Now showing items 216-235 of 948

    • Differences in growth and gas exchange between southern and northern provenances of silver birch (Betula pendula Roth) in northern Europe 

      Tenkanen, A; Keski-Saari, S; Salojärvi, J; Oksanen, E; Keinänen, M; Kontunen-Soppela, S (Oxford University Press (OUP), 2020)
      Due to its ubiquity across northern latitudes, silver birch (Betula pendula Roth) is an attractive model species for studying geographical trait variation and acclimation capacity. Six birch provenances from 60 to 67°N ...
    • Differences in growth and wood density in clones and provenance hybrid clones of Norway spruce 

      Levkoev E; Kilpeläinen A; Luostarinen K; Pulkkinen P; Mehtätalo L; Ikonen V-P; Jaatinen R; Zhigunov A; Kangas J; Peltola H (Canadian Science PublishingKanada, 2017)
      The growing forest bioeconomy calls for enhancing wood production in Finland. Accordingly, we studied phenotypic differences and correlations for growth and wood density traits in 25 Norway spruce (Picea abies (L.) Karst.) ...
    • Digital Divide in Latin America and Europe: Main Characteristics in Selected Countries 

      Tomczyk, Lukasz; Eliseo, Maria Amelia; Costas, Vladimir; Sánchez, Gloria; Frango Silveira, Ismar; Barros, Maria-Jose; Amado-Salvatierra, Héctor R; Oyelere, Solomon Sunday (IEEE, 2019)
      This paper presents the characteristics of the digital divide (DD)in the Latin American countries on the example of: Bolivia, Brazil; Dominican Republic; Ecuador; Finland; Guatemala; Poland. The purpose of the text is to ...
    • Digital Storytelling and Blockchain as Pedagogy and Technology to Support the Development of an Inclusive Smart Learning Ecosystem 

      Oyelere, Solomon Sunday; Silveira, Ismar Frango; Martins, Valeria Farinazzo; Eliseo, Maria Amelia; Akyar, Özgür Yasar; Jauregui, Vladimir Costas; Caussin, Bernardo; Motz, Regina; Suhonen, Jarkko; Tomczyk, Lukasz (Springer International Publishing, 2020)
      This study presents the work-in-progress implementation of a smart learning ecosystem being developed to support learner centered pedagogy such as digital storytelling and recent technologies such blockchain and microsites. ...
    • Digital Storytelling in Teacher Education for Inclusion 

      Akyar, Özgür Yasar; Demirhan, Giyasettin; Oyelere, Solomon Sunday; Flores, Marcelo; Jauregui, Vladimir Costas (Springer International Publishing, 2020)
      In this paper first we share concept of workshop-based digital storytelling which we adopted for an International project called SELI (Smart Ecosystem for Learning and Inclusion) and its educational value in terms of ...
    • Dimensionality of random light fields 

      Norrman Andreas; Friberg Ari T; Gil José J; Setälä Tero (Springer Nature, 2017)
      Background The spectral polarization state and dimensionality of random light are important concepts in modern optical physics and photonics. Methods By use of space-frequency domain coherence theory, we establish a ...
    • Dimensionally Distributed Density Estimation 

      Fränti, Pasi; Sieranoja, Sami (Springer International Publishing, 2018)
      Estimating density is needed in several clustering algorithms and other data analysis methods. Straightforward calculation takes O(N2) because of the calculation of all pairwise distances. This is the main bottleneck for ...
    • Direct radiative effect by brown carbon over the Indo-Gangetic Plain 

      Arola, A; Schuster, G L; Pitkänen, M R A; Dubovik, O; Kokkola, H; Lindfors, A V; Mielonen, T; Raatikainen, T; Romakkaniemi, S; Tripathi, S N; Lihavainen, H (Copernicus GmbH, 2015-11-17)
      The importance of light-absorbing organic aerosols, often called brown carbon (BrC), has become evident in recent years. However, there have been relatively few measurement-based estimates for the direct radiative effect ...
    • Direct Writing with Tilted-Front Femtosecond Pulses 

      Patel A; Svirko Y; Durfee C; Kazansky PG (Springer Nature, 2017)
      Shaping light fields in both space and time provides new degrees of freedom to manipulate light-matter interaction on the ultrafast timescale. Through this exploitation of the light field, a greater appreciation of ...
    • Direction-Dependent Effects of Combined Static and ELF Magnetic Fields on Cell Proliferation and Superoxide Radical Production 

      Naarala Jonne; Kesari Kavindra Kumar; McClure Ian; Chavarriaga Cristina; Juutilainen Jukka; Martino Carlos F (Hindawi Limited, 2017)
      Proliferation of human umbilical vein endothelial cells was stimulated by a nearly vertical 60 or 120 μT static magnetic field (MF) in comparison to cells that were shielded against MFs. When the static field was combined ...
    • Discourse on order vs. disorder 

