15 results on '"Kostamo K"'
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2. Reasons for large annual yield fluctuations in wild arctic bramble (Rubus arcticus subsp. arcticus) in Finland
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Kostamo, K., Toljamo, A., Kokko, H., Karenlampi, S.O., and Rita, H.
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Rubus -- Physiological aspects ,Biological sciences - Abstract
Fluctuations in the yield of wild berries are markedly influenced by weather conditions. However, the cause--effect relationship is often poorly understood. Based on data spanning a 20-year period in Finland, we made an effort to elucidate the influence of different weather conditions on the yield of arctic bramble (Rubus arcticus L.). We analyzed the regression coefficients of various weather conditions in several regression models using the elaboration approach. Temperature accumulated in July had a positive effect on yield. Yield was negatively influenced by temperature accumulated during the previous summer, rainfall in the October of the previous year, and temperature accumulated in May of the same year. It is notable that the same weather conditions had a positive influence on yield of the same year whereas these conditions had a negative effect on the yield potential of the following year. Compared with traditional analysis methods, the elaboration approach provided a better understanding of the relationship between weather parameters and yield. The rarity of a good yield could be explained by the particular vulnerability of arctic bramble to the negative effects of weather conditions. Some of these factors could be controlled in field conditions when cultivating arctic bramble. Keywords: Rubus arcticus, arctic bramble, yield fluctuation, weather, elaboration. Les fluctuations du rendement des recoltes de baies sauvages sont fortement influencees par les conditions meteorologiques. Toutefois, la relation cause a effet est souvent mal comprise. [Angstrom] partir de donnees s'echelonnant sur une periode de 20 ans en Finlande, les auteurs ont voulu elucider l'influence de differentes conditions meteorologiques sur le rendement du framboisier arctique (Rubus arcticus L.). Ils ont analyse les coefficients de regression de differentes conditions meteorologiques par differents modeles de regression selon l'approche par elaboration. La temperature accumulee en juillet exercait un effet positif sur le rendement. Le rendement etait negativement influence par la temperature accumulee au cours de l'ete precedent, les precipitations d'octobre de l'annee precedente et la temperature accumulee en mai de la meme annee. Il est remarquable que des conditions de temperatures identiques exercaient une influence positive sur la recolte de la meme annee alors que ces conditions exercaient un effet negatif sur le rendement potentiel de l'annee suivante. Comparative-ment aux methodes d'analyse traditionnelles, l'approche par elaboration a permis de mieux comprendre la relation entre les parametres meteorologiques et le rendement. La rarete d'un bon rendement pourrait s'expliquer par la vulnerabilite particuliere du framboisier arctique aux effets negatifs des conditions meteorologiques. Certains de ces facteurs pourraient etre contr[eth]les sur le terrain lors de la culture de framboisiers arctiques. [Traduit par la Redaction] Mots-cles : Rubus arcticus, framboisier arctique, fluctuation du rendement, temperature, elaboration., Introduction Arctic bramble (Rubus arcticus subsp. arcticus L.) is an herbaceous plant native to subarctic Eurasia but it produces berries primarily between 62[degrees] and 66[degrees] northern latitude (Hulten 1971; Ryynanen [...]
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- 2018
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3. Control of downy mildew (Peronospora sparsa) in arctic bramble (Rubus arcticus ssp. arcticus)
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Kostamo, K., Toljamo, A., Palonen, P., Valkonen, J. P.T., Kärenlampi, S. O., and Kokko, H.
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- 2015
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4. Achieving Blue Growth and Environmental Objectives: Legal regulation of novel blue biomass solutions in the Baltic Sea
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Belinskij, A., Gamarena Gómez, T., Kostamo, K., Lähteenmäki-Uutela, A., Piiparinen, A., and Spilling, K.
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projektit ,ympäristö ,päätöksenteko ,rannikot ,tiede ,tutkimus ,biomassa (ekologia) ,meret ,biotalous - Published
- 2021
5. Promoting Sustainable Macroalgae Business
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Lähteenmäki-Uutela, A., Camarena Gómez, T., Kostamo, K., Belinskij, A., Piiparinen, J., Spilling, K., and Arvaniti, E.
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ekosysteemit (ekologia) ,rannat ,projektit ,merilevät ,rannikot ,makea vesi ,tiede ,tutkimus ,ranta-alueet ,makrolevät - Published
- 2021
6. Ferromanganese concretion bottoms as habitats and a renewable resource in the Baltic Sea
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Kotilainen, A T, primary, Kaskela, A M, additional, Alanen, U, additional, Kiviluoto, S, additional, Kontula, T, additional, Kostamo, K, additional, Kurvinen, L, additional, Sahla, M, additional, Sippo, A, additional, and Virtanen, E, additional
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- 2017
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7. Novel roles for nasal epithelium in the pathogenesis of chronic rhinosinusitis with nasal polyps
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Cornet, M.E., primary, Kostamo, K., additional, Rinia, A.B., additional, Zwinderman, A.H., additional, van Egmond, D., additional, de Groot, E.J.J., additional, Fokkens, W.J., additional, and van Drunen, C.M., additional
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- 2019
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8. Design of biodegradable cellulose filtration material with high efficiency and breathability.
