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Jansen, S.E.M. (author), Toet, A. (author), Werkhoven, P.J. (author)This study investigated how human locomotion through an obstacle environment is influenced by visual field limitation. Participants were asked to walk at a comfortable pace to a target location while avoiding multiple vertical objects. During this task, they wore goggles restricting their visual field to small (S: 40° × 25°), medium (M: 80° × 60...article 2011
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Chang, S.W. (author), Delleman, N.J. (author), Wang, M.J.J. (author), TNO Defensie en Veiligheid (author)The strategy for approaching a manual work position is an important reference for describing a goal-directed task. However, knowledge on this aspect of human behavior is scarce. The objectives of this study are twofold: (1) to describe and understand the strategy people tend to adopt for approaching a manual work position from different...article 2010
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Keuken, M. (author), Roemer, M. (author), van den Elshout, S. (author), TNO Kwaliteit van Leven (author)The annual air quality standard of NO2 is often exceeded in urban areas near heavy traffic locations. Despite significant decrease of NOx emissions in 1986-2005 in the industrial and harbour area near Rotterdam, NO2 concentrations at the urban background remain at the same level since the end of the nineties. Trend analysis of monitoring data...article 2009
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Hofmann, K.M. (author), Gavrilla, D.M. (author)We present a system for the estimation of unconstrained 3D human upper body movement from multiple cameras. Its main novelty lies in the integration of three components: single frame pose recovery, temporal integration and model adaptation. Single frame pose recovery consists of a hypothesis generation stage, where candidate 3D poses are...conference paper 2009
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Hofmann, K.M. (author), Gavrilla, D.M. (author)We present a system for the estimation of unconstrained 3D human upper body movement from multiple cameras. Its main novelty lies in the integration of three components: single frame pose recovery, temporal integration and model adaptation. Single frame pose recovery consists of a hypothesis generation stage, where candidate 3D poses are...conference paper 2009
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Weelink, S.A.B. (author), Tan, N.C.G. (author), ten Broeke, H. (author), van den Kieboom, C. (author), van Doesburg, W. (author), Langenhoff, A.A.M. (author), Gerritse, J. (author), Junca, H. (author), Stams, A.J.M. (author), TNO Bouw en Ondergrond (author)A bacterium, strain BC, was isolated from a benzene-degrading chlorate-reducing enrichment culture. Strain BC degrades benzene in conjunction with chlorate reduction. Cells of strain BC are short rods that are 0.6 μm wide and 1 to 2 μm long, are motile, and stain gram negative. Strain BC grows on benzene and some other aromatic compounds with...article 2008
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de Korte, E.M. (author), de Kraker, H. (author), Bongers, P.M. (author), van Lingen, P. (author), TNO Kwaliteit van Leven (author)To study the effects of a tactile feedback signal in a computer mouse on reduction of hovering behaviour and consequently on changes in muscle load, productivity, comfort and user friendliness, a comparative, experimental study with repeated measures was conducted. Fifteen subjects performed five trials with different mouse actions and a...article 2008
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Toet, A. (author), Kahrimanović, M. (author), Delleman, N.J. (author), TNO Defensie en Veiligheid (author)Restrictions of field-of-view are known to impair human performance for a range of different tasks. However, such effects on human locomotion through a complex environment are still not clear. Effects of both horizontal (30°, 75°, 112°, 120°, 140°, 160°, and 180°) and vertical (18° and 48°) field-of-view restrictions on the walking speed and...article 2008
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Toet, A. (author), Jansen, S.E.M. (author), Delleman, N.J. (author), TNO Defensie en Veiligheid (author), Nato (author)Field-of-view (FOV) restrictions are known to affect human behaviour and to degrade performance for a range of different tasks. However, the relationship between human locomotion performance in complex environments and FOV size is currently not fully known. This paper examined the effects of FOV restrictions on the performance of participants...article 2008
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TNO Defensie en Veiligheid (author), van Vliet, S.A.M. (author), Vanwersch, R.A.P. (author), Jongsma, M.J. (author), Olivier, B. (author), Philippens, I.H.C.H.M. (author)Current therapies for Parkinson's disease (PD) like l-dopa and dopamine (DA) agonists have declined efficacy after long term use. Therefore, research towards supplementary or alternative medication is needed. The implementation in PD can be expedited by application of compounds already used in the clinic. In this study the therapeutic effects of...article 2008
