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| 2. |
- Chen, Lingjing, et al.
(författare)
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Work Loss Duration and Predictors Following Rectal Cancer Treatment among Patients with and without Prediagnostic Work Loss
- 2016
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Ingår i: Cancer Epidemiology, Biomarkers and Prevention. - 1055-9965 .- 1538-7755. ; 25:6, s. 987-994
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Tidskriftsartikel (refereegranskat)abstract
- Background: The number of working-age rectal cancer survivors is increasing due to early detection and improved treatment. However, work loss duration and predictors among them have not been studied thoroughly. Methods: We identified 3,438 patients with stage I-III rectal cancer, 18 to 61 years of age in the Swedish Colorectal Cancer Register 1996-2009. Information on work loss due to sick leave or disability pension was collected from 2 years before diagnosis to 5 years after (until December 31st, 2013). Incidence rate ratios (IRR) of work loss were estimated in a negative binominal model by clinical characteristics for the 1st and 2nd-5th years after diagnosis. Patients were stratified by prediagnostic work loss. Results: Patients without prediagnostic work loss (74%) experienced median 147 days (25th and 75th percentile: 55 and 281) of work loss during the 1st year after diagnosis. Work loss rates (2nd-5th years) were significantly increased among relapse-free patients diagnosed in stage III [IRR = 1.92; 95% confidence interval (CI), 1.52-2.43], operated with abdominoperineal resection (IRR = 1.26; 95% CI, 1.03-1.56), and treated with neoadjuvant (chemo) radiotherapy (IRR = 1.46; 95% CI, 1.06-2.02). Patients with prediagnostic work loss (26%) experienced median 336 days (25th and 75th percentile: 183 and 365) of work loss during the 1st year, and rates did not vary clinically till 5 years. Conclusion: Without prediagnostic work loss, disease-and treatment-related factors could help identify rectal cancer patients in need of early interventions to facilitate return to work. Impact: Clinical awareness around prediagnostic and postdiagnostic work loss and individualized cancer rehabilitation programs should be emphasized among cancer survivors.
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| 4. |
- Fagerlind Ståhl, Anna-Carin, et al.
(författare)
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Associations between organisation of work, work conditions, work-relatedf low and performance: a multilevel analysis
- 2015
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- The aim of this study is to investigate how organisation of work in terms of sociotechnical characteristics and use of tools inspired by lean production, and psychosocial conditions at the workplace, are associated with work-related flow and performance.A questionnaire including questions concerning work organisation, psychosocial work conditions, work-related flow and self-rated performance was sent to employees in ten Swedish organisations; 4442 people (56%) responded. Multilevel logistic regression analyses were used in order to investigate organisation of work and work conditions in relation to work-related flow and performance. In addition, the association between work-related flow and performance was investigated.Our results show that a high degree of lean tool use in combination with a low degree of sociotechnical characteristics was negatively associated with work-related flow but positively associated with performance. When decision latitude, social capital, and innovative learning climate were included in the model, the association was no longer significant in relation to work-related flow, but remained and was strengthen in relation to performance. Work-related flow had a positive association with performance.The conclusion is that work-related flow and work conditions that enable individual and collective skill use are important for increased performance. When lean tools are used to a high degree, good decision latitude, social capital and innovative learning climate buffer negative effects on health, and increase performance.
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| 5. |
- Fagerlind Ståhl, Anna-Carin, et al.
(författare)
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Lean production tools and decision latitude enable conditions for innovative learning in organizations : a multilevel analysis
- 2015
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Ingår i: Applied Ergonomics. - : Elsevier. - 0003-6870 .- 1872-9126. ; 47, s. 285-291
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Tidskriftsartikel (refereegranskat)abstract
- The effect of lean production on conditions for learning is debated. This study aimed to investigate how tools inspired by lean production (standardization, resource reduction, visual monitoring, housekeeping, value flow analysis) were associated with an innovative learning climate and with collective dispersion of ideas in organizations, and whether decision latitude contributed to these associations. A questionnaire was sent out to employees in public, private, production and service organizations (n = 4442). Multilevel linear regression analyses were used. Use of lean tools and decision latitude were positively associated with an innovative learning climate and collective dispersion of ideas. A low degree of decision latitude was a modifier in the association to collective dispersion of ideas. Lean tools can enable shared understanding and collective spreading of ideas, needed for the development of work processes, especially when decision latitude is low. Value flow analysis played a pivotal role in the associations.
