145 research outputs found
Culture first, customers second : the case of an organizational learning culture in a successful small business.
This dissertation is a case study of a learning culture in a successful small business. It begins with a discussion of the importance of small business to the U.S. economy. The high rate of small business failure is highlighted, along with several factors known to contribute to failure. Of those factors, the limited resource environment within which most small businesses operate is discussed. The reality of limited resources influences small business owner-managers to adopt a risk-averse and conservative approach to business operations. This risk-averse and conservative approach often impacts owner-managers’ attitude toward employee learning. A historical overview of the field of human resource development (HRD) is presented next, including a critical contention that HRD achieves maximum effectiveness when applied with a focus on organizational learning. The conceptual framework used to guide this study suggests that when organizational learning is embraced by a small business, through its central tenets of improving effectiveness, striving for continual learning, and detecting and correcting error, a learning culture can emerge. It is at this point that HRD is viewed as a support mechanism for the learning culture. Instead of being viewed as a tool or something to be done, HRD – formal or informal, intentional or incidental – exists as an outward manifestation of the learning culture. Several findings from this study are helpful to small business, HRD, and organizational learning scholars and practitioners. First, the organization’s learning culture was identified as the greatest contributing factor to business growth. Second, the learning culture was initially established by the owner-manager exclusively. Subsequent recruiting and hiring practices helped identify employees with whom the culture’s values resonated, thus creating greater support for the culture. Over time the culture became self-sustaining. At this point, less leadership influence was required to keep the culture alive. Finally, leadership and employee commitment to learning was instrumental to sustaining the culture long-term
Association of metals with expanded polystyrene in the marine environment.
Expanded polystyrene (EPS) has characteristics distinctive from many thermoplastics that strongly influence its behaviour in the marine environment. However, the extent and nature of its interactions with metals are poorly understood. In the present study, fragments of beached EPS have been retrieved from an urban harbour and an open sandy beach in southwest England and the concentrations, locations and availabilities of various metals (and metalloids) of geochemical importance and anthropogenic significance determined. Total (aqua regia-digestible) metal concentrations at the surface (normalised to a depth of 0.5 cm) were considerably greater than surface concentrations reported for polyolefins retrieved from the same region and, with the exception of Cd, Sb and Zn, were significantly greater than those in unweathered EPS packaging material. Median surface concentrations of Al, As, Co, Fe, Mn, Ni and Sb were significantly greater at the open beach than the harbour, but concentrations of Cu and Pb were significantly greater at the latter. Where measured, concentrations of all metals were similar at the surface and subsurface (0.5 to 1 cm), and availability to 0.7 M HCl ranged from 60 % for Mn and Pb. These results, coupled with visible characteristics, suggest that aqueous and particulate metals are able to interact with the EPS surface via a number of mechanisms (adsorption, precipitation, entrapment) and migrate through the weathered, porous structure to within the polymer matrix. Enrichment factors normalised to Al as a granulometric proxy and relative to a regional baseline indicate "moderately severe" contamination with respect to Cd, Cu, Pb, Sb and Zn in at least one of the environments studied, suggesting that EPS might be a significant carrier and means of exposure for these metals in the marine environment
Examining Australia’s asylum seeker policy through a Critical Race Theory lens
Accountings for social phenomena produce partial representations that remain silent on many things, but the wilful intention to silence accounting itself is a curiosity requiring further attention. Accounting typically serves the motives of the powerful, silencing and marginalising the ‘Other’ (for racial, sexual, religious, power etc. reasons). Disempowerment and obscurity of Others is ubiquitous, possible through the lack of visibility ascribed when unaccounted for by accounting. Yet, when this accounting fails to legitimise the actions of the powerful, accounts become obfuscated. The purpose of this paper is to consider the mystification of accounting by an overarching commitment to inhumane and costly government policy, using the illustrative example of Australia’s offshore immigration detention for asylum seekers
The Music Therapist in School as Outsider
This essay examines the institutional commonalities among several schools in which I have worked as a music therapist, illustrating how thinking about my role as an outsider has informed my therapeutic approach. I refer to the broader concept of the outsider as it relates to both fictional and historical figures and in particular to Sherly Williams's article 'The Therapist as Outsider: The Truth of the Stranger' (1999) in which she compares the therapist to the archetypal figures of the fool and the seer. Finally, I link these ideas to Winnicott's concept of play, presenting the music therapist's role in school as that of an advocate for fostering creative impulses, which can at times be at odds with (or perhaps complementary to) the central educational aims of the school
Evaluation of Hands-Free Devices for Space Habitat Maintenance Procedures
