Browsing Luonnontieteiden, metsätieteiden ja tekniikan tiedekunta by Title

Now showing items 726-745 of 1562

    • Increasing large scale windstorm damage in Western, Central and Northern European forests, 1951-2010 

      Gregow H; Laaksonen A; Alper ME (Springer Nature, 2017)
      Using reports of forest losses caused directly by large scale windstorms (or primary damage, PD) from the European forest institute database (comprising 276 PD reports from 1951–2010), total growing stock (TGS) statistics ...
      info:eu-repo/semantics/article

    • Indicators and Tools for Assessing Sustainability Impacts of the Forest Bioeconomy. 

      Karvonen Jaakko; Halder Pradipta; Kangas Jyrki; Leskinen Pekka (Springer Nature, 2017)
      The sustainable use of renewable resources has become an important issue worldwide in the move towards a less fossil-fuel-intensive future. Mainstream method for fulfilling this aim is to increase the share of renewable ...
      info:eu-repo/semantics/article

    • Individual and environmental factors associated with green exercise in urban and suburban areas 

      Pyky, Riitta; Neuvonen, Marjo; Kangas, Katja; Ojala, Ann; Lanki, Timo; Borodulin, Katja; Tyrväinen, Liisa (Elsevier BV, 2019)
      In this study, we mainly aimed to explore the associations of personal and socio-demographic factors, and the supply of green areas and built sports facilities with green exercise (GE). We also compared the residents of ...
      Tieteelliset aikakauslehtiartikkelit

    • INDO-NORDEN - a consortium for developing holistic processes and land use practices for clean energy 

      Shurpali N; Parameswaran B; Raud M; Sippula O; Virkajärvi P; Pumpanen J; Jokiniemi J (Elsevier BV, 2017)
      Intensive forest harvesting techniques are being used in Finland to enhance the share of bioenergy. However, there are no clear indications as to how environmentally safe are these practices. We address this issue in the ...
      info:eu-repo/semantics/article

    • Influence of an Al2O3 surface coating on the response of polymeric waveguide sensors 

      Ahmadi Leila; Hiltunen Marianne; Hiltunen Jussi; Aikio Sanna; Saarinen Jyrki; Honkanen Seppo; Roussey Matthieu (The Optical Society, 2017)
      The responses of a polymer ridge waveguide Young interferometer with and without a bilayer of Al2O3/TiO2, fabricated by atomic layer deposition, are studied and compared when applied as an aqueous chemical sensor. The phase ...
      info:eu-repo/semantics/article

    • Influence of biogenic emissions from boreal forests on aerosol-cloud interactions 

      Petäjä, T; Tabakova, K; Manninen, A; Ezhova, E; O'Connor, E; Moisseev, D; Sinclair, VA; Backman, J; Levula, J; Luoma, K; Virkkula, A; Paramonov, M; Räty, M; Äijäla, M; Heikkinen, L; Ehn, M.; Sipilä, M; Yli-Juuti, T; Virtanen, A; Ritsche, M et al (Springer Science and Business Media LLC, 2021)
      Boreal forest acts as a carbon sink and contributes to the formation of secondary organic aerosols via emission of aerosol precursor compounds. However, these influences on the climate system are poorly quantified. Here ...
      Tieteelliset aikakauslehtiartikkelit

    • Influence of coating layers on characteristics of microdisk lasers with InAs/InGaAs quantum dots active region 

      Agafonov, IY; Kryzhanovskaya, NV; Moiseev, EI; Dragunova, AS; Fetisova, MV; Kotlyar, KP; Scherbak, SA; Reduto, IV; Guseva, YuA; Lipovskii, AA; Maximov, MV; Zhukov, AE (2018)
      Quantum-dot microdisk lasers coated with different dielectric layers transparent in spectral diapason of laser radiation were studied. We observe that the coating influences the mode spectra of the microlasers, reduces the ...
      Tieteelliset aikakauslehtiartikkelit

    • Influence of Heavy Atom Effect on the Photophysics of Coinage Metal Carbene-Metal-Amide Emitters 

      Feng, Jiale; Reponen, Antti-Pekka; Romanov, Alexander S; Linnolahti, Mikko; Bochmann, Manfred; Greenham, Neil C; Penfold, Thomas; Credgington, Dan (Wiley, 2020)
      The effect of the heavy metal atom on the photophysics of carbene‐metal‐amide (CMA) photoemitters is explored, where the metal bridge is either Au, Ag, or Cu. Spectroscopic investigations reveal the coupling mechanism ...
      Tieteelliset aikakauslehtiartikkelit

    • Influence of size and shape of forest inventory units on the layout of harvest blocks in numerical forest planning 

      Pascual, Adrián; Pukkala, Timo; de Miguel, Sergio; Pesonen, Annukka; Packalen, Petteri (Springer Nature, 2018)
      Tieteelliset aikakauslehtiartikkelit

    • Influence of size reduction treatments on sugar recovery from Norway spruce for butanol production 

      Yang, Ming; Xu, Minyuan; Nan, Yufei; Kuittinen, Suvi; Hassan, Md Kamrul; Vepsäläinen, Jouko; Xin, Donglin; Zhang, Junhua; Pappinen, Ari (Elsevier BV, 2018)
      This study investigated whether the effectiveness of pretreatment is limited by a size reduction of Norway spruce wood in biobutanol production. The spruce was milled, chipped, and mashed for hydrogen peroxide-acetic acid ...
      Tieteelliset aikakauslehtiartikkelit

