| 1. |
- Hallvig, D., et al.
(författare)
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Sleepy driving on the real road and in the simulator - A comparison
- 2013
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Ingår i: Accident Analysis and Prevention. - : Elsevier BV. - 0001-4575 .- 1879-2057. ; 50, s. 44-50
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Tidskriftsartikel (refereegranskat)abstract
- Sleepiness has been identified as one of the most important factors contributing to road crashes. However, almost all work on the detailed changes in behavior and physiology leading up to sleep related crashes has been carried out in driving simulators. It is not clear, however, to what extent simulator results can be generalized to real driving. This study compared real driving with driving in a high fidelity, moving base, driving simulator with respect to driving performance, sleep related physiology (using electroencephalography and electrooculography) and subjective sleepiness during night and day driving for 10 participants. The real road was emulated in the simulator. The results show that the simulator was associated with higher levels of subjective and physiological sleepiness than real driving. However, both for real and simulated driving, the response to night driving appears to be rather similar for subjective sleepiness and sleep physiology. Lateral variability was more responsive to night driving in the simulator, while real driving at night involved a movement to the left in the lane and a reduction of speed, both of which effects were absent in the simulator. It was concluded that the relative validity of simulators is acceptable for many variables, but that in absolute terms simulators cause higher sleepiness levels than real driving. Thus, generalizations from simulators to real driving must be made with great caution.
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| 2. |
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| 3. |
- Wassenius, Ola, et al.
(författare)
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Variability in Skin Exposure in Machine Operators Exposed to Cutting Fluids
- 1998
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Ingår i: Scandinavian Journal of Work, Environment and Health. - : Scandinavian Journal of Work, Environment and Health. - 0355-3140 .- 1795-990X. ; 24:2, s. 125 - 129
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Tidskriftsartikel (refereegranskat)abstract
- Objective. This study describes a new technique for measuring skin exposure to cutting fluids and evaluates the variability of skin exposure among machine operators performing cyclic (repetitive) work. Methods. The technique is based on video recording and subsequent analysis of the videotape by means of computer-synchronized video equipment. The time intervals at which the machine operator's hand was exposed to fluid were registered, and the total wet time of the skin was calculated by assuming different evaporation times for the fluid. The exposure of twelve operators with different work methods was analyzed in six different workshops, which included a range of machine types, from highly automated metal cutting machines (ie, actual cutting and chip removal machines) requiring operator supervision to conventional metal cutting machines, where the operator was required to maneuver the machine and manually exchange products. Results; the relative wet time varied between 0% and 100%. A significant association between short cycle time and high relative wet time was noted. However, there was no relationship between the degree of automatization of the metal cutting machines and wet time. Conclusions. The study shows that skin exposure to cutting fluids can vary considerably between machine operators involved in manufacturing processes using different types of metal cutting machines. The machine type was not associated with dermal wetness. The technique appears to give objective information about dermal wetness. A comment: This publication is a result of a cooperation between the authors at Chalmers University of Technology and Gothenburg University, i.e. between the Department of Transportation and the Department of Occupational Health and the Department of Sociology.
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| 4. |
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| 5. |
- Tillmar, Andreas O., et al.
