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| 2. |
- Berg, Hanna, et al.
(författare)
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Online product size perceptions : Examining liquid volume size perceptions based on online product pictures
- 2021
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Ingår i: Journal of Business Research. - : Elsevier BV. - 0148-2963 .- 1873-7978. ; 122, s. 192-203
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Tidskriftsartikel (refereegranskat)abstract
- This study examines consumers' liquid volume size perceptions based on standardized product pictures in online stores. Four empirical studies compare liquid volume size perceptions for the same products when displayed online and offline. The findings indicate that size perceptions require more effort online than they do offline and that the online display decreases the accuracy of the size perceptions. Online size perceptions require more effort in terms of time and visual attention, as consumers need to study product labels to determine product sizes. The study also introduces a new visual bias to consumer research: the familiar size bias. A consideration of this bias reveals that consumer size perceptions are less accurate online, where consumers tend to overestimate the sizes of small products and underestimate the sizes of large products.
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| 3. |
- Falklöf, Olle, 1986-, et al.
(författare)
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Computational Identification of Pyrrole Ring C as the Preferred Donor for Excited-State Proton Transfer in Bacteriophytochromes
- 2018
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Ingår i: ChemPhotoChem. - Weinheim, Germany : Wiley-VCH Verlagsgesellschaft. - 2367-0932. ; 2:6, s. 453-457
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Tidskriftsartikel (refereegranskat)abstract
- The engineering of bacteriophytochrome photoreceptors into near-infrared fluorescent proteins is a promising route toward deep-tissue imaging of living cells with many challenges ahead. One key objective is to increase the fluorescence quantum yields, which are limited by competing non-radiative relaxation processes involving not only the well-known double-bond photoisomerization of the tetrapyrrole chromophore, but also a potential excited-state proton transfer from the chromophore to the protein. Motivated by the lack of mechanistic knowledge about this proton transfer, we here use hybrid quantum mechanics/molecular mechanics methods to investigate three possible scenarios for how the process is initiated. Through calculated excited-state pKa values of the chromophore inside the protein matrix of Deinococcus radiodurans bacteriophytochrome, it is found that pyrrole ring C is a much more likely donor for excited-state proton transfer than rings A and B, which are also possible donors discussed in the literature. This finding offers a starting point for establishing a strategy to strengthen the fluorescence of engineered bacteriophytochromes through biochemical inhibition of the proton transfer.
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| 4. |
- Garsten, Christina, et al.
(författare)
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Small places, big stakes : "Meetings’" as moments of ethnographic momentum
- 2015
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- The Davos summit is surrounded by air of seriousness and hype, but it is also something like a huge cocktail party. The Davos meeting is, in essence, a kind of human beehive, attracting and organizing a multitude of actors around its core, each contributing to the existence of the beehive community, and each disseminating its ideas and perspectives to the world at large. The WEF is essentially a social world of meetings – staged, circumvented, formal, organized meetings – and meetings to which access is tightly restricted. The annual Davos meeting, which is the showcase meeting of the WEF, is also a microcosm of the organization, set up in a small place and speaking to bigger issues: market regulations, financial crises, environmental risks, armed conflicts, and the like. The kinds of questions that arise out offieldwork in organizations such as this, but also more broadly, are to do with access, representation, validity, and the predicaments of doing ethnography in organized settings.At a more general level, ethnographic fieldwork in organizations – such as corporations, state agencies, and international organizations – often entails that the ethnographer has to rely on meetings as the primary point of access. Oftentimes, this involves doing fieldwork in workshops, at ceremonies, and at other staged, formal events. In addition, such fieldwork tends to be multilocal, mobile, and discontinuous. It may not provide as much of a flavour of the different local sites and a sense of ‘being there’ as one would wish for. The tendency in anthropology to favour the informal, the ‘genuine’ or ‘authentic’ as well as the spontaneous, may leave one with a lingering feeling of having to make do with second- rate material, i.e. the formal, the superficial, and the organized. Fieldwork in meetings, and in meetings to which one may not get full access, may, from that angle, be problematic.What, if anything, can we learn from doing ethnography in such a small, temporary meeting place, where we don not even have access to much of what goes on?
