| 1. |
- Chekalina, Tatiana, 1979-, et al.
(författare)
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A value co-creation perspective on customer-based brand equity model for tourism destinations : A Case from Sweden
- 2014
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Ingår i: Finnish Journal of Tourism Research (Matkailututkimus). - 1796-1300. ; 10:1, s. 8-24
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Tidskriftsartikel (refereegranskat)abstract
- This study aims at contributing to the development of the customer-based brand equity (CBBE) concept in a tourism destination setting by taking into account the value-co-creation approach. The components of the proposed model consist of the customers’ evaluation of the destination promise in terms of transforming tangible, intangible and social destination resources into tourists’ value-in-use. Moreover, destination brand awareness affects the evaluation of the destination promise, which, in turn, determines tourists’ behavioural intentions towards the destination. By implementing a web survey and using a linear structural equation modelling approach, the proposed model is empirically validated for the Swedish mountain destination of Åre. Results particularly show the significant contribution of customer benefits and value for money to create destination loyalty. The paper demonstrates that by monitoring unique destination and tourist-specific experience dimensions, destination management can control both the value-in-use for a customer and customer loyalty, thereby upgrade and evaluate its marketing strategy, and, finally, discover promising innovation potentials for highly experiential tourism products.
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| 2. |
- Suorsa, Marjaana, et al.
(författare)
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Light acclimation involves dynamic re-organization of the pigment-protein megacomplexes in non-appressed thylakoid domains
- 2015
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Ingår i: The Plant Journal. - : Wiley. - 0960-7412 .- 1365-313X. ; 84:2, s. 360-373
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Tidskriftsartikel (refereegranskat)abstract
- Thylakoid energy metabolism is crucial for plant growth, development and acclimation. Non-appressed thylakoids harbor several high molecular mass pigment-protein megacomplexes that have flexible compositions depending upon the environmental cues. This composition is important for dynamic energy balancing in photosystems (PS) I and II. We analysed the megacomplexes of Arabidopsis wild type (WT) plants and of several thylakoid regulatory mutants. The stn7 mutant, which is defective in phosphorylation of the light-harvesting complex (LHC) II, possessed a megacomplex composition that was strikingly different from that of the WT. Of the nine megacomplexes in total for the non-appressed thylakoids, the largest megacomplex in particular was less abundant in the stn7 mutant under standard growth conditions. This megacomplex contains both PSI and PSII and was recently shown to allow energy spillover between PSII and PSI (Nat. Commun., 6, 2015, 6675). The dynamics of the megacomplex composition was addressed by exposing plants to different light conditions prior to thylakoid isolation. The megacomplex pattern in the WT was highly dynamic. Under darkness or far red light it showed low levels of LHCII phosphorylation and resembled the stn7 pattern; under low light, which triggers LHCII phosphorylation, it resembled that of the tap38/pph1 phosphatase mutant. In contrast, solubilization of the entire thylakoid network with dodecyl maltoside, which efficiently solubilizes pigment-protein complexes from all thylakoid compartments, revealed that the pigment-protein composition remained stable despite the changing light conditions or mutations that affected LHCII (de)phosphorylation. We conclude that the composition of pigment-protein megacomplexes specifically in non-appressed thylakoids undergoes redox-dependent changes, thus facilitating maintenance of the excitation balance between the two photosystems upon changes in light conditions. Significance Statement Thylakoid energy metabolism is crucial for plant growth, development and acclimation. Here we compare the pigment-protein megacomplexes in non-appressed thylakoids of wild type and several thylakoid regulatory mutants, and show that composition megacomplex composition is dynamically regulated according to light conditions.
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| 3. |
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| 4. |
- Lankhaar, Boy, 1991, et al.
(författare)
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Collisional polarization of molecular ions: a signpost of ambipolar diffusion
- 2020
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Ingår i: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 638
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Tidskriftsartikel (refereegranskat)abstract
- Magnetic fields play a role in the dynamics of many astrophysical processes, but they are hard to detect. In a partially ionized plasma, a magnetic field works directly on the ionized medium but not on the neutral medium, which gives rise to a velocity drift between them: ambipolar diffusion. This process is suggested to be important in the process of star formation, but has never been directly observed. We introduce a method that could be used to detect ambipolar diffusion and the magnetic field that gives rise to it, where we exploit the velocity drift between the charged and neutral medium. By using a representative classical model of the collision dynamics, we show that molecular ions partially align themselves when a velocity drift is present between the molecular ion and its main collision partner H2. We demonstrate that ambipolar diffusion potently aligns molecular ions in regions denser than their critical density. We include a model for HCO+ and show that collisional polarization could be detectable for the ambipolar drifts predicted by numerical simulations of the inner protostellar disk regions. The polarization vectors are aligned perpendicular to the magnetic field direction projected on the plane of the sky.
