| 1. |
- Petersson Troije, Charlotte, et al.
(author)
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Outdoor Office Work : An Interactive Research Project Showing the Way Out
- 2021
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In: Frontiers in Psychology. - : Frontiers Media SA. - 1664-1078. ; 12
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Journal article (peer-reviewed)abstract
- The physical boundaries of office work have become increasingly flexible. Work is conducted at multiple locations outside the office, such as at clients' premises, at home, in cafés, or when traveling. However, the boundary between indoor and outdoor environment seems to be strong and normative regarding how office work is performed. The aim of this study was to explore how office work may be conducted outdoors, understanding how it is being experienced by office employees and identifying its contextual preconditions. Based on a two-year interactive research project, the study was conducted together with a Swedish municipality. Fifty-eight participants engaged in the collaborative learning process, including 40 half-day workshops and reflective group discussions, co-interviews, and participants' independent experimentation of bringing work activities outdoors. Data was collected via interviews, group discussions and a custom-made mobile application. The results showed that a wide range of work activities could be done outdoors, both individually and in collaboration with others. Outdoor work activities were associated with many positive experiences by contributing to a sense of well-being, recovery, autonomy, enhanced cognition, better communication, and social relations, but also with feelings of guilt and illegitimacy. Conditions of importance for outdoor office work to happen and function well were found in the physical environment, where proximity to urban greenspaces stood out as important, but also in the sociocultural and organizational domains. Of crucial importance was managers' attitudes, as well as the overall organizational culture on this idea of bringing office work outdoors. To conclude, if working life is to benefit from outdoor office work, leaders, urban planners and policymakers need to collaborate and show the way out.
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| 2. |
- Laurien, Thomas, 1967, et al.
(author)
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An Emerging Posthumanist Design Landscape
- 2022
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In: Palgrave Handbook of Critical Posthumanism. - Cham : Palgrave Macmillan. - 9783030426811 - 9783030426811 - 9783031049576 - 9783031049583
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Book chapter (peer-reviewed)abstract
- A designer is somebody who points, who designates, and gives directions. Design thereby has a direction into the future. What directions are designers pointing out if design is coupled with posthumanism? Posthumanism has come into being in a landscape of both ideas and design. That which has previously been designed and produced is coming back and it can help us point out harmful inequalities if we sharpen our observational tools and concepts.“An Emerging Posthumanist Design Landscape” is an overflowing designated area for examples and thinking on compositions of design and critical posthumanism. It is a landscape in the making, yet scarred by previous design cultures and histories. As design researchers operating out of Scandinavian academia, we invite readers/travelers to meander through an emerging hybrid landscape and to make a few selected stops at the sites of our own recent design interventions. We articulate concepts, frictions, and opportunities sprouted in a sprawling and increasingly populated landscape of design and posthumanism. Posthumanist thinking questions and recharges fundamental design concepts and methods/approaches, e.g.: Who are the actors of posthumanist design? Where does it take place? What do we design? What materials do we use? How do we work? When does design take place? Why are compositions of design and critical posthumanism important undertakings? The responses to these questions sketch trajectories for further travels and the co-creation of an emerging posthumanist design landscape.
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| 3. |
- Aminoff, Hedvig, et al.