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| 5. |
- Hajihoseini, H., et al.
(författare)
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Target ion and neutral spread in high power impulse magnetron sputtering
- 2023
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Ingår i: Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films. - : American Vacuum Society. - 0734-2101 .- 1520-8559. ; 41:1
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Tidskriftsartikel (refereegranskat)abstract
- In magnetron sputtering, only a fraction of the sputtered target material leaving the ionization region is directed toward the substrate. This fraction may be different for ions and neutrals of the target material as the neutrals and ions can exhibit a different spread as they travel from the target surface toward the substrate. This difference can be significant in high power impulse magnetron sputtering (HiPIMS) where a substantial fraction of the sputtered material is known to be ionized. Geometrical factors or transport parameters that account for the loss of produced film-forming species to the chamber walls are needed for experimental characterization and modeling of the magnetron sputtering discharge. Here, we experimentally determine transport parameters for ions and neutral atoms in a HiPIMS discharge with a titanium target for various magnet configurations. Transport parameters are determined to a typical substrate, with the same diameter (100 mm) as the cathode target, and located at a distance 70 mm from the target surface. As the magnet configuration and/or the discharge current are changed, the transport parameter for neutral atoms xi(tn) remains roughly the same, while transport parameters for ions xi(ti) vary greatly. Furthermore, the relative ion-to-neutral transport factors, xi(ti)/xi(tn), that describe the relative deposited fractions of target material ions and neutrals onto the substrate, are determined to be in the range from 0.4 to 1.1.
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| 6. |
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| 7. |
- Lundberg, Anna, et al.
(författare)
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Rätten till familj
- 2010
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Ingår i: Mänskliga rättigheter. - : Liber. - 9789147090747 ; , s. 321-335
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 8. |
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| 9. |
- Vo, Nguyen-Son, et al.
(författare)
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User-perceived-quality aware replication strategy for video streaming over wireless mesh networks
- 2011
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Konferensbidrag (refereegranskat)abstract
- In this paper, we consider the replication strategy for the applications of video streaming in wireless mesh networks (WMNs). In particular, we propose a closed-form of optimal replication densities for a set of frames of a video streaming based on exploiting not only the skewed access probability of each frame but also the skewed loss probability and skewed encoding rate-distortion information. The simulation results demonstrate that our method improves the replication performance in terms of user-perceived quality (UPQ) including: 1) minimum average maximum reconstructed distortion for high peak signal-to-noise ratio (PSNR), 2) small reconstructed distortion fluctuation among frames for smooth playback, and 3) reasonable average maximum transmission distance for continuous playback. Furthermore, the proposed strategy consumes small storage capacity requirement for saving the resource of network compared to other existing optimal replication strategies.
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| 10. |
- Abenius, Sara
(författare)
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Green IT & Green Software - Time and Energy Savings Using Existing Tools
- 2009
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Ingår i: Environmental Informatics and Industrial Environmental Protection: Concepts, Methods and Tools (Part 1). - : Shaker Verlag. - 9783832283971 ; , s. 57-66
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Konferensbidrag (refereegranskat)abstract
- Green IT is steadily gaining ground among companies and organizations worldwide but the understanding of its actual significance is often indistinct. The purpose of this paper is to investigate Green Software and to summarize different points of view on Green IT and clarify some actions to be taken towards using computers more wisely. Special attention will be paid to Green Software and exploring what factors could make software being used and developed with the environmental impact in mind. A descriptive research method based on available literature has been used. Finally a test was set up to control if the amount of data sent over the Internet could be lowered during navigation by changing a server setting. The intention was to prove that Green Software can be simple use of tools we have at hand, just adding a small amount of knowledge. The result showed that there are savings to gain with no effect on overall performance. To conclude, a holistic approach towards Green IT and all it’s including parts is necessary, together with appropriate ways of measuring progress towards improvement.
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