| 1. |
- Hidalgo, Jazmin, et al.
(author)
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The influence of two different cements on remaining cement excess in cement-retained implant-supported zirconia crowns : An in vitro study
- 2021
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In: BDJ Open. - : Nature Publishing Group. - 2056-807X. ; 7:1
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Journal article (peer-reviewed)abstract
- AIM: To compare the amount of remaining cement excess after cementation of implant-supported zirconia crowns with zinc phosphate or calcium aluminate glass ionomer cement.MATERIALS AND METHODS: Twenty zirconia crowns were cemented on dental implant abutments using a calcium aluminate glass ionomer cement (n = 10) and zinc phosphate cement (n = 10). After removal of cement excess, remaining cement excess were measured with pixel area calculation method and by weighing. Differences in amount of remaining cement excess were analyzed using Independent Samples t-Test. Level of significance was set at p = 0.05.RESULTS: Zinc phosphate cement had a significantly greater amount of remaining cement excess than calcium aluminate glass ionomer cement in terms of total number of pixels (p = 0.002) and amount in grams (p = 0.005).CONCLUSION: The study suggests that the amount of remaining cement excess can be affected by the type of cement. Calcium aluminate glass ionomer cement may be a more suitable choice for cement-retained dental implant restorations, and possibly reduce the risk of complications related to cement excess such as peri-implant disease. Further studies are needed to verify the results from the present study.
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| 2. |
- Bui, Tuyet T. A., et al.
(author)
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Botrytis cinerea differentially induces postharvest antioxidant responses in 'Braeburn' and 'Golden Delicious' apple fruit
- 2019
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In: Journal of the Science of Food and Agriculture. - : John Wiley & Sons. - 0022-5142 .- 1097-0010. ; 99:13, s. 5662-5670
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Journal article (peer-reviewed)abstract
- BACKGROUND: The fruit of two apple cultivars - 'Braeburn', which is susceptible to inoculation with Botrytis cinerea, and the less susceptible cv. 'Golden Delicious' - were investigated with respect to their response to inoculation with B. cinerea. Successful infection by B. cinerea leads to an oxidative burst and perturbation of plant redox homeostasis. To investigate the interaction between apple fruit and B. cinerea, antioxidant metabolism in fruit samples from sun-exposed and shaded sides of different tissue types was measured over time.RESULTS: The sun-exposed tissue of 'Braeburn' had higher initial levels of total vitamin C in the peel and phenolic compounds in the flesh than 'Golden Delicious', despite its greater susceptibility to gray mold. A substantial antioxidant response was recorded in diseased 'Braeburn' fruit 14 days after inoculation, which involved an elevated superoxide dismutase activity and ascorbate peroxidase activity, a progressive oxidation of total vitamin C, and a decrease in peroxidase activity and phenolic content. Disease development was slower on the sun-exposed sides than on the shaded sides.CONCLUSION: The two cultivars appeared to utilize different strategies to defend themselves against B. cinerea. 'Golden Delicious' almost entirely escaped infection. Preharvest exposure of apple fruit to high light / temperature stress appears to prepare them to better resist subsequent postharvest attack and disease.
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| 3. |
- Falk, Anders
(author)
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Sacred Games - Becoming Gods : Priming digital game ethics
- 2019
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Licentiate thesis (other academic/artistic)abstract
- The point of departure for my research is a perceived breach and resulting dissonance between how digital games and other parts of society that are similar in form, enact certain aspects of life. This shift was made especially clear in massive multiplayer games in 2004 with the release of World of Warcraft, the design of which panders to cultural weak points, rather than attempting to mimic them. Digital games are far-reaching. In February 2019, ‘Apex Legends’ reached over 10 million players in less than 72 hours. Nonetheless, the idea of games as separate from the ‘real’ is persisting. Digital games have become a cyclopean gathering of liminality, and there are still no form-based ethics emerging, from either industry or society. Even though society is now undergoing the same abstracting digitisation, that has been a base for game design for a long time, there is a continuing separation in the knowledge applying to games or ‘reality’. The purpose of this thesis is to explore different ontological, epistemological, and ethical understandings of digital games as media, technology, modes of experience, and form. This is undertaken by using the situated and reality producing grating1 of technoscience, together with an eclectic range of concepts such as media as a message, agential reality, liminal phases, anticipation, and ergon. The research delineates a primer for applied studies within the rhizomatic structure of digital games, digitisation, technoscience, and media-technology. In accordance with this aim, the thesis has a fragmented, non-linear, and mosaic approach. This licentiate thesis is a compilation of three papers with a complementary introduction and an epilogue.