(author)
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Telemedicine for Remote Surgical Guidance in Endoscopic Retrograde Cholangiopancreatography : Mixed Methods Study of Practitioner Attitudes
- 2021
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In: JMIR Formative Research. - : JMIR Publications. - 2561-326X. ; 5:1
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Journal article (peer-reviewed)abstract
- BACKGROUND: Telemedicine innovations are rarely adopted into routine health care, the reasons for which are not well understood. Teleguidance, a promising service for remote surgical guidance during endoscopic retrograde cholangiopancreatography (ERCP) was due to be scaled up, but there were concerns that user attitudes might influence adoption.OBJECTIVE: Our objective was to gain a deeper understanding of ERCP practitioners' attitudes toward teleguidance. These findings could inform the implementation process and future evaluations.METHODS: We conducted semistructured interviews with ERCP staff about challenges during work and beliefs about teleguidance. Theoretical constructs from the technology acceptance model (TAM) guided the thematic analysis. Our findings became input to a 16-item questionnaire, investigating surgeons' beliefs about teleguidance's contribution to performance and factors that might interact with implementation.RESULTS: Results from 20 interviews with ERCP staff from 5 hospitals were used to adapt a TAM questionnaire, exchanging the standard "Ease of Use" items for "Compatibility and Implementation Climate." In total, 23 ERCP specialists from 15 ERCP clinics responded to the questionnaire: 9 novices (<500 ERCP procedures) and 14 experts (>500 ERCP procedures). The average agreement ratings for usefulness items were 64% (~9/14) among experts and 75% (~7/9) among novices. The average agreement ratings for compatibility items were somewhat lower (experts 64% [~9/14], novices 69% [~6/9]). The averages have been calculated from the sum of several items and therefore, they only approximate the actual values. While 11 of the 14 experts (79%) and 8 of the 9 novices (89%) agreed that teleguidance could improve overall quality and patient safety during ERCP procedures, only 8 of the 14 experts (57%) and 6 of the 9 novices (67%) agreed that teleguidance would not create new patient safety risks. Only 5 of the 14 experts (36%) and 3 of the 9 novices (33%) were convinced that video and image transmission would function well. Similarly, only 6 of the 14 experts (43%) and 6 of the 9 novices (67%) agreed that administration would work smoothly. There were no statistically significant differences between the experts and novices on any of the 16 items (P<.05).CONCLUSIONS: Both novices and experts in ERCP procedures had concerns that teleguidance might disrupt existing work practices. However, novices were generally more positive toward teleguidance than experts, especially with regard to the possibility of developing technical skills and work practices. While newly trained specialists were the main target for teleguidance, the experts were also intended users. As experts are more likely to be key decision makers, their attitudes may have a greater relative impact on adoption. We present suggestions to address these concerns. We conclude that using the TAM as a conceptual framework can support user-centered inquiry into telemedicine design and implementation by connecting qualitative findings to well-known analytical themes.
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| 4. |
- Ryden, Lars, et al.
(author)
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Periodontitis Increases the Risk of a First Myocardial Infarction A Report From the PAROKRANK Study
- 2016
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In: Circulation. - : Lippincott Williams & Wilkins. - 0009-7322 .- 1524-4539. ; 133:6, s. 576-583
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Journal article (peer-reviewed)abstract
- Background The relationship between periodontitis (PD) and cardiovascular disease is debated. PD is common in patients with cardiovascular disease. It has been postulated that PD could be causally related to the risk for cardiovascular disease, a hypothesis tested in the Periodontitis and Its Relation to Coronary Artery Disease (PAROKRANK) study. Methods and Results Eight hundred five patients (<75 years of age) with a first myocardial infarction (MI) and 805 age- (mean 628), sex- (male 81%), and area-matched controls without MI underwent standardized dental examination including panoramic x-ray. The periodontal status was defined as healthy (80% remaining bone) or as mild-moderate (from 79% to 66%) or severe PD (<66%). Great efforts were made to collect information on possibly related confounders (approximate to 100 variables). Statistical comparisons included the Student pairwise t test and the McNemar test in 2x2 contingency tables. Contingency tables exceeding 2x2 with ranked alternatives were tested by Wilcoxon signed rank test. Odds ratios (95% confidence intervals) were calculated by conditional logistic regression. PD was more common (43%) in patients than in controls (33%; P<0.001). There was an increased risk for MI among those with PD (odds ratio, 1.49; 95% confidence interval, 1.21-1.83), which remained significant (odds ratio, 1.28; 95% confidence interval, 1.03-1.60) after adjusting for variables that differed between patients and controls (smoking habits, diabetes mellitus, years of education, and marital status). Conclusions In this large case-control study of PD, verified by radiographic bone loss and with a careful consideration of potential confounders, the risk of a first MI was significantly increased in patients with PD even after adjustment for confounding factors. These findings strengthen the possibility of an independent relationship between PD and MI.
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| 5. |
- Zhang, Chu, et al.
(author)
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Steps and catalytic reactions : CO oxidation with preadsorbed O on Rh(553)
- 2022
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In: Surface Science. - : Elsevier BV. - 0039-6028 .- 1879-2758. ; 715
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Journal article (peer-reviewed)abstract
- Industrial catalysts are often comprised of nanoparticles supported on high-surface-area oxides, in order to maximise the catalytically active surface area and thereby utilise the active material better. These nanoparticles expose steps and corners that, due to low coordination to neighboring atoms, are more reactive and, as a consequence, are often assumed to have higher catalytic activity. We have investigated the reaction between CO and preadsorbed O on a stepped Rh(553) surface, and show that CO oxidation indeed occurs faster than on the flat Rh(111) surface at the same temperature. However, we do find that this is not a result of reactions at the step sites but rather at the terrace sites close to the steps, due to in-plane relaxation enabled by the step. This insight can provide ways to optimize the shape of the nanoparticles to further improve the activity of certain reactions.
