Browsing Luonnontieteiden, metsätieteiden ja tekniikan tiedekunta by Title

Now showing items 139-158 of 1562

    • Assessing Wood Waste by Timber Industry as a Contributing Factor to Deforestation in Ghana 

      Asamoah, Obed; Kuittinen, Suvi; Danquah, Jones Abrefa; Quartey, Ebo Tawiah; Bamwesigye, Dastan; Boateng, Charles Mario; Pappinen, Ari (MDPI AG, 2020)
      This study assesses the wood waste generation, its management practices, and its effects on the forests in Ghana. The rate of logging in Ghana has increased and this can be attributed to the increase in the establishment ...
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    • Assessment of cloud-related fine-mode AOD enhancements based on AERONET SDA product 

      Arola Antti; Eck Thomas F; Kokkola Harri; Pitkänen Mikko R A; Romakkaniemi Sami (Copernicus GmbH, 2017)
      AERONET (AErosol RObotic NETwork), which is a network of ground-based sun photometers, produces a data product called the aerosol spectral deconvolution algorithm (SDA) that utilizes spectral total aerosol optical depth ...
      info:eu-repo/semantics/article

    • Assessment of genotoxicity and genomic instability in rat primary astrocytes exposed to 872 MHz radiofrequency radiation and chemicals 

      Herrala, Mikko; Mustafa, Ehab; Naarala, Jonne; Juutilainen, Jukka (Informa UK Limited, 2018)
      Purpose: We examined genotoxicity, co-genotoxicity and induced genomic instability (IGI) in primary astrocytes exposed to radiofrequency (RF) radiation. Materials and methods: Rat primary astrocytes were exposed to ...
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    • Assessment of Health Risks of Intermediate Frequency Magnetic Fields 

      Herrala M; Kumari K; Blomme A; Khan MW; Koivisto H; Naarala J; Roivainen P; Tanila H; Viluksela M; Juutilainen J (Springer Singapore, 2017)
      Health effects of electromagnetic fields have been studied mainly focusing on extremely low frequency magnetic fields and radio frequency fields. Less attention has been paid to intermediate frequency magnetic fields (IF ...
      info:eu-repo/semantics/bookPart

    • Assessment of induced genomic instability in rat primary astrocytes exposed to intermediate frequency magnetic fields 

      Herrala, M; Naarala, J; Juutilainen, J (Elsevier BV, 2019)
      We investigated whether exposure to intermediate frequency magnetic fields (IF MFs) could induce or enhance genomic instability in primary astrocytes. Rat primary astrocytes were exposed to vertical or horizontal 7.5 kHz, ...
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    • Assessment Of Meniscus With Adiabatic T1p And T2p Relaxation Time In Asymptomatic Subjects And Patients With Mild Osteoarthritis: A Feasibility Study 

      Kajabi, AW; Casula, V; Nissi, MJ; Peuna, A; Podlipská, J; Lammentausta, E; Saarakkala, S; Guermazi, A; Nieminen, MT (Elsevier BV, 2018)
      Objective To investigate the ability of magnetic resonance imaging (MRI) adiabatic relaxation times in the rotating frame (adiabatic T1ρ and T2ρ) to detect structural alterations in meniscus tissue of mild OA patients and ...
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    • Association between community greenness and obesity in urban-dwelling Chinese adults 

      Huang, WZ; Yang, BY; Yu, HY; Bloom, MS; Markevych, I; Heinrich, J; Knibbs, LD; Leskinen, A; Dharmage, SC; Jalaludin, B; Morawska, L; Jalava, P; Guo, Y; Lin, S; Zhou, Y; Liu, RQ; Feng, D; Hu, LW; Zeng, XW; Hu, Q; et al. (Elsevier BV, 2020)
      Living in greener places may protect against obesity, but epidemiological evidence is inconsistent and mainly comes from developed nations. We aimed to investigate the association between greenness and obesity in Chinese ...
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    • Associations of Particulate Matter Sizes and Chemical Constituents with Blood Lipids: A Panel Study in Guangzhou, China 

      He, Zhi-Zhou; Guo, Peng-Yue; Xu, Shu-Li; Zhou, Yang; Jalaludin, Bin; Leskinen, Ari; Knibbs, Luke D; Heinrich, Joachim; Morawska, Lidia; Yim, Steve Hung-Lam; Bui, Dinh; Komppula, Mika; Roponen, Marjut; Hu, Liwen; Chen, Gongbo; Zeng, Xiao-Wen; Yu, Yunjiang; Yang, Bo-Yi; Dong, Guanghui (American Chemical Society (ACS), 2021)
      Existing evidence is scarce concerning the various effects of different PM sizes and chemical constituents on blood lipids. A panel study that involved 88 healthy college students with five repeated measurements (440 blood ...
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    • Asthmatic farm children show increased CD3+CD8low T-cells compared to non-asthmatic farm children 

      Twardziok M; Schröder PC; Krusche J; Casaca VI; Illi S; Böck A; Loss GJ; Kabesch M; Toncheva A; Roduit C; Depner M; Genuneit J; Renz H; Roponen M; Weber J; Braun-Fahrländer C; Riedler J; Lauener R; Vuitton DA; Dalphin JC et al.; the PASTURE Study Group (Elsevier BV, 2017)
      Several studies report an important role of CD8+ cytotoxic T-cells in atopy. Farm children show protection against atopy development, partly explained by CD4+ T-cell subtypes. Additional effects of CD8+ T-cells are unknown ...
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    • The ASVspoof 2017 Challenge: Assessing the Limits of Replay Spoofing Attack Detection 