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Ketoja JA, Saurio K, Rautkoski H, Kenttä E, Tanaka A, Koponen AI, Virkajärvi J, Heinonen K, Kostamo K, Järvenpää A, Hyry N, Heikkilä P, Hankonen N, and Harlin A
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- Humans, COVID-19 prevention & control, Polyethylene Glycols chemistry, Respiratory Protective Devices, Particle Size, SARS-CoV-2, Aerosols chemistry, Cellulose chemistry, Cellulose analogs & derivatives, Filtration methods, Nanofibers chemistry
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Using respiratory protective equipment is one of the relevant preventive measures for infectious diseases, including COVID-19, and for various occupational respiratory hazards. Because experienced discomfort may result in a decrease in the utilization of respirators, it is important to enhance the material properties to resolve suboptimal usage. We combined several technologies to produce a filtration material that met requirements set by a cross-disciplinary interview study on the usability of protective equipment. Improved breathability, environmental sustainability, and comfort of the material were achieved by electrospinning poly(ethylene oxide) (PEO) nanofibers on a thin foam-formed fabric from regenerated cellulose fibers. The high filtration efficiency of sub-micron-sized diethylhexyl sebacate (DEHS) aerosol particles resulted from the small mean segment length of 0.35 μm of the nanofiber network. For a particle diameter of 0.6 μm, the filtration efficiency of a single PEO layer varied in the range of 80-97 % depending on the coat weight. The corresponding pressure drop had the level of 20-90 Pa for the airflow velocity of 5.3 cm/s. Using a multilayer structure, a very high filtration efficiency of 99.5 % was obtained with only a slightly higher pressure drop. This opens a route toward designing sustainable personal protective media with improved user experience., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023. Published by Elsevier Ltd.)
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- 2024
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9. How do behavioral public policy experts see the role of complex systems perspectives? An expert interview study.
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Puukko S, Heino MTJ, Kostamo K, Saurio K, Sniehotta FF, and Hankonen N
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- Humans, Interviews as Topic, Male, Female, Public Policy
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Amidst the global momentum of behavioral insights (BI), there has been a shift from mostly nudge-based BI applications to systemic approaches. This is particularly pressing in public health, where interacting issues regularly produce unanticipated consequences. Regardless, little is known about adopting complex systems approaches in behavioral public policy. This study aims to capture current practices of international BI experts on the definition, application, drivers, and hindering factors in adopting complex systems approaches in public policy. Semi-structured individual expert interviews (n = 12) of international BI experts with extensive experience in educating, cooperating with, and/or advising public servants were analyzed with inductive content analysis. While the working definition of BI aligned with published definitions, experts varied in their descriptions of complex systems approaches and its significance for public policy, including socioecological aspects, systematic BI use across policy stages, recognizing intertwined behavior, and lack of ready-made solutions. They emphasized the importance of systems approaches, identifying drivers (e.g. need for a broader focus) and hindrances (e.g. pressure for quick results). Embracing complex systems in behavioral public policy provides a holistic perspective, extending beyond simple nudges, sometimes presumed as universally applicable. While complexity perspectives would align with policymakers' worldview, applications require more work to tailor to local situations and to evaluate. Recognizing that, given their distinct expertise content, BI expertise can be quite different from complex systems expertise. The field would benefit from clear descriptions and specialized training for effective integration and advocacy for these approaches., (© The Author(s) 2024. Published by Oxford University Press on behalf of the Society of Behavioral Medicine.)
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- 2024
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10. Uptake of planning as a self-regulation strategy: Adolescents' reasons for (not) planning physical activity in an intervention trial.
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Renko E, Kostamo K, and Hankonen N
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- Adolescent, Humans, Motivation, Schools, Students, Exercise, Self-Control
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Objectives: Planning is an effective self-regulation strategy. However, little is known why some people take up planning and some do not. Such understanding would help interventions to promote planning. We investigated how adolescents explain their (non) use of planning for physical activity after an intervention., Methods: Qualitative content analysis was employed to investigate follow-up interviews (a purposeful sampling; n = 19 low-to-moderately active, vocational school students) of Let's Move It trial participants twice post-intervention: 6-8 weeks and 14 months post-baseline. In the intervention, planning was one of the key techniques used to promote PA., Results: We identified seven categories linked to reasons for (not) using planning. Most were related to feelings anticipated to result from planning. Action- and identity-related concerns were also raised. The reasons for planning were that the plan (1) helps to clarify what to do and to get things done, (2) strengthens the feeling of autonomy, (3) promotes a sense of progress, ability and control over one's PA. The reasons for not planning were that (having) a plan may (1) feel forced and like an unpleasant duty, (2) take away life's spontaneity and freedom, (3) result in anticipated annoyance and bad mood if one fails to enact the plan, or (4) be an effective strategy for others but not for the interviewee., Conclusions: Planning may not only link to behavioural control but also the sense of autonomy, and thus subsequent motivation. We suggest various strategies to promote planning, including challenging non-planner identity and harnessing social dimension of planning., (© 2022 The Authors. British Journal of Health Psychology published by John Wiley & Sons Ltd on behalf of British Psychological Society.)
