283 research outputs found

    Team perceived virtuality: an emergent state perspective

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    The rapid changes of work, the ease of mobility, and ubiquitous use of virtual tools have fundamentally changed the way that teamwork in modern organizations is accomplished. Although these developments have elicited a broad range of studies focusing on the phenomenon of team virtuality, the construct itself is still tied to conceptual ambiguities, opposing theoretical underpinnings, and inconsistent findings. The present paper synthesizes the structural and social-constructivist elements of team virtuality in order to introduce the novel concept of team perceived virtuality (TPV), embedded within a theoretical model of its team-level emergence. We define TPV as a cognitive-affective team emergent state which is grounded in collectively experienced feelings of distance and perceptions of information deficits. We further describe how TPV emerges as a function of team membersā€™ collectively developed co-constructions and identify antecedents that contribute towards this emergence. By disentangling perceptions from structural properties, the present paper conceptually advances our understanding of team virtuality beyond its structural characteristics. Ultimately, this conceptual work serves as a starting point for future research on team virtuality as a collectively constructed, team-level emergent construct.info:eu-repo/semantics/acceptedVersio

    Knocking on Heavenā€™s door: User preferences on digital cultural distribution

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    This paper explores the social, demographic and attitudinal basis of consumer support of a Copyright Compensation System (CCS), which, for a small monthly fee would legalise currently infringing online social practices such as private copying from illegal sources and online sharing of copyrighted works. We do this by first identifying how different online and offline, legal and illegal, free and paying content acquisition channels are used in the media market using a cluster-based classification of respondents. Second, we assess the effect of cultural consumption on the support for a shift from the status quo towards alternative, CCS-based forms of digital cultural content distribution. Finally, we link these two analyses to identify the factors that drive the dynamics of change in digital cultural consumption habits. Our study shows significant support to a CCS compared to the status quo by both occasional and frequent buyers of cultural goods, despite the widespread adoption of legal free and paying online services by consumers. The nature of these preferences are also explored with the inclusion of consumer preference intensities regarding certain CCS attributes. Our results have relevant policy implications, for they outline CCS as a reform option. In particular, they point evidence-based copyright reform away from its current direction in the EU of stronger enforcement measures, additional exclusive rights, and increased liability and duties o

    The politics of the digital single market:Culture vs. competition vs. copyright

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    This paper examines the implications for European music culture of the European Unionā€™s Digital Single Market strategy. It focuses on the regulatory framework being created for the management of copyright policy, and in particular the role played by Collective Management Organisations (or Collecting Societies). One of the many new opportunities created by digitalization has been the music streaming services. These depend on consumers being able to access music wherever they are, but such a system runs counter to the management of rights on a national basis and through collecting organisations who act as monopolies within their own territories. The result has been ā€˜geo-blockingā€™. The EU has attempted to resolve this problem in a variety of ways, most recently in a Directive designed to reform the CMOs. In this paper, we document these various efforts, showing them to be motivated by a deep-seated and persisting belief in the capacity of ā€˜competitionā€™ to resolve problems that, we argue, actually lie elsewhere - in copyright policy itself. The result is that the EUā€™s intervention fails to address its core concern and threatens the diversity of European music culture by rewarding those who are already commercially successful

    Going means trouble and staying makes it double: the value of licensing recorded music online

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    This paper discusses whether a copyright compensation system (CCS) for recorded musicā€”endowing private Internet subscribers with the right to download and use works in return for a feeā€”would be welfare increasing. It reports on the results of a discrete choice experiment conducted with a representative sample of the Dutch population consisting of 4986 participants. Under some conservative assumptions, we find that applied only to recorded music, a mandatory CCS could increase the welfare of rights holders and users in the Netherlands by over ā‚¬600 million per year (over ā‚¬35 per capita). This far exceeds current rights holder revenues from the market of recorded music of ca. ā‚¬144 million per year. A monthly CCS fee of ca. ā‚¬1.74 as a surcharge on Dutch Internet subscriptions would raise the same amount of revenues to rights holders as the current market for recorded music. With a voluntary CCS, the estimated welfare gains to users and rights holders are even greater for CCS fees below ā‚¬20 on the user side. A voluntary CCS would also perform better in the long run, as it could retain a greater extent of market coordination. The results of our choice experiment indicate that a well-designed CCS for recorded music would simultaneously make users and rights holders better off. This result holds even if we correct for frequently observed rates of overestimation in contingent valuation studies

    The Symptom Monitoring with Feedback Trial (SWIFT):protocol for a registryā€‘based cluster randomised controlled trial in haemodialysis

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    BACKGROUND: Kidney failure prevalence is increasing worldwide. Haemodialysis, peritoneal dialysis or kidney transplantation are undertaken to extend life with kidney failure. People receiving haemodialysis commonly experience fatigue, pain, nausea, cramping, itching, sleeping difficulties, anxiety and depression. This symptom burden contributes to poor health-related quality of life (QOL) and is a major reason for treatment withdrawal and death. The Symptom monitoring WIth Feedback Trial (SWIFT) will test the hypothesis that regular symptom monitoring with feedback to people receiving haemodialysis and their treating clinical team can improve QOL. METHODS: We are conducting an Australia and New Zealand Dialysis and Transplant (ANZDATA) registry-based cluster randomised controlled trial to determine the clinical- and cost-effectiveness at 12 months, of 3-monthly symptom monitoring using the Integrated Palliative Outcome Scale-Renal (IPOS-Renal) survey with clinician feedback, compared with usual care among adults treated with haemodialysis. Participants complete symptom scoring using a tablet, which are provided to participants and to clinicians. The trial aims to recruit 143 satellite haemodialysis centres, (up to 2400 participants). The primary outcome is change in health-related QOL, as measured by EuroQol 5-Dimension, 5-Level (EQ-5D-5L) instrument. Secondary outcomes include overall survival, symptom severity (including haemodialysis-associated fatigue), healthcare utilisation and cost-effectiveness. DISCUSSION: SWIFT is the first registry-based trial in the Australian haemodialysis population to investigate whether regular symptom monitoring with feedback to participants and clinicians improves QOL. SWIFT is embedded in the ANZDATA Registry facilitating pragmatic recruitment from public and private dialysis clinics, throughout Australia. SWIFT will inform future collection, storage and reporting of patient-reported outcome measures (PROMs) within a clinical quality registry. As the first trial to rigorously estimate the efficacy and cost-effectiveness of routine PROMs collection and reporting in haemodialysis units, SWIFT will provide invaluable information to health services, clinicians and researchers working to improve the lives of those with kidney failure. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry ACTRN12620001061921. Registered on 16 October 2020 SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s13063-022-06355-0