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| 5. |
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| 6. |
- Chiswick, Barry R., et al.
(författare)
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The "Negative" Assimilation of Immigrants : A Special Case
- 2010
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Research on the economic or labor market assimilation of immigrants has to date focused on the degree of improvement in their economic status with duration in the destination. The theoretical underpinning for this finding is the international transferability of skills. This paper addresses whether positive assimilation will be found if skills are very highly transferable internationally. It outlines the conditions for “negative” assimilation in the context of the traditional immigration assimilation model, and examines the empirical relevance of the hypothesis using data on immigrants from the English-speaking developed countries (i.e., the UK, Ireland, Canada and Australia/New Zealand) to the United States. Comparisons with the native born are also presented to test whether the findings are sensitive to immigrant cohort quality effects. Even after controlling for cohort effects, “negative” assimilation (a decline in earnings with duration) is found for immigrants in the US from the English-speaking developed countries. Negative assimilation is also found for immigrants from the English-speaking developed countries in Australia and from Nordic countries in Sweden.
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| 7. |
- Haapaniemi, T, et al.
(författare)
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Untitled - Response
- 2003
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Ingår i: Journal of the Peripheral Nervous System. - : Wiley. - 1085-9489. ; 8:2, s. 63-64
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 8. |
- Magyari-Kope, B., et al.
(författare)
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Low-temperature crystal structure of CaSiO3 perovskite : An ab initio total energy study
- 2002
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Ingår i: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 65:19
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Tidskriftsartikel (refereegranskat)abstract
- The stability of cubic CaSiO3 perovskite with respect to octahedral rotations is investigated by ab initio total-energy calculations. The proposed theoretical ground-state crystal structure has the orthorhombic Pbnm symmetry. Pressure gradually reduces the average tilting of the SiO6 octahedra relative to the cubic axis, from 7degrees at zero pressure to 4degrees at about 150 GPa. The energy difference between the orthorhombic and cubic phases at 0 GPa is 63 meV per f.u. and shows weak pressure dependence. A possible stabilization of the cubic phase at finite temperatures by entropy effects is discussed.
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| 9. |
- Morrell, Jane, et al.
(författare)
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Practical implications of sperm selection techniques for improving reproduction
- 2017
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Ingår i: Animal Reproduction. - 1806-9614 .- 1984-3143. ; 14, s. 572-580
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Tidskriftsartikel (refereegranskat)abstract
- Sperm selection techniques are needed to separate spermatozoa from seminal plasma and extender for in vitro fertilization (IVF) and to improve sperm quality for a range of assisted reproduction techniques. Apart from sperm washing, which removes some but not all of the seminal plasma, the selection techniques that are currently used are mainly swim-up and colloid centrifugation; filtration through Sephadex columns or glass wool is seldom used in the field. Although swim-up can be used to prepare sperm samples for IVF, the low recovery rate and lack of selection for sperm quality other than motility make this technique ineffective for routine use. Colloid centrifugation is used to prepare semen for all types of assisted reproduction. The method has been scaled-up for voluminous ejaculates e.g. from stallion and boar, and scaled-down to accommodate small volumes of thawed semen (e.g. from bull). Sperm quality and fertility are improved, as shown in laboratory assays and in various fertility trials. Some normal spermatozoa are lost during the selection process but overall the advantages of improved longevity and fertility in the selected spermatozoa outweigh the disadvantages. Since spermatozoa are separated from bacteria in the ejaculate, it may be possible to reduce antibiotic usage in semen extenders. New applications of colloid centrifugation include extracting camelid spermatozoa from viscous seminal plasma, selecting spermatozoa with condensed chromatin (i.e. with fewer free thiols), and using the number of spermatozoa passing through the colloid as a diagnostic tool to indicate male fertility.
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| 10. |
- Papaioannou, Konstantinos Georgios, 1983-, et al.
(författare)
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Healthy Diets Rich in Vegetables and Systemic Inflammation in Older Adults
- 2022
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Ingår i: Biology and Life Sciences Forum. - : MDPI. - 2673-9976. ; 12:1
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Tidskriftsartikel (refereegranskat)abstract
- The aim of the present study was to explore links between dietary habits and biomarkers of systemic inflammation in older adults. In a sample of 233 community-dwelling older adults (65–70 years), dietary habits were assessed by a food-frequency questionnaire. Physical activity and sedentary time were assessed using accelerometry. Inflammatory biomarkers were assessed from blood samples. The results showed that intake of vegetables was inversely related to levels of systemic inflammation (p < 0.05), independently of physical activity level. The present study strengthens public health efforts to promote vegetable-rich diets in older adults to mitigate age-related systemic inflammation.
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