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- 2022
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11. Causal Approach to Determining the Environmental Risks of Seabed Mining.
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Kaikkonen L, Helle I, Kostamo K, Kuikka S, Törnroos A, Nygård H, Venesjärvi R, and Uusitalo L
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- Environment, Metals, Minerals, Ecosystem, Mining
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Mineral deposits containing commercially exploitable metals are of interest for seabed mineral extraction in both the deep sea and shallow sea areas. However, the development of seafloor mining is underpinned by high uncertainties on the implementation of the activities and their consequences for the environment. To avoid unbridled expansion of maritime activities, the environmental risks of new types of activities should be carefully evaluated prior to permitting them, yet observational data on the impacts is mostly missing. Here, we examine the environmental risks of seabed mining using a causal, probabilistic network approach. Drawing on a series of expert interviews, we outline the cause-effect pathways related to seabed mining activities to inform quantitative risk assessments. The approach consists of (1) iterative model building with experts to identify the causal connections between seabed mining activities and the affected ecosystem components and (2) quantitative probabilistic modeling. We demonstrate the approach in the Baltic Sea, where seabed mining been has tested and the ecosystem is well studied. The model is used to provide estimates of mortality of benthic fauna under alternative mining scenarios, offering a quantitative means to highlight the uncertainties around the impacts of mining. We further outline requirements for operationalizing quantitative risk assessments in data-poor cases, highlighting the importance of a predictive approach to risk identification. The model can be used to support permitting processes by providing a more comprehensive description of the potential environmental impacts of seabed resource use, allowing iterative updating of the model as new information becomes available.
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- 2021
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12. Thematic analysis of acceptability and fidelity of engagement for behaviour change interventions: The Let's Move It intervention interview study.
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Palsola M, Renko E, Kostamo K, Lorencatto F, and Hankonen N
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- Female, Finland, Humans, Interviews as Topic, Longitudinal Studies, Male, Qualitative Research, Exercise, Health Behavior, Health Promotion methods, Schools
- Abstract
Objectives: Intervention participants' responses to and engagement with interventions are a key intermediate step between interventions and intended outcomes. The aim of this study was to qualitatively investigate crucial aspects of engagement, namely acceptability (experienced cognitive and emotional responses to the intervention), receipt (comprehension of intervention content), and skill enactment (skill performance in target settings), within the Let's Move It, a multi-component school-based physical activity intervention., Design: A longitudinal qualitative study embedded in a cluster-randomized trial, with individual interviews of purposefully sampled intervention participants immediately post-intervention (n = 21) and at 14 months (n = 14)., Methods: Semi-structured interviews were analysed using thematic analysis. Abductive coding process was taken to identify categories for themes., Results: The analysis resulted in 12 themes and 18 subthemes. Overall, participants reported perceived effectiveness of and affective attitude towards the intervention (acceptability) and understood the main messages and skills (receipt). For example, findings indicated comprehension of the non-judgemental nature and choice-providing messages of the intervention underpinned by self-determination theory. Despite reporting understanding how and why to perform the skills, not using them was a highlighted theme (skill enactment), particularly for self-regulatory techniques such as planning. Friends' role as key self-motivation technique was a prevalent theme. In the within-individual analysis, three different engager types were identified: positive, ambivalent, and negative., Conclusion: Identifying misunderstandings and difficulties in skill acquisition can help interpret main trial outcomes and inform further intervention optimization. This study provides an example of how to use thematic analysis to assess acceptability, receipt, and enactment in interventions., (© 2020 The Authors. British Journal of Health Psychology published by John Wiley & Sons Ltd on behalf of British Psychological Society.)
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- 2020
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13. Using the critical incident technique for qualitative process evaluation of interventions: The example of the "Let's Move It" trial.
