| 1. |
- Olsson, Gunnel, et al.
(author)
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Kinetics of coal desulphurization by Acidianus brierleyi
- 1993
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In: Chemical Engineering & Technology. - : Wiley. - 1521-4125 .- 0930-7516. ; 16:3, s. 180-185
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Journal article (peer-reviewed)abstract
- Acidianus brierleyi was demonstrated to remove pyritic sulphur from coal. A. brierleyi was also found capable of catalyzing the removal of what is normally reported as organic sulphur from coal 171US34. A kinetic analysis was performed by assuming a first order reaction. The first order kinetics allowed a comparison with literature data for Thiobacillus ferrooxidans. Also, formation of jarosite was taken into account in the analysis. The simple first order kinetics was observed to fit the data on removal of sulphur satisfactorily.
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| 4. |
- Andreasson, Ingrid, et al.
(author)
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Daily life one year after corrective osteotomy for malunion of a distal radius fracture an interview study
- 2022
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In: Journal of Plastic Surgery and Hand Surgery. - : Medical Journals Sweden AB. - 2000-656X .- 2000-6764. ; 56:1, s. 16-22
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Journal article (peer-reviewed)abstract
- The aim of this study was to explore the everyday life experiences of people one year after corrective osteotomy following a symptomatic, malunited, distal radius fracture. Semi-structured interviews were conducted with twenty respondents, median age 65 (22-81) years. The respondents were recruited consecutively. The interviews were subjected to qualitative content analysis. Three authors took part in the analysis. The result is presented as one theme, 'Daily life works again' with five categories: Relief of inconveniences and symptoms, Managing new symptoms and complications, Regaining abilities, Normalised social relationships, Increased wellbeing. The symptoms had declined in severity, some participants regarded themselves as fully restored and used their hand again without hesitation. Others were still bothered by their wrist occasionally and a few had to manage complications. The participants had regained the ability to perform many everyday life activities and reported increased independence and less irritation between spouses, as well as increased wellbeing. One year after a corrective osteotomy following malunion of a distal radius fracture, the patients' experiences represent a continuum. Some are still restricted by their wrist occasionally, the majority experience an increased ease in their performance of activities of daily life and some regard themselves as fully restored. The recovery has a positive impact on social relationships and the patients' wellbeing.
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| 5. |
- Andreasson, Ingrid, et al.
(author)
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Life has become troublesome–my wrist bothers me around the clock: an interview study relating to daily life with a malunited distal radius fracture
- 2020
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In: Disability and Rehabilitation. - : Informa UK Limited. - 0963-8288 .- 1464-5165. ; 42:16, s. 2344-2350
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Journal article (peer-reviewed)abstract
- Purpose: The aim of this study was to explore the everyday life experiences of people suffering from a symptomatic, malunited, distal radius fracture. Method: Qualitative interviews were conducted with twenty respondents, median age 59 [16–85] years. The interviews were subjected to qualitative content analysis. Results: The result, presented as one main theme with categories and subcategories, describes the impact of the injury. Everyday life was affected in all participants, very much in a few highly valued activities such as sports and work, whenever the hand was used, or even at rest. This study indicates that the injury has an impact on the ability to move around, other parts of the body, sleep, emotions, self-perception and relationships. It also shows that the patients used several strategies to manage the situation. Conclusion: The malunion of a distal radius fracture has a negative impact on a wide range of daily activities, as well as other aspects of daily life. There is a need for information between caregivers and patients, and clear routines, once a malunion has occurred.Implications for rehabilitation The symptomatic malunion of a distal radius fracture should be acknowledged as a complex condition requiring comprehensive interventions Technical equipment, braces and new solutions on practical problems was necessary to manage everyday life and should be a focus of intervention for this patient group The consequences of the injury was not only restricted activity performance but also affected social relationships and emotions Information about fracture healing and how a malunion can occur, as well as information on how much the wrist can be loaded at different time points, is important to reduce anxiety. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.
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| 6. |
- Balmes, Olivier, et al.
(author)
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Cryo-TEM observation of 3-dimensionally ordered aggregates of 5-nm gold particles in organic solvents
- 2004
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In: Journal of Nanoparticle Research. - : Springer Science and Business Media LLC. - 1572-896X .- 1388-0764. ; 6:6, s. 569-576
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Journal article (peer-reviewed)abstract
- In this article, we show evidence for the assembly of ordered 3-dimensional aggregates of 5-nm gold particles in toluene, 1-octanol, n-decane, and chloroform. The use of plunge-freezing allows to freeze the solution containing the aggregates at a rate which does not allow reorganisation of the particles during sample preparation. The samples were then observed using cryo-transmission electron microscopy (cryo-TEM) showing that most of the particles were part of ordered aggregates, thus proving that organisation already exists in solution. In some cases, the stability of the sample under the electron beam made it possible to record several pictures of the same aggregate at different angles and build animated tilt series.
