| 11. |
- Guyader, Hugo, 1990-, et al.
(författare)
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A Typology for Green Service: Resource Integration and Actors Involvement.
- 2017
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Ingår i: Proceedings of the QUIS15 International Research Symposium on Service Excellence in Management, 12-15 June 2017, University of Porto, Portugal.. ; , s. 47-56
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Konferensbidrag (refereegranskat)abstract
- This paper presents a typology for green service. It is based on two dimensions: a resource integration dimension to differentiate between different efforts aiming to reduce, reuse, redistribute, recycle or renew resources (for instance natural or operant resources); and a dimension representing whether other ecosystem actors are actively or passively involvement in the green service. The ten types of green service provide an analytical tool for service marketing managers and scholars discussing how to improve or develop green service.
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| 12. |
- Guyader, Hugo, 1990-, et al.
(författare)
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Identifying the resource integration processes of green service
- 2019
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Ingår i: Journal of Service Management. - : Emerald Group Publishing Limited. - 1757-5818 .- 1757-5826. ; 31:4
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: The purpose of this paper is to improve the understanding of green service. In particular, the focus is on identifying homopathic and heteropathic resource integration processes that preserve or increase the resourceness of the natural ecosystem. Design/methodology/approach: Through an extensive multiple case study involving ten service providers from diverse sectors based on a substantial number of interviews, detailed accounts of green service are provided. Findings: Six resource integration processes were identified: reducing, recirculating, recycling, redistributing, reframing and renewing. While four of these processes are based on homopathic resource integration, both reframing and renewing are based on heteropathic resource integration. While homopathic processes historically constitute a green service by mitigating the impact of consumption on the environment, heteropathic resource integration increases the resourceness of the natural ecosystem through emergent processes and the (re)creation of natural resources. Research limitations/implications: The present study breaks away from the paradigm that “green service” is about reducing the negative environmental impact of existing services, toward providing a green service that expands biological diversity and other natural resources. Originality/value: Transformative service research on environmental sustainability is still in its infancy. The present study contributes through conceptualizing green service, redefining existing resource integration processes (reducing, recirculating, recycling) and identifying new resource integration processes (redistributing, reframing, renewing).
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| 13. |
- Guyader, Hugo, 1990-, et al.
(författare)
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Sustainability & Marketing
- 2019
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Konferensbidrag (populärvet., debatt m.m.)abstract
- This session is based on the upcoming book “Marketing & Sustainability” (Studentlitteratur 2020) which aims to equip business students with the relevant mindset to pursue advanced marketing education or start their career as marketer with an understanding of sustainability issues — with contemporary cases and useful conceptualisations and classifications.The presentation will cover (1) classic consumer behavior concepts (e.g., consumer segmentations, the consumption process) and how to influence consumer behavior in light of infamous attitude-behavior “green gap” (e.g., nudging); (2) firms’ operations and responses to the sustainability imperative (e.g., new product/service development, the life-cycle approach, ISO standards, open innovation); (3) sustainable marketing communications (e.g., branding, certifications and labelling, communication channels) and the pitfalls of “cheating the consumers” (e.g., greenwashing issues, transparency, GDPR implications); and (4) the diverse sustainable business models and marketing channels (e.g., Product-Service Systems, circular economy paradigm, peer-to-peer platforms).
