Browsing Luonnontieteiden, metsätieteiden ja tekniikan tiedekunta by Title

Now showing items 746-765 of 1563

    • Integrated Spoofing Countermeasures and Automatic Speaker Verification: an Evaluation on ASVspoof 2015 

      Sahidullah, Md; Delgado, Hector; Todisco, Massimiliano; Yu, Hong; Kinnunen, Tomi; Evans, Nicholas; Tan, Zheng-Hua (ISCA (the International Speech Communication Association), 2016)
      It is well known that automatic speaker verification (ASV) systems can be vulnerable to spoofing. The community has responded to the threat by developing dedicated countermeasures aimed at detecting spoofing attacks. ...
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    • Integrating farm and air pollution studies in search for immunoregulatory mechanisms operating in protective and high-risk environments 

      Martikainen, MV; Rönkkö, TJ; Schaub, B; Täubel, M; Gu, C; Wong, GW; Li, J; Pekkanen, J; Komppula, M; Hirvonen, MR; Jalava, PI; Roponen, M (Wiley, 2018)
      Background Studies conducted in farm environments suggest that diverse microbial exposure promotes children's lung health. The underlying mechanisms are unclear, and the development of asthma‐preventive strategies has ...
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    • Integrating intangible resources enables creating new types of forest services - developing forest leasing value network in Finland 

      Laakkonen, Anu; Hujala, Teppo; Pykäläinen, Jouni (Elsevier BV, 2019)
      Emergence of more urban forest owners who live far from their forests challenges not only policies but also businesses for how to engage owners to active forest management. This study explores the opportunities of how ...
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    • Integrating parson's programming puzzles into a game-based mobile learning application 

      Oyelere, Solomon Sunday; Suhonen, Jarkko; Laine, Teemu H (ACM, 2017)
      Understanding of elementary programming concepts, logic, and syntax is a vital part of learning to program. Unfortunately, learning programming is found to be difficult and boring, especially for novices. For example, drill ...
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    • Integrating Social and Ecological Knowledge for Targeting Voluntary Biodiversity Conservation 

      Paloniemi R; Hujala T; Rantala S; Harlio A; Salomaa A; Primmer E; Pynnönen S; Arponen A (Wiley-Blackwell, 2017)
      Improving the effectiveness of voluntary biodiversity policies requires developing trans-disciplinary conservation plans that consider social constraints to achieving ecological objectives. We integrated data on landowners’ ...
      info:eu-repo/semantics/article

    • Intense, turbulent, or wallowing in the mire: A longitudinal study of cross-course online tactics, strategies, and trajectories 

      Saqr, Mohammed; López-Pernas, Sonsoles; Jovanović, Jelena; Gašević, Dragan (Elsevier Inc., 2023)
      Research has repeatedly demonstrated that students with effective learning strategies are more likely to have better academic achievement. Existing research has mostly focused on a single course or two, while longitudinal ...

    • Intensified emotion perception in depression: Differences in physiological arousal and subjective perceptions 

      Wenzler S; Hagen M; Tarvainen MP; Hilke M; Ghirmai N; Huthmacher A-C; Trettin M; van Dick R; Reif A; Oertel-Knöchel V (2017)
      People suffering from depression perceive themselves and their surroundings as more negative than healthy ones. An explanation might be that depressed individuals experience negative information as more stressful than ...
      info:eu-repo/semantics/article

    • Intensity and spin anisotropy of three-dimensional polarization states 

      Gil, Jose J; Norrman, Andreas; Friberg, Ari T; Setälä, Tero (The Optical Society of America, 2019)
      Anisotropy is a natural feature of polarization states, and only fully random three-dimensional (3D) states exhibit complete isotropy. In general, differences between the strengths of the electric field components along ...
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    • Interacting effects of simulated eutrophication, temperature increase, and microplastic exposure on Daphnia 

      Hiltunen, Minna; Vehniäinen, Eeva-Riikka; Kukkonen, Jussi VK (Elsevier BV, 2020)
      The effects of multiple stressors are difficult to separate in field studies, and their interactions may be hard to predict if studied in isolation. We studied the effects of decreasing food quality (increase in cyanobacteria ...
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    • Interaction between tannins and fungal necromass stabilizes fungal residues in boreal forest soils 

      Adamczyk, B; Sietiö, OM; Biasi, C; Heinonsalo, J (Wiley, 2019)
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    • Interaction effects of polyfluoroalkyl substances and sex steroid hormones on asthma among children 

      Zhou Y; Hu LW; Qian Z; Geiger SD; Parrish KL; Dharmage SC; Campbell B; Roponen M; Jalava P; Hirvonen MR; Heinrich J; Zeng XW; Yang BY; Qin XD; Lee YLL; Dong GH (Springer Nature, 2017)
      To evaluate the interactions between polyfluoroalkyl substances (PFASs) and reproductive hormones and associated asthma, a total of 231 asthmatic and 225 non-asthmatic adolescents were selected from northern Taiwan in the ...
      info:eu-repo/semantics/article