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| 7. |
- Balmes, Olivier, et al.
(author)
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Imaging atomic structure in metal nanoparticles using high-resolution cryo-TEM
- 2006
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In: Microscopy and Microanalysis. - 1435-8115. ; 12:2, s. 145-150
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Journal article (peer-reviewed)abstract
- It has been shown, by imaging gold (200) planes, that it is possible to achieve better than 0.20-nm structural resolution in cryo-transmission electron microscopy (cryo-TEM). This has been done using commercially available cryo equipment and using a 300-kV field emission gun (FEG) TEM. The images of 15-nm gold particles embedded in amorphous frozen water clearly show the (111) planes (separated by 0.235 nm) in gold. Fourier transform demonstrates the presence of (200) planes in the image, proving a resolution of better than 0.20 nm. The experimental results are Supported by image simulations using the multislice method. These simulations suggest that it should be possible to achieve the same resolution even in smaller particles and particles of lighter elements. The crucial experimental problem to overcome is keeping the thickness of the amorphous film low and to work at low electron dose conditions.
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| 8. |
- Castro, Maria, et al.
(author)
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Zeolite Beta Formation from Clear Sols : Silicate Speciation, Particle Formation and Crystallization Monitored by Complementary Analysis Methods
- 2016
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In: Chemistry - A European Journal. - : Wiley. - 0947-6539. ; 22:43, s. 15307-15319
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Journal article (peer-reviewed)abstract
- The formation of silicate nanoaggregates (NAs) at the very early stages of precursor sols and zeolite beta crystallization from silicate nanoparticles (NPs) are investigated in detail using a combination of different analysis methods, including liquid-state 29Si, 27Al, 14N, and 1H NMR spectroscopy, mass spectrometry (MS), small-angle X-ray scattering (SAXS), X-ray diffraction (XRD), and transmission electron microscopy at cryogenic temperatures (cryo-TEM). Prior to hydrothermal treatment, silicate NAs are observed if the Si/OH ratio in the reaction mixture is greater than 1. Condensation of oligomers within the NAs then generates NPs. Aluminum doped into the synthesis mixtures is located exclusively in the NPs, and is found exclusively in a state that is fourfold connected to silicate, favoring their condensation and aggregation. These results are in agreement with general trends observed for other systems. Silicate NAs are essential intermediates for zeolite formation and are generated by the aggregation of hydrated oligomers, aluminate, and templating cations. Subsequent further intra-nanoaggregate silicate condensation results in the formation of NPs. 1H and 14N liquid NMR as well as diffusion ordered spectroscopy (DOSY) experiments provide evidence for weakly restricted rotational and translational mobility of the organic template within NAs as a consequence of specific silicate–template interactions. NAs thus appear as key species in clear sols, and their presence in the precursor sol favors silicate condensation and further crystallization, promoted either by increasing the Si/OH ratio or by heating.
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| 14. |
- Heneen, Waheeb K., et al.
(author)
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Fusion of oil bodies in endosperm of oat grains
- 2008
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In: Planta. - : Springer Science and Business Media LLC. - 0032-0935 .- 1432-2048. ; 228:4, s. 589-599
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Journal article (peer-reviewed)abstract
- Few microscopical studies have been made on lipid storage in oat grains, with variable results as to the extent of lipid accumulation in the starchy endosperm. Grains of medium- and high-lipid oat (Avena sativa L.) were studied at two developmental stages and at maturity, by light microscopy using different staining methods, and by scanning and transmission electron microscopy. Discrete oil bodies occurred in the aleurone layer, scutellum and embryo. In contrast, oil bodies in the starchy endosperm often had diffuse boundaries and fused with each other and with protein vacuoles during grain development, forming a continuous oil matrix between the protein and starch components. The different microscopical methods were confirmative to each other regarding the coalescence of oil bodies, a phenomenon probably correlated with the reduced amount of oil-body associated proteins in the endosperm. This was supported experimentally by SDS-PAGE separation of oil-body proteins and immunoblotting and immunolocalization with antibodies against a 16 kD oil-body protein. Much more oil-body proteins per amount of oil occurred in the embryo and scutellum than in the endosperm. Immunolocalization of 14 and 16 kD oil-body associated proteins on sectioned grains resulted in more heavy labeling of the embryo, scutellum and aleurone layer than the rest of the endosperm. Observations on the appearance of oil bodies at an early stage of development pertain to the prevailing hypotheses of oil-body biogenesis.