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| 14. |
- Guyader, Hugo, 1990-
(författare)
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The Heart and Wallet Paradox of Collaborative Consumption
- 2019
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Collaborative consumption is a peer-to-peer (P2P) exchange of goods and services facilitated by online platforms. This phenomenon is driven by technologies that make it easier and cheaper to redistribute and share the use of existing but underutilized private resources. It is embedded in the paradigm shift in society towards access-based consumption, in opposition to acquisition and private individual ownership. Firms take on the new role of enabler of collaborative consumption by developing online platforms and smartphone apps that facilitate P2P exchanges between people in their roles of peer providers and consumers.Collaborative consumption is anchored to two opposite logics of consumption: sharing and market exchange. This results in the Heart & Wallet paradox with its tensions between a pro-social orientation and communal norms on the one hand, and a for-profit orientation and market norms on the other hand. While diverse societal and regulatory aspects of the so-called “sharing economy” are discussed in popular debate, scholars have yet to catch up on the theoretical implications from these influences on business activities and consumer behavior.This thesis aims to improve the understanding of collaborative consumption by contributing to the conceptualization of this new phenomenon as intertwined with coexisting sharing and market logics. The research is based on two papers taking the perspective of the firms operating online platforms that facilitate collaborative consumption, and two papers taking the perspective of the peer providers and consumers participating in P2P exchanges. The context of shared mobility (i.e. P2P car rental, ridesharing) is explored through three cases, using interviews with online platform managers and participants in collaborative consumption, participant observation, a netnography, a cross-sectional survey of platform users, and document analyses.This thesis situates collaborative consumption in the access paradigm, based on the temporal redistribution and monetization of private resources facilitated via online platforms, while nurturing the feelings of communal belonging and the sharing ethos embedded in P2P exchanges. Investigating the tensions of the Heart & Wallet paradox of collaborative consumption, I highlight the opposing rationales between the sharing logic of the original nonmonetary practices initiated by grassroots communities and the market logic of platform business models. I further emphasize the key function of communal identification for participants and the role of perceived sharing authenticity—the pitfalls of sharewashing for firms. This thesis contributes to service research by advancing the understanding of P2P exchanges and the conceptualization of collaborative consumption.
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| 15. |
- Guyader, Hugo, 1990-, et al.
(författare)
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You can't buy what you can't see: Retailer practices to increase the green premium
- 2017
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Ingår i: Journal of Retailing and Consumer Services. - : Elsevier. - 0969-6989 .- 1873-1384. ; 34, s. 319-325
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Tidskriftsartikel (refereegranskat)abstract
- Retailers are the gatekeepers between consumers and eco-friendly products. As such, they can influence green shopping behavior. The results of an eye-tracking experiment show that retailers can attract consumers’ visual attention and increase the green premium through various practices such as providing relevant information, orienting consumers inside the store, and offering an eco-friendly product assortment. Managerial implications are to use green-colored price tags to signal eco-friendly products, while avoiding greenwashing practices that can distract consumers from finding the eco-friendly products they look for.
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| 16. |
- Hedberg, Suzanne, et al.
(författare)
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BEST: Bypass equipoise sleeve trial; rationale and design of a randomized, registry-based, multicenter trial comparing Roux-en-Y gastric bypass with sleeve gastrectomy
- 2019
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Ingår i: Contemporary Clinical Trials. - : Elsevier BV. - 1551-7144 .- 1559-2030. ; 84
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Tidskriftsartikel (refereegranskat)abstract
- Background: Laparoscopic gastric bypass (LGBP) is a well-documented surgical intervention for severe obesity. Recently, laparoscopic sleeve gastrectomy (LSG) has gained increased popularity. Short-term follow-up in limited-sized randomized trials comparing LGBP and LSG show no major differences in weight-loss, adverse events, or effect on comorbidities; however, there is a lack of sufficiently powered, pragmatic, randomized controlled trials comparing the mid- and long-term results of the two methods. Method: BEST is a randomized, registry-based, multicenter trial comparing LGBP and LSG. The trial has two primary outcomes; rates of substantial complications (SC) and total body weight loss. We hypothesize that patients treated with LSG will experience 35% fewer substantial complications during the 5-year follow-up compared to patients treated with LGBP, and that the efficacy of LSG will remain within a non-inferiority margin of 5% in terms of weight loss. Our sample size calculation, using data from the Scandinavian Obesity Surgery Registry (SOReg), shows a power of 80% for SC and > 95% for weight loss at p < .025 with a total of 2100 included patients. The design of the trial will also enable comparisons within several relevant patient subgroups. Conclusions: As a large-sized, pragmatic, randomized trial, BEST will provide robust data comparing LGBP with LSG by generating long-term results on weight loss and SC's, as well as secondary outcomes and comparisons within patient subgroups. The use of a well-established registry for registration of all data facilitates a large multicenter trial, and combines the strengths of registry studies with those of a randomized trial. Clinical Trials registry: NCT 02767505. © 2019 Elsevier Inc.
