| 1. |
- Bousse, Yannick, et al.
(författare)
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Policy recommendations : how we can drive eu mobility to 2040
- 2021
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- This document contains recommendations on European regulatoryapproaches to devise new regulatory schemes, frameworks, andgovernance models. It aims to set key priorities towards adaptivenew regulation frameworks for future mobility to 2040 forpassenger and freight transport.
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| 2. |
- Chattopadhyay, Tanmoy, et al.
(författare)
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Hard X-Ray Polarization Catalog for a Five-year Sample of Gamma-Ray Bursts Using AstroSat CZT Imager
- 2022
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Ingår i: Astrophysical Journal. - : IOP Publishing Ltd. - 0004-637X .- 1538-4357. ; 936:1
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Tidskriftsartikel (refereegranskat)abstract
- The Cadmium Zinc Telluride Imager (CZTI) on board AstroSat has been regularly detecting gamma-ray bursts (GRBs) since its launch in 2015. Its sensitivity to polarization measurements at energies above 100 keV allows CZTI to attempt spectropolarimetric studies of GRBs. Here, we present the first catalog of GRB polarization measurements made by CZTI during its first five years of operation. This includes the time-integrated polarization measurements of the prompt emission of 20 GRBs in the energy range 100-600 keV. The sample includes the bright GRBs that were detected within an angle range of 0 degrees-60 degrees and 120 degrees-180 degrees where the instrument has useful polarization sensitivity and is less prone to systematics. We implement a few new modifications in the analysis to enhance the polarimetric sensitivity of the instrument. The majority of the GRBs in the sample are found to possess less/null polarization across the total bursts' duration in contrast to a small fraction of five GRBs that exhibit high polarization. The low polarization across the bursts might be due either to the burst being intrinsically weakly polarized or to a varying polarization angle within the burst even when it is highly polarized. In comparison to POLAR measurements, CZTI has detected a larger number of cases with high polarization. This may be a consequence of the higher energy window of CZTI observations, which results in the sampling of a shorter duration of burst emissions than POLAR, thereby probing emissions with less temporal variation in polarization properties.
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| 3. |
- Ho, Anna Y. Q., et al.
(författare)
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Cosmological Fast Optical Transients with the Zwicky Transient Facility : A Search for Dirty Fireballs
- 2022
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Ingår i: Astrophysical Journal. - : American Astronomical Society. - 0004-637X .- 1538-4357. ; 938:1
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Tidskriftsartikel (refereegranskat)abstract
- Dirty fireballs are a hypothesized class of relativistic massive-star explosions with an initial Lorentz factor Γinit below the Γinit ∼ 100 required to produce a long-duration gamma-ray burst (LGRB), but which could still produce optical emission resembling LGRB afterglows. Here we present the results of a search for on-axis optical afterglows using the Zwicky Transient Facility (ZTF). Our search yielded seven optical transients that resemble on-axis LGRB afterglows in terms of their red colors (g − r > 0 mag), faint host galaxies (r > 23 mag), rapid fading (dr/dt > 1 mag day−1), and in some cases X-ray and radio emission. Spectroscopy of the transient emission within a few days of discovery established cosmological distances (redshift z = 0.876 to 2.9) for six of the seven events, tripling the number of afterglows with redshift measurements discovered by optical surveys without a γ-ray trigger. A likely associated LGRB (GRB 200524A, GRB 210204A, GRB 210212B, and GRB 210610B) was identified for four events (ZTF 20abbiixp/AT 2020kym, ZTF 21aagwbjr/AT 2021buv, ZTF 21aakruew/AT 2021cwd, and ZTF 21abfmpwn/AT 2021qbd) post facto, while three (ZTF 20aajnksq/AT 2020blt, ZTF 21aaeyldq/AT 2021any, and ZTF 21aayokph/AT 2021lfa) had no detected LGRB counterpart. The simplest explanation for the three "orphan" events is that they were regular LGRBs missed by high-energy satellites owing to detector sensitivity and duty cycle, although it is possible that they were intrinsically subluminous in γ-rays or viewed slightly off-axis. We rule out a scenario in which dirty fireballs have a similar energy per solid angle to LGRBs and are an order of magnitude more common. In addition, we set the first direct constraint on the ratio of the opening angles of the material producing γ-rays and the material producing early optical afterglow emission, finding that they must be comparable.
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| 4. |
- Kulkov, Ignat, et al.
(författare)
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Identifying institutional barriers when implementing new technologies in the healthcare industry
- 2021
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Ingår i: European Journal of Innovation Management. - : EMERALD GROUP PUBLISHING LTD. - 1460-1060 .- 1758-7115.