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| 6. |
- Fagerlind Ståhl, Anna-Carin, 1982-
(författare)
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Live long and prosper : Health-promoting conditions at work
- 2015
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The aim of this thesis is to contribute with knowledge concerning health-promoting conditions at work, and to investigate how individual, workplace and organisational conditions are interrelated. In the thesis, work-related flow, i.e. an experience of motivation, absorption and work enjoyment, is used as a holistic notion of occupational health. In Paper I, work-related flow is investigated in relation to decision latitude, social capital and an innovative learning climate at work. Paper II investigates whether the use of tools inspired by lean production, such as standardisation and value stream mapping, is positively associated with conditions for innovative learning in organisations. The aim of Paper III is to identify conditions for health and performance in organisation and at work; further, to investigate the association between work-related flow and performance. Paper IV reports on a longitudinal investigation of workrelated flow in relation to lean tool use and conditions at the workplace. The empirical material is based on data from 10 organisations, including 4442 employees. Papers I-III are cross-sectional, whereas Paper IV is longitudinal. Papers II-IV utilise multilevel analyses.The results show that decision latitude, social capital and an innovative learning climate are associated with an increase in work-related flow (Papers I, III & IV), and with performance (Paper III). Individuals’ decision latitude enables an increased benefit from the social capital and innovative learning climate at work (Paper I). The effect of tools inspired by lean production on work-related flow (Papers III & IV), and on conditions for innovative learning (Paper II) differs, depending on which tools are used, and on workplace conditions. These tools enable innovative learning mainly where decision latitude is low (Paper II), and it is primarily the lean tool value stream mapping which has the potential to create an arena for innovative learning (Paper II) and work-related flow (Paper IV).It is concluded that the individual is embedded in a social work context that has the potential to strengthen the ability to act with motivation, absorption and enjoyment. In order to utilise collective healthpromoting conditions at work, individuals need to have authority to make their own decisions and use their skills. The effect of tools inspired by lean production depends on the specific tools that are used, and on individuals’ decision latitude at work. Their potential to enable innovative learning is most evident for employees who have few opportunities for autonomous decision-making and skill use in their work. For those with a high degree of decision latitude, the use of lean tools has a smaller effect. Work-related flow may in itself serve as a resource that improves performance and increases engagement in health-promoting work conditions. In order to promote health as well as performance, work needsto be organised so that employees have opportunities to decide over their own work, and utilise their skills, individually and collectively within the workgroup.
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| 7. |
- Fagerlind Ståhl, Anna-Carin, et al.
(författare)
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The effect of lean tool use and work conditions on employee health : a longitudinal multilevel study
- 2015
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Objectives: Although lean production is an increasingly common approach to increase the efficiency of organisations, its effect on employee health is not clear. This longitudinal study investigates the effect of lean tool use and work conditions on work-related flow. Flow is a measure of health that reflects the experience of intrinsic motivation, absorption and work enjoyment.Methods: A questionnaire was sent to employees in seven organisations on two occasions with an interval of two years (n =1722). Multilevel linear regression analyses were used in order to investigate the association between the use of lean tools (i.e. standardisation, value stream mapping, visual monitoring, housekeeping and resource reduction), decision latitude, social capital, and innovative learning climate at baseline, and work-related flow at follow-up.Results: In multivariate analyses, adjusted for flow at baseline, use of lean tools was positively associated with work-related flow at follow-up. When the tools were investigated separately, only value stream mapping remained significant after adjustment for work conditions and flow at baseline. Social capital and decision latitude were positively associated with flow at follow-up. Flow at baseline and follow-up were strongly associated.Conclusions: The extent to which lean tool use has an effect on employee health depends on which tools are used. Work conditions that support learning, such as decision latitude and social capital, are associated with a longitudinal increase in the experience of work-related flow, and are important for gaining health-promoting benefits from the use of lean tools.