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| 17. |
- Hedin, Allan, et al.
(författare)
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Corrosion of copper in pure O2-free water?
- 2018
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Ingår i: Corrosion Science. - : Elsevier BV. - 0010-938X .- 1879-0496. ; 137, s. 1-12
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Tidskriftsartikel (refereegranskat)abstract
- Copper exposed to pure, O-2-free water for several months in glass- and metal-contained, well-controlled systems shows no evidence of corrosion, either through hydrogen evolution or through the occurrence of oxidized copper. The results contradict the interpretation of recent experiments where it has been claimed that copper corrodes in pure, O-2-free water far above the very limited extent predicted by established thermodynamic data. Reasons for the different experimental outcomes are discussed. Experimental and theoretical efforts to identify hitherto unknown, potentially corrosion driving species of the Cu-O-H system and studies of copper/water surface reactions are reviewed as background for the present study.
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| 18. |
- Holmér, Gunnel, 1955-
(författare)
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Flaskor på löpande band : Arbete och arbetskraftsrekrytering vid Surte glasbruk 1943-1978
- 2017
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This dissertation considers how the transition from craft manufacture to mechanized glass production affected the organization of work and the consequences for the recruitment of labour. Based on gender and ethnicity, the dissertation studies the composition of the workforce, the significance of qualifications, and differences in career paths and length of stay have been investigated at Surte glassworks 1943–1978. Charles Tilly’s theory of durable inequality is applied to analyse whether primarily gender and ethnicity had any effect on the assignment of tasks and on discrimination. In conclusion, the results from Surte are compared with conditions at Kosta glassworks. Whereas Surte’s specialty was machine-made bottles, Kosta was geared to craft production of utility glass and art glass.After mechanization at Surte, machine-tenders were counted among the most qualified category, instead of the glass-blowers who had previously been in demand. Manufacture at a pace regulated by machines led to more routine chores such as inspection and packaging. At Kosta, with its focus on craft, glass-blowers still had the highest positions and had learned glass-blowing in the traditional way through practical exercise. At neither Surte nor Kosta did women have any opportunity to receive comparable training.After the Second World War there was a growing need for labour at both Surte and Kosta, and to keep production going the main alternative was foreign labour. The peak was reached in the 1960s, and of roughly 660 collectively employed workers at Surte in November 1964, almost 40% were immigrants, chiefly from Finland. Kosta at the same time, with just under 330 employees, had slightly under 10% foreign workers, mainly from Greece. Kosta attracted a number of skilled glass-workers from abroad, but the majority of immigrants there, and all those at Surte, lacked experience of glass manufactureAt neither Surte nor Kosta, with their different production methods, is there any evidence of durable inequality based on ethnicity. The assignment of tasks was guided rather by the functions in demand at the companies and by the applicants’ qualifications. Internal training and career opportunities were open to all male workers, regardless of which country they came from. On the other hand, the gender division of labour at both glassworks created durable inequality for all women regardless of nationality.
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| 19. |
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IVIM reveals increased blood perfusion of liver metastases after oral intake of Salovum®
- 2015
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Ingår i: Magnetic Resonance Materials in Physics, Biology and Medicine. - : Springer Science and Business Media LLC. - 0968-5243 .- 1352-8661.
