| 1. |
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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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| 3. |
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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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| 11. |
- Karlsson, Toni, 1984, et al.
(författare)
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Investigations into Recycling Zinc from Used Metal Oxide Varistors via pH Selective Leaching: Characterization, Leaching, and Residue Analysis
- 2015
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Ingår i: Scientific World Journal. - : Hindawi Limited. - 2356-6140 .- 1537-744X. ; 2015
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Tidskriftsartikel (refereegranskat)abstract
- Metal oxide varistors (MOVs) are a type of resistor with significantly nonlinear current-voltage characteristics commonly used in power lines to protect against overvoltages. If a proper recycling plan is developed MOVs can be an excellent source of secondary zinc because they contain over 90 weight percent zinc oxide. The oxides of antimony, bismuth, and to a lesser degree cobalt, manganese, and nickel are also present in varistors. Characterization of the MOV showed that cobalt, nickel, and manganese were not present in the varistor material at concentrations greater than one weight percent. This investigation determined whether a pH selective dissolution (leaching) process can be utilized as a starting point for hydrometallurgical recycling of the zinc in MOVs. This investigation showed it was possible to selectively leach zinc from the MOV without coleaching of bismuth and antimony by selecting a suitable pH, mainly higher than 3 for acids investigated. It was not possible to leach zinc without coleaching of manganese, cobalt, and nickel. It can be concluded from results obtained with the acids used, acetic, hydrochloric, nitric, and sulfuric, that sulfate leaching produced the most desirable results with respect to zinc leaching and it is also used extensively in industrial zinc production.
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| 12. |
- Kjellsdotter Ivert, Linea, et al.
(författare)
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Taktisk planering inom återvinningsbranschen – en fallstudie hos Ragn-Sells
- 2017
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Återvinningsindustrin samlar in och behandlaravfall som återvinns och säljs till kunder av återvunnen råvara. Att hålla ihopdessa aktiviteter är en utmanande uppgift bland annat på grund av hög variationkring kvantitet och kvalitet på det avfall som samlas in, osäkerheter kringefterfrågan av sekundär råvara, oklara prioriteringar kring tjänsten att samlain och behov att sälja produkter, samt en hög decentraliseringsgrad avverksamheten. För att erhålla ett högt resursutnyttjande och ta sundainvesterings-, sälj-, marknadsförings-, produktion- och logistikbeslut är detviktigt att skapa en samsyn kring vilken efterfrågan som finns på ett litelängre perspektiv och balansera denna mot tillgängliga resurser, vilket ärsyftet med taktisk planering. Det saknas dock kunskap och erfarenhet kringtaktisk planering i återvinningsindustrin. Syftet med studien är att fylla endel av detta kunskapsgap genom att ta fram en taktisk planeringsprocess med tillhörandeIT-verktyg för återvinningsföretaget Ragn-Sells. Studien har genomförts i närasamarbete mellan Ragn-Sells, systemutvecklaren Optimity och forskare inomlogistik och produktionsplanering. Planeringsprocessen utgörs av två parallellamånadsprocesser inom de två marknadsområden som är ansvariga för insamlingen avavfall, och koordineras vid ett gemensamt kvartalsmöte. En aktivitetsplaninnehållande vem som ska göra vad och när i processen samt mötesagendor hartagits fram. IT-verktyget stöttar i generering av en statistisk prognos ochframtagning av en nära optimal produktionsplan med avseende påkapacitetsutnyttjande och leveranssäkerhet. Planeringsprocessen ochIT-verktyget testades i form av ett rollspel där ett månadsmöte och ettkvartalsmöte iscensattes. En viktig slutsats från studien är attåtervinningsindustrins verksamhet befinner sig någonstans mellan ”projekt” och”tillverkning-mot-lager” och att det gäller att försöka minska osäkerheterkring den projektorienterade delen. Därför bör taktisk planering inomåtervinningsindustrin fokusera på att balansera nya anbud och utfasningar avkontrakt med tillgängliga resurser. I fortsatta studier är det intressant attinkludera övriga värdeadderande aktiviteter, förutom insamlingen, i planeringen.
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| 13. |
- Kjellsdotter, Linea, 1980, et al.
