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A new setup to study the influence of plant growth on the consolidation of dredged cohesive sedimentBarciela Rial, M. (author), Saaltink, Remon M. (author), van Kessel, Thijs (author), Chassagne, C. (author), Dekker, Stefan C. (author), de Boer, Hugo J. (author), Griffioen, Jasper (author), Wassen, Martin J. (author), Winterwerp, J.C. (author)Dredged cohesive sediment is progressively being used for wetland construction. However, little is known about the effect of plant growth during the self-weight consolidation of this sediment. In order to check the feasibility of such a study, a new experimental setup has been constructed. As an example, the effect of Phragmites australis on the...journal article 2023
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van Leer, Martijn D. (author), Zaadnoordijk, Willem (author), Zech, Alraune (author), Buma, Jelle (author), Harting, Ronald (author), Bierkens, Marc F.P. (author), Griffioen, Jasper (author)Aquitards are common hydrogeological features and their hydraulic conductivity is an important property for various groundwater management issues. Predicting their hydraulic conductivity proves challenging, given its dependence on numerous variables. In this study, the dominant factors for predicting aquitard hydraulic conductivity are...journal article 2023
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Wagner, Daniel (author), Ranadive, Sahil Ashish (author), Griffioen, H.J. (author), Kallitsis, Michalis (author), Dainotti, Alberto (author), Smaragdakis, G. (author), Feldmann, Anja (author)Unsolicited traffic sent to advertised network space that does not host active services provides insights about misconfigurations as well as potentially malicious activities, including the spread of Botnets, DDoS campaigns, and exploitation of vulnerabilities. Network telescopes have been used for many years to monitor such unsolicited traffic....conference paper 2023
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van Leer, Martijn D. (author), Zaadnoordijk, Willem (author), Zech, Alraune (author), Griffioen, Jasper (author), Bierkens, Marc F.P. (author)Aquitards are common hydrogeological features in the subsurface. Typically, pumping tests are used to parameterize the hydraulic conductivity of heterogeneous aquitards. However, they do not take spatial variability and uncertainty into account. Alternatively, core-scale measurements of hydraulic conductivity are used in geostatistical...journal article 2023
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Stiggelbout, Anne (author), Griffioen, I.P.M. (author), Brands, Jasper (author), Melles, M. (author), Rietjens, J.A.C. (author), Kunneman, Marleen (author), Van Der Kolk, Marion (author), Van Eijck, Casper (author), Snelders, H.M.J.J. (author)Treatment decision-making can be complex, notably when there are multiple treatments available, with different (probabilities of) benefits and harms, for example, survival and side effects.1 It is precisely in these complex situations that the preferences of the patient are of utmost importance, as the trade-offs of benefits and harms are...journal article 2023
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- Kunneman, Marleen (author), Griffioen, I.P.M. (author), Labrie, Nanon H.M. (author), Kristiansen, Maria (author), Montori, Victor M. (author), van Beusekom, Mara M. (author) journal article 2023
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Griffioen, H.J. (author)The growing dependency on interconnected devices makes cyber crime increasingly lucrative. Together with the rise of premade tools to perform exploits, the number of cyber incidents grows rapidly each year. Defending against these threats becomes increasingly difficult as organizations depend heavily on the Internet and have many different...doctoral thesis 2022
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Griffioen, I.P.M. (author), Melles, M. (author), Brands, J. (author), Snelders, H.M.J.J. (author), Stiggelbout, A. (author)Beslissingen over medische behandelingen worden steeds vaker gezamenlijk genomen door de arts, de patiënt en diens naasten. In deze gedeelde besluitvorming (of Shared Decision Making - SDM) over diagnose en behandeling worden ook de waarden en voorkeuren van patiënten meegenomen (Stiggelbout et al., 2015). Onderzoek heeft aangetoond dat gedeelde...journal article 2022
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Mazza, F. (author), Griffioen, N. (author), Castellanos, Leonardo (author), Klyukin, Dmitry (author), Bohlin, G.A. (author)We present ultrabroadband two-beam femtosecond/picosecond coherent Raman spectroscopy on the ro-vibrational spectra of CO<sub>2</sub> and O<sub>2</sub>, applied for multispecies thermometry and relative concentration measurements in a standard laminar premixed hydrocarbon flame. The experimental system employs fs-laser-induced filamentation...journal article 2022
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Barciela Rial, M. (author), Vardon, P.J. (author), van Kessel, Thijs (author), Griffioen, Jasper (author), Winterwerp, J.C. (author)Progressively, more dredged sediments are being reused for engineering projects. For example, the Marker Wadden is a new wetland constructed in lake Markermeer, the Netherlands, with dredged cohesive sediments originating from the bed of the lake. Such dredged sediments are often dominated by cohesive sediment particles with varying amounts of...journal article 2022