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Proceedings (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- Introduction Elevated interstitial fluid pressure (IFP) of tumours impairs perfusion, which hinders anti-cancer drugs and oxygen to reach tumour cells1-3. AF-16, a 16 amino acid long sequence from the amino terminal end of the endogenous protein Antisecretory Factor (AF), supresses IFP in animal models of solid tumours4, and could improve drug delivery to tumour cells. Salovum®, a spray-dried egg yolk powder with high content of antisecretory peptides, should be tested on humans, but requires non-invasive tumour IFP/perfusion assessment methods. The IntraVoxel Incoherent Motion (IVIM) model applied to multi-b DWI enables measurement of tissue diffusion (D), pseudo-diffusion (D*) and voxel volume fraction of actively perfused capillaries (f) 5. The aim of this study was to investigate if f could be used to monitor changes induced by Salovum® in colorectal liver metastases in vivo Subjects and Methods Previously untreated patients (n=6) with colorectal liver metastases were imaged before, and 24h after intake of Salovum®, using IVIM-MRI (3T Philips, 16‐channel receiver; Single-shot, SE‐EPI (breath-hold); FOV covering liver, 3x3x5mm3 voxels; TR/TE/NSA/SENSE=1900ms/50ms/2/2; 11 b‐values (0-600); acquisition~10 min. MATLAB-based images processing comprised 1) Inter-scan image registration (volume preserving free-form deformation6); 2) Voxelwise fitting of D and A [eq.2] to S(b200-600) (for b>200, [eq.1] reduces to [eq.2], assuming D<2cm) on DWI (b=600), transfer of ROIs to corresponding f-maps for calculation of median ROI f before and after Salovum® intake and 4) Mann-Whitney U-test for statistical significance (α-level=0.05). Results Liver and metastases were well visualised on DWIs and f-maps Median f in metastatic tissue increased after intake of Salovum® in 5/6 patients, but decreased in one patient (Fig.2) (p<0.0001). Discussion/Conclusion The increased perfusion fraction on day 2 may offer a “window of opportunity” for improved transport of drugs to tumour cells. The increase in f was small, and perhaps not clinically significant, suggesting that additional time points after Salovum® intake and dose escalation be investigated, as well as intra-tumour effect heterogeneity. The proposed IVIM approach is a promising, non-invasive method for studying Salovum® induced changes in liver metastases in vivo. Further optimisation and fractionation studies should be conducted, and IVIM derived parameters should be compared to other techniques for perfusion or IFP measurements. References 1Rofstad,E.K.,et al.,Neoplasia. 2009;11(11):1243-51. 2Milosevic,M.F.,et al.,1999;43(5):1111-23. 3Wiig, H.,et al.,1982;42(2):159-64. 4Al-Olama, M.et al., 2011;50(7):1098-104. 5Le Bihan, D., et al., 1988;168(2):497-505. 6Rueckert, D., et al., 1999;18(8):712-21.
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| 20. |
- Jacobsson, T. Jesper, et al.
(författare)
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Determination of Thermal Expansion Coefficients and Locating the Temperature-Induced Phase Transition in Methylammonium Lead Perovskites Using X-ray Diffraction
- 2015
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Ingår i: Inorganic Chemistry. - : American Chemical Society (ACS). - 0020-1669 .- 1520-510X. ; 54:22, s. 10678-10685
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Tidskriftsartikel (refereegranskat)abstract
- Lead halogen perovskites, and particularly methylammonium lead iodine, CH3NH3PbI3, have recently attracted considerable interest as alternative solar cell materials, and record solar cell efficiencies have now surpassed 20%. Concerns have, however, been raised about the thermal stability of methylammonium lead iodine, and a phase transformation from a tetragonal to a cubic phase has been reported at elevated temperature. Here, this phase transition has been investigated in detail using temperature-dependent X-ray diffraction measurements. The phase transformation is pinpointed to 54 degrees C, which is well within the normal operating range of a typical solar cell. The cell parameters were extracted as a function of the temperature, from which the thermal expansion coefficient was calculated. The latter was found to be rather high (alpha(v) = 1.57 X 10(-4) K-1) for both the tetragonal and cubic phases. This is 6 times higher than the thermal expansion coefficient for soda lime glass and CIGS and 11 times larger than that of CdTe. This could potentially be of importance for the mechanical stability of perovskite solar cells in the temperature cycling experienced under normal day night operation. The experimental knowledge of the thermal expansion coefficients and precise determination of the cell parameters can potentially also be valuable while conducting density functional theory simulations on these systems in order to deliver more accurate band structure calculations.
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