      Kinnunen, Tomi; Sahidullah, Md; Delgado, Hector; Todisco, Massimiliano; Evans, Nicholas; Yamagishi, Junichi; Lee, Kong Aik (ISCA (the International Speech Communication Association), 2017)
      The ASVspoof initiative was created to promote the development of countermeasures which aim to protect automatic speaker verification (ASV) from spoofing attacks. The first community-led, common evaluation held in 2015 ...
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    • ASVspoof 2019: A large-scale public database of synthetized, converted and replayed speech 

      Wang, Xin; Yamagishi, Junichi; Todisco, Massimiliano; Delgado, Héctor; Nautsch, Andreas; Evans, Nicholas; Sahidullah, Md; Vestman, Ville; Kinnunen, Tomi; Lee, Kong Aik; Juvela, Lauri; Alku, Paavo; Peng, Yu-Huai; Hwang, Hsin-Te; Tsao, Yu; Wang, Hsin-Min; Maguer, Sébastien Le; Becker, Markus; et al. (Elsevier BV, 2020)
      Automatic speaker verification (ASV) is one of the most natural and convenient means of biometric person recognition. Unfortunately, just like all other biometric systems, ASV is vulnerable to spoofing, also referred to ...
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    • ASVspoof: the Automatic Speaker Verification Spoofing and Countermeasures Challenge 

      Wu Zhizheng; Yamagishi Junichi; Kinnunen Tomi; Hanilci Cemal; Sahidullah Mohammed; Sizov Aleksandr; Evans Nicholas; Todisco Massimiliano; Delgado Hector (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Concerns regarding the vulnerability of automatic speaker verification (ASV) technology against spoofing can undermine confidence in its reliability and form a barrier to exploitation. The absence of competitive evaluations ...
      info:eu-repo/semantics/article

    • Atlas-informed computational processing pipeline for individual targeting of brain areas for therapeutic navigated transcranial magnetic stimulation 

      Reijonen, Jusa; Könönen, Mervi; Tuunanen, Pasi; Määttä, Sara; Julkunen, Petro (Elsevier BV, 2021)
      Objective Navigated transcranial magnetic stimulation (nTMS) is targeted at different cortical sites for diagnostic, therapeutic, and neuroscientific purposes. Correct identification of the cortical target areas is important ...
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    • Atmospheric new particle formation at the research station Melpitz, Germany: connection with gaseous precursors and meteorological parameters 

      Größ, J; Hamed, A; Sonntag, A; Spindler, G; Manninen, HE; Nieminen, T; Kulmala, M; Hõrrak, U; Plass-Dülmer, C; Wiedensohler, A; Birmili, W (Copernicus GmbH, 2018)
      This paper revisits the atmospheric new particle formation (NPF) process in the polluted Central European troposphere, focusing on the connection with gas-phase precursors and meteorological parameters. Observations were ...
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    • Atomistic simulations of the swelling behaviour of Na-montmorillonite in mixed NaCl and CaCl2 solutions 

      Akinwunmi, B; Kporha, FEA; Hirvi, JT; Kasa, S; Pakkanen, TA (Elsevier BV, 2020)
      Using molecular dynamics simulations, the interlayer swelling pressure of Na-montmorillonite clay was determined at different dry densities and ionic strengths while varying the concentration of NaCl and CaCl2. The composition ...
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    • Attractive Educational Robotics Motivates Younger Students to Learn Programming and Computational Thinking 

      Jormanainen, Ilkka; Tukiainen, Markku (ACM, 2020)
      Educational robotics and physical computing have proved to be good sources of motivation for students of all ages and school levels. We conducted a series of workshops in the primary schools of city of Joensuu in eastern ...
      Artikkelit ja abstraktit tieteellisissä konferenssijulkaisuissa

    • Audiovisual Synchrony Detection with Optimized Audio Features 

      Sieranoja, Sami; Sahidullah, Md; Kinnunen, Tomi; Komulainen, Jukka; Hadid, Abdenour (IEEE, 2018)
      Audiovisual speech synchrony detection is an important part of talking-face verification systems. Prior work has primarily focused on visual features and joint-space models, while standard mel-frequency cepstral coefficients ...
      Artikkelit ja abstraktit tieteellisissä konferenssijulkaisuissa

    • Auditory-circuit-motivated deep network with application to short-term electricity price forecasting 

      Wu, Han; Liang, Yan; Gao, Xiao-Zhi; Du, Pei (Elsevier Ltd, 2024)
      Reliable electricity price forecasts are of great importance to operators and participants in power markets. However, due to mixing effects of various factors, electricity price fluctuations are too complex to extract ...

    • Augmenting Microsurgical Training: Microsurgical Instrument Detection Using Convolutional Neural Networks 

      Leppänen, Tomi; Vrzakova, Hana; Bednarik, Roman; Kanervisto, Anssi; Elomaa, Antti-Pekka; Huotarinen, Antti; Bartczak, Piotr; Fraunberg, Mikael; Jääskeläinen, Juha E (IEEE, 2018)
      In video-based training, clinicians practice and advance their skills on surgeries performed by their colleagues and themselves. Although microsurgeries are recorded daily, training centers are lacking the workforce to ...
      Artikkelit ja abstraktit tieteellisissä konferenssijulkaisuissa

    • Automated image analysis tool to measure microbial growth on solid cultures 

      Ancin-Murguzur, Fransisco Javier; Barbero-López, Aitor; Kontunen-Soppela, Sari; Haapala, Antti (Elsevier BV, 2018)
      Microbial growth on culture media is a commonplace technique to estimate the growth rate and virulence of microbes, assess inhibitory effects of compounds and estimate potential damages of plant pathogens in agriculture. ...
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