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| 4. |
- Löfroth, M, et al.
(author)
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Bisphenol A in dental materials : existence, leakage and biological effects
- 2019
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In: Heliyon. - : Elsevier. - 2405-8440. ; 5:5
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Research review (peer-reviewed)abstract
- Objective: Recently, questions have been raised concerning the potential endocrine disrupting effects of bisphenol A (BPA). This substance is a constituent in many different products which we frequently come into contact with, such as food containers and receipts. Resin-based dental filling materials are another source of exposure, although according to previous studies the amount and potential risks are not clear. Thus, the aims of the present study were (1) to identify if direct dental filling materials are liable to leak BPA and (2) to investigate if this leakage could lead to any adverse effects on health. Materials and methods: A literature search was made with PubMed as the primary source, subsequently complemented with reference tracking. Results: A total of 26 articles were included, 24 of which were used for the first aim (leakage) and 2 for the second aim (health risks). The majority of studies, including all in vivo studies, showed leakage of BPA from dental materials in various amounts and during different time intervals. The findings showed a contradiction in results regarding the connection between dental materials and adverse health effects. Conclusions: There is leakage of BPA from some dental materials, but critical levels are not evident. Bis-DMA contents might convert to BPA in the oral cavity. There is a contradiction between in vitro and in vivo studies concerning BPA leakage and finally, there is a lack of studies investigating the association between BPA exposure and its adverse effects on human health.
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| 5. |
- Falk, Anders B., et al.
(author)
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Influence of some weather parameters on the susceptibility of apple fruit to postharvest grey mould attack
- 2018
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In: Proceedings 2018. ; , s. 124-127
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Conference paper (peer-reviewed)abstract
- Several cultural and weather factors during the season influence the susceptibility of apple fruit to post-harvest pathogens. In the present study, the effect of different weather parameters on postharvest susceptibility of apples of the cv. ‘Ingrid Marie’ to grey mould was investigated. In 2015, apple fruit were collected from orchards in Southern Sweden, where local weather stations monitored different parameters. After harvest, the fruit were tested for susceptibility to grey mould by artificially inoculating them with%FLQHUHD. Lesion development was monitored over a 10-day-period. Analysis of results for a few orchards showed that cold weather for over a month preceding harvest and a low total number of growth degree days gave apples that were more susceptible to grey mould. This study was carried out in conventional orchards, but the conclusions can be important also for organic production, since they deal with the general effect of sunshine, temperature and rain, factors that may strengthen fruit during cultivation, regardless of production type. Future studies may focus on organic production to investigate whether these effects are general and also apply to organic production.
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| 6. |
- Falk, Anders, et al.
(author)
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Reliability of the impression replica technique
- 2015
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In: International Journal of Prosthodontics. - : Quintessence. - 0893-2174 .- 1139-9791. ; 28:2, s. 179-180
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Journal article (peer-reviewed)abstract
- The aim of this study was to evaluate the reliability of the impression replica technique with a four-unit zirconia fixed dental prosthesis (FOP). Marginal and internal fit were measured by repeatedly placing the FDP on an epoxy cast using light-body silicone material corresponding to cement. All measured marginal and internal fit points showed varying values. The greatest variations were seen at the most distal margin (33 mu m) and at the distal abutment of the FDP (77 mu m). The results showed that the technique gives moderate variations and is a useful method to evaluate marginal and internal fit.
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| 7. |
- Falk, Anders, et al.
(author)
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Reliability of the Impression Replica Technique
- 2015
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In: International Journal of Prosthodontics. - 0893-2174 .- 1139-9791. ; 28:2, s. 179-180
-
Journal article (peer-reviewed)abstract
- The aim of this study was to evaluate the reliability of the impression replica technique with a four-unit zirconia fixed dental prosthesis (FOP). Marginal and internal fit were measured by repeatedly placing the FDP on an epoxy cast using light-body silicone material corresponding to cement. All measured marginal and internal fit points showed varying values. The greatest variations were seen at the most distal margin (33 mu m) and at the distal abutment of the FDP (77 mu m). The results showed that the technique gives moderate variations and is a useful method to evaluate marginal and internal fit.