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TNO Defensie en Veiligheid (author), Toet, A. (author), van der Hoeven, M. (author)Field of view (FOV) restrictions are known to impair human performance for a range of different tasks. However, the effects of FOV restrictions on human locomotion through a complex environment are still not clear. This is particularly important for the development and deployment of FOV restricting devices like Head Mounted Displays (HMDs),...conference paper 2008
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Dittrich, M.G. (author), TNO Industrie en Techniek (author)The IMAGINE railway traffic noise source model is described, which is a further elaboration and completion of the Harmonoise model. Within the EU project Harmonoise, a model was proposed including most of the main railway noise sources. In the IMAGINE project, complete formulation was put forward taking all relevant physical sources but also...article 2007
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Toet, A. (author), Jansen, S.E.M. (author), Delleman, N.J. (author), TNO Defensie en Veiligheid (author)Effects of field-of-view restrictions on the speed and accuracy of participants performing a real-world manoeuvring task through an obstacled environment were investigated. Although field-of-view restrictions are known to affect human behaviour and to degrade performance for a range of different tasks, the relationship between human manoeuvring...article 2007
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TNO Defensie en Veiligheid (author), van Vliet, S.A.M. (author), Vanwersch, R.A.P. (author), Jongsma, M.J. (author), van der Gugten, J. (author), Olivier, B. (author), Philippens, I.H.C.H.M. (author)The vigilance-enhancing agent modafinil has neuroprotective properties: it prevents striatal ischemic injury, nigrostriatal pathway deterioration after partial transsection and intoxication with 1-methyl-1,2,3,6-tetrahydropyridine. The present study determines the protective effects of modafinil in the marmoset 1-methyl-1,2,3,6...article 2006
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TNO Defensie en Veiligheid (author), van Vliet, S.A.M. (author), Jongsma, M.J. (author), Vanwersch, R.A.P. (author), Olivier, B. (author), Philippens, I.H.C.H.M. (author)Rationale: Modafinil is increasingly used in sleep disturbances in general and in neurodegenerative diseases and is recently being used in healthy people for attention control. However, the application of modafinil is possibly not only restricted to alertness enhancing effects. More insight in this compound may lead to new applications. Not all...article 2006
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van der Harst, M.R. (author), Brama, P.A.J. (author), van de Lest, C.H.A. (author), Kiers, G.H. (author), de Groot, J. (author), van Weeren, P.R. (author), TNO Kwaliteit van Leven (author)Objective: In articular joints, the forces generated by locomotion are absorbed by the whole of cartilage, subchondral bone and underlying trabecular bone. The objective of this study is to test the hypothesis that regional differences in joint loading are related to clear and interrelated differences in the composition of the extracellular...article 2004
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Withagen, P.J. (author), Schutte, K. (author), Groen, F. (author), TNO Fysisch en Elektronisch Laboratorium (author)Tracking of deformable objects like humans is a basic operation in many surveillance applications. Objects are detected as they enter the field of view of the camera and they are then tracked during the time they are visible. A problem with tracking deformable objects is that the shape of the object should be re-estimated for each frame. We...conference paper 2004
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Bles, W. (author), Groen, E.L. (author), Bos, J.E. (author), de Jong, J.M.V.B. (author), Lok, J. (author), TNO Technische Menskunde (author)Five healthy subjects were submitted to sinusoidal lateral tilt (amplitude 25° at frequency of 0.2Hz) of the whole body, only the head, or only the trunk about a vertical (subject in upright position) and about a horizontal axis (subject in supine position). The ocular torsioation of the neck by manipulating only the trunk had a negligible...article 1998
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Bles, W. (author), TNO Technische Menskunde (author)Coriolis effects are notorious in relation to disorientation and motion sickness in aircrew. A review is provided of experimental data on these Coriolis effects, including the modulatory effects of adding visual or somatosensory rotatory motion information. A vector analysis of the consequences of head movements during somatosensory, visual and...article 1998
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Hopman-Rock, M. (author), Odding, E. (author), Hofman, A. (author), Kraaimaat, F.W. (author), Bijlsma, J.W.J. (author), TNO Preventie en Gezondheid (author)Objective. To determine differences in health status of people aged 55 to 74 years with pain in the hip or knee only and with additional mobility restricting conditions. Methods. A subsample from a community based study on pain, disability, comorbidity, and radio-logical osteoarthritis (OA) was used to identify a group with current pain in the...article 1997
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