    Three-dimensional transesophageal echocardiography of the atrial septal defects

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    Transesophageal echocardiography has advantages over transthoracic technique in defining morphology of atrial structures. Even though real time three-dimensional echocardiographic imaging is a reality, the off-line reconstruction technique usually allows to obtain higher spatial resolution images. The purpose of this study was to explore the accuracy of off-line three-dimensional transesophageal echocardiography in a spectrum of atrial septal defects by comparing them with representative anatomic specimens

    Entrepreneurial orientation of traditional and modern cultural organisations: cases in George Town UNESCO World Heritage Site

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    George Town World Heritage Site in Penang, Malaysia is well-endowed with creative and cultural resources, and has recently witnessed a rise in relevant rise in creative and cultural activities. This study examines how 'innovation culture' is inculcated and embedded within two local organisations with distinct approaches to innovation. This examination adopts and adapts the concept of Entrepreneurial Orientation, using three constructs: i) innovativeness, ii) risk-taking and iii) pro-activeness. This study administered a purely qualitative research approach by conducting in-depth semi-structured interviews and archival study of the chosen case organisations and their networks. The novelty of this research resides in the choice of case study organisations chosen (i.e. traditional versus modern) where a comparative approach was used to compare and contrast innovation culture and gauge the extent upon which entrepreneurship orientation constructs are prevalent and thriving in these organisations. By documenting the linkages in their value chains, this study managed to understand their resulting social networks and whether such network fosters the incubation of an innovation cluster for the local creative and cultural sectors. This study concluded that traditional cultural organisations tend to be more cautious and even passive in their business approach and decision-making processes, while modern and newer cultural and creative organisations lean towards a more active and dynamic outlook, albeit sometimes constrained by lack of resources, i.e. funding and facilities, as well as impeded by the nature of their informality. These findings can contribute towards shaping pragmatic human resource and creative industry policies for city planners and policy makers, particularly in the George Town World Heritage Site, as well as serving as point of reference for other world heritage sites in the world

    Decrease in shunt volume in patients with cryptogenic stroke and patent foramen ovale

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    <p>Abstract</p> <p>Background</p> <p>In patients with patent foramen ovale (PFO) there is evidence supporting the hypothesis of a change in right-to-left shunt (RLS) over time. Proven, this could have implications for the care of patients with PFO and a history of stroke. The following study addressed this hypothesis in a cohort of patients with stroke and PFO.</p> <p>Methods</p> <p>The RLS volume assessed during hospitalisation for stroke (index event/T0) was compared with the RLS volume on follow-up (T1) (median time between T0 and T1 was 10 months). In 102 patients with a history of stroke and PFO the RLS volume was re-assessed on follow-up using contrast-enhanced transcranial Doppler/duplex (ce-TCD) ultrasound. A change in RLS volume was defined as a difference of ā‰„20 microembolic signals (MES) or no evidence of RLS during ce-TCD ultrasound on follow-up.</p> <p>Results</p> <p>There was evidence of a marked reduction in RLS volume in 31/102 patients; in 14/31 patients a PFO was no longer detectable. An index event classified as cryptogenic stroke (P < 0.001; OD = 39.2, 95% confidence interval 6.0 to 258.2) and the time interval to the follow-up visit (P = 0.03) were independently associated with a change in RLS volume over time.</p> <p>Conclusions</p> <p>RLS volume across a PFO decreases over time, especially in patients with cryptogenic stroke. These may determine the development of new strategies for the management in the secondary stroke prevention.</p

    recA mediated spontaneous deletions of the icaADBC operon of clinical Staphylococcus epidermidis isolates: a new mechanism of phenotypic variations

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    Phenotypic variation of Staphylococcus epidermidis involving the slime related ica operon results in heterogeneity in surface characteristics of individual bacteria in axenic cultures. Five clinical S. epidermidis isolates demonstrated phenotypic variation, i.e. both black and red colonies on Congo Red agar. Black colonies displayed bi-modal electrophoretic mobility distributions at pH 2, but such phenotypic variation was absent in red colonies of the same strain as well as in control strains without phenotypic variation. All red colonies had lost ica and the ability to form biofilms, in contrast to black colonies of the same strain. Real time PCR targeting icaA indicated a reduction in gene copy number within cultures exhibiting phenotypic variation, which correlated with phenotypic variations in biofilm formation and electrophoretic mobility distribution of cells within a culture. Loss of ica was irreversible and independent of the mobile element IS256. Instead, in high frequency switching strains, spontaneous mutations in lexA were found which resulted in deregulation of recA expression, as shown by real time PCR. RecA is involved in genetic deletions and rearrangements and we postulate a model representing a new mechanism of phenotypic variation in clinical isolates of S. epidermidis. This is the first report of S. epidermidis strains irreversibly switching from biofilm-positive to biofilm-negative phenotype by spontaneous deletion of icaADBC
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