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| 15. |
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| 16. |
- Hjalmarsson, Anna, 1976-
(author)
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Being provided with a safe haven : Care-dependent older persons' participation in prehospital emergency care
- 2023
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Doctoral thesis (other academic/artistic)abstract
- Participation in care is a key concept in many welfare societies and serves to guide clinical practice and adapt care to personal preferences and needs in order to promote well-being and quality of life. Previous research has shown that practicing participation in care is complex due to the concept not being clearly defined. A significant risk is, therefore, that participation in care is practiced based on the professional caregivers' own definitions, which might be inconsistent with the cared-for persons' perceptions of what participation is.Older persons can continue to live in their own homes with the support of municipal home care services that meet everyday care needs. Care-dependent older persons are known to have increased emergency care needs, which in Sweden require inter-organizational and inter-professional collaboration involving a care transfer between welfare levels. This thesis aimed to deepen the understanding of care-dependent older persons' participation in prehospital emergency care from lifeworld and welfare perspectives. The inductive design was based on a lifeworld approach and included triangulation of the phenomenon of participation in care using descriptive, interpretative, and comparative methods.From the perspective of care-dependent older persons, participation in prehospital emergency care means a forced transfer of life responsibility to professional caregivers when being existentially unsafe and incapacitated due to acute illness. Through authorized representation, the professional caregivers act for the older person, with the power to bring about change and create opportunities for existence. Care-dependent older persons' participation in prehospital emergency care involves a deepened dependence that necessitates coexistence and being provided with a 'safe haven' through the entire emergency care chain. A 'safe haven' can be understood as an unconditional, calm, and sheltered interpersonal space for emotional rest that is provided to the older person during an existentially challenging situation. From the perspective of care-dependent older persons, the emergency care chain transcends organizational boundaries and includes mobile safety alarm services and emergency department attendance.The involved professionals must be supported in practicing participation in care based on a comprehensive understanding of the concept, and emergency care options must be aligned with the care-dependent older persons' need for coordinated and continuous care. Collaborative challenges related to unstructured collaboration and professional hierarchy need to be addressed to support well-functioning collaboration in situations involving acutely ill older persons. The involved organizations need to recognize care-dependent older persons' deepened dependence when acutely ill, as well as their extended view of the prehospital emergency care chain.
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| 17. |
- Hjort, Martin, et al.
(author)
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Electron microscopy imaging of proteins on gallium phosphide semiconductor nanowires
- 2016
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In: Nanoscale. - : Royal Society of Chemistry (RSC). - 2040-3372 .- 2040-3364. ; 8:7, s. 3936-3943
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Journal article (peer-reviewed)abstract
- We have imaged GaP nanowires (NWs) incubated with human laminin, serum albumin (HSA), and blood plasma using both cryo-transmission electron microscopy and synchrotron based X-ray photoemission electron microscopy. This extensive imaging methodology simultaneously reveals structural, chemical and morphological details of individual nanowires and the adsorbed proteins. We found that the proteins bind to NWs, forming coronas with thicknesses close to the proteins' hydrodynamic diameters. We could directly image how laminin is extending from the NWs, maximizing the number of proteins bound to the NWs. NWs incubated with both laminin and HSA show protein coronas with a similar appearance to NWs incubated with laminin alone, indicating that the presence of HSA does not affect the laminin conformation on the NWs. In blood plasma, an intermediate sized corona around the NWs indicates a corona with a mixture of plasma proteins. The ability to directly visualize proteins on nanostructures in situ holds great promise for assessing the conformation and thickness of the protein corona, which is key to understanding and predicting the properties of engineered nanomaterials in a biological environment.
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| 18. |
- Höglund, Evelina, et al.
(author)
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A meal concept designed for older adults : small enriched meals including dessert
- 2018
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In: Food and Nutrition Research. ; :62
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Journal article (peer-reviewed)abstract
- Background: The population of older adults is growing and many are at risk of disease-related malnutrition.This is a serious condition which increases the risk for other diseases and distress, human suffering and puts ahigh load on health care costs. Meal concepts tailored to suit the needs of older adults are required to decreasethe incidence of disease-related malnutrition.Objective: To evaluate sensory perception regarding a concept of small, protein and energy-enriched multicomponentmeals designed according to the nutritional needs of older adults.Design: A meal concept of small main courses with complementary desserts and protein and energy-enrichedproducts was evaluated using triangle tests, hedonic evaluation and focus group discussion. Enriched saucesand meals were compared to corresponding commercial products regarding appearance, taste, consistency andoverall acceptance.Results: The concept of a small main course with a complementary dessert was generally perceived as positiveby the target group. The acceptance scores for the enriched meals were generally lower than for the commercialmeals, mainly owing to the packaging of the enriched meals which required covering the food in sauce.Enriched sauces contained approximately 90% more protein than the commercial sauces. However, proteinenrichment affected the sensory properties of the sauces and they were perceived as thicker, creamier and lessflavour-intensive.Conclusions: A concept based on small, protein and energy-enriched meals supplemented with a dessert wasconsidered suitable for increasing the energy and protein intakes of older adults provided that the method ofenrichment ensures attractive sensorial properties.
