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- Dahlgren, Eva, et al.
(författare)
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Sertoli-Leydig cell tumour in a postmenopausal woman showing all facets of the insulin resistance syndrome (IRS)
- 2005
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Ingår i: Ups J Med Sci. - 0300-9734. ; 110:3, s. 233-6
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Tidskriftsartikel (refereegranskat)abstract
- Sertoli-Leydig cell tumours are rare sex stromal tumours with an incidence of < 0.5% of all ovarian tumours. Most frequently this tumour occurs in young women with a history of amenorrhoea, hirsutism and lowered pitch. Here, we report on a woman with IRS, postmenopausal virilization and increased testosterone levels due to a Sertoli-Leydig cell tumour. This is the first case to suggest an association between IRS and Sertoli-Leydig cell tumours. Furthermore, we highlight the difficulties in detecting this ovarian tumour with sonography.
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| 6. |
- Jansson, Anders, et al.
(författare)
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Bridging the gap between analysis and design : Improving existing driver interfaces with tools from the framwork of cognitive work analysis
- 2006
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Ingår i: Cognition, Technology & Work. - : Springer Science and Business Media LLC. - 1435-5558 .- 1435-5566. ; 8:1, s. 41-49
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Tidskriftsartikel (refereegranskat)abstract
- Two studies of train driving are presented, both within the framework of cognitive work analysis. In the first study, the modelling tool abstraction–decomposition space is adapted to routine conditions, making the analysis more representative for normal procedures. A major contribution to these analyses was the use of the method for ‘collegial verbalisation’. One particular advantage with this method over other verbalisation methods is that it supplies the analysts with data that contain much more information, but not at the expense of being more subjective. On the contrary, this method produces think-aloud protocols from video-recordings that do not have to be interpreted by the researcher. From these analyses, it was possible to distinguish information that is an intrinsic part of the train driver task from information that is dependent on the configuration and design of the current support system. The analyses show that the driver works in three rather separate time intervals with a long-range, a short-term and an immediate sense of perspective. The driver switches between these while travelling between two stations. Based on these behaviour-shaping constraints, a prototype of a planning area of a driver interface was developed, making feed-forward planning possible for the driver. Four design iterations were completed, using a user-centred system design (UCSD) approach. Early tests show that the planning area of the interface supports the feed-forward decision strategy used by drivers who prefer an active driving style. However, the driver group also made substantial changes in the design, indicating that UCSD is an efficient tool in order to capture user competencies, and to bridge the gap between analysis and design.
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| 7. |
- Jansson, Anders, et al.
(författare)
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Trafiksäkerhet och informationsmiljö i tågförarsystemet. Litteraturöversikt och olycksfallsanalyser
- 1999
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This literature survey focuses on studies of the train driver system and its connections to other parts of the larger train traffic system. The main part of the studies concern Swedish conditions, but other references are included as well.In the first part, different ways of analysing accidents are discussed, including organisational aspects. In the second part, research results from different areas, all assumed to be relevant to the train driver task, are aggregated into a body of knowledge about the train driver system. Comparisons are made between the train driver task and other operator tasks. Further, the effects of a higher degree of automation are discussed.The task of driving a train is modelled as a dynamic decision task, where the driver's mental representation of the technical system and the optic flow of information are assumed to be important parts of the train driver task.In the last part of the literature survey, the content of 40 accident reports is discussed. Further, an analysis and a classification of Swedish train accidents are made by using CREAM (Hollnagel, 1998). The content of the reports, as well as the CREAM-method are evaluated, and different classification criteria are discussed.
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| 9. |
- Kecklund, Lena, et al.
(författare)
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The TRAIN-project: Effects of Organizational Factors, Automatic Train Control, Work Hours, and Environment: Suggestions for Safety-Enhancing Measures
- 2003
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Ingår i: Proceedings of the Human Factors and Ergonomic Society, 47th Annual Meeting. ; , s. 1835-1839
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Konferensbidrag (refereegranskat)abstract
- The purpose of the TRAIN project was to describe and analyse the train drivers information environment, working hours, work situation and work environment and their effect on drivers' behaviour and the train driver system safety as well as to propose safety enhancing measures. The results indicate several problems of significance to the train driver system safety, which have been grouped into three main areas; organizational support functions, information environment including cognitive ergonomics and ATC and also working hours, work situation and work environment.
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| 10. |
- Olsson, Eva, et al.
(författare)
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Lokförarens informationsmiljö och ATC. Ett användarperspektiv
- 2001
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Syftet med TRAIN-projektet var att utvärdera de trafiksäkerhetsmässiga effekterna av förarens informationsmiljö och arbetssituation. I denna rapport redovisas resultaten från den enkätundersökning som under hösten 1999 som undersökte lokförarens informationsmiljö med särskilt fokus på användningen av ATC-systemet. En sammanfattande bild av lokförarens arbete visar att en viktig uppgift är att samla in och integrera information från olika informationskällor för en säker och punktlig körning. ATC är en viktig informationskälla vid körning av både pendeltåg och X2. Var man hämtar sin information beror i viss utsträckning på fordon och typ av arbetsuppgift. Förarna ansåg att ATC var ett mycket viktigt hjälpmedel och stöd i körningen särskilt under perioder av trötthet och försämrad uppmärksamhet. Det fanns dock en del brister med avseende på hur ATC presenterar information, hur olika funktioner i ATC utformats samt hur föraren och ATC-systemet samverkar. Den trafiksäkerhetsmässiga påverkan av dessa förhållanden kommenteras i rapporten. Sammantaget kan man dock konstatera att införandet av ATC i Sverige inneburit en väsentlig ökning av trafiksäkerhetsnivån.
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