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326 results on '"Kallio, Markku"'

9. Optimal Management of Naturally Regenerating Uneven-aged Forests

Author

Sinha, Ankur, Rämö, Janne, Malo, Pekka, Kallio, Markku, and Tahvonen, Olli

Subjects
Mathematics - Optimization and Control, Computer Science - Neural and Evolutionary Computing, G.1.6, I.2.8
Abstract

A shift from even-aged forest management to uneven-aged management practices leads to a problem rather different from the existing straightforward practice that follows a rotation cycle of artificial regeneration, thinning of inferior trees and a clearcut. A lack of realistic models and methods suggesting how to manage uneven-aged stands in a way that is economically viable and ecologically sustainable creates difficulties in adopting this new management practice. To tackle this problem, we make a two-fold contribution in this paper. The first contribution is the proposal of an algorithm that is able to handle a realistic uneven-aged stand management model that is otherwise computationally tedious and intractable. The model considered in this paper is an empirically estimated size-structured ecological model for uneven-aged spruce forests. The second contribution is on the sensitivity analysis of the forest model with respect to a number of important parameters. The analysis provides us an insight into the behavior of the uneven-aged forest model., Comment: 29 pages, 11 tables and 13 figures

Published
2016
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10. Pneumonia in childhood bacterial meningitis–Experience from three continents.

Author

Pelkonen, Tuula, Roine, Irmeli, Cruzeiro, Manuel Leite, Kallio, Markku, and Peltola, Heikki

Subjects
BACTERIAL meningitis, PNEUMONIA, DISEASE complications, CHEST X rays, CONTINENTS, MULTIVARIATE analysis
Abstract

Introduction: Although concomitant pneumonia is sometimes diagnosed in childhood bacterial meningitis, its role in the illness course and prognosis is not known. We examined these associations using prospectively collected data from Finland, Latin America and Angola. Methods: This was a secondary descriptive analysis of prospectively collected data (clinical and laboratory findings at admission, during hospitalisation and outcome) from five clinical bacterial meningitis trials. We included children aged 2 months to 15 years from sites with confirmed bacterial meningitis and potential concomitant pneumonia (diagnosed clinically with or without a chest radiograph). Results: Pneumonia was not observed in the 341 children included in Finland. Pneumonia was observed in 8% (51/606) of children in Latin America and in 46% (377/819) in Angola (p < 0.0001). In multivariate analyses, predisposing factors for pneumonia in Latin America were age <1 year, seizures and severe anaemia; the corresponding factors for Angola were preadmission duration of illness >3 days and non‐meningococcal meningitis. Concomitant pneumonia increased the severity of the disease and disabling sequelae. Conclusion: Bacterial meningitis with pneumonia is a major, previously undescribed entity of severe bacterial meningitis, especially in Angola. [ABSTRACT FROM AUTHOR]

Published
2024
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12. Currency Hedging for a Multi-national Firm

Author

Kallio, Markku, Koivu, Matti, Wang, Rudan, Price, Camille C., Series editor, Zhu, Joe, Associate editor, Hillier, Frederick S., Founding editor, Consigli, Giorgio, editor, Stefani, Silvana, editor, and Zambruno, Giovanni, editor

Published
2018
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23. Early-onset atopic dermatitis and food hypersensitivity increase the risk of atopic march

Author

Pesonen, Maria, Kallio, Markku J. T., Ranki, Annamari, Siimes, Martti A., Järvinen, Kirsi M., HUS Children and Adolescents, Children's Hospital, University of Helsinki, Helsinki University Hospital Area, Department of Dermatology, Allergology and Venereology, and HUS Inflammation Center

Subjects
ALLERGY, skin prick test, children, recurrent wheezing, 3121 General medicine, internal medicine and other clinical medicine, allergic rhinoconjunctivitis, adolescents, asthma, sensitization
Abstract

Non

Published
2022

34. Reply to Bradley

Author

Peltola, Heikki, Pääkkönen, Markus, Kallio, Pentti, and Kallio, Markku J. T.

Published
2009

44. Business students’ value priorities and attitudes towards sustainable development

Author

Bask, Anu, Halme, Merja, Kallio, Markku, Kuula, Markku, Department of Information and Service Management, Aalto-yliopisto, and Aalto University

Subjects
Attitudes towards sustainability, Schwartz value priorities, ComputingMilieux_COMPUTERSANDEDUCATION, Business schools, Education for sustainable development
Abstract

Business students of today are future executives in companies and governments. Therefore, their education for sustainability needs to be carefully considered. However, very little is known about business students in terms of their value priorities and attitudes towards sustainable development. Value priorities guide attitudes, but they are more abstract and long-lasting. Teachers who understand their students' value priorities and attitudes could develop and customize their teaching accordingly. Our goal in this study is to measure business students' value priorities and their attitudes towards sustainability. We compare the results obtained from students in a university business school with a comparable nationwide sample. Our results show that there are differences in almost all values among business students and the comparable sample, in particular in universalism and power. Interestingly, attitudes to sustainable development are equally or even more favorable among business students. As a theoretical contribution in the field of education for sustainability we combined Sterling's three levels of sustainability education into our considerations and suggest that the evolvement of students' values and sustainability attitudes measured regularly should be reflected against them or a corresponding categorization.

Published
2020

46. Real option analysis of a technology portfolio

Author

Hilli, Petri, Kallio, Maarit, and Kallio, Markku

Subjects
Investments -- Planning, Portfolio management -- Analysis, Stochastic programming -- Usage, Company business planning, Banking, finance and accounting industries, Economics
Abstract

The usage of stochastic programming for the analysis of portfolio optimization while making capacity investments in the forest industry is described.

Published
2007

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