraining variation of key environmental processes. NDBM may maintain resilience if silvicultural strategies retain the structures and processes that perpetuate desired states while reducing those that enhance resilience of undesirable states. Such strategies require an understanding of harvesting impacts on slow ecosystem processes, such as seed-bank or nutrient dynamics, which in the long term can lead to ecological surprises by altering the forest's capacity to reorganize after disturbance
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