(författare)
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Choosing supplementary markers in forensic casework
- 2014
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Ingår i: Forensic Science International-Genetics. - : Elsevier BV. - 1872-4973 .- 1878-0326. ; 13, s. 128-133
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Tidskriftsartikel (refereegranskat)abstract
- The vast majority of human familial identifications based on DNA end up with a well founded conclusion, normally using a standard set of genetic short tandem repeat (STR) loci. There are, however, a proportion of cases that show ambiguous results. For such occasions a number of different supplementary markers could be typed in order to gain further information. There are numerous markers available for such supplementary DNA typing, including STRs, deletion and insertion polymorphisms (DIPs), and single nucleotide polymorphisms (SNPs). The purpose of this work was to describe a precise method for decision making, aiming to aid the comparison of different sets of markers for different case scenarios in order to find the most efficient set for routine casework. Comparisons are based on a particular function relating the expected additional value of information from new data to the amount of information already obtained from initial data. The function can be computed approximately by approximating likelihood-based error rates using simulation. In this paper we focused on paternity investigations, more specifically the use of supplementary markers in cases where a smaller number of genetic inconsistencies make the matter inconclusive. We applied the method to a comparison of three different kits: Investigator HDplex (STRs), Investigator DIPplex (DIPs), and the SNPforID-plex (SNPs) to study their efficiencies in gaining information in different case scenarios involving various alternative relationships between the tested man and the tested child. We show that the Investigator HDplex was the most efficient set of supplementary markers for the standard paternity case. However, for paternity cases with a close relative being the alternative father, the Investigator HDplex and the SNPforID-plex showed similar patterns in their ability to deliver a well-founded conclusion. The Investigator DIPplex was the least efficient set.
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| 6. |
- Larsson, Simon B., et al.
(författare)
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Self-reported symptom severity, general health, and impairment in post-acute phases of COVID-19: retrospective cohort study of Swedish public employees
- 2022
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Ingår i: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 12:1
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Tidskriftsartikel (refereegranskat)abstract
- This study aimed to examine current symptom severity and general health in a sample of primarily non-hospitalized persons with polymerase chain reaction (PCR) confirmed COVID-19 in comparison to PCR negative controls. During the first quarter of 2021, we conducted an online survey among public employees in West Sweden, with a valid COVID-19 test result. The survey assessed past-month severity of 28 symptoms and signs, self-rated health, the WHO Disability Assessment Schedule (WHODAS) 2.0 and illness severity at the time of test. We linked participants' responses to their SARS-CoV-2 PCR tests results. We compared COVID-19 positive and negative participants using univariable and multivariable regression analyses. Out of 56,221 invited, 14,222 (25.3%) responded, with a response rate of 50% among SARS-CoV-2 positive individuals. Analysis included 10,194 participants (86.4% women, mean age 45 years) who tested positive 4-12 weeks (N = 1425; subacute) and > 12 weeks (N = 1584; postcovid) prior to the survey, and 7185 PCR negative participants who did not believe that they had had COVID-19. Symptoms were highly prevalent in all groups, with worst symptoms in subacute phase participants, followed by postcovid phase and PCR negative participants. The most specific symptom for COVID-19 was loss of smell or taste. Both WHODAS 2.0 score and self-rated health were worst in subacute participants, and modestly worse in postcovid participants than in negative controls. Female gender, older age and acute illness severity had larger effects on self-rated health and WHODAS 2.0 score in PCR positive participants than in PCR negative. Studies with longer follow-up are needed to determine the long-term improvement after COVID-19.
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| 7. |
- Marcheschi, Elizabeth, 1980, et al.
(författare)
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To come home after a stroke: patients' early experiences of health and recovery in their home settings
- 2018
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Healthcare systems and services for stroke patients are increasingly performed within home settings where both, people with moderate and severe disability can receive care. However, at present little knowledge is available in regard to early stroke phases and how the interaction with the physical environment of home settings might affect rehabilitation outcomes. The aim of this work was thus, to increase our understanding in regard to the interplay between home settings and people’s rehabilitation process, a month after stroke onset. A cross-sectional interdisciplinary investigation was conducted using validated measures in face-to-face interviews and by observing the participants’ interactions with their home settings. People with stroke (N = 16) that had a mild disability, and cognitive and communicative abilities to participate in an interview of approximately 2 hours, were recruited in the study and their data was collected within 4 to 7 weeks after stroke onset. Information was collected in regard to their experience of the physical and social home environment, their attachment to place, self-efficacy and the quality of continuity of care from the hospital to the home. Moreover, data about their recovery and overall health were collected with, Stroke Impact Scale and the EQ-5D. Preliminary results suggests the existence of a relation between recovery levels, self-efficacy and the perceived quality of the physical environment of home settings. More detailed results and their implication for early rehabilitation phases of stroke patients within home settings will be discussed.
