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Birken, Linda (author)Introduction: During functional electrical stimulation (FES) the onset of muscle fatigue limits the treatment and rehabilitation of patients. In previous work, variable frequency trains (VFT) have been suggested to take advantage of a tension enhancement property in muscle. The varying of other parameters in stimulation trains, such as amplitude...master thesis 2017
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Hinkofer, Thomas (author)With an increased demand for renewable energy sources, geothermal developments have moved into the spotlight, including sedimentary structures. In the western part of the Netherlands, cretaceous sandstone bodies are already in use for the geothermal energy production. However, these reservoirs are generally producing water at temperatures less...master thesis 2017
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Petridis, Ioannis (author)Visual evoked potentials, i.e responses to visual stimulation as recorded using electroencephalography have indicated the existence of nonlinear behavior of the visual pathway. Nonlinearities and time delay in the visual system play an important role in understanding the complex nature of the visual system. This study investigated the nonlinear...master thesis 2017
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Nassirinia, F. (author), Straver, W.G.M.M. (author), Hoebeek, Freek E. (author), Serdijn, W.A. (author)Animal studies are often used to test the feasibility and effectiveness of neuroscience research ideas. Optogenetics is a state-of-the-art technique that allows researchers to control brain activity with light. Current methods are limited as they use tethered setups with the animal in a fixed position, resulting in stress and reduced animal...conference paper 2017
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Vermaire, A.A. (author)Vestibular information from both sides of the head converges within the vestibular nuclei to contribute to postural stabilization of the head and body, and to provide accurate perceptions of self-motion. It remains uncertain whether these responses are evoked through equivalent integration processes, because our perception of head position is...master thesis 2016
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Van der Heijden, I. (author)Persons spend on average one third of their life asleep. Getting enough sleep has a major impact on how a person looks, feels and functions on a daily basis. However, over the past century, there has been a consistent rapid decrease in sleep quality and an increase of sleep complaints among children, adolescents and the middle-aged population....master thesis 2016
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Brojerdyan, M. (author)The supply and demand of the Dutch office market is not in balance. 15,7% of all the offices are vacant. The most vacancy can be found in Amsterdam. Amsterdam is a big city with a large population and a large group of immigrants. There is a shortage of different types of housing, which means that transformation of vacant offices into housing...master thesis 2016
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Van Uden, M.F.M. (author)Socio-philosophers and architects hold very different views on the definition of the public realm/sphere, resulting in the neglecting of the critique of the first group on the latter. In this paper architectural solutions are discussed on this topic, looking first at what architectural elements stimulate the gathering in public places, secondly...master thesis 2016
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Kulesza, Dagmara (author), Bolek, Paulina (author), bos, A.J.J. (author), Zych, Eugeniusz (author)Ceramics of Lu2O3 activated with either Tb3+ or Pr3+ and co-doped with one of the transition metal ions – Ti, Hf or Nb – were investigated for their energy storage properties. Photoluminescence, thermoluminescence (TL) and optically stimulated luminescence spectra were recorded and discussed together with thermoluminescent glow curves. The Pr3+...journal article 2016
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Ngamkham, W. (author)Cochlear Implants (CIs) are prosthetic devices that restore hearing in profoundly deaf patients by bypassing the damaged parts of the inner ear and directly stimulating the remaining auditory nerve fibers in the cochlea with electrical pulses. This thesis describs the electronic circuit design of various modules for application in CIs in order...doctoral thesis 2015
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Giagka, V. (author), Demosthenous, A. (author), Donaldson, N. (author)Epidural spinal cord electrical stimulation (ESCS) has been used as a means to facilitate locomotor recovery in spinal cord injured humans. Electrode arrays, instead of conventional pairs of electrodes, are necessary to investigate the effect of ESCS at different sites. These usually require a large number of implanted wires, which could lead to...journal article 2015
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Gregoor, W.F. (author)A flexible bone drill provides advantages over conventional rigid instruments, because it allows surgical access via a minimally invasive approach. A new concept is to achieve this using hydropower. Hydropower could provide the advantage of energy transfer via a compliant hose through which pressurized water is flowing. The goal is to design a...master thesis 2015
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Van Dongen, M.N. (author), Serdijn, W.A. (author)Due to their DC-blocking characteristic, coupling capacitors are widely used to prevent potentially harmful charge buildup at the electrode–tissue interface. Although the capacitors can be an effective safety measure, it often seems overlooked that coupling capacitors actually introduce an offset voltage over the electrode–tissue interface as...journal article 2015
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Van Dongen, M.N. (author)Neural stimulation is an established treatment methodology for an increasing number of diseases. Electrical Stimulation injects a stimulation signal through electrodes that are implanted in the target area of the central or peripheral nervous system in order to evoke a specific neuronal response that suppresses or treats pathological activity....doctoral thesis 2015
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Van Dongen, M.N. (author), Hoebeek, F.E. (author), Koekkoek, S.K.E. (author), De Zeeuw, C.I. (author), Serdijn, W.A. (author)This paper investigates the efficacy of high frequency switched-mode neural stimulation. Instead of using a constant stimulation amplitude, the stimulus is switched on and off repeatedly with a high frequency (up to 100 kHz) duty cycled signal. By means of tissue modeling that includes the dynamic properties of both the tissue material as well...journal article 2015
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Giagka, Vasiliki (author), Demosthenous, A (author), Donaldson, N (author)Epidural spinal cord electrical stimulation (ESCS) has been used as a means to facilitate locomotor recovery in spinal cord injured humans. Electrode arrays, instead of conventional pairs of electrodes, are necessary to investigate the effect of ESCS at different sites. These usually require a large number of implantedwires,which could lead to...journal article 2015
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Heijnen, A.A. (author)Over the past centuries our way of working has changed drastically. The computer and related technologies play an important role in that. Nowadays, many people work in an office on a computer, causing them to sit a large part of the day. Sitting is comfortable for many people. However, when done for too long or in the wrong position it can lead...master thesis 2014
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Jimenez Soto, H.S. (author)Methods to stimulate living neurons in electrophysiological experiments involve the use of nerve stimulators that output deterministic patterns fixed at a certain frequency. Thus, they are unable to generate realistic sequences of action potentials to stimulate living neurons. By emulating firing patterns of excitable cells we are able to give...master thesis 2013
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Perenboom, M.J.L. (author)In movement control cortical signals are integrated with afferent feedback from reflexes. Disturbed integration is suggested to underlie many movement disorders. Cortical and afferent signals can integrate in the spinal cord and at supraspinal centres, though the exact location and mechanism of integration are unknown yet. The goal of this study...master thesis 2013
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Frankenmolle, A.M.M. (author)Parkinson?’s disease (PD) is a progressive neurodegenerative disorder characterized by reduced movement. Postural instability and gait dysfunction (PIGD) is one of the more debilitating symptoms of PD due to its effect on activities of daily life and increased risk for falls. In later stages of the disease, cognitive impairment affects executive...master thesis 2012