Search Results - "PERTTUNEN, J."

Root discoloration and shoot symptoms in silver birch after Phytophthora infection in vitro by Hamberg, L., Poimala, A., Velmala, S., Perttunen, J., Muilu‐Mäkelä, R., Sievänen, R., Pastor, V.

“…There are no records of established plant pathogenic Phytophthora species in Finnish forests, but they are likely in the future. Therefore, the effects of…”
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Knee Control and Jump-Landing Technique in Young Basketball and Floorball Players by Leppänen, M, Pasanen, K, Kulmala, J-P, Kujala, U M, Krosshaug, T, Kannus, P, Perttunen, J, Vasankari, T, Parkkari, J

“…Poor knee alignment is associated with increased loading of the joints, ligaments and tendons, and may increase the risk of injury. The study purpose was to…”
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Mineral mass, size, and estimated mechanical strength of triple jumpers’ lower limb by Heinonen, A, Sievänen, H, Kyröläinen, H, Perttunen, J, Kannus, P

“…This study was designed to examine the anticipated strong influence of extreme impact loading on the mineral mass, size, and gross structural properties of…”
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LIGNUM: a model combining the structure and the functioning of trees by Perttunen, J, Sievänen, R, Nikinmaa, E

“…The model LIGNUM treats a tree as a collection of a large number of simple units that correspond to the organs of a tree. The model describes the…”
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Gait asymmetry in patients with limb length discrepancy by Perttunen, J. R., Anttila, E., Södergård, J., Merikanto, J., Komi, P. V.

“…Foot loading patterns and neuromuscular function of both limbs during walking were investigated on 25 patients with limb length discrepancy. Plantar pressures…”
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Shoot growth and crown development: effect of crown position in three-dimensional simulations by Nikinmaa, Eero, Messier, Christian, Sievänen, Risto, Perttunen, Jari, Lehtonen, Mika

“…Trees have been increasingly considered as modular organisms, with individual shoots forming autonomous units that respond semi-independently to their…”
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Application of the Functional-Structural Tree Model LIGNUM to Sugar Maple Saplings (Acer saccharum Marsh) Growing in Forest Gaps by Perttunen, Jari, Nikinmaa, Eero, Lechowicz, Martin J., Sievänen, Risto, Messier, Christian

“…LIGNUM is a functional-structural model that represents a tree using four modelling units which closely resemble the real structure of trees: tree segments,…”
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LIGNUM: A Tree Model Based on Simple Structural Units by PERTTUNEN, J., SIEV ÄNEN, R., NIKINMAA, E., SALMINEN, H., SAARENMAA, H., V ÄKEV Ä, J.

“…The model LIGNUM treats a tree as a collection of a large number of simple units which correspond to the organs of the tree. The model describes the three…”
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Biomechanical loading in the triple jump by Perttunen, Jarmo, Kyrolainen, Heikki, Komi, Paavo V., Heinonen, Ari

“…The triple jump is a demanding field event in which a jumper must tolerate extremely high impact forces while maintaining high horizontal speed. The present…”
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Incorporating Lindenmayer systems for architectural development in a functional-structural tree model by Perttunen, Jari, Sievänen, Risto

“…LIGNUM is a functional-structural tree model that represents coniferous and broad-leaved trees with modelling units corresponding to the real structure of…”
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How Investors Trade Around Interim Earnings Announcements by Vieru, Markku, Perttunen, Jukka, Schadewitz, Hannu

“…:  This study focuses on non‐institutional trading behaviour around interim earnings announcements in the emerging market. We separate the stock trading…”
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Crown architecture of grafted Stone pine (Pinus pinea L.): shoot growth and bud differentiation by Mutke, S, Sievanen, R, Nikinmaa, E, Perttunen, J, Gil, L

“…The singular umbrella-like crown shape of Stone pine can be interpreted as a consequence of primary shoot-growth patterns and posterior axis differentiation…”
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Will they read you? by Perttunen, J M

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On the Significance of the Initial Solution in Travelling Salesman Heuristics by Perttunen, Jukka

“…The quality requirements set by edge exchange heuristics on their initial solutions are evaluated in connection with the travelling salesman problem. The…”
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Adaptation of the LIGNUM model for simulations of growth and light response in Jack pine by Lo, Ernest, Wang, Zhang Ming, Lechowicz, Martin, Messier, Christian, Nikinmaa, Eero, Perttunen, Jari, Sievanen, Risto

“…LIGNUM is a whole tree model, developed for Pinus sylvestris in Finland, that combines tree metabolism with a realistic spatial distribution of morphological…”
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Asymmetry of gait after free flap reconstruction of severe tibial fractures with extensive soft-tissue damage by Perttunen, J R, Nieminen, H, Tukiainen, E, Kuokkanen, H, Asko-Seljavaara, S, Komi, P V

“…Gait patterns of the preferred speed were investigated on 17 patients recovering (9 months-14 years) after reconstruction of severe tibial fractures. A novel…”
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EMG activities and plantar pressures during ski jumping take-off on three different sized hills by Virmavirta, Mikko, Perttunen, Jarmo, Komi, Paavo V.

“…Different profiles of ski jumping hills have been assumed to make the initiation of take-off difficult especially when moving from one hill to another…”
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Enhanced possibilities for analyzing tree structure as provided by an interface between different modelling systems by Dzierzon, Helge, Sievänen, Risto, Kurth, Winfried, Perttunen, Jari, Sloboda, Branislav

“…In recent years, many different advanced mathematical models and simulation systems for tree and forest growth have been developed. We show a possibility to…”
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The proportionality of financial ratios: implications for ratio classification by Kallunki, J, Martikainen, T, Perttunen, J

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Financial ratio distribution irregularities: Implications for ratio classification by Martikainen, Teppo, Perttunen, Jukka, Yli-Olli, Paavo, Gunasekaran, A.

“…This paper incorporates studies investigating the distributional characteristics of financial ratios to studies related to empirical classification of…”
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