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| 6. |
- Ferrannini, Giulia, et al.
(author)
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Long-term prognosis after a first myocardial infarction : eight years follow up of the case-control study PAROKRANK
- 2022
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In: Scandinavian Cardiovascular Journal. - : Informa UK Limited. - 1401-7431 .- 1651-2006. ; 56:1, s. 337-342
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Journal article (peer-reviewed)abstract
- Objective. To explore long-term cardiovascular outcomes and mortality in patients after a first myocardial infarction (MI) compared with matched controls in a contemporary setting. Methods. During 2010-2014 the Swedish study PAROKRANK recruited 805 patients <75 years with a first MI and 805 age-, gender-, and area-matched controls. All study participants were followed until 31 December 2018, through linkage with the National Patient Registry and the Cause of Death Registry. The primary endpoint was the first of a composite of all-cause death, non-fatal MI, non-fatal stroke, and heart failure hospitalization. Event rates in cases and controls were calculated using a Cox regression model, subsequently adjusted for baseline smoking, education level, and marital status. Kaplan-Meier curves were computed and compared by log-rank test. Results. A total of 804 patients and 800 controls (mean age 62 years; women 19%) were followed for a mean of 6.2 (0.2-8.5) years. The total number of primary events was 211. Patients had a higher event rate than controls (log-rank test p < .0001). Adjusted hazard ratio (HR) for the primary outcome was 2.04 (95% CI 1.52-2.73). Mortality did not differ between patients (n = 38; 4.7%) and controls (n = 35; 4.4%). A total of 82.5% patients and 91.3% controls were event-free during the follow up. Conclusions. In this long-term follow up of a contemporary, case-control study, the risk for cardiovascular events was higher in patients with a previous first MI compared with their matched controls, while mortality did not differ. The access to high quality of care and cardiac rehabilitation might partly explain the low rates of adverse outcomes.
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| 7. |
- Frennert, Susanne, PhD, et al.
(author)
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The concept of welfare technology in Swedish municipal eldercare
- 2021
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In: Disability and Rehabilitation. - London : Taylor & Francis. - 0963-8288 .- 1464-5165. ; 43:9, s. 1220-1227
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Journal article (peer-reviewed)abstract
- Purpose: An ageing population presents a challenge for municipal eldercare in Sweden due to difficulties recruiting staff and there being a strained economy. A strategy involving welfare technology is presented as one such solution. An important group to carry out this strategy involves those who work with welfare technology in municipal eldercare. In this paper we describe their perception of welfare technology, and the challenges and opportunities they perceive in utilizing it. Methods: A self-administered online questionnaire was distributed to all Swedish municipalities and answered by 393 respondents. Analyses show that the respondents were representative of the different professions who work with welfare technology within municipal eldercare.Results: Welfare technology was perceived as being more reliable and safer than humans with regards to supervisions and reminders. The respondents acknowledged factors that slowed down the implementation of welfare technology in municipal eldercare organizations, such as resistance to change, lack of finances, lack of supporting evidence, lack of infrastructure, high staff turnover, difficulties with procurement and uncertainties about responsibility and laws.Conclusions: We found that the people who work with and make decisions about welfare technology in municipal eldercare organizations were generally very positive about the deployment and use of such technology, but there appear to be problems within municipal eldercare organizations to realize this vision. The lack of structured implementation processes and coherent evaluation models indicates inequality of the access to welfare technology and, as a result, even though Swedish eldercare is publicly funded, the availability of welfare technologies and their usage differ between municipalities.
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| 8. |
- Mutafela, Richard, et al.