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Tidskriftsartikel (refereegranskat)abstract
- Purpose Virtual and augmented reality solutions in medicine are generally applied in communication, training, simulation and therapy. However, like most new digital developments, these technologies face a large number of institutional barriers that are inherent to the medical sector. Design/methodology/approach Following Richard Scott's view on institutions and organizations, a multiple case study is used to analyze regulatory, normative and cultural-cognitive institutional pillars in the medical industry. Findings The results of the study demonstrate that (1) the regulatory pillar inhibits the advancement of new technologies in the approach to treatment, regulation of patient data, educational processes for medical staff, and information and financial flows; (2) the number of barriers increases based on the solution's level of disruption and the number of variable conventional procedures; (3) trust between participants in the medical industry plays an important role in introducing new technologies; (4) new participants need to address certain pillars depending on the area of application. Originality/value The authors discuss top-down and bottom-up approaches for overcoming institutional barriers when implementing augmented and virtual reality solutions for companies focusing on the medical market.
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| 5. |
- Kulkov, Ignat, et al.
(författare)
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Innovations in veterinary markets : opinion leaders' social capital
- 2021
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Ingår i: Journal of business & industrial marketing. - : EMERALD GROUP PUBLISHING LTD. - 0885-8624 .- 2052-1189. ; 36:13, s. 1-14
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Tidskriftsartikel (refereegranskat)abstract
- Purpose This study aims to identify how the personal social capital of opinion leaders contributes to the market adoption of start-up innovations. Design/methodology/approach A design-oriented case study is undertaken with a start-up company focusing on the development and commercialization of innovations in the veterinary market. Based on a literature review, the authors examine the social capital in value creation and the role of opinion leaders and use qualitative methodology and semi-structured in-depth interviews to collect data. Findings The adoption of innovations could start with opinion leaders that will later share their experience with other members of the professional community. In turn, social capital allows for creating a collaboration between start-ups and leaders based on a number of specific parameters. Originality/value This paper contributes to marketing literature by providing new insights regarding collaboration between start-ups and opinion leaders. The collaboration between opinion leaders and start-ups could be implemented not only in the veterinary industry but also in other industries with minor adaptations. Authors demonstrate how the social capital of external stakeholders may be used as a resource of the company for business development. The main contribution of this study is to demonstrate that social capital could be used as a parameter for the adoption of innovations. The key parameters that allow creating cooperation between start-up and opinion leader have been identified.
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| 6. |
- Kulkov, Ignat, et al.
(författare)
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Sustainable Cruise Tourism : Systematic Literature Review and Future Research Areas
- 2023
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Ingår i: Sustainability. - : MDPI. - 2071-1050. ; 15:10
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Forskningsöversikt (refereegranskat)abstract
- The cruise shipping industry has existed for centuries. However, sustainability is a relatively new trend that could make a big difference and someday impact the industry. A growing body of research on sustainable cruise tourism includes studying changes among industry stakeholders, internal and external processes, and more. However, until now, there have been no comprehensive and systematic reviews of the academic literature on this topic and proposals for future research areas. The sample for our research consists of 56 articles structured into the following themes and subthemes: (1) corporate social responsibility (public interaction and emissions management); (2) territory management (collaboration with stakeholders and infrastructure development); (3) training in sustainable behavior (passengers, ship personnel, and other stakeholders). These themes fully explore the various use cases for sustainable cruises, forming a conceptual framework for understanding trends for the industry's sustainable development. We direct the attention of other researchers to the following areas for further research: GHG emissions of cruising; biodiversity impacts; quantitative understanding of the target audience and their participation in sustainability financing; in-depth understanding of the reasons for cooperation between stakeholders; identifying the true motivation for participation in sustainable development; the long-term trends; and how the shipping industry is adapting to the effects of the COVID-19 pandemic.
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| 7. |
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| 8. |
- Tsvetkova, Anastasia, et al.
(författare)
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Workflow Interdependence Analysis of Projects in Business Ecosystems
- 2019
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Ingår i: Engineering Project Organization Journal. - : Engineering Project Organization Society (EPOS). - 2157-3735. ; 8:1
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Tidskriftsartikel (refereegranskat)abstract
- This article contributes to engineering project research by studying how projects relate to their surrounding context. The article presents a framework for the analysis of workflow interdependencies in a project that is situated in a business ecosystem. The analysis is used to reduce costly conflicts in the business ecosystem, and the framework shows how the project is positively impacted by the resolution of those conflicts. The framework elaborates James Thompson’s notion of pooled, sequential and reciprocal interdependence and distinguishes between compatible-reciprocal and contentious-reciprocal interdependencies. The relationship between interdependence types and their corresponding coordination and governance mechanisms, originally posited for interdependence between tasks and groups within a single organization, applies equally well to interdependence types and governance mechanisms across firm boundaries within a business ecosystem. We analyze a cargo vessel development project within the short sea logistics business ecosystem to illustrate how the proposed framework can remove unproductive workflow conflicts and enhance value creation.
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