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Griffioen, H.J. (author), Oosthoek, K. (author), van der Knaap, Paul (author), Dörr, C. (author)Amplification attacks generate an enormous flood of unwanted traffic towards a victim and are generated with the help of open, unsecured services, to which an adversary sends spoofed service requests that trigger large answer volumes to a victim. However, the actual execution of the packet flood is only one of the activities necessary for a...conference paper 2021
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Griffioen, I.P.M. (author), Rietjens, Judith A.C. (author), Melles, M. (author), Snelders, H.M.J.J. (author), Homs, Marjolein Y.V. (author), van Eijck, C.W.F. (author), Stiggelbout, Anne M. (author)Purpose: Solutions to improve the implementation of shared decision making (SDM) in oncology often focus on the consultation, with limited effects. In this study, we used a service design perspective on the care path of locally advanced pancreatic cancer (LAPC). We aimed to understand how experiences of patients, their significant others, and...journal article 2021
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Bouwman, X.B. (author), Griffioen, Harm (author), Egbers, Jelle (author), Doerr, Christian (author), Klievink, Bram (author), van Eeten, M.J.G. (author)Commercial threat intelligence is thought to provide unmatched coverage on attacker behavior, but it is out of reach for many organizations due to its hefty price tag. This paper presents the first empirical assessment of the services of commercial threat intelligence providers. For two leading vendors, we describe what these services consist of...conference paper 2020
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Naus, Floris Loys (author), Schot, Paul (author), van Breukelen, B.M. (author), Ahmed, Kazi Matin (author), Griffioen, Jasper (author)In southwestern Bangladesh, clean drinking water is scarce, since rainwater is only available during the monsoon, pond water is often bacteriologically polluted, and groundwater may exhibit high salinity and arsenic levels. Managed aquifer recharge (MAR) might potentially provide safe drinking water by storing abundant freshwater from the wet...journal article 2020
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Griffioen, M. (author), van Drunen, P. (author), Maaswinkel, E. (author), Perez, R. S.G.M. (author), Happee, R. (author), van Dieën, J. H. (author)Purpose: The goal of this study was to assess differences in low back stabilization and underlying mechanisms between patients with low back pain (LBP) and healthy controls. It has been hypothesized that inadequate trunk stabilization could contribute to LBP through high tissue strains and/or impingement. Evidence to support this is...journal article 2020
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Barciela Rial, M. (author), van Paassen, L.A. (author), Griffioen, Jasper (author), van Kessel, Thijs (author), Winterwerp, J.C. (author)We studied the drying behavior of slurries of Markermeer sediments in the Netherlands having different solid compositions. Natural processes such as sand–mud segregation and oxidation of organic matter were mimicked to analyze the effect of changes in sediment composition. Evaporation experiments were performed with soft slurry samples using...journal article 2020
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Ghiette, V.D.H. (author), Griffioen, H.J. (author), Dörr, C. (author)In SSH brute forcing attacks, adversaries try a lot of different username and password combinations in order to compromise a system. As such activities are easily recognizable in log files, sophisticated adversaries distribute brute forcing attacks over a large number of origins. Effectively finding such distributed campaigns proves however...conference paper 2019
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Barciela Rial, M. (author), Winterwerp, J.C. (author), Griffioen, Jasper (author), van Kessel, Thijs (author)Sediment is becoming scarce and fine sediments are progressively used for reclamation projects. Therefore there is an increasing need to use cohesive fine sediments (mud) for land reclamation and nature building. These sediments exhibit larger deformations and consolidation time than sandy sediment, and are therefore more challenging building...abstract 2019
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Heideveld-Chevalking, A.J. (author), Calsbeek, H. (author), Griffioen, I.P.M. (author), Damen, J. (author), Meijerink, W.J.H.J. (author), Wolff, A.P. (author)Background<br/><br/>Patient safety is a fundamental value of healthcare to avoid patient harm. Non‐compliance with patient safety standards may result in patient harm and is therefore a global concern. A Self‐assessment Instrument for Perioperative Patient Safety (SIPPS) monitoring and benchmarking compliance to safety standards was validated in...journal article 2018
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- Dekker, Stefan (author), Saaltink, Remon (author), de Boer, Hugo (author), Barciela Rial, M. (author), van Kessel, Thijs (author), Griffioen, Jasper (author), Winterwerp, J.C. (author), Wassen, Martin (author) abstract 2018