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| 8. |
- Falk, Anders
(author)
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Sequencing of 15622 gene-bearing BACs clarifies the gene-dense regions of the barley genome
- 2015
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In: Plant Journal. - : Wiley. - 0960-7412 .- 1365-313X. ; 84, s. 216-227
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Journal article (peer-reviewed)abstract
- Barley (Hordeum vulgare L.) possesses a large and highly repetitive genome of 5.1Gb that has hindered the development of a complete sequence. In 2012, the International Barley Sequencing Consortium released a resource integrating whole-genome shotgun sequences with a physical and genetic framework. However, because only 6278 bacterial artificial chromosome (BACs) in the physical map were sequenced, fine structure was limited. To gain access to the gene-containing portion of the barley genome at high resolution, we identified and sequenced 15622 BACs representing the minimal tiling path of 72052 physical-mapped gene-bearing BACs. This generated 1.7Gb of genomic sequence containing an estimated 2/3 of all Morex barley genes. Exploration of these sequenced BACs revealed that although distal ends of chromosomes contain most of the gene-enriched BACs and are characterized by high recombination rates, there are also gene-dense regions with suppressed recombination. We made use of published map-anchored sequence data from Aegilops tauschii to develop a synteny viewer between barley and the ancestor of the wheat D-genome. Except for some notable inversions, there is a high level of collinearity between the two species. The software HarvEST:Barley provides facile access to BAC sequences and their annotations, along with the barley-Ae.tauschii synteny viewer. These BAC sequences constitute a resource to improve the efficiency of marker development, map-based cloning, and comparative genomics in barley and related crops. Additional knowledge about regions of the barley genome that are gene-dense but low recombination is particularly relevant.
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| 9. |
- Sansone, Mikael, et al.
(author)
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Can hip impingement be mistaken for tendon pain in the groin? A long-term follow-up of tenotomy for groin pain in athletes.
- 2014
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In: Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA. - : Springer Science and Business Media LLC. - 1433-7347. ; 22:4, s. 786-792
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Journal article (peer-reviewed)abstract
- There are several reports on the association between pubalgia and intra-articular hip disorders. The purpose of this study was to evaluate the long-term outcome in athletes who underwent tenotomy due to long-standing groin pain. A secondary purpose was evaluating the frequency of femoro-acetabular impingement (FAI) and its impact on the long-term outcome.
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| 10. |
- Wright, Sandra, A. I., 1962, et al.
(author)
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Barley lesion mimics, supersusceptible or highly resistant to leaf rust and net blotch
- 2013
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In: Plant Pathology. - : Wiley. - 0032-0862 .- 1365-3059. ; 62:5, s. 982-992
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Journal article (peer-reviewed)abstract
- Lesion mimic mutants of plants have the feature of spontaneously displaying necrotic spots or bands on their leaves. Lesion mimics have often displayed enhanced resistance to biotrophic pathogens whilst showing increased susceptibility to necrotrophs. This paper identifies three novel, non-allelic mutants of barley (Hordeum vulgare), which spontaneously form necrotic leaf lesions: Necrotic leaf spot 9.3091 (nec9.3091), Mottled leaf 8.1661 (mtt8.1661) and Mottled leaf 9.2721 (mtt9.2721). The Necrotic leaf spot 8.3550 mutant (nec8.3550), formerly known as bst1, was included in the study because it is a lesion mimic mutant belonging to the same original pool. The reactions of the mutants to the biotroph Puccinia hordei and the necrotroph Pyrenophora teres f. sp. teres were investigated. Mutants nec8.3550 and mtt8.1661 were more resistant than the parental Bowman near-isogenic line with the Rph3.c gene (Bowman Rph3.c, NGB 22452) to leaf rust, caused by P.hordei. Mutants nec8.3550, mtt8.1661 and mtt9.2721 were more susceptible than Bowman Rph3.c to net blotch, caused by P.teres f. sp. teres. Autofluorescence was detected in leaf tissues of all mutants. Based on the high expression of the PR1 and Hv-HIR genes, combined with the low susceptibility to P.hordei, nec8.3550 appears to have entered a state of systemic acquired resistance, which is quite distinct from the resistance expressed in mtt8.1661. The latter mutant has low or no expression of PR1 and Hv-HIR genes, yet it is highly resistant to rust. It is also extremely susceptible to net blotch. These mutants can serve as genetic sources of novel disease resistance for barley improvement.
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