    • Interaction of Neutral Donors with Methylaluminoxane 

      Zijlstra, Harmen S.; Joshi, Anuj; Linnolahti, Mikko; Collins, Scott; McIndoe, J. Scott (Wiley, 2019)
      Methylaluminoxane (MAO) is a key activator for olefin polymerization catalysts, making its chemistry of ongoing interest. Strong and bidentate neutral donors such as 2,2′‐bipyridine are effective abstractors of the ...
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    • Interaction of polarization-sensitive surface photocurrents in semitransparent CuSe/Se film 

      Mikheev, Gennady M; Kogai, Vladimir Y; Mikheev, Konstantin G; Mogileva, Tatyana N; Saushin, Aleksandr S; Svirko, Yuri P (The Optical Society, 2021)
      We demonstrate that the transverse polarization-sensitive photoresponse of the CuSe/Se nanocomposite film deposited on a transparent substrate depends on whether the film is irradiated from the air side or substrate side. ...
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    • Interference and polarization beating of independent arbitrarily polarized polychromatic optical waves 

      Shevchenko, Andriy; Setälä, Tero (American Physical Society, 2019)
      We study the properties of optical fields created by interfering polychromatic stationary waves that have different spectra and polarizations. Such fields can exhibit both deterministic and random intensity and polarization ...
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    • Interferometric imaging of reflective micro-objects in the presence of strong aberrations 

      llina, Elena; Nyman, Markus; Monda I, Tanmay; Kaivola, Matti; Setälä, Tero; Shevchenko, Andriy (The Optical Society of America, 2020)
      Some imaging techniques reduce the effect of optical aberrations either by detecting and actively compensating for them or by utilizing interferometry. A microscope based on a Mach-Zehnder interferometer has been recently ...
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    • Interferometry and coherence of nonstationary light 

      Koivurova, Matias; Ahad, Lutful; Geloni, Gianluca; Setälä, Tero; Turunen, Jari; Friberg, Ari T (The Optical Society of America, 2019)
      We consider temporally integrating interferometric measurements and their relation to the coherence properties of nonstationary light. We find that performing such experiments as a function of time delay is equivalent to ...
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    • Interlaced zone plate optics for hard X-ray imaging in the 10 nm range 

      Mohacsi I; Vartiainen I; Rosner B; Guizar-Sicairos M; Guzenko VA; McNulty I; Winarski R; Holt MV; David C (Springer Nature, 2017)
      Multi-keV X-ray microscopy has been particularly successful in bridging the resolution gap between optical and electron microscopy. However, resolutions below 20 nm are still considered challenging, as high throughput ...
      info:eu-repo/semantics/article

    • International benchmarking of terrestrial laser scanning approaches for forest inventories 

      Liang, Xinlian; Hyyppä, Juha; Kaartinen, Harri; Lehtomäki, Matti; Pyörälä, Jiri; Pfeifer, Norbert; Holopainen, Markus; Brolly, Gábor; Francesco, Pirotti; Hackenberg, Jan; Huang, Huabing; Jo, Hyun-Woo; Katoh, Masato; Liu, Luxia; Mokros, Martin; Morel, Jules; Olofsson, Kenneth; Poveda-Lopez, Jose; Trochta, Jan; Di, Wang et al. (Elsevier BV, 2018)
      The last two decades have witnessed increasing awareness of the potential of terrestrial laser scanning (TLS) in forest applications in both public and commercial sectors, along with tremendous research efforts and progress. ...
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    • International study of childhood leukemia in residences near electrical transformer rooms 

      Crespi, Catherine M.; Sudan, Madhuri; Juutilainen, Jukka; Roivainen, Päivi; Hareuveny, Ronen; Huss, Anke; Kandel, Shaiela; Karim-Kos, Henrike E.; Thuróczy, György; Jakab, Zsuzsanna; Spycher, Ben D.; Flueckiger, Benjamin; Vermeulen, Roel; Vergara, Ximena; Kheifets, Leeka (Elsevier Inc, 2024)
      Objectives New epidemiologic approaches are needed to reduce the scientific uncertainty surrounding the association between extremely low frequency magnetic fields (ELF-MF) and childhood leukemia. While most previous ...

    • Interplay of the photon drag and the surface photogalvanic effects in the metal-semiconductor nanocomposite 

      Mikheev, GM; Saushin, AS; Styapshin, VM; Svirko, YP (Springer Nature, 2018)
      Photon drag effect (PDE) and surface photogalvanic effect (SPGE) can be observed in centrosymmetric media and manifest themselves in photocurrents, the magnitude and polarity of which depend on wavevector and polarization ...
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