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Kostamo K, Jallinoja P, Vesala KM, Araújo-Soares V, Sniehotta FF, and Hankonen N
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- Adolescent, Finland, Health Behavior, Humans, Qualitative Research, Sedentary Behavior, Exercise psychology, Health Promotion, Program Evaluation methods
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Rationale: Trials evaluating interventions to promote health behavior change rarely embed investigations that assess participant perceptions of crucial triggers of change., Objective: The "Let's Move It" (LMI) randomized trial evaluated a theorybased whole school system intervention aiming to increase physical activity (PA) of adolescents attending vocational schools. This article serves two main purposes: to describe how to use the critical incident technique (CIT) to conduct in qualitative process evaluation to identify events, including intervention elements, which LMI trial participants perceived to enable or support behavior change., Method: Semi-structured interviews (n = 34) conducted immediately post intervention from intervention and control arms were analyzed using the CIT., Results: The analysis identified altogether 39 critical incidents. Most of the critical incidents were related to the LMI in the intervention arm and the findings are partly aligned with the LMI intervention theory. Analysis revealed several critical incidents also in the control arm, including gaining insights regarding PA and mere measurement effects, illustrating challenges facing real-world trials., Conclusion: The CIT seems a promising approach for directing analysis towards potentially crucial intervention elements as described by the participants themselves, helping in focusing and limiting the text corpus to accounts relevant to change. Qualitative evaluations in trials may add valuable understanding to complement quantitative assessments., (Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.)
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- 2019
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14. Novel Treatment of Small-Cell Neuroendocrine of the Vagina.
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Kostamo K, Peart M, McKenzie N, Holloman C, Carlan SJ, Ge L, and Maksem J
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Background: Primary vaginal small-cell neuroendocrine carcinoma is an extremely rare and highly aggressive malignancy. Eighty-five percent of patients die within one year of diagnosis from metastatic disease despite multimodal therapy. Gene expression profiling of tumor tissue may be useful for treatment options for various malignancies., Case: A 34-year-old nulliparous woman was diagnosed with primary vaginal small-cell neuroendocrine carcinoma. Twenty weeks after the initial visit, she was diagnosed with recurrence and started on chemoradiation based on the results of gene expression profile of tumor tissue. She died 34 months after the initial visit and had a 14-month progression-free survival (PFS)., Conclusion: Gene expression profile of tumor tissue in the management of primary vaginal small-cell neuroendocrine carcinoma may be helpful in extending progression-free survival.
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- 2018
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15. Local and systemic proteolytic responses in chronic rhinosinusitis with nasal polyposis and asthma.
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Katainen E, Kostamo K, Virkkula P, Sorsa T, Tervahartiala T, Haapaniemi A, and Toskala E
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- Adolescent, Adult, Airway Remodeling physiology, C-Reactive Protein analysis, Enzyme-Linked Immunosorbent Assay, Female, Humans, Inflammation enzymology, Male, Middle Aged, Nasal Mucosa enzymology, Young Adult, Asthma enzymology, Matrix Metalloproteinases metabolism, Nasal Polyps enzymology, Rhinitis enzymology, Sinusitis enzymology
- Abstract
Background: Chronic rhinosinusitis with nasal polyposis (CRSwNP) and asthma coexist frequently and share similar features of inflammation and remodeling. Remodeling has become an important concept in the pathophysiology of asthma and CRSwNP. It happens early in the development of these diseases and is relatively resistant to treatments. The key enzymes responsible for remodeling are matrix metalloproteinases (MMPs). In this study we examined whether asthma and CRSwNP share similar MMP profiles., Methods: Nasal secretion and serum specimens of controls (19 subjects) and patients with asthma (12), CRSwNP (39), or both (16) were collected between December 2007 and May 2009. Groups were divided into 2 subgroups according to atopy. MMP-7, MMP-9, MMP-13, tissue inhibitors of metalloproteinases (TIMPs), TIMP-1 and TIMP-2, myeloperoxidase (MPO), and human neutrophil elastase (HNE) were measured using enzyme-linked immunosorbent assay (ELISA), and MMP-8 was determined using immunofluorometric assay. High-sensitivity C-reactive protein (hs-CRP) was measured to estimate systemic involvement., Results: Patients with asthma, CRSwNP, or both exhibited lower MMP-9, MMP-9/TIMP-1, MMP-9/TIMP-2, and MPO in nasal secretions (p < 0.05 in CRSwNP) and higher MMP-9, MMP-9/TIMP-1, MMP-9/TIMP-2, and HNE in serum (p < 0.05 in all groups) compared to controls, whereas no difference in MMP-7, MMP-13, TIMP-1, and TIMP-2 were detected. Atopy increased nasal MMP-9 and MPO expression. hs-CRP was higher in patients with CRSwNP and asthma compared to controls., Conclusion: Our findings suggest shared pathomechanisms behind asthma and CRSwNP. Contrasting local vs systemic results reflect a different ability of healthy mucosa to react to exogenous stimuli, possibly indicating a protective function of MMP-9 and possibly also MMP-8 in the airways., (© 2015 ARS-AAOA, LLC.)
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- 2015
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