(author)
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Sustainable extraction of hazardous metals from crystal glass waste using biodegradable chelating agents
- 2022
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In: Journal of Material Cycles and Waste Management. - : Springer Nature. - 1438-4957 .- 1611-8227. ; 24:2, s. 692-701
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Journal article (peer-reviewed)abstract
- Extraction of hazardous metals from dumped crystal glass waste was investigated for site decontamination and resource recovery. Mechanically activated glass waste was leached with biodegradable chelating agents of ethylenediamine-N,N′-disuccinic acid (EDDS) and nitrilotriacetic acid (NTA), where the concentration and reaction time were determined by using Box–Wilson experimental design. Hazardous metals of lead (Pb), arsenic (As), antimony (Sb) and cadmium (Cd) with concentrations higher than regulatory limits were extracted wherein the extraction yield was found to vary Pb > Sb > As > Cd. Extraction was influenced more by type and concentration of chelator rather than by reaction time. A maximum of 64% of Pb could be extracted by EDDS while 42% using NTA. It is found that increase of chelator concentrations from 0.05 M to 1 M did not show improved metal extraction and the extraction improved with reaction time until 13 h. This study provides sustainable alternative for treating hazardous glass waste by mechanical activation followed by extraction using biodegradable chelator, instead of acid leaching. Graphical abstract: [Figure not available: see fulltext.].
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| 9. |
- Nakamura, K., et al.
(author)
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Critical considerations on load-to-failure test for monolithic zirconia molar crowns
- 2018
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In: Journal of the Mechanical Behavior of Biomedical Materials. - : Elsevier BV. - 1751-6161 .- 1878-0180. ; 87, s. 180-189
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Journal article (peer-reviewed)abstract
- Application of monolithic zirconia crowns (MZCs) with reduced thickness to the molar region has been proposed, but potential complications have yet to be fully evaluated in laboratory tests. The present study aimed to develop a clinically relevant load-to-failure test in combination with fatigue treatments involving thermal and mechanical cycling (TC and MC) to evaluate the fracture resistance of molar MZCs. MZCs with a minimal thickness of 0.5 mm were bonded to dies made of resin-based composite (RBC), epoxy resin (EP), or polyoxymethylene-copolymer (POM-C). The samples were either untreated (UT) or subjected to TC (5-55 degrees C for 1 x 10(5) cycles) and MC (300 N for 2.4 x 10(6) cycles). The stress generated by TC and MC was simulated by finite element modeling. The load-to-failure test was performed using an inverse V-shaped two-plane indenter and was followed by fractographic analysis. The median values of fracture load for MZC/RBC and MZC/EP in the TC group were significantly lower than those in the UT group. MC also decreased the median value of fracture load for MZC/RBC significantly, but not that for MZC/EP and MZC/POM-C. Fractography revealed that the fracture started in the cervical area in all groups, which is similar to clinically failed crowns. The simulation confirmed stress concentration at the cervical area in both TC and MC groups. The present study suggests that the load-to-failure test using a two-plane indenter could induce clinically relevant fracture of MZCs, the vulnerability of the MZCs depends largely on the die material employed, and MZCs are more likely to be damaged by thermal fatigue than mechanical fatigue.
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| 10. |
- Albèr, Cathrine, et al.
(author)
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Effects of water gradients and use of urea on skin ultrastructure evaluated by confocal Raman microspectroscopy
- 2013
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In: Biochimica et Biophysica Acta - Biomembranes. - : Elsevier. - 0005-2736 .- 1879-2642 .- 0006-3002. ; 1828:11, s. 2470-2478
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Journal article (peer-reviewed)abstract
- The rather thin outermost layer of the mammalian skin, stratum corneum (SC), is a complex biomembrane which separates the water rich inside of the body from the dry outside. The skin surface can be exposed to rather extreme variations in ambient conditions (e.g. water activity, temperature and pH), with potential effects on the barrier function. Increased understanding of how the barrier is affected by such changes is highly relevant for regulation of transdermal uptake of exogenous chemicals. In the present study we investigate the effect of hydration and the use of a well-known humectant, urea, on skin barrier ultrastructure by means of confocal Raman microspectroscopy. We also perform dynamic vapor sorption (DVS) microbalance measurements to examine the water uptake capacity of SC pretreated with urea. Based on novel Raman images, constructed from 2D spectral maps, we can distinguish large water inclusions within the skin membrane exceeding the size of fully hydrated corneocytes. We show that these inclusions contain water with spectral properties similar to that of bulk water. The results furthermore show that the ambient water activity has an important impact on the formation of these water inclusions as well as on the hydration profile across the membrane. Urea significantly increases the water uptake when present in skin, as compared to skin without urea, and it promotes formation of larger water inclusions in the tissue. The results confirm that urea can be used as a humectant to increase skin hydration.
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