(författare)
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Taktisk planering inom återvinningsbranschen – en fallstudie hos Ragn-Sells
- 2017
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Återvinningsindustrin samlar in och behandlar avfall som återvinns och säljs till kunder av återvunnen råvara. Att hålla ihop dessa aktiviteter är en utmanande uppgift bland annat på grund av hög variation kring kvantitet och kvalitet på det avfall som samlas in, osäkerheter kring efterfrågan av sekundär råvara, oklara prioriteringar kring tjänsten att samla in och behov att sälja produkter, samt en hög decentraliseringsgrad av verksamheten. För att erhålla ett högt resursutnyttjande och ta sunda investerings-, sälj-, marknadsförings-, produktion- och logistikbeslut är det viktigt att skapa en samsyn kring vilken efterfrågan som finns på ett lite längre perspektiv och balansera denna mot tillgängliga resurser, vilket är syftet med taktisk planering. Det saknas dock kunskap och erfarenhet kring taktisk planering i återvinningsindustrin. Syftet med studien är att fylla en del av detta kunskapsgap genom att ta fram en taktisk planeringsprocess med tillhörande IT-verktyg för återvinningsföretaget Ragn-Sells. Studien har genomförts i nära samarbete mellan Ragn-Sells, systemutvecklaren Optimity och forskare inom logistik och produktionsplanering. Planeringsprocessen utgörs av två parallella månadsprocesser inom de två marknadsområden som är ansvariga för insamlingen av avfall, och koordineras vid ett gemensamt kvartalsmöte. En aktivitetsplaninnehållande vem som ska göra vad och när i processen samt mötesagendor har tagits fram. IT-verktyget stöttar i generering av en statistisk prognos och framtagning av en nära optimal produktionsplan med avseende på kapacitetsutnyttjande och leveranssäkerhet. Planeringsprocessen och IT-verktyget testades i form av ett rollspel där ett månadsmöte och ett kvartalsmöte iscensattes. En viktig slutsats från studien är att återvinningsindustrinsverksamhet befinner sig någonstans mellan ”projekt” och ”tillverkning-mot-lager” och att det gäller att försöka minska osäkerheter kring den projektorienterade delen. Därför bör taktisk planering inom återvinningsindustrin fokusera på att balansera nya anbud och utfasningar av kontrakt med tillgängliga resurser. I fortsatta studier är det intressant att inkludera övriga värdeadderande aktiviteter, förutom insamlingen, i planeringen.
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| 14. |
- Lundqvist, Daniel, 1981-, et al.
(författare)
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Managers social support: Facilitators and hindrances for seeking support at work
- 2018
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Ingår i: Work. - : IOS Press. - 1051-9815 .- 1875-9270. ; 59:3, s. 351-365
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Previous research has shown that social support is important for health and performance at work, but there is a lack of research regarding managers social support at work, and if it needs to be improved. OBJECTIVE: To investigate managers perception of work-related social support, and facilitators and hindrances that influence their seeking of social support at work. METHODS: Semi-structured interviews with sixty-two managers in two Swedish organizations. RESULTS: Work-related support, which strengthened their managerial image of being competent, was sought from sources within the workplace. Sensitive and personal support, where there was a risk of jeopardizing their image of being competent, was sought from sources outside the workplace. Access to arenas for support (location of the workplace, meetings, and vocational courses) and the managerial role could facilitate their support-seeking, but could also act as hindrances. Because attending different arenas for support were demanding, they refrained from seeking support if the demands were perceived as too high. CONCLUSIONS: Different supportive sources are distinguished based on what supportive function they have and in which arenas they are found, in order to preserve the confidence of the closest organization and to maintain the image of being a competent and performing manager.
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| 15. |
- Persson, Ylva, et al.
(författare)
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Effects of intra-genotypic variation, variance with height and time of season on BVOC emissions
- 2016
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Ingår i: Meteorologische Zeitschrift. - : Schweizerbart. - 1610-1227 .- 0941-2948. ; 25:4, s. 377-388
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Tidskriftsartikel (refereegranskat)abstract
- Biogenic Volatile Organic Compounds (BVOCs) are trace gases other than CO2 and CH4 produced and emitted by the biosphere, where the amounts released depend on climatic factors such as temperature and solar irradiation. However, interpretation of leaf-level measurements is currently hampered by factors such as large within-genotypic variability, measurement height and time in the season. A campaign was performed between June and August in 2013 in Taastrup, Denmark to study these uncertainties. BVOC emissions were measured from leaves and needles at heights of 2 m, 5.5m and 12.5m in the canopy and for seven trees; four Norway spruces (Picea abies) of which two trees had a budburst approximately a week before the other two, two English oaks (Quercus robur) and one European beech (Fagus sylvatica). Differences in chemical composition and emission strength between June and August were observed between the different trees. English oak's main compound isoprene increased from 62-74%of the total emission in June to approximately 97% in August, which is linked to leaf development over the summer season. The total emission from all measured spruce trees decreased from July to August, but without a loss in the diversity of emitted compounds. The trees showed indications of drought stress as there was a period without precipitation lasting 21 days during the study. There were no differences in emission patterns within all of the measured Norway spruces. For measurement height, there was only a significant difference in emission pattern for European beech as the top of the canopy emitted 7-9 times more in relation to lower canopy levels. Our results suggest there was little within-genotype variability and the wide spacing between trees had an influence on the individual emission patterns. These results are important in order to understand the significance of within-genotypic variation, canopy height and seasonal development in relation to the emission patterns of the selected species. Furthermore, it will provide helpful insights for modelers who wish to improve their emission estimates.
