Otto Visser

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—Online match-based games, such as the online versions of the board game of chess, have already captured a global audience of tens of millions of players. Through a unique combination of characteristics, a relatively short duration— often " coffee-break " minutes instead of hours of continuous gameplay—, weak correlation between matches, and clear emphasis(More)
  • Jochim S Terhaar sive Droste, Frank A Oort, René WM van der Hulst, Veerle MH Coupé, Mike E Craanen, Gerrit A Meijer +4 others
  • 2010
BACKGROUND Diagnosing colorectal cancer (CRC) at an early stage improves survival. To what extent any delay affects outcome once patients are symptomatic is still unclear.Our objectives were to evaluate the association between diagnostic delay and survival in symptomatic patients with early stage CRC and late stage CRC. METHODS Prospective(More)
—Today, Real-Time Strategy (RTS) games entertain tens of millions of players worldwide. This growing population expects new game designs and more scalable games every year. However, few tools and environments exist for game designers and implementers; of these, even fewer are available to researchers and game communities. In this work, we introduce RTSenv,(More)
Simulators are indispensable tools to support the development and testing of cooperating objects such as wireless sensor networks (WSN). However, it is often not possible to compare the results of different simulation tools. Thus, the goal of this paper is the specification of a generic simulation platform for cooperating objects. We propose a platform that(More)
BACKGROUND Recent concerns about potential overdiagnosis and overtreatment of ductal carcinoma in situ of the breast (DCIS) render evaluation of late effects of treatment, such as cardiovascular disease (CVD), of great importance. We studied cardiovascular morbidity and mortality in a large population-based cohort of DCIS patients. METHODS Data on all(More)
We studied the spatial distribution of cancer incidence rates around a large steel plant and its association with historical exposure. The study population was close to 600,000. The incidence data was collected for 1995-2006. From historical emission data the air pollution concentrations for polycyclic aromatic hydrocarbons (PAH) and metals were modelled.(More)
BACKGROUND Amsterdam Airport Schiphol is a major source of complaints about aircraft noise, safety risks and concerns about long term adverse health effects, including cancer. We investigated whether residents of the area around Schiphol are at higher risk of developing cancer than the general Dutch population. METHODS In a population-based study using(More)
It has been suggested that the cancer risk of migrants from low-income to high-income countries will converge toward the levels of their host country. However, comparisons with country of origin are mostly lacking. We compared cancer incidence and mortality rates of Surinamese migrants in the Netherlands to both native Dutch and Surinamese levels. Data(More)
  • K C A M Luyben, Rector K G Magnificus, O Langendoen, Dulman, Ir M Van Steen, Ir T Basten +25 others
  • 2012
This work was carried out in the ASCI graduate school. i It is, of course, a trifle, but there is nothing so important as trifles. – Sherlock Holmes, in The Man with the Twisted Lip ii Acknowledgements When you have committed yourself to a process of learning that stretches your thinking and takes you beyond your comfort zone, it is then that you understand(More)
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