Currently, International Space Station (ISS) crews use a laptop computer to display procedures for performing onboard maintenance tasks. This approach has been determined to be suboptimal. A heuristic evaluation and two studies have been completed to test commercial off-the-shelf (COTS) "near-eye" heads up displays (HUDs) for support of these types of maintenance tasks. In both studies, subjects worked through electronic procedures to perform simple maintenance tasks. As a result of the Phase I study, three HUDs were down-selected to one. In the Phase II study, the HUD was compared against two other electronic display devices - a laptop computer and an e-book reader. Results suggested that adjustability and stability of the HUD display were the most significant acceptability factors to consider for near-eye displays. The Phase II study uncovered a number of advantages and disadvantages of the HUD relative to the laptop and e-book reader for interacting with electronic procedures
Population genomic and historical analysis suggests a global invasion by bridgehead processes in Mimulus guttatus
© 2021, The Author(s). Imperfect historical records and complex demographic histories present challenges for reconstructing the history of biological invasions. Here, we combine historical records, extensive worldwide and genome-wide sampling, and demographic analyses to investigate the global invasion of Mimulus guttatus from North America to Europe and the Southwest Pacific. By sampling 521 plants from 158 native and introduced populations genotyped at >44,000 loci, we determined that invasive M. guttatus was first likely introduced to the British Isles from the Aleutian Islands (Alaska), followed by admixture from multiple parts of the native range. We hypothesise that populations in the British Isles then served as a bridgehead for vanguard invasions worldwide. Our results emphasise the highly admixed nature of introduced M. guttatus and demonstrate the potential of introduced populations to serve as sources of secondary admixture, producing novel hybrids. Unravelling the history of biological invasions provides a starting point to understand how invasive populations adapt to novel environments
Temporal matches between monarch butterfly and milkweed population changes over the past 25,000 years.
A taxonomic, genetic and ecological data resource for the vascular plants of Britain and Ireland
The vascular flora of Britain and Ireland is among the most extensively studied in the world, but the current knowledge base is fragmentary, with taxonomic, ecological and genetic information scattered across different resources. Here we present the first comprehensive data repository of native and alien species optimized for fast and easy online access for ecological, evolutionary and conservation analyses. The inventory is based on the most recent reference flora of Britain and Ireland, with taxon names linked to unique Kew taxon identifiers and DNA barcode data. Our data resource for 3,227 species and 26 traits includes existing and unpublished genome sizes, chromosome numbers and life strategy and life-form assessments, along with existing data on functional traits, species distribution metrics, hybrid propensity, associated biomes, realized niche description, native status and geographic origin of alien species. This resource will facilitate both fundamental and applied research and enhance our understanding of the flora’s composition and temporal changes to inform conservation efforts in the face of ongoing climate change and biodiversity loss
The Genomic Signature of Crop-Wild Introgression in Maize
The evolutionary significance of hybridization and subsequent introgression
has long been appreciated, but evaluation of the genome-wide effects of these
phenomena has only recently become possible. Crop-wild study systems represent
ideal opportunities to examine evolution through hybridization. For example,
maize and the conspecific wild teosinte Zea mays ssp. mexicana, (hereafter,
mexicana) are known to hybridize in the fields of highland Mexico. Despite
widespread evidence of gene flow, maize and mexicana maintain distinct
morphologies and have done so in sympatry for thousands of years. Neither the
genomic extent nor the evolutionary importance of introgression between these
taxa is understood. In this study we assessed patterns of genome-wide
introgression based on 39,029 single nucleotide polymorphisms genotyped in 189
individuals from nine sympatric maize-mexicana populations and reference
allopatric populations. While portions of the maize and mexicana genomes were
particularly resistant to introgression (notably near known
cross-incompatibility and domestication loci), we detected widespread evidence
for introgression in both directions of gene flow. Through further
characterization of these regions and preliminary growth chamber experiments,
we found evidence suggestive of the incorporation of adaptive mexicana alleles
into maize during its expansion to the highlands of central Mexico. In
contrast, very little evidence was found for adaptive introgression from maize
to mexicana. The methods we have applied here can be replicated widely, and
such analyses have the potential to greatly informing our understanding of
evolution through introgressive hybridization. Crop species, due to their
exceptional genomic resources and frequent histories of spread into sympatry
with relatives, should be particularly influential in these studies
Excess Mechanical Loss Associated with Dielectric Mirror Coatings on Test Masses in Interferometric Gravitational Wave Detectors
Interferometric gravitational wave detectors use mirrors whose substrates are
formed from materials of low intrinsic mechanical dissipation. The two most
likely choices for the test masses in future advanced detectors are fused
silica or sapphire. These test masses must be coated to form mirrors, highly
reflecting at 1064nm. We have measured the excess mechanical losses associated
with adding dielectric coatings to substrates of fused silica and calculate the
effect of the excess loss on the thermal noise in an advanced interferometer.Comment: Submitted to LSC (internal) review Sept. 20, 2001. To be submitted to
Phys. Lett.
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