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| 19. |
- Höglund, Evelina, et al.
(author)
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A meal concept designed for older adults - Small, enriched meals including dessert.
- 2018
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In: Food & nutrition research. - : SNF Swedish Nutrition Foundation. - 1654-661X .- 1654-6628. ; 62
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Journal article (peer-reviewed)abstract
- Background: The population of older adults is growing and many are at risk of disease-related malnutrition. This is a serious condition which increases the risk for other diseases and distress, human suffering and puts a high load on health care costs. Meal concepts tailored to suit the needs of older adults are required to decrease the incidence of disease-related malnutrition.Objective: To evaluate sensory perception regarding a concept of small, protein and energy-enriched multi-component meals designed according to the nutritional needs of older adults.Design: A meal concept of small main courses with complementary desserts and protein and energy-enriched products was evaluated using triangle tests, hedonic evaluation and focus group discussion. Enriched sauces and meals were compared to corresponding commercial products regarding appearance, taste, consistency and overall acceptance.Results: The concept of a small main course with a complementary dessert was generally perceived as positive by the target group. The acceptance scores for the enriched meals were generally lower than for the commercial meals, mainly owing to the packaging of the enriched meals which required covering the food in sauce. Enriched sauces contained approximately 90% more protein than the commercial sauces. However, protein enrichment affected the sensory properties of the sauces and they were perceived as thicker, creamier and less flavour-intensive.Conclusions: A concept based on small, protein and energy-enriched meals supplemented with a dessert was considered suitable for increasing the energy and protein intakes of older adults provided that the method of enrichment ensures attractive sensorial properties.
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| 20. |
- Höglund, Evevlina, et al.
(author)
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Protein and energy enriched muffins designed for nutritional needs of older adults
- 2017
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In: Nutrition & Food Sceince. - 2474-767X. ; 2:4
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Journal article (peer-reviewed)abstract
- Disease related malnutrition is a common problem among older adults which results in human suffering and high health care costs. One way to counteract this condition is to offer appetizing and nutritious food products adapted to the needs of older adults. However, macronutrient enrichment of food products is not straight forward as it affects flavour and texture properties. In this study, muffins were fortified with rape seed oil and whey powder to reach increased fat and/or protein content and the nutritional value, sensory properties and physical parameters were investigated. The results showed that ingredients could be added to significantly increase the energy and protein density, but enrichment affected on appearance and other sensory properties. Extra fat made the muffins flat and moist with a smooth and fatty mouth feel, while whey powder addition resulted in high/pointy muffins with shiny appearance, hard texture and altered flavours. For co-addition of fat and protein the effects of added protein dominated. The specific role of muffin/cake batter compounds, and their transformation during the baking process, needs to be further investigated. Hence, more research is needed in order to offer older adult appealing foods with high energy and nutrient density.
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| 21. |
- Höglund, Evevlina, et al.
(author)
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Protein and energy enriched muffins designed for nutritional needs of older adults
- 2017
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In: Nutrition & Food Sceince. - 2474-767X. ; 2:4
-
Journal article (peer-reviewed)abstract
- Disease related malnutrition is a common problem among older adults which results in human suffering and high health care costs. One way to counteract this condition is to offer appetizing and nutritious food products adapted to the needs of older adults. However, macronutrient enrichment of food products is not straight forward as it affects flavour and texture properties. In this study, muffins were fortified with rape seed oil and whey powder to reach increased fat and/or protein content and the nutritional value, sensory properties and physical parameters were investigated. The results showed that ingredients could be added to significantly increase the energy and protein density, but enrichment affected on appearance and other sensory properties. Extra fat made the muffins flat and moist with a smooth and fatty mouth feel, while whey powder addition resulted in high/pointy muffins with shiny appearance, hard texture and altered flavours. For co-addition of fat and protein the effects of added protein dominated. The specific role of muffin/cake batter compounds, and their transformation during the baking process, needs to be further investigated. Hence, more research is needed in order to offer older adult appealing foods with high energy and nutrient density.
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