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| 8. |
- Religa, D., et al.
(författare)
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SveDem, the Swedish Dementia Registry - A tool for improving the quality of diagnostics, treatment and care of dementia patients in clinical practice
- 2015
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Ingår i: PLoS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 10:2
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Tidskriftsartikel (refereegranskat)abstract
- Background: The Swedish Dementia Registry (SveDem) was developed with the aim to improve the quality of diagnostic work-up, treatment and care of patients with dementia disorders in Sweden. Methods: SveDem is an internet based quality registry where several indicators can be followed over time. It includes information about the diagnostic work-up, medical treatment and community support (www.svedem.se). The patients are diagnosed and followed-up yearly in specialist units, primary care centres or in nursing homes. Results: The database was initiated in May 2007 and covers almost all of Sweden. There were 28 722 patients registered with a mean age of 79.3 years during 2007-2012. Each participating unit obtains continuous online statistics from its own registrations and they can be compared with regional and national data. A report from SveDem is published yearly to inform medical and care professionals as well as political and administrative decision-makers about the current quality of diagnostics, treatment and care of patients with dementia disorders in Sweden. Conclusion: SveDem provides knowledge about current dementia care in Sweden and serves as a framework for ensuring the quality of diagnostics, treatment and care across the country. It also reflects changes in quality dementia care over time. Data from SveDem can be used to further develop the national guidelines for dementia and to generate new research hypotheses.
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| 9. |
- Roos, John Magnus
(författare)
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Personality and E-shopping : Insights from a Nationally Representative Study
- 2019
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Ingår i: Digital Transformation and Global Society. - Cham : Springer. - 9783030378578 - 9783030378585 ; 1038 CCIS, s. 257-267
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Bokkapitel (refereegranskat)abstract
- According to previous research, a high degree of Openness and Neuroticism, and a low degree of Agreeableness are personality determinants of e-shopping. This study aims to explore the relationship between the Five-factor model of personality (i.e. Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism) and e-shopping in a Swedish context. In a nationally representative sample, a questionnaire was distributed to 3400 citizens. The response rate was 53 percentage (N = 1812). The questionnaire included measures of the Five-factor model of personality (BFI-ten) and e-shopping. Multiple regression analyses were conducted to test if the Five-factor model of personality predicted e-shopping. The dependent variable was self-reported frequencies of e-shopping during the last 12 months. The first analysis showed that Openness is predicting e-shopping. However, this effect disappeared, when age, educational attainment and income were controlled for. Our conclusion is that the Five-factor model of personality is a poor predictor of e-shopping and that e-shopping frequencies are unrelated to the personality of internet users. Methodological limitations are discussed, for instance the use of a single-item for measuring e-shopping and a short-scale for measuring personality. There are difficulties comparing our findings with previous findings, since the concepts personality and e-shopping have not been defined uniformly. The analyses revealed significant variation in definitions, measurements and methodologies. Caution should also be taken in generalizing the present results to other countries and other time periods. © 2019, Springer Nature Switzerland AG.
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| 10. |
- Pettersson, Cecilia, 1963, et al.
(författare)
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Enablers and Barriers in the Physical Environment of Care for Older People in Ordinary Housing: A Scoping Review
- 2020
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Ingår i: Journal of Housing for the Elderly. - : Informa UK Limited. - 0276-3893 .- 1540-353X. ; 34:3, s. 332-350
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Forskningsöversikt (refereegranskat)abstract
- Our aim was to explore enablers and barriers in ordinary housing for older people in care. We systematically searched Scopus, Web of Science, and Google Scholar for relevant published research and gray material. The search resulted in a final sample of eight publications, four of which focused on accessibility for older people with dementia. Thematic analysis resulted in two themes: safety and accessibility. Future studies should focus on modifications to ordinary housing to achieve safe and comfortable environments for people who want to age in place and those who provide them with care.
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