    • Influence of temperature on the molecular composition of ions and charged clusters during pure biogenic nucleation 

      Frege, Carla; Ortega, Ismael K; Rissanen, Matti P; Praplan, Arnaud P; Steiner, Gerhard; Heinritzi, Martin; Ahonen, Lauri; Amorim, António; Bernhammer, Anne-Kathrin; Bianchi, Federico; Brilke, Sophia; Breitenlechner, Martin; Dada, Lubna; Dias, António; Duplissy, Jonathan; Ehrhart, Sebastian; El-Haddad, Imad; Fischer, Lukas; Fuchs, Claudia; Garmash, Olga et al [incl Schobesberger Siegfried] (Copernicus GmbH, 2018)
      It was recently shown by the CERN CLOUD experiment that biogenic highly oxygenated molecules (HOMs) form particles under atmospheric conditions in the absence of sulfuric acid, where ions enhance the nucleation rate by 1–2 ...
      Tieteelliset aikakauslehtiartikkelit

    • Influence of timber harvesting costs on the layout of cuttings and economic return in forest planning based on dynamic treatment units 

      Pascual, Adrian; Pukkala, Timo; de-Miguel, Sergio; Pesonen, Annukka; Packalen, Petteri (Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria (INIA), 2018)
      Aim of study: To analyze the influence of harvesting costs on the distribution and type of cuttings when forest management planning is based on the dynamic treatment units (DTUs) approach. Area of study: A Mediterranean ...
      Tieteelliset aikakauslehtiartikkelit

    • Information Systems in Developing Countries: Opportunities and Challenges 

      Yigsaw, Samuel; Jormanainen, Ilkka; Tukiainen, Markku (ACM, 2021)
      In today's world, the advancement of Information and Communication Technologies (ICT) is revolutionizing the ways we experience life in general. It has become unavoidable for countries to engage their administration processes ...
      Artikkelit ja abstraktit tieteellisissä konferenssijulkaisuissa

    • Infrared microspectroscopic determination of collagen cross-links in articular cartilage 

      Rieppo L; Kokkonen HT; Kulmala KAM; Kovanen V; Lammi MJ; Töyräs J; Saarakkala S (SPIE Intl Soc Optical Eng, 2017)
      Collagen forms an organized network in articular cartilage to give tensile stiffness to the tissue. Due to its long half-life, collagen is susceptible to cross-links caused by advanced glycation end-products. The current ...
      info:eu-repo/semantics/article

    • Inhibition of hyperthermostable xylanases by superbase ionic liquids 

      Hebal, Hakim; Parviainen, Arno; Anbarasan, Sasikala; Li, He; Makkonen, Laura; Bankar, Sandip; King, Alistair WT; Kilpeläinen, Ilkka; Benallaoua, Said; Turunen, Ossi (Elsevier BV, 2020)
      The use of enzymes in aqueous solutions of ionic liquids (ILs) could be useful for the enzymatic treatment of lignocellulose. Hydrophilic ILs that dissolve lignocellulose are harmful to enzymes. The toleration limits and ...
      Tieteelliset aikakauslehtiartikkelit

    • Inorganic mesoporous particles for controlled [alpha]-linolenic acid delivery to stimulate GLP-1 secretion in vitro 

      Kamakura, R; Kovalainen, M; Riikonen, J; Nissinen, T; Shere Raza, G; Walkowiak, J; Lehto, VP; Herzig, KH (Elsevier BV, 2019)
      Novel treatment methods for obesity are urgently needed due to the increasing global severity of the problem. Gastrointestinal hormones, such as GLP-1 and PYY, are secreted by the enteroendocrine cells, playing a critical ...
      Tieteelliset aikakauslehtiartikkelit

    • Insect herbivory dampens Subarctic birch forest C sink response to warming 

      Silfver, Tarja; Heiskanen, Lauri; Aurela, Mika; Myller, Kristiina; Karhu, Kristiina; Meyer, Nele; Tuovinen, Juha-Pekka; Oksanen, Elina; Rousi, Matti; Mikola, Juha (Springer Science and Business Media LLC, 2020)
      Climate warming is anticipated to make high latitude ecosystems stronger C sinks through increasing plant production. This effect might, however, be dampened by insect herbivores whose damage to plants at their background, ...
      Tieteelliset aikakauslehtiartikkelit

    • Insect prey population changes in habitats with declining vs. stable Three-toed Woodpecker Picoides tridactylus populations 

      Fayt, Philippe (Suomen lintutieteellinen yhdistys, 2003)
      The effect of food supply on the Three-toed Woodpecker Picoides tridactylus breeding density and productivity was investigated by comparing the pattern of annual changes in prey abundance in habitats with declining vs. ...
      article

    • Insights into the roles of non-catalytic residues in the active site of a GH10 xylanase with activity on cellulose 

      Chu Yindi; Tu Tao; Penttinen Leena; Xue Xianli; Wang Xiaoyu; Yi Zhuolin; Gong Li; Rouvinen Juha; Luo Huiying; Hakulinen Nina; Yao Bin; Su Xiaoyun (American Society for Biochemistry & Molecular Biology (ASBMB), 2017)
      Bifunctional glycoside hydrolases have potential for cost-savings in enzymatic decomposition of plant cell wall polysaccharides for biofuels and bio-based chemicals. The N-terminal GH10 domain of a bifunctional multimodular ...
      Tieteelliset aikakauslehtiartikkelit

    • 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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