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| 8. |
- Gustafsson, Anna, 1980, et al.
(författare)
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Evaluation of High-Temperature Chlorination as a Process for Separation of Copper, Indium and Gallium from CIGS Solar Cell Waste Materials
- 2015
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Ingår i: Separation Science and Technology. - : Informa UK Limited. - 1520-5754 .- 0149-6395. ; 50:1, s. 1-9
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Tidskriftsartikel (refereegranskat)abstract
- CIGS (copper indium gallium diselenide) is a semiconductor used in high efficiency thin film solar cells. Several of these elements are considered to be fairly rare and thus expensive. In order to ensure future supply of the metals, an efficient recycling process for CIGS is needed. We have previously published a process for the separation of high purity selenium from CIGS solar cell waste materials. In the present paper we evaluate the possibility of using high-temperature chlorination to separate copper, indium, and gallium from the residue obtained in the selenium separation process. The chlorination agents used were chlorine gas, hydrogen chloride gas, and ammonium chloride. The goal was to use different temperatures to separate the metal chlorides formed. Ammonium chloride was shown to be the most promising chlorination agent for future process optimization.
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| 9. |
- Gustafsson, Anna, 1980, et al.
(författare)
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Investigation of an electrochemical method for separation of copper, indium, and gallium from pretreated cigs solar cell waste materials
- 2015
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Ingår i: The Scientific World Journal. - : Hindawi Limited. - 1537-744X .- 2356-6140. ; 2015
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Tidskriftsartikel (refereegranskat)abstract
- Recycling of the semiconductor material copper indium gallium diselenide (CIGS) is important to ensure a future supply of indium and gallium, which are relatively rare and therefore expensive elements. As a continuation of our previous work, where we recycled high purity selenium from CIGS waste materials, we now show that copper and indium can be recycled by electrodeposition from hydrochloric acid solutions of dissolved selenium-depleted material. Suitable potentials for the reduction of copper and indium were determined to be -0.5 V and -0.9 V (versus the Ag/AgCl reference electrode), respectively, using cyclic voltammetry. Electrodeposition of first copper and then indium from a solution containing the dissolved residue from the selenium separation and ammonium chloride in 1 M HCl gave a copper yield of 100.1 ± 0.5% and an indium yield of 98.1 ± 2.5%. The separated copper and indium fractions contained no significant contamination of the other elements. Gallium remained in solution together with a small amount of indium after the separation of copper and indium and has to be recovered by an alternative method since electrowinning from the chloride-rich acid solution was not effective.
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| 10. |
- Gustafsson, Anna, 1980, et al.
(författare)
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Recycling of CIGS Solar Cell Waste Materials: Separation of Copper, Indium, and Gallium by High-Temperature Chlorination Reaction with Ammonium Chloride
- 2015
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Ingår i: Separation Science and Technology. - : Informa UK Limited. - 1520-5754 .- 0149-6395. ; 50:15, s. 2415-2425
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Tidskriftsartikel (refereegranskat)abstract
- Recycling of copper indium gallium diselenide (CIGS) solar cell materials is important to ensure future supply of indium and gallium. Our previous work includes recycling of selenium from CIGS materials and a scoping study on high-temperature chlorination for the separation of the remaining elements using different chlorination agents. In the present work we further develop high-temperature chlorination separation using ammonium chloride. The study showed that 97 wt% of the gallium and 93 wt% of the indium could be recovered at 260 and 340°C, respectively. The process resulted in good separation between gallium and copper while the indium content in the gallium and copper fractions were above the goal of 1 wt%.
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