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Search Results: 1 - 10 of 354 matches for " Jari Multisilta "
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Supporting Learning with Wireless Sensor Data
Jari Multisilta,Arttu Perttula
Future Internet , 2013, DOI: 10.3390/fi5010095
Abstract: In this article, learning is studied in in situ applications that involve sensors. The main questions are how to conceptualize experiential learning involving sensors and what kinds of learning applications using sensors already exist or could be designed. It is claimed that experiential learning, context information and sensor data supports twenty first century learning. The concepts of context, technology-mediated experiences, shared felt experiences and experiential learning theory will be used to describe a framework for sensor-based mobile learning environments. Several scenarios and case examples using sensors and sensor data will be presented, and they will be analyzed using the framework. Finally, the article contributes to the discussion concerning the role of technology-mediated learning experiences and collective sensor data in developing twenty first century learning by characterizing what kinds of skills and competences are supported in learning situations that involve sensors.
MoViE: Experiences and attitudes—Learning with a mobile social video application
Pauliina Tuomi,Jari Multisilta
Digital Culture & Education , 2010,
Abstract: Digital media is increasingly finding its way into the discussions of the classroom. Particularly interest is placed on mobile learning—the learning and teaching practices done with or via different mobile devices. Learning with the help of mobile devices is increasingly common and it is considered to be one of the 21st century skills children should adapt already in early stages in schools. The article presents both qualitative and quantitative study on mobile social video application, MoViE, as a part of teaching in biology and geography in 8th and 9th grades. The multidisciplinary data was processed to answer the following question: How did the use of mobile videos promote learning? The actual research question is however twofold: On one hand, it studies the use of mobile videos in mobile learning. On the other hand, it sets out to investigate the implementation of mobile video sharing as a part of the teaching and learning activities.
Persuasive Mobile Device Sound Sensing in a Classroom Setting
Arttu Perttula,Jari Multisilta,Pauliina Tuomi
International Journal of Interactive Mobile Technologies (iJIM) , 2013, DOI: 10.3991/ijim.v7i1.2262
Abstract: This paper presents an idea on how to utilize mobile phones to support learning in the classroom. The paper also tries to initiate discussion on whether we can create new kinds of learning applications using mobile devices and whether this could be the way we should proceed in developing 21st century learning applications. In this study, a mobile phone is programmed to function as a collective sound sensor. To achieve an appropriate learning atmosphere, the designed system attempts to maintain the noise level at a comfortable tolerance level in the classroom. The main aim of the mobile application is to change student behaviour through persuasive visualizations. The prototype application was piloted during spring 2012 with a total of 72 students and two teachers. The results, based on observations and interviews, are promising and several subjects for future work arose during the pilot study.
Digital Storytelling for 21st-Century Skills in Virtual Learning Environments  [PDF]
Hannele Niemi, Vilhelmiina Harju, Marianna Vivitsou, Kirsi Viitanen, Jari Multisilta, Anne Kuokkanen
Creative Education (CE) , 2014, DOI: 10.4236/ce.2014.59078

This article finds that the new virtual learning environments comprise more spaces and practices in which digital resources, tools, and applications are used. The article introduces how digital storytelling can create virtual learning environments when it is used for learning 21st-century skills and competencies needed in students’ future working life. The study describes how students (n = 319) in three countries and their teachers (n = 28) value digital storytelling and what they think students have learned. Their experiences are analyzed using a theoretical conceptualization of the global sharing pedagogy that sets categories of processes or tools as mediators: 1) learner-driven knowledge and skills creation, 2) collaboration, 3) networking, and 4) digital literacy. Analyses have been quantitative and qualitative. The article describes students’ experiences when they created their digital stories and how they engaged in learning. The major findings are that students enjoyed creating their stories, and they were very engaged in their work. They learned many 21st-century skills when creating their digital stories.

Crosslinking as an Efficient Tool for Decreasing Moisture Sensitivity of Biobased Nanocomposite Films  [PDF]
Jari Vartiainen, Ali Harlin
Materials Sciences and Applications (MSA) , 2011, DOI: 10.4236/msa.2011.25045
Abstract: Chitosan-nanoclay bio-hybrid films were successfully crosslinked with glutaraldehyde, genipin and glyoxal. Moisture sensitivity of films decreased as a result of crosslinking which led to improved barrier properties against water vapor and oxygen. Films containing chitosan (6.6 g/m2) with genipin (3.3 g/m2) and nanoclay (6.6 g/m2) had water vapor transmission rate of 72 g × 100 µm/(m2 × 24 h) which was 34% lower as compared to pure chitosan and 30% lower as compared to chitosan/nanoclay without crosslinkers. Glyoxal induced crosslinking resulted in 92% reduction in oxygen transmission rate at 80% relative humidity as compared to pure chitosan films. Oxygen transmission through glyoxal (3.3 g/m2) treated chitosan/nanoclay film was 2.8 cm3 × 100 µm/(m2 × 24 h) which was 53% lower as compared to chitosan/nanoclay without crosslinkers. In addition, nanoclay and especially glyoxal crosslinking prevented the water vapor sorption of chitosan considerably. Crosslinking may be used as an efficient tool for enhancing the exploitability of naturally hydrophilic biopolymers towards new high-value applications, such as food packaging.
BEYOND GUNS AND BUTTER: Finnish Central Government Spending Patterns the in Twentieth Century
Jari Eloranta,Jari Kauppila
Essays in Economic & Business History , 2008,
Abstract: This paper explains the long-run demand for central government spending in Finland by analyzing quantitative and qualitative changes in the spending behavior, examining possible links between variables in a VAR-framework, and performing multivariate analysis of the demand factors. The results was shoved that a explained by a lack of military versus social spending tradeoff effect. Even though certain other variables were found to be relevant in explaining this demand, this lack of a tradeoff increased the Finnish spending levels substantially during the twentieth centurt welfare state expansion.
Application for Superconvergence of Finite Element Approximations for the Elliptic Problem by Global and Local L2-Projection Methods  [PDF]
Rabeea H. Jari, Lin Mu
American Journal of Computational Mathematics (AJCM) , 2012, DOI: 10.4236/ajcm.2012.24034
Abstract: Numerical experiments are given to verify the theoretical results for superconvergence of the elliptic problem by global and local L2-Projection methods.
Note on the paper “Regulated domains and Bergman type projections”
Jari Taskinen
Journal of Function Spaces and Applications , 2004, DOI: 10.1155/2004/615850
Abstract: We show that the sufficient condition of the above mentioned paper is also necessary for the boundedness of Bergman type projections on a class of regulated domains.
E-Business Initiated Change of Business Relationship Structure and Interaction Process
Jari Salo
International Journal of Electronic Business Management , 2008,
Abstract: It is already widely known fact that e-business has been adopted across industries to better manage internal business processes as well as interfacing activities. Different types ofe-business systems including E-CRM, E-SCM, ERP1/2 among others are used to manageabove mentioned processes. Both in the academic and the business worlds e-business hasreceived undivided attention for over decade now. The focus has been on consumer marketsas well as business markets, the latter forms larger proportion of e-business when measuredin economic terms. This is our focus area. Contrary to conventional knowledge, it has beenillustrated that electronic marketplaces weaken existing business relationships and thuspertinent focus of this paper is not on these marketplaces but on business relationships.Therefore, main purpose of this paper is to conceptualize and empirically display howe-business impacts on the structure and interaction in a business relationships. In anutshell, this means we are describing novel ways to conceptualize relationship structureand process characteristics. To address this, we have made a broad literature review thatcovers pertinent parts of e-business literature and applicable aspects of businessrelationship discussion. A twin case study was conducted to compare the developedtheoretical framework with real world presented by the steel industry case studies in orderto form solid ground for our empirically grounded framework. The preliminary findingssuggest that antecedent for successful e-business adoption is a proper digital infrastructureand from there e-business enables and facilitates routine processes in relationships.
Finnish health and social welfare registers in epidemiological research
Jari Haukka
Norsk Epidemiologi , 2009,
Abstract: -
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