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| 16. |
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| 17. |
- Ranjbar, Vania, et al.
(författare)
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Chronic obstructive pulmonary disease mobile care: A participant-focussed and human rights-based evaluation
- 2015
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Ingår i: Health Services Management Research. - : SAGE Publications. - 0951-4848 .- 1758-1044. ; 28:3-4, s. 58-66
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Tidskriftsartikel (refereegranskat)abstract
- To reduce healthcare costs associated with chronic obstructive pulmonary disease (COPD) and vacate hospital beds without compromising patient satisfaction with healthcare, alternatives for hospital treatment have been developed; however, few studies have qualitatively investigated patients’ experiences of these alternatives. This study aimed, first, to explore patients’ experiences of Sweden’s first COPD mobile care programme through semi-structured interviews with twelve patients, and, second, to evaluate if a human rights-based analysis could provide additional information. Data were, first, analysed using latent content analysis, resulting in three themes: security (effective follow-up, positive encounters), availability (convenience), and suggestions for improvement (increased amount of personnel, longer enrolment period, continued follow-up upon discharge from the programme). Security and availability contributed to high acceptability of and satisfaction with the programme; COPD mobile care can, thus, constitute an acceptable alternative to inpatient care for COPD patients. Findings were then further analysed using the AAAQ framework (availability, accessibility, acceptability, and quality) to determine how the COPD mobile care programme corresponds to the Right to health. This human rights-based analysis enabled the uncovering of certain groups being excluded from the programme, thereby generating valuable information for improving the programme by ensuring equal access and care for all COPD patients
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| 18. |
- Vesterlund, Anna, 1980, et al.
(författare)
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Characterization of strong 241Am sources
- 2015
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Ingår i: Applied Radiation and Isotopes. - : Elsevier BV. - 0969-8043 .- 1872-9800. ; 99, s. 162-167
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Tidskriftsartikel (refereegranskat)abstract
- Gamma ray spectra of strong 241Am sources may reveal information about the source composition as there may be other radioactive nuclides such as progeny and radioactive impurities present. In this work the possibility to use gamma spectrometry to identify inherent signatures in 241Am sources in order to differentiate sources from each other, is investigated. The studied signatures are age, i.e. time passed since last chemical separation, and presence of impurities. The spectra of some sources show a number of Doppler broadened peaks in the spectrum which indicate the presence of nuclear reactions on light elements within the sources. The results show that the investigated sources can be differentiated between by age and/or presence of impurities. These spectral features would be useful information in a national nuclear forensics library (NNFL) in cases when the visual information on the source, e.g. the source number, is unavailable.
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| 19. |
- Wang, Min, et al.
(författare)
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Seasonal variation in biogenic volatile organic compound (BVOC) emissions from Norway spruce in a Swedish boreal forest
- 2017
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Ingår i: Boreal Environment Research. - 1239-6095. ; 22, s. 353-367
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Tidskriftsartikel (refereegranskat)abstract
- Terpene emissions from the top-canopy layer (at 20 m) of one 118-year-old Norway spruce tree were measured between June and September 2013 using a branch chamber. Total terpene emissions varied from 0.05 to 332.5 μg gdw -1 h-1 with a peak in August. Monoterpenes dominated throughout the summer and on average accounted for 65% of the total terpene mass, followed by sesquiterpenes (29%) and isoprene (6%). The values obtained with an optimized hybrid model, assuming the partitioning of monoterpene emissions from both de novo synthesis and storage structures, were in good agreement with the observed emissions (Pearson’s r = 0.94) at the branch level. De novo monoterpene emissions were found to dominate in all campaigns (> 50%) with almost 100% in June. The highest standardized (30 °C, 1000 μmol photons m-2 s-1) monoterpene emission rate was 210.3 μg gdw -1 h-1 in August, followed by that in June (68.8 μg gdw -1 h-1). Therefore, both de-novo-synthesis and long-term observations that include seasonal variations are needed for accurately upscaling terpene emissions.
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