      Annila Arto; Baverstock Keith (Informa UK Limited, 2016)
      The second law of thermodynamics is on one hand understood to account for irrevocable flow of energy from the top down, on the other hand it is seen to imply irreversible increase of disorder. This tension between the 2 ...
    • Discriminative multi-domain PLDA for speaker verification 

      Sholokhov, Alexey; Kinnunen, Tomi; Cumani, Sandro (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Domain mismatch occurs when data from application-specific target domain is related to, but cannot be viewed as iid samples from the source domain used for training speaker models. Another problem occurs when several ...
    • Distinct anaerobic bacterial consumers of cellobiose-derived carbon in boreal fens differing in CH4 vs. CO2 production ratio 

      Juottonen Heli; Eiler Alexander; Biasi Christina; Tuittila Eeva-Stiina; Yrjälä Kim; Fritze Hannu (Yhdysvallat (USA), 2017)
      Northern peatlands in general have high methane (CH4) emissions, but individual peatlands show considerable variation as CH4 sources. Particularly in nutrient-poor peatlands, CH4 production can be low and exceeded by carbon ...
    • Distribution and Functionality of Copy Number Variation across European Cattle Populations 

      Upadhyay Maulik; da Silva Vinicus H; Megens Hendrik-Jan; Visker Marleen HPW; Ajmone-Marsan Paolo; Balteanu Valentin A; Dunner Susana; Garcia Jose F; Ginja Catarina; Kantanen Juha; Groenen Martien AM; Crooijmans Richard PMA (Frontiers Media SA, 2017)
      Copy number variation (CNV), which is characterized by large-scale losses or gains of DNA fragments, contributes significantly to genetic and phenotypic variation. Assessing CNV across different European cattle populations ...
    • Distribution and Habitat Preferences of the Invasive Alien Rosa rugosa (Rosaceae) in Archipelago Sea National Park, SW Finland 

      Kunttu Panu; Kunttu Sanna-Mari (Walter de Gruyter GmbH, 2017)
      Rosa rugosa Thunb. is an invasive alien plant which was introduced from East Asia to Europe in the 19th century. Over the decades it has spread along the Finnish coast, including the archipelagos of the Baltic Sea. The ...
    • Diurnal Freeze-Thaw Cycles Modify Winter Soil Respiration in a Desert Shrub-Land Ecosystem 

      Liu Peng; Zha Tianshan; Jia Xin; Wang Ben; Guo Xiaonan; Zhang Yuqing; Wu Bin; Yang Qiang; Peltola Heli (MDPI AG, 2016)
      Winter soil respiration (Rs) is becoming a significant component of annual carbon budgets with more warming in winter than summer. However, little is known about the controlling mechanisms of winter Rs in dryland. We made ...
    • Divergent trends in the risk of spring frost damage to trees in Europe with recent warming 

      Ma, Qianqian; Huang, Jian-Guo; Hänninen, Heikki; Berninger, Frank (Wiley, 2018)
      Frost events during the active growth period of plants can cause extensive frost damage with tremendous economic losses and dramatic ecological consequences. A common assumption is that climate warming may bring along a ...
    • Diversification of the forest industries: role of new wood-based products 

      Hurmekoski, Elias; Jonsson, Ragnar; Korhonen, Jaana; Jänis, Janne; Makinen, Marko; Leskinen, Pekka; Hetemäki, Lauri (Canadian Science Publishing, 2019)
      This study identifies new wood-based products with considerable potential and attractive markets, including textiles, liquid biofuels, platform chemicals, plastics, and packaging. We apply a mixed-methods review to examine ...
    • Do Metabolic Traits, Vulnerability to Angling, or Capture Method Explain Boldness Variation in Eurasian Perch? 

      Väätäinen, Reetta; Huuskonen, Hannu; Hyvärinen, Pekka; Kekäläinen, Jukka; Kortet, Raine; Torrehas Arnedo, Marina; Vainikka, Anssi (University of Chicago PressYhdysvallat (USA), 2018)
      The pace-of-life syndrome (POLS) concept predicts that individuals with high baseline metabolic rates demonstrate high boldness, aggressiveness, and activity, especially in food acquisition, with associated relatively ...
    • DOM-based keyword extraction from web pages 

      Shah, Himat; Rezaei, Mohammad; Fränti, Pasi (ACM Press, 2019)
      We present D-rank, an unsupervised, language and domain independent method for automatically extracting keywords from a single web page. The